Avoid "Unknown severity" message also for uppercase fatal

Avoid "Unknown severity" message for fatal
ci: Update macOS builds
2025-10-15 09:31:44 +00:00 · 2022-06-28 11:23:57 +02:00 · 2022-06-28 11:23:57 +02:00 · 2022-04-17 06:10:15 +02:00 · 2022-04-12 11:00:41 +02:00 · 2021-11-26 11:23:42 +01:00
25 changed files with 1348 additions and 792 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 ################################################################################
-# Copyright (C) 2018-2019 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  #
+# Copyright (C) 2018-2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  #
 #                                                                              #
 #              This software is distributed under the terms of the             #
 #              GNU Lesser General Public Licence (LGPL) version 3,             #
@@ -7,11 +7,12 @@
 ################################################################################

 cmake_minimum_required(VERSION 3.9.4 FATAL_ERROR)
-cmake_policy(VERSION 3.9...3.15)
+cmake_policy(VERSION 3.9...3.19)

 # Project ######################################################################
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 include(FairLoggerLib)
+include(FairFindPackage2)

 get_git_version()

@@ -53,32 +54,34 @@ add_library(FairLogger
  logger/Logger.cxx
  logger/Logger.h
 )
+target_compile_features(FairLogger PUBLIC cxx_std_14)

 if(USE_BOOST_PRETTY_FUNCTION)
  target_link_libraries(FairLogger PUBLIC Boost::boost)
  target_compile_definitions(FairLogger PUBLIC FAIRLOGGER_USE_BOOST_PRETTY_FUNCTION)
 endif()

-# legacy paths
-list(APPEND FAIRLOGGER_INSTALL_INCLUDE_DIRS ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR})
-
 if(USE_EXTERNAL_FMT)
  target_link_libraries(FairLogger PUBLIC fmt::fmt)
 else()
  add_library(fmt INTERFACE)
  target_include_directories(fmt INTERFACE
    $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/logger/bundled>
-    $<INSTALL_INTERFACE:${PROJECT_INSTALL_INCDIR}/bundled>
+    $<INSTALL_INTERFACE:${PROJECT_INSTALL_BUNDLEDINCDIR}>
  )
+  target_compile_features(fmt INTERFACE cxx_std_11)
  target_compile_definitions(fmt INTERFACE FMT_HEADER_ONLY)
  target_link_libraries(FairLogger PUBLIC fmt)
-  list(APPEND FAIRLOGGER_INSTALL_INCLUDE_DIRS ${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_INCDIR}/bundled)
+endif()
+
+if(DEFINED FAIR_MIN_SEVERITY)
+  target_compile_definitions(FairLogger PUBLIC "FAIR_MIN_SEVERITY=${FAIR_MIN_SEVERITY}")
 endif()

 target_include_directories(FairLogger
-    PUBLIC
-    $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/logger>
-    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+  PUBLIC
+  $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/logger>
+  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
 )
 set_target_properties(FairLogger PROPERTIES
  VERSION ${PROJECT_GIT_VERSION}
@@ -86,8 +89,22 @@ set_target_properties(FairLogger PROPERTIES
 )

 if(BUILD_TESTING)
-  add_executable(loggerTest test/loggerTest.cxx)
-  target_link_libraries(loggerTest FairLogger pthread)
+  add_executable(cycleTest test/cycle.cxx)
+  target_link_libraries(cycleTest FairLogger)
+  add_executable(loggerTest test/logger.cxx)
+  target_link_libraries(loggerTest FairLogger)
+  add_executable(macrosTest test/macros.cxx)
+  target_link_libraries(macrosTest FairLogger)
+  add_executable(nologTest test/nolog.cxx)
+  target_link_libraries(nologTest FairLogger)
+  add_executable(severityTest test/severity.cxx)
+  target_link_libraries(severityTest FairLogger)
+  add_executable(sinksTest test/sinks.cxx)
+  target_link_libraries(sinksTest FairLogger)
+  add_executable(threadsTest test/threads.cxx)
+  target_link_libraries(threadsTest FairLogger pthread)
+  add_executable(verbosityTest test/verbosity.cxx)
+  target_link_libraries(verbosityTest FairLogger)
 endif()
 ################################################################################

@@ -127,7 +144,22 @@ install_cmake_package()

 # Testing ######################################################################
 if(BUILD_TESTING)
-  add_test(NAME loggerTest COMMAND $<TARGET_FILE:loggerTest>)
+  add_test(NAME cycle COMMAND $<TARGET_FILE:cycleTest>)
+  add_test(NAME logger COMMAND $<TARGET_FILE:loggerTest>)
+  add_test(NAME macros COMMAND $<TARGET_FILE:macrosTest>)
+  add_test(NAME nolog COMMAND $<TARGET_FILE:nologTest>)
+  add_test(NAME severity COMMAND $<TARGET_FILE:severityTest>)
+  add_test(NAME sinks COMMAND $<TARGET_FILE:sinksTest>)
+  add_test(NAME threads COMMAND $<TARGET_FILE:threadsTest>)
+  add_test(NAME verbosity COMMAND $<TARGET_FILE:verbosityTest>)
+endif()
+################################################################################
+
+# Utils ########################################################################
+find_program(BASH bash HINTS "/bin")
+find_program(SINGULARITY singularity)
+if(BASH AND SINGULARITY)
+  add_subdirectory(test/ci)
 endif()
 ################################################################################

@@ -212,6 +244,12 @@ else()
 endif()
 message(STATUS "  ${BWhite}tests${CR}       ${testing_summary}")
 message(STATUS "  ")
+if(DEFINED FAIR_MIN_SEVERITY)
+  message(STATUS "  ${Cyan}FAIR_MIN_SEVERITY${CR}  ${BGreen}${FAIR_MIN_SEVERITY}${CR} (change with ${BMagenta}-DFAIR_MIN_SEVERITY=...${CR})")
+else()
+  message(STATUS "  ${Cyan}FAIR_MIN_SEVERITY${CR}  not defined${CR}, enabling all severities (change with ${BMagenta}-DFAIR_MIN_SEVERITY=...${CR})")
+endif()
+message(STATUS "  ")
 message(STATUS "  ${Cyan}INSTALL PREFIX${CR}     ${BGreen}${CMAKE_INSTALL_PREFIX}${CR} (change with ${BMagenta}-DCMAKE_INSTALL_PREFIX=...${CR})")
 message(STATUS "  ")
 ################################################################################
--- a/Dart.sh
+++ b/Dart.sh
@@ -1,133 +0,0 @@
-#!/bin/bash
-
-
-function print_example(){
-echo "##################################################################"
-echo "# To set the required parameters as source and the build         #"
-echo "# directory for ctest, the linux flavour and the SIMPATH         #"
-echo "# put the export commands below to a separate file which is read #"
-echo "# during execution and which is defined on the command line.     #"
-echo "# Set all parameters according to your needs.                    #"
-echo "# LINUX_FLAVOUR should be set to the distribution you are using  #"
-echo "# eg Debian, SuSe etc.                                           #"
-echo "# An additional varibale NCPU can overwrite the default number   #"
-echo "# of parallel processes used to compile the project.             #"
-echo "# This can be usefull if one can use a distributed build system  #"
-echo "# like icecream.                                                 #"
-echo "# For example                                                    #"
-echo "#!/bin/bash                                                      #"
-echo "export LINUX_FLAVOUR=<your linux flavour>                        #"
-echo "export FAIRSOFT_VERSION=<version of FairSoft>                    #"
-echo "export SIMPATH=<path to your FairSoft version>                   #"
-echo "export GIT_BRANCH=< master or dev>                               #"
-echo "export BUILDDIR=<dir where the build files go>                   #"
-echo "export SOURCEDIR=<location of the FairRoot sources>              #"
-echo "#export NCPU=100                                                 #"
-echo "##################################################################"
-}
-
-if [ "$#" -lt "2" ]; then
-  echo ""
-  echo "-- Error -- Please start script with two parameters"
-  echo "-- Error -- The first parameter is the ctest model."
-  echo "-- Error -- Possible arguments are Nightly, Experimental, "
-  echo "-- Error -- Continuous or Profile."
-  echo "-- Error -- The second parameter is the file containg the"
-  echo "-- Error -- Information about the setup at the client"
-  echo "-- Error -- installation (see example below)."
-  echo ""
-  print_example
-  exit 1
-fi
-
-# test if a valid ctest model is defined
-if [ "$1" == "Experimental" -o "$1" == "Nightly" -o "$1" == "Continuous" -o "$1" == "Profile" -o "$1" == "alfa_ci" ]; then
-  echo ""
-else
-  echo "-- Error -- This ctest model is not supported."
-  echo "-- Error -- Possible arguments are Nightly, Experimental, Continuous or Profile."
-  exit 1
-fi
-
-# test if the input file exists and execute it
-if [ -e "$2" ];then
-  source $2
-else
-  echo "-- Error -- Input file does not exist."
-  echo "-- Error -- Please choose existing input file."
-  exit 1
-fi
-
-# set the ctest model to command line parameter
-if [ "$1" == "alfa_ci" ]; then
-  export ctest_model=Experimental
-else
-  export ctest_model=$1
-fi
-
-
-# test for architecture
-arch=$(uname -s | tr '[A-Z]' '[a-z]')
-chip=$(uname -m | tr '[A-Z]' '[a-z]')
-
-# extract information about the system and the machine and set
-# environment variables used by ctest
-SYSTEM=$arch-$chip
-if test -z $CXX ; then
-  if [ "$arch" == "darwin" ]; then
-    COMPILER=$(clang --version | head -n 1 | cut -d' ' -f1,2,4 | tr -d ' ')
-  else
-    COMPILER=gcc$(gcc -dumpversion)
-  fi
-else
-  COMPILER=$CXX$($CXX -dumpversion)
-fi
-
-if [ "$1" == "alfa_ci" ]; then
-  export LABEL1=alfa_ci-$COMPILER-FairLogger_$GIT_BRANCH
-  export LABEL=$(echo $LABEL1 | sed -e 's#/#_#g')
-else
-  export LABEL1=${LINUX_FLAVOUR}-$chip-$COMPILER-FairLogger_$GIT_BRANCH
-  export LABEL=$(echo $LABEL1 | sed -e 's#/#_#g')
-fi
-
-# get the number of processors
-# and information about the host
-if [ "$arch" = "linux" ];
-then
-  if [ "$NCPU" != "" ];
-  then
-    export number_of_processors=$NCPU
-  else
-    export number_of_processors=$(cat /proc/cpuinfo | grep processor | wc -l)
-  fi
-  if [ -z "$SITE" ]; then
-    export SITE=$(hostname -f)
-    if [ -z "$SITE" ]; then
-      export SITE=$(uname -n)
-    fi
-  fi
-elif [ "$arch" = "darwin" ];
-then
-  if [ "$NCPU" != "" ];
-  then
-    export number_of_processors=$NCPU
-  else
-    export number_of_processors=$(sysctl -n hw.ncpu)
-  fi
-  if [ -z "$SITE" ]; then
-    export SITE=$(hostname -s)
-  fi
-fi
-
-echo "************************"
-date
-echo "LABEL: " $LABEL
-echo "SITE: " $SITE
-echo "Model: " ${ctest_model}
-echo "Nr. of processes: " $number_of_processors
-echo "************************"
-
-cd $SOURCEDIR
-
-ctest -S FairLoggerTest.cmake -V --VV
--- a/FairLoggerTest.cmake
+++ b/FairLoggerTest.cmake
@@ -1,69 +1,62 @@
 ################################################################################
-#    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    #
+#    Copyright (C) 2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    #
 #                                                                              #
 #              This software is distributed under the terms of the             #
 #              GNU Lesser General Public Licence (LGPL) version 3,             #
 #                  copied verbatim in the file "LICENSE"                       #
 ################################################################################
-Set(CTEST_SOURCE_DIRECTORY $ENV{SOURCEDIR})
-Set(CTEST_BINARY_DIRECTORY $ENV{BUILDDIR})
-Set(CTEST_SITE $ENV{SITE})
-Set(CTEST_BUILD_NAME $ENV{LABEL})
-Set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
-Set(CTEST_PROJECT_NAME "FairLogger")

-Find_Program(CTEST_GIT_COMMAND NAMES git)
-Set(CTEST_UPDATE_COMMAND "${CTEST_GIT_COMMAND}")
+cmake_host_system_information(RESULT fqdn QUERY FQDN)

-Set(BUILD_COMMAND "make")
-Set(CTEST_BUILD_COMMAND "${BUILD_COMMAND} -j$ENV{number_of_processors}")
+set(CTEST_SOURCE_DIRECTORY .)
+set(CTEST_BINARY_DIRECTORY build)
+set(CTEST_CMAKE_GENERATOR "Ninja")
+set(CTEST_USE_LAUNCHERS ON)
+set(CTEST_CONFIGURATION_TYPE "RelWithDebInfo")

-String(TOUPPER $ENV{ctest_model} _Model)
-Set(configure_options "-DCMAKE_BUILD_TYPE=${_Model}")
+if(NOT NCPUS)
+  if(ENV{SLURM_CPUS_PER_TASK})
+    set(NCPUS $ENV{SLURM_CPUS_PER_TASK})
+  else()
+    include(ProcessorCount)
+    ProcessorCount(NCPUS)
+    if(NCPUS EQUAL 0)
+      set(NCPUS 1)
+    endif()
+  endif()
+endif()

-Set(CTEST_USE_LAUNCHERS 1)
-Set(configure_options "${configure_options};-DCTEST_USE_LAUNCHERS=${CTEST_USE_LAUNCHERS}")
+if ("$ENV{CTEST_SITE}" STREQUAL "")
+  set(CTEST_SITE "${fqdn}")
+else()
+  set(CTEST_SITE $ENV{CTEST_SITE})
+endif()

-Set(configure_options "${configure_options};-DDISABLE_COLOR=ON")
+if ("$ENV{LABEL}" STREQUAL "")
+  set(CTEST_BUILD_NAME "build")
+else()
+  set(CTEST_BUILD_NAME $ENV{LABEL})
+endif()

-Set(EXTRA_FLAGS $ENV{EXTRA_FLAGS})
-If(EXTRA_FLAGS)
-  Set(configure_options "${configure_options};${EXTRA_FLAGS}") 
-EndIf()
+ctest_start(Continuous)

-If($ENV{ctest_model} MATCHES Nightly OR $ENV{ctest_model} MATCHES Profile)
+list(APPEND options
+  "-DDISABLE_COLOR=ON"
+  "-DUSE_EXTERNAL_FMT=ON"
+  "-DUSE_BOOST_PRETTY_FUNCTION=ON"
+  )
+list(JOIN options ";" optionsstr)
+ctest_configure(OPTIONS "${optionsstr}")

-  Find_Program(GCOV_COMMAND gcov)
-  If(GCOV_COMMAND)
-    Message("Found GCOV: ${GCOV_COMMAND}")
-    Set(CTEST_COVERAGE_COMMAND ${GCOV_COMMAND})
-  EndIf(GCOV_COMMAND)
+ctest_build(FLAGS "-j${NCPUS}")

-  Set(ENV{ctest_model} Nightly)
+ctest_test(BUILD "${CTEST_BINARY_DIRECTORY}"
+           PARALLEL_LEVEL 1
+           SCHEDULE_RANDOM ON
+           RETURN_VALUE _ctest_test_ret_val)

-  CTEST_EMPTY_BINARY_DIRECTORY(${CTEST_BINARY_DIRECTORY})
+ctest_submit()

-EndIf()
-
-Ctest_Start($ENV{ctest_model})
-
-Ctest_Configure(BUILD "${CTEST_BINARY_DIRECTORY}"
-                OPTIONS "${configure_options}"
-               )
-
-Ctest_Build(BUILD "${CTEST_BINARY_DIRECTORY}")
-
-Ctest_Test(BUILD "${CTEST_BINARY_DIRECTORY}" 
-           PARALLEL_LEVEL $ENV{number_of_processors}
-           RETURN_VALUE _ctest_test_ret_val
-          )
-
-If(GCOV_COMMAND)
-  Ctest_Coverage(BUILD "${CTEST_BINARY_DIRECTORY}")
-EndIf()
-
-Ctest_Submit()
- 
-if (_ctest_test_ret_val)
+if(_ctest_test_ret_val)
  Message(FATAL_ERROR "Some tests failed.")
 endif()
--- a/79
+++ b/79
@@ -1,51 +1,44 @@
 #!groovy

-def specToLabel(Map spec) {
-  return "${spec.os}-${spec.arch}-${spec.compiler}-FairSoft_${spec.fairsoft}"
-}
-
-def jobMatrix(String prefix, List specs, Closure callback) {
+def jobMatrix(String prefix, String type, List specs) {
  def nodes = [:]
  for (spec in specs) {
-    def label = specToLabel(spec)
-    def fairsoft = spec.fairsoft
+    job = "${spec.os}-${spec.ver}-${spec.arch}-${spec.compiler}"
+    def label = "${type}/${job}"
+    def selector = "${spec.os}-${spec.ver}-${spec.arch}"
    def os = spec.os
-    def compiler = spec.compiler
-    nodes["${prefix}/${label}"] = {
-      node(label) {
+    def ver = spec.ver
+    def check = spec.check
+
+    nodes[label] = {
+      node(selector) {
        githubNotify(context: "${prefix}/${label}", description: 'Building ...', status: 'PENDING')
        try {
          deleteDir()
          checkout scm

-          sh """\
-            echo "export SIMPATH=\${SIMPATH_PREFIX}${fairsoft}" >> Dart.cfg
-            echo "export FAIRSOFT_VERSION=${fairsoft}" >> Dart.cfg
-          """
-          if (os =~ /Debian/ && compiler =~ /gcc9/) {
-            sh '''\
-              echo "source /etc/profile.d/modules.sh" >> Dart.cfg
-              echo "module use /cvmfs/it.gsi.de/modulefiles" >> Dart.cfg
-              echo "module load compiler/gcc/9.1.0" >> Dart.cfg
-            '''
-          }
-          if (os =~ /MacOS/) {
-            sh "echo \"export EXTRA_FLAGS='-DCMAKE_CXX_COMPILER=clang++'\" >> Dart.cfg"
+          def jobscript = 'job.sh'
+          def ctestcmd = "ctest -S FairLoggerTest.cmake -V --output-on-failure"
+          sh "echo \"set -e\" >> ${jobscript}"
+          sh "echo \"export LABEL=\\\"\${JOB_BASE_NAME} ${label}\\\"\" >> ${jobscript}"
+          if (selector =~ /^macos/) {
+            sh "echo \"${ctestcmd}\" >> ${jobscript}"
+            sh "cat ${jobscript}"
+            sh "bash ${jobscript}"
          } else {
-            sh "echo \"export EXTRA_FLAGS='-DCMAKE_CXX_COMPILER=g++'\" >> Dart.cfg"
+            def containercmd = "singularity exec -B/shared ${env.SINGULARITY_CONTAINER_ROOT}/fairlogger/${os}.${ver}.sif bash -l -c \\\"${ctestcmd}\\\""
+            sh """\
+              echo \"echo \\\"*** Job started at .......: \\\$(date -R)\\\"\" >> ${jobscript}
+              echo \"echo \\\"*** Job ID ...............: \\\${SLURM_JOB_ID}\\\"\" >> ${jobscript}
+              echo \"echo \\\"*** Compute node .........: \\\$(hostname -f)\\\"\" >> ${jobscript}
+              echo \"unset http_proxy\" >> ${jobscript}
+              echo \"unset HTTP_PROXY\" >> ${jobscript}
+              echo \"${containercmd}\" >> ${jobscript}
+            """
+            sh "cat ${jobscript}"
+            sh "test/ci/slurm-submit.sh \"FairLogger \${JOB_BASE_NAME} ${label}\" ${jobscript}"
          }

-          sh '''\
-            echo "export BUILDDIR=$PWD/build" >> Dart.cfg
-            echo "export SOURCEDIR=$PWD" >> Dart.cfg
-            echo "export PATH=\\\$SIMPATH/bin:\\\$PATH" >> Dart.cfg
-            echo "export GIT_BRANCH=$JOB_BASE_NAME" >> Dart.cfg
-            echo "echo \\\$PATH" >> Dart.cfg
-          '''
-          sh 'cat Dart.cfg'
-
-          callback.call(spec, label)
-
          deleteDir()
          githubNotify(context: "${prefix}/${label}", description: 'Success', status: 'SUCCESS')
        } catch (e) {
@@ -65,13 +58,15 @@ pipeline{
    stage("Run CI Matrix") {
      steps{
        script {
-          parallel(jobMatrix('alfa-ci/build', [
-            [os: 'Debian8',    arch: 'x86_64', compiler: 'gcc9.1.0',        fairsoft: 'fairmq_dev'],
-            [os: 'MacOS10.13', arch: 'x86_64', compiler: 'AppleLLVM10.0.0', fairsoft: 'fairmq_dev'],
-            [os: 'MacOS10.14', arch: 'x86_64', compiler: 'AppleLLVM10.0.0', fairsoft: 'fairmq_dev'],
-          ]) { spec, label ->
-            sh './Dart.sh alfa_ci Dart.cfg'
-          })
+          def builds = jobMatrix('alfa-ci', 'build', [
+            [os: 'fedora', ver: '32',    arch: 'x86_64', compiler: 'gcc-10'],
+            [os: 'fedora', ver: '33',    arch: 'x86_64', compiler: 'gcc-10'],
+            [os: 'fedora', ver: '34',    arch: 'x86_64', compiler: 'gcc-11'],
+            [os: 'macos',  ver: '12',    arch: 'x86_64', compiler: 'apple-clang-13'],
+            [os: 'macos',  ver: '12',    arch: 'arm64',  compiler: 'apple-clang-13'],
+          ])
+
+          parallel(builds)
        }
      }
    }
--- a/Jenkinsfile.nightly
+++ b/Jenkinsfile.nightly
@@ -1,77 +0,0 @@
-#!groovy
-
-def specToLabel(Map spec) {
-  return "${spec.os}-${spec.arch}-${spec.compiler}-FairSoft_${spec.fairsoft}"
-}
-
-def buildMatrix(List specs, Closure callback) {
-  def nodes = [:]
-  for (spec in specs) {
-    def label = specToLabel(spec)
-    def fairsoft = spec.fairsoft
-    def os = spec.os
-    def compiler = spec.compiler
-    nodes[label] = {
-      node(label) {
-        try {
-          deleteDir()
-          checkout scm
-
-          sh """\
-            echo "export SIMPATH=\${SIMPATH_PREFIX}${fairsoft}" >> Dart.cfg
-            echo "export FAIRSOFT_VERSION=${fairsoft}" >> Dart.cfg
-          """
-          if (os =~ /Debian/ && compiler =~ /gcc9/) {
-            sh '''\
-              echo "source /etc/profile.d/modules.sh" >> Dart.cfg
-              echo "module use /cvmfs/it.gsi.de/modulefiles" >> Dart.cfg
-              echo "module load compiler/gcc/9.1.0" >> Dart.cfg
-            '''
-          }
-          if (os =~ /MacOS/) {
-            sh "echo \"export EXTRA_FLAGS='-DCMAKE_CXX_COMPILER=clang++'\" >> Dart.cfg"
-          } else {
-            sh "echo \"export EXTRA_FLAGS='-DCMAKE_CXX_COMPILER=g++'\" >> Dart.cfg"
-          }
-          sh '''\
-            echo "export BUILDDIR=$PWD/build" >> Dart.cfg
-            echo "export SOURCEDIR=$PWD" >> Dart.cfg
-            echo "export PATH=\\\$SIMPATH/bin:\\\$PATH" >> Dart.cfg
-            echo "export GIT_BRANCH=dev" >> Dart.cfg
-            echo "echo \\\$PATH" >> Dart.cfg
-          '''
-          sh 'cat Dart.cfg'
-
-          callback.call(spec, label)
-
-          deleteDir()
-        } catch (e) {
-          deleteDir()
-          throw e
-        }
-      }
-    }
-  }
-  return nodes
-}
-
-pipeline{
-  agent none
-  triggers { cron('H 2 * * *') }
-  stages {
-    stage("Run Nightly Build/Test Matrix") {
-      steps{
-        script {
-          parallel(buildMatrix([
-            [os: 'Debian8',    arch: 'x86_64', compiler: 'gcc9.1.0',        fairsoft: 'fairmq_dev'],
-            [os: 'MacOS10.13', arch: 'x86_64', compiler: 'AppleLLVM10.0.0', fairsoft: 'fairmq_dev'],
-            [os: 'MacOS10.14', arch: 'x86_64', compiler: 'AppleLLVM10.0.0', fairsoft: 'fairmq_dev'],
-          ]) { spec, label ->
-            sh './Dart.sh Nightly Dart.cfg'
-            sh './Dart.sh Profile Dart.cfg'
-          })
-        }
-      }
-    }
-  }
-}
--- a/README.md
+++ b/README.md
@@ -66,8 +66,8 @@ All log calls go through the provided LOG(severity) macro. Output through this m
 A number of additional logging macros are provided:

 - `LOGV(severity, verbosity)` Log the line with the provided verbosity, e.g. `LOG(info, veryhigh) << "abcd";`
- `LOGF(severity, ...)` The arguments are given to `fmt::format` and the result is logged, e.g. `LOGF(info, "Hello {}!", "world");`
- `LOGP(severity, ...)` The arguments are given to `fmt::printf` and the result is logged, e.g. `LOGP(info, "Hello %s!", "world");`
+- `LOGF(severity, ...)` The arguments are given to `fmt::printf`, which formats the string using a [printf syntax](https://fmt.dev/dev/api.html#printf-formatting) and the result is logged, e.g. `LOGF(info, "Hello %s!", "world");`
+- `LOGP(severity, ...)` The arguments are given to `fmt::format`, which formats the string using a [Python-like syntax](https://fmt.dev/dev/syntax.html) and the result is logged, e.g. `LOGP(info, "Hello {}!", "world");`
 - `LOGN(severity)` Logs an empty line, e.g. `LOGN(info);`
 - `LOG_IF(severity, condition)` Logs the line if the provided condition if true
 - `LOGD(severity, file, line, f)` Logs the line with the provided file, line and function parameters (only if the active verbosity allows it).
@@ -93,9 +93,12 @@ where severity level is one of the following:
 "debug2",
 "debug1",
 "debug",
+"detail",
 "info",
 "state",
 "warn",
+"important",
+"alarm",
 "error",
 "fatal",
 ```
@@ -106,12 +109,12 @@ Logger will log the chosen severity and all above it (except "nolog", which deac

 The minimum severity level can be configured at compile time via definition of `FAIR_MIN_SEVERITY`:

-```C++
-#define FAIR_MIN_SEVERITY warn // only allow severities >= warn
-#include <fairlogger/Logger.h>
 ```
+cmake -DFAIR_MIN_SEVERITY=warn ..
+```
+The above would only log severities equal to or above `warn`.

-When `FAIR_MIN_SEVERITY` is not provided, it will be set to `info` if `NDEBUG` is defined, otherwise all severities will be enabled.
+When `FAIR_MIN_SEVERITY` is not provided all severities are enabled.

 ## 4. Verbosity

@@ -126,8 +129,8 @@ it is same for all sinks, and is one of the following values: `verylow`, `low`,
 verylow:  message
 low:      [severity] message
 medium:   [HH:MM:SS][severity] message
-high:     [process name][HH:MM:SS][severity] message
-veryhigh: [process name][HH:MM:SS:µS][severity][file:line:function] message
+high:     [process_name][HH:MM:SS][severity] message
+veryhigh: [process_name][HH:MM:SS:µS][severity][file:line:function] message
 user1:    [severity] message
 user2:    [severity] message
 user3:    [severity] message
@@ -146,12 +149,12 @@ The `fair::Logger::VerbositySpec` object can e.g. be created like this:
 ```C++
 auto spec = fair::VerbositySpec::Make(VerbositySpec::Info::timestamp_s,
                                      VerbositySpec::Info::process_name);
-// results in [HH:MM:SS][process name] message
+// results in [HH:MM:SS][process_name] message
 ```

 | **Argument** | **Result** |
 | --- | --- |
-| `fair::VerbositySpec::Info::process_name`       | `[process name]`       |
+| `fair::VerbositySpec::Info::process_name`       | `[process_name]`       |
 | `fair::VerbositySpec::Info::timestamp_s`        | `[HH:MM:SS]`           |
 | `fair::VerbositySpec::Info::timestamp_us`       | `[HH:MM:SS:µS]`        |
 | `fair::VerbositySpec::Info::severity`           | `[severity]`           |
@@ -234,4 +237,4 @@ Define an option `FAIR_NO_LOG*` to prevent the above unprefixed macros to be def

 GNU Lesser General Public Licence (LGPL) version 3, see [LICENSE](LICENSE).

-Copyright (C) 2017-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
+Copyright (C) 2017-2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
--- a/cmake/FairFindPackage2.cmake
+++ b/cmake/FairFindPackage2.cmake
@@ -0,0 +1,102 @@
+################################################################################
+# Copyright (C) 2018-2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  #
+#                                                                              #
+#              This software is distributed under the terms of the             #
+#              GNU Lesser General Public Licence (LGPL) version 3,             #
+#                  copied verbatim in the file "LICENSE"                       #
+################################################################################
+
+#
+# find_package2(PRIVATE|PUBLIC|INTERFACE <pkgname>
+#               [VERSION <version>]
+#               [COMPONENTS <list of components>]
+#               [ADD_REQUIREMENTS_OF <list of dep_pgkname>]
+#               [any other option the native find_package supports]...)
+#
+# Wrapper around CMake's native find_package command to add some features and bookkeeping.
+#
+# The qualifier (PRIVATE|PUBLIC|INTERFACE) to the package to populate
+# the variables PROJECT_[INTERFACE]_<pkgname>_([VERSION]|[COMPONENTS]|PACKAGE_DEPENDENCIES)
+# accordingly. This bookkeeping information is used to print our dependency found summary
+# table and to generate a part of our CMake package.
+#
+# When a dependending package is listed with ADD_REQUIREMENTS_OF the variables
+# <dep_pkgname>_<pkgname>_VERSION|COMPONENTS are looked up to and added to the native
+# VERSION (selected highest version) and COMPONENTS (deduplicated) args.
+#
+# COMPONENTS and VERSION args are then just passed to the native find_package.
+#
+macro(find_package2 qualifier pkgname)
+  cmake_parse_arguments(ARGS "" "VERSION" "COMPONENTS;ADD_REQUIREMENTS_OF" ${ARGN})
+
+  string(TOUPPER ${pkgname} pkgname_upper)
+  set(__old_cpp__ ${CMAKE_PREFIX_PATH})
+  set(CMAKE_PREFIX_PATH ${${pkgname_upper}_ROOT} $ENV{${pkgname_upper}_ROOT} ${CMAKE_PREFIX_PATH})
+
+  # build lists of required versions and components
+  unset(__required_versions__)
+  unset(__components__)
+  if(ARGS_VERSION)
+    list(APPEND __required_versions__ ${ARGS_VERSION})
+  endif()
+  if(ARGS_COMPONENTS)
+    list(APPEND __components__ ${ARGS_COMPONENTS})
+  endif()
+  if(ARGS_ADD_REQUIREMENTS_OF)
+    foreach(dep_pkgname IN LISTS ARGS_ADD_REQUIREMENTS_OF)
+      if(${dep_pkgname}_${pkgname}_VERSION)
+        list(APPEND __required_versions__ ${${dep_pkgname}_${pkgname}_VERSION})
+      endif()
+      if(${dep_pkgname}_${pkgname}_COMPONENTS)
+        list(APPEND __components__ ${${dep_pkgname}_${pkgname}_COMPONENTS})
+      endif()
+    endforeach()
+  endif()
+
+  # select highest required version
+  unset(__version__)
+  if(__required_versions__)
+    list(GET __required_versions__ 0 __version__)
+    foreach(v IN LISTS __required_versions__)
+      if(${v} VERSION_GREATER ${__version__})
+        set(__version__ ${v})
+      endif()
+    endforeach()
+  endif()
+  # deduplicate required component list
+  if(__components__)
+    list(REMOVE_DUPLICATES ARGS_COMPONENTS)
+  endif()
+
+  # call native find_package
+  if(__components__)
+    find_package(${pkgname} ${__version__} QUIET COMPONENTS ${__components__} ${ARGS_UNPARSED_ARGUMENTS})
+  else()
+    find_package(${pkgname} ${__version__} QUIET ${ARGS_UNPARSED_ARGUMENTS})
+  endif()
+
+  if(${pkgname}_FOUND)
+    if(${qualifier} STREQUAL PRIVATE)
+      set(PROJECT_${pkgname}_VERSION ${__version__})
+      set(PROJECT_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
+      set(PROJECT_PACKAGE_DEPENDENCIES ${PROJECT_PACKAGE_DEPENDENCIES} ${pkgname})
+    elseif(${qualifier} STREQUAL PUBLIC)
+      set(PROJECT_${pkgname}_VERSION ${__version__})
+      set(PROJECT_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
+      set(PROJECT_PACKAGE_DEPENDENCIES ${PROJECT_PACKAGE_DEPENDENCIES} ${pkgname})
+      set(PROJECT_INTERFACE_${pkgname}_VERSION ${__version__})
+      set(PROJECT_INTERFACE_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
+      set(PROJECT_INTERFACE_PACKAGE_DEPENDENCIES ${PROJECT_INTERFACE_PACKAGE_DEPENDENCIES} ${pkgname})
+    elseif(${qualifier} STREQUAL INTERFACE)
+      set(PROJECT_INTERFACE_${pkgname}_VERSION ${__version__})
+      set(PROJECT_INTERFACE_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
+      set(PROJECT_INTERFACE_PACKAGE_DEPENDENCIES ${PROJECT_INTERFACE_PACKAGE_DEPENDENCIES} ${pkgname})
+    endif()
+  endif()
+
+  unset(__version__)
+  unset(__components__)
+  unset(__required_versions__)
+  set(CMAKE_PREFIX_PATH ${__old_cpp__})
+  unset(__old_cpp__)
+endmacro()
--- a/cmake/FairLoggerConfig.cmake.in
+++ b/cmake/FairLoggerConfig.cmake.in
@@ -1,5 +1,5 @@
 ################################################################################
-# Copyright (C) 2018-2019 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  #
+# Copyright (C) 2018-2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  #
 #                                                                              #
 #              This software is distributed under the terms of the             #
 #              GNU Lesser General Public Licence (LGPL) version 3,             #
@@ -15,8 +15,8 @@ set(@PROJECT_NAME@_GIT_DATE @PROJECT_GIT_DATE@)

 set_and_check(@PROJECT_NAME@_PREFIX @PACKAGE_CMAKE_INSTALL_PREFIX@)
 set(@PROJECT_NAME@_BINDIR @PACKAGE_CMAKE_INSTALL_PREFIX@/@PROJECT_INSTALL_BINDIR@)
-set(@PROJECT_NAME@_INCDIR @FAIRLOGGER_INSTALL_INCLUDE_DIRS@)
-set(@PROJECT_NAME@_INCDIRS @FAIRLOGGER_INSTALL_INCLUDE_DIRS@)
+set(@PROJECT_NAME@_INCDIR @PACKAGE_INSTALL_INCDIRS@)
+set(@PROJECT_NAME@_INCDIRS @PACKAGE_INSTALL_INCDIRS@)
 set_and_check(@PROJECT_NAME@_LIBDIR @PACKAGE_CMAKE_INSTALL_PREFIX@/@PROJECT_INSTALL_LIBDIR@)

 set(@PROJECT_NAME@_CXX_STANDARD_REQUIRED @CMAKE_CXX_STANDARD_REQUIRED@)
--- a/cmake/FairLoggerLib.cmake
+++ b/cmake/FairLoggerLib.cmake
@@ -1,5 +1,5 @@
 ################################################################################
-# Copyright (C) 2018-2019 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  #
+# Copyright (C) 2018-2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  #
 #                                                                              #
 #              This software is distributed under the terms of the             #
 #              GNU Lesser General Public Licence (LGPL) version 3,             #
@@ -94,24 +94,22 @@ macro(set_fairlogger_defaults)
  endif()

  # Handle C++ standard level
-  set(PROJECT_MIN_CXX_STANDARD 11)
-  set(CMAKE_CXX_STANDARD_REQUIRED ON)
-  if(NOT CMAKE_CXX_STANDARD)
-    set(CMAKE_CXX_STANDARD ${PROJECT_MIN_CXX_STANDARD})
-  elseif(${CMAKE_CXX_STANDARD} LESS ${PROJECT_MIN_CXX_STANDARD})
+  set(PROJECT_MIN_CXX_STANDARD 14)
+  if(CMAKE_CXX_STANDARD LESS PROJECT_MIN_CXX_STANDARD)
    message(FATAL_ERROR "A minimum CMAKE_CXX_STANDARD of ${PROJECT_MIN_CXX_STANDARD} is required.")
  endif()
-  set(CMAKE_CXX_EXTENSIONS OFF)

  # Generate compile_commands.json file (https://clang.llvm.org/docs/JSONCompilationDatabase.html)
-  set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+  if(NOT DEFINED CMAKE_EXPORT_COMPILE_COMMANDS)
+    set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+  endif()

-  if(NOT BUILD_SHARED_LIBS)
+  if(NOT DEFINED BUILD_SHARED_LIBS)
    set(BUILD_SHARED_LIBS ON CACHE BOOL "Whether to build shared libraries or static archives")
  endif()

  # Set -fPIC as default for all library types
-  if(NOT CMAKE_POSITION_INDEPENDENT_CODE)
+  if(NOT DEFINED CMAKE_POSITION_INDEPENDENT_CODE)
    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
  endif()

@@ -122,6 +120,7 @@ macro(set_fairlogger_defaults)
  set(PROJECT_INSTALL_BINDIR ${CMAKE_INSTALL_BINDIR})
  set(PROJECT_INSTALL_LIBDIR ${CMAKE_INSTALL_LIBDIR})
  set(PROJECT_INSTALL_INCDIR ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME_LOWER})
+  set(PROJECT_INSTALL_BUNDLEDINCDIR ${PROJECT_INSTALL_INCDIR}/bundled)
  set(PROJECT_INSTALL_DATADIR ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME_LOWER})

  # https://cmake.org/Wiki/CMake_RPATH_handling
@@ -129,13 +128,13 @@ macro(set_fairlogger_defaults)
  list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}" isSystemDir)
  if("${isSystemDir}" STREQUAL "-1")
    if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
-      set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} "-Wl,--enable-new-dtags")
-      set(CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS} "-Wl,--enable-new-dtags")
-      set(CMAKE_INSTALL_RPATH "$ORIGIN/../${PROJECT_INSTALL_LIBDIR}")
+      list(APPEND CMAKE_EXE_LINKER_FLAGS "-Wl,--enable-new-dtags")
+      list(APPEND CMAKE_SHARED_LINKER_FLAGS "-Wl,--enable-new-dtags")
+      list(APPEND CMAKE_INSTALL_RPATH "$ORIGIN/../${PROJECT_INSTALL_LIBDIR}")
    elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
-      set(CMAKE_INSTALL_RPATH "@loader_path/../${PROJECT_INSTALL_LIBDIR}")
+      list(APPEND CMAKE_INSTALL_RPATH "@loader_path/../${PROJECT_INSTALL_LIBDIR}")
    else()
-      set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}")
+      list(APPEND CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}")
    endif()
  endif()

@@ -227,6 +226,13 @@ macro(install_cmake_package)
    VERSION ${PROJECT_VERSION}
    COMPATIBILITY AnyNewerVersion
  )
+  unset(PACKAGE_INSTALL_INCDIRS)
+  list(APPEND PACKAGE_INSTALL_INCDIRS
+    \$\{PACKAGE_PREFIX_DIR\}/${CMAKE_INSTALL_INCLUDEDIR})
+  if(NOT USE_EXTERNAL_FMT)
+    list(APPEND PACKAGE_INSTALL_INCDIRS
+      \$\{PACKAGE_PREFIX_DIR\}/${PROJECT_INSTALL_BUNDLEDINCDIR})
+  endif()
  generate_package_dependencies() # fills ${PACKAGE_DEPENDENCIES}
  string(TOUPPER ${CMAKE_BUILD_TYPE} PROJECT_BUILD_TYPE_UPPER)
  set(PROJECT_CXX_FLAGS ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${PROJECT_BUILD_TYPE_UPPER}})
@@ -242,98 +248,3 @@ macro(install_cmake_package)
    DESTINATION ${PACKAGE_INSTALL_DESTINATION}
  )
 endmacro()
-
-#
-# find_package2(PRIVATE|PUBLIC|INTERFACE <pkgname>
-#               [VERSION <version>]
-#               [COMPONENTS <list of components>]
-#               [ADD_REQUIREMENTS_OF <list of dep_pgkname>]
-#               [any other option the native find_package supports]...)
-#
-# Wrapper around CMake's native find_package command to add some features and bookkeeping.
-#
-# The qualifier (PRIVATE|PUBLIC|INTERFACE) to the package to populate
-# the variables PROJECT_[INTERFACE]_<pkgname>_([VERSION]|[COMPONENTS]|PACKAGE_DEPENDENCIES)
-# accordingly. This bookkeeping information is used to print our dependency found summary
-# table and to generate a part of our CMake package.
-#
-# When a dependending package is listed with ADD_REQUIREMENTS_OF the variables
-# <dep_pkgname>_<pkgname>_VERSION|COMPONENTS are looked up to and added to the native
-# VERSION (selected highest version) and COMPONENTS (deduplicated) args.
-#
-# COMPONENTS and VERSION args are then just passed to the native find_package.
-#
-macro(find_package2 qualifier pkgname)
-  cmake_parse_arguments(ARGS "" "VERSION" "COMPONENTS;ADD_REQUIREMENTS_OF" ${ARGN})
-
-  string(TOUPPER ${pkgname} pkgname_upper)
-  set(__old_cpp__ ${CMAKE_PREFIX_PATH})
-  set(CMAKE_PREFIX_PATH ${${pkgname_upper}_ROOT} $ENV{${pkgname_upper}_ROOT} ${CMAKE_PREFIX_PATH})
-
-  # build lists of required versions and components
-  unset(__required_versions__)
-  unset(__components__)
-  if(ARGS_VERSION)
-    list(APPEND __required_versions__ ${ARGS_VERSION})
-  endif()
-  if(ARGS_COMPONENTS)
-    list(APPEND __components__ ${ARGS_COMPONENTS})
-  endif()
-  if(ARGS_ADD_REQUIREMENTS_OF)
-    foreach(dep_pkgname IN LISTS ARGS_ADD_REQUIREMENTS_OF)
-      if(${dep_pkgname}_${pkgname}_VERSION)
-        list(APPEND __required_versions__ ${${dep_pkgname}_${pkgname}_VERSION})
-      endif()
-      if(${dep_pkgname}_${pkgname}_COMPONENTS)
-        list(APPEND __components__ ${${dep_pkgname}_${pkgname}_COMPONENTS})
-      endif()
-    endforeach()
-  endif()
-
-  # select highest required version
-  unset(__version__)
-  if(__required_versions__)
-    list(GET __required_versions__ 0 __version__)
-    foreach(v IN LISTS __required_versions__)
-      if(${v} VERSION_GREATER ${__version__})
-        set(__version__ ${v})
-      endif()
-    endforeach()
-  endif()
-  # deduplicate required component list
-  if(__components__)
-    list(REMOVE_DUPLICATES ARGS_COMPONENTS)
-  endif()
-
-  # call native find_package
-  if(__components__)
-    find_package(${pkgname} ${__version__} QUIET COMPONENTS ${__components__} ${ARGS_UNPARSED_ARGUMENTS})
-  else()
-    find_package(${pkgname} ${__version__} QUIET ${ARGS_UNPARSED_ARGUMENTS})
-  endif()
-
-  if(${pkgname}_FOUND)
-    if(${qualifier} STREQUAL PRIVATE)
-      set(PROJECT_${pkgname}_VERSION ${__version__})
-      set(PROJECT_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
-      set(PROJECT_PACKAGE_DEPENDENCIES ${PROJECT_PACKAGE_DEPENDENCIES} ${pkgname})
-    elseif(${qualifier} STREQUAL PUBLIC)
-      set(PROJECT_${pkgname}_VERSION ${__version__})
-      set(PROJECT_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
-      set(PROJECT_PACKAGE_DEPENDENCIES ${PROJECT_PACKAGE_DEPENDENCIES} ${pkgname})
-      set(PROJECT_INTERFACE_${pkgname}_VERSION ${__version__})
-      set(PROJECT_INTERFACE_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
-      set(PROJECT_INTERFACE_PACKAGE_DEPENDENCIES ${PROJECT_INTERFACE_PACKAGE_DEPENDENCIES} ${pkgname})
-    elseif(${qualifier} STREQUAL INTERFACE)
-      set(PROJECT_INTERFACE_${pkgname}_VERSION ${__version__})
-      set(PROJECT_INTERFACE_${pkgname}_COMPONENTS ${ARGS_COMPONENTS})
-      set(PROJECT_INTERFACE_PACKAGE_DEPENDENCIES ${PROJECT_INTERFACE_PACKAGE_DEPENDENCIES} ${pkgname})
-    endif()
-  endif()
-
-  unset(__version__)
-  unset(__components__)
-  unset(__required_versions__)
-  set(CMAKE_PREFIX_PATH ${__old_cpp__})
-  unset(__old_cpp__)
-endmacro()
--- a/logger/Logger.cxx
+++ b/logger/Logger.cxx
@@ -15,6 +15,7 @@

 #include <cstdio> // printf
 #include <iostream>
+#include <iterator> // std::back_inserter

 using namespace std;

@@ -23,31 +24,12 @@ namespace fair

 using VSpec = VerbositySpec;

-string GetColoredSeverityString(Severity severity)
-{
-    switch (severity) {
-        case Severity::nolog:  return "\033[01;39mNOLOG\033[0m";  break;
-        case Severity::fatal:  return "\033[01;31mFATAL\033[0m";  break;
-        case Severity::error:  return "\033[01;31mERROR\033[0m";  break;
-        case Severity::warn:   return "\033[01;33mWARN\033[0m";   break;
-        case Severity::state:  return "\033[01;35mSTATE\033[0m";  break;
-        case Severity::info:   return "\033[01;32mINFO\033[0m";   break;
-        case Severity::debug:  return "\033[01;34mDEBUG\033[0m";  break;
-        case Severity::debug1: return "\033[01;34mDEBUG1\033[0m"; break;
-        case Severity::debug2: return "\033[01;34mDEBUG2\033[0m"; break;
-        case Severity::debug3: return "\033[01;34mDEBUG3\033[0m"; break;
-        case Severity::debug4: return "\033[01;34mDEBUG4\033[0m"; break;
-        case Severity::trace:  return "\033[01;36mTRACE\033[0m";  break;
-        default:               return "UNKNOWN";                  break;
-    }
-}
-
 bool Logger::fColored = false;
 fstream Logger::fFileStream;
 Verbosity Logger::fVerbosity = Verbosity::low;
-Severity Logger::fConsoleSeverity = Severity::info;
+Severity Logger::fConsoleSeverity = Severity::FAIR_MIN_SEVERITY > Severity::info ? Severity::FAIR_MIN_SEVERITY : Severity::info;
+Severity Logger::fMinSeverity = Severity::FAIR_MIN_SEVERITY > Severity::info ? Severity::FAIR_MIN_SEVERITY : Severity::info;
 Severity Logger::fFileSeverity = Severity::nolog;
-Severity Logger::fMinSeverity = Severity::info;
 function<void()> Logger::fFatalCallback;
 unordered_map<string, pair<Severity, function<void(const string& content, const LogMetaData& metadata)>>> Logger::fCustomSinks;
 mutex Logger::fMtx;
@@ -64,51 +46,56 @@ const string Logger::fProcessName = "?";

 const unordered_map<string, Verbosity> Logger::fVerbosityMap =
 {
-    { "veryhigh", Verbosity::veryhigh  },
-    { "high",     Verbosity::high      },
-    { "medium",   Verbosity::medium    },
-    { "low",      Verbosity::low       },
-    { "verylow",  Verbosity::verylow   },
-    { "VERYHIGH", Verbosity::veryhigh  },
-    { "HIGH",     Verbosity::high      },
-    { "MEDIUM",   Verbosity::medium    },
-    { "LOW",      Verbosity::low       },
-    { "VERYLOW",  Verbosity::verylow   },
-    { "user1",    Verbosity::user1     },
-    { "user2",    Verbosity::user2     },
-    { "user3",    Verbosity::user3     },
-    { "user4",    Verbosity::user4     }
+    { "veryhigh", Verbosity::veryhigh },
+    { "high",     Verbosity::high     },
+    { "medium",   Verbosity::medium   },
+    { "low",      Verbosity::low      },
+    { "verylow",  Verbosity::verylow  },
+    { "VERYHIGH", Verbosity::veryhigh },
+    { "HIGH",     Verbosity::high     },
+    { "MEDIUM",   Verbosity::medium   },
+    { "LOW",      Verbosity::low      },
+    { "VERYLOW",  Verbosity::verylow  },
+    { "user1",    Verbosity::user1    },
+    { "user2",    Verbosity::user2    },
+    { "user3",    Verbosity::user3    },
+    { "user4",    Verbosity::user4    }
 };

 const unordered_map<string, Severity> Logger::fSeverityMap =
 {
-    { "nolog",   Severity::nolog   },
-    { "NOLOG",   Severity::nolog   },
-    { "error",   Severity::error   },
-    { "ERROR",   Severity::error   },
-    { "warn",    Severity::warn    },
-    { "WARN",    Severity::warn    },
-    { "warning", Severity::warn    },
-    { "WARNING", Severity::warn    },
-    { "state",   Severity::state   },
-    { "STATE",   Severity::state   },
-    { "info",    Severity::info    },
-    { "INFO",    Severity::info    },
-    { "debug",   Severity::debug   },
-    { "DEBUG",   Severity::debug   },
-    { "debug1",  Severity::debug1  },
-    { "DEBUG1",  Severity::debug1  },
-    { "debug2",  Severity::debug2  },
-    { "DEBUG2",  Severity::debug2  },
-    { "debug3",  Severity::debug3  },
-    { "DEBUG3",  Severity::debug3  },
-    { "debug4",  Severity::debug4  },
-    { "DEBUG4",  Severity::debug4  },
-    { "trace",   Severity::trace   },
-    { "TRACE",   Severity::trace   }
+    { "nolog",     Severity::nolog     },
+    { "NOLOG",     Severity::nolog     },
+    { "fatal",     Severity::fatal     },
+    { "FATAL",     Severity::fatal     },
+    { "error",     Severity::error     },
+    { "ERROR",     Severity::error     },
+    { "alarm",     Severity::alarm     },
+    { "important", Severity::important },
+    { "warn",      Severity::warn      },
+    { "WARN",      Severity::warn      },
+    { "warning",   Severity::warn      },
+    { "WARNING",   Severity::warn      },
+    { "state",     Severity::state     },
+    { "STATE",     Severity::state     },
+    { "info",      Severity::info      },
+    { "INFO",      Severity::info      },
+    { "detail",    Severity::detail    },
+    { "debug",     Severity::debug     },
+    { "DEBUG",     Severity::debug     },
+    { "debug1",    Severity::debug1    },
+    { "DEBUG1",    Severity::debug1    },
+    { "debug2",    Severity::debug2    },
+    { "DEBUG2",    Severity::debug2    },
+    { "debug3",    Severity::debug3    },
+    { "DEBUG3",    Severity::debug3    },
+    { "debug4",    Severity::debug4    },
+    { "DEBUG4",    Severity::debug4    },
+    { "trace",     Severity::trace     },
+    { "TRACE",     Severity::trace     }
 };

-const array<string, 12> Logger::fSeverityNames =
+const array<string, 15> Logger::fSeverityNames =
 {
    {
        "NOLOG",
@@ -118,9 +105,12 @@ const array<string, 12> Logger::fSeverityNames =
        "DEBUG2",
        "DEBUG1",
        "DEBUG",
+        "DETAIL",
        "INFO",
        "STATE",
        "WARN",
+        "IMPORTANT",
+        "ALARM",
        "ERROR",
        "FATAL"
    }
@@ -175,27 +165,27 @@ Logger::Logger(Severity severity, Verbosity verbosity, const string& file, const
            for (const auto info : spec.fInfos) {
                switch (info) {
                    case VSpec::Info::process_name:
-                        fmt::format_to(fBWPrefix, "[{}]", fInfos.process_name);
+                        fmt::format_to(std::back_inserter(fBWPrefix), "[{}]", fInfos.process_name);
                        break;
                    case VSpec::Info::timestamp_us:
                        FillTimeInfos();
-                        fmt::format_to(fBWPrefix, "[{:%H:%M:%S}.{:06}]", fmt::localtime(fInfos.timestamp), fInfos.us.count());
+                        fmt::format_to(std::back_inserter(fBWPrefix), "[{:%H:%M:%S}.{:06}]", fmt::localtime(fInfos.timestamp), fInfos.us.count());
                        break;
                    case VSpec::Info::timestamp_s:
                        FillTimeInfos();
-                        fmt::format_to(fBWPrefix, "[{:%H:%M:%S}]", fmt::localtime(fInfos.timestamp));
+                        fmt::format_to(std::back_inserter(fBWPrefix), "[{:%H:%M:%S}]", fmt::localtime(fInfos.timestamp));
                        break;
                    case VSpec::Info::severity:
-                        fmt::format_to(fBWPrefix, "[{}]", fInfos.severity_name);
+                        fmt::format_to(std::back_inserter(fBWPrefix), "[{}]", fInfos.severity_name);
                        break;
                    case VSpec::Info::file_line_function:
-                        fmt::format_to(fBWPrefix, "[{}:{}:{}]", fInfos.file, fInfos.line, fInfos.func);
+                        fmt::format_to(std::back_inserter(fBWPrefix), "[{}:{}:{}]", fInfos.file, fInfos.line, fInfos.func);
                        break;
                    case VSpec::Info::file_line:
-                        fmt::format_to(fBWPrefix, "[{}:{}]", fInfos.file, fInfos.line);
+                        fmt::format_to(std::back_inserter(fBWPrefix), "[{}:{}]", fInfos.file, fInfos.line);
                        break;
                    case VSpec::Info::file:
-                        fmt::format_to(fBWPrefix, "[{}]", fInfos.file);
+                        fmt::format_to(std::back_inserter(fBWPrefix), "[{}]", fInfos.file);
                        break;
                    default:
                        break;
@@ -203,7 +193,7 @@ Logger::Logger(Severity severity, Verbosity verbosity, const string& file, const
            }

            if (spec.fSize > 0) {
-                fmt::format_to(fBWPrefix, " ");
+                fmt::format_to(std::back_inserter(fBWPrefix), " ");
            }
        }

@@ -211,27 +201,27 @@ Logger::Logger(Severity severity, Verbosity verbosity, const string& file, const
            for (const auto info : spec.fInfos) {
                switch (info) {
                    case VSpec::Info::process_name:
-                        fmt::format_to(fColorPrefix, "[{}]", ColorOut(Color::fgBlue, fInfos.process_name));
+                        fmt::format_to(std::back_inserter(fColorPrefix), "[{}]", ColorOut(Color::fgBlue, fInfos.process_name));
                        break;
                    case VSpec::Info::timestamp_us:
                        FillTimeInfos();
-                        fmt::format_to(fColorPrefix, "[{}{:%H:%M:%S}.{:06}{}]", startColor(Color::fgCyan), fmt::localtime(fInfos.timestamp), fInfos.us.count(), endColor());
+                        fmt::format_to(std::back_inserter(fColorPrefix), "[{}{:%H:%M:%S}.{:06}{}]", startColor(Color::fgCyan), fmt::localtime(fInfos.timestamp), fInfos.us.count(), endColor());
                        break;
                    case VSpec::Info::timestamp_s:
                        FillTimeInfos();
-                        fmt::format_to(fColorPrefix, "[{}{:%H:%M:%S}{}]", startColor(Color::fgCyan), fmt::localtime(fInfos.timestamp), endColor());
+                        fmt::format_to(std::back_inserter(fColorPrefix), "[{}{:%H:%M:%S}{}]", startColor(Color::fgCyan), fmt::localtime(fInfos.timestamp), endColor());
                        break;
                    case VSpec::Info::severity:
-                        fmt::format_to(fColorPrefix, "[{}]", GetColoredSeverityString(fInfos.severity));
+                        fmt::format_to(std::back_inserter(fColorPrefix), "[{}]", GetColoredSeverityString(fInfos.severity));
                        break;
                    case VSpec::Info::file_line_function:
-                        fmt::format_to(fColorPrefix, "[{}:{}:{}]", ColorOut(Color::fgBlue, fInfos.file), ColorOut(Color::fgYellow, fInfos.line), ColorOut(Color::fgBlue, fInfos.func));
+                        fmt::format_to(std::back_inserter(fColorPrefix), "[{}:{}:{}]", ColorOut(Color::fgBlue, fInfos.file), ColorOut(Color::fgYellow, fInfos.line), ColorOut(Color::fgBlue, fInfos.func));
                        break;
                    case VSpec::Info::file_line:
-                        fmt::format_to(fColorPrefix, "[{}:{}]", ColorOut(Color::fgBlue, fInfos.file), ColorOut(Color::fgYellow, fInfos.line));
+                        fmt::format_to(std::back_inserter(fColorPrefix), "[{}:{}]", ColorOut(Color::fgBlue, fInfos.file), ColorOut(Color::fgYellow, fInfos.line));
                        break;
                    case VSpec::Info::file:
-                        fmt::format_to(fColorPrefix, "[{}]", ColorOut(Color::fgBlue, fInfos.file));
+                        fmt::format_to(std::back_inserter(fColorPrefix), "[{}]", ColorOut(Color::fgBlue, fInfos.file));
                        break;
                    default:
                        break;
@@ -239,7 +229,7 @@ Logger::Logger(Severity severity, Verbosity verbosity, const string& file, const
            }

            if (spec.fSize > 0) {
-                fmt::format_to(fColorPrefix, " ");
+                fmt::format_to(std::back_inserter(fColorPrefix), " ");
            }
        }

@@ -294,8 +284,34 @@ void Logger::LogEmptyLine()
    // this call just to prevent any output to be added to the logger object
 }

+string Logger::GetColoredSeverityString(Severity severity)
+{
+    switch (severity) {
+        case Severity::nolog:     return "\033[01;39mNOLOG\033[0m";     break;
+        case Severity::fatal:     return "\033[01;31mFATAL\033[0m";     break;
+        case Severity::error:     return "\033[01;31mERROR\033[0m";     break;
+        case Severity::alarm:     return "\033[01;33mALARM\033[0m";     break;
+        case Severity::important: return "\033[01;32mIMPORTANT\033[0m"; break;
+        case Severity::warn:      return "\033[01;33mWARN\033[0m";      break;
+        case Severity::state:     return "\033[01;35mSTATE\033[0m";     break;
+        case Severity::info:      return "\033[01;32mINFO\033[0m";      break;
+        case Severity::detail:    return "\033[01;32mDETAIL\033[0m";    break;
+        case Severity::debug:     return "\033[01;34mDEBUG\033[0m";     break;
+        case Severity::debug1:    return "\033[01;34mDEBUG1\033[0m";    break;
+        case Severity::debug2:    return "\033[01;34mDEBUG2\033[0m";    break;
+        case Severity::debug3:    return "\033[01;34mDEBUG3\033[0m";    break;
+        case Severity::debug4:    return "\033[01;34mDEBUG4\033[0m";    break;
+        case Severity::trace:     return "\033[01;36mTRACE\033[0m";     break;
+        default:                  return "UNKNOWN";                     break;
+    }
+}
+
 void Logger::SetConsoleSeverity(const Severity severity)
 {
+    if (severity < Severity::FAIR_MIN_SEVERITY && severity != Severity::nolog) {
+        cout << "Requested severity is higher than the enabled compile-time FAIR_MIN_SEVERITY (" << Severity::FAIR_MIN_SEVERITY << "), ignoring" << endl;
+        return;
+    }
    fConsoleSeverity = severity;
    UpdateMinSeverity();
 }
@@ -317,6 +333,10 @@ Severity Logger::GetConsoleSeverity()

 void Logger::SetFileSeverity(const Severity severity)
 {
+    if (severity < Severity::FAIR_MIN_SEVERITY && severity != Severity::nolog) {
+        cout << "Requested severity is higher than the enabled compile-time FAIR_MIN_SEVERITY (" << Severity::FAIR_MIN_SEVERITY << "), ignoring" << endl;
+        return;
+    }
    fFileSeverity = severity;
    UpdateMinSeverity();
 }
@@ -333,8 +353,17 @@ void Logger::SetFileSeverity(const string& severityStr)

 void Logger::SetCustomSeverity(const string& key, const Severity severity)
 {
-    fCustomSinks.at(key).first = severity; // TODO: range checks
-    UpdateMinSeverity();
+    try {
+        if (severity < Severity::FAIR_MIN_SEVERITY && severity != Severity::nolog) {
+            cout << "Requested severity is higher than the enabled compile-time FAIR_MIN_SEVERITY (" << Severity::FAIR_MIN_SEVERITY << "), ignoring" << endl;
+            return;
+        }
+        fCustomSinks.at(key).first = severity;
+        UpdateMinSeverity();
+    } catch (const out_of_range& oor) {
+        LOG(error) << "No custom sink with id '" << key << "' found";
+        throw;
+    }
 }

 void Logger::SetCustomSeverity(const string& key, const string& severityStr)
@@ -347,11 +376,21 @@ void Logger::SetCustomSeverity(const string& key, const string& severityStr)
    }
 }

+Severity Logger::GetCustomSeverity(const std::string& key)
+{
+    try {
+        return fCustomSinks.at(key).first;
+    } catch (const out_of_range& oor) {
+        LOG(error) << "No custom sink with id '" << key << "' found";
+        throw;
+    }
+}
+
 void Logger::CycleConsoleSeverityUp()
 {
    int current = static_cast<int>(fConsoleSeverity);
    if (current == static_cast<int>(fSeverityNames.size()) - 1) {
-        SetConsoleSeverity(static_cast<Severity>(0));
+        SetConsoleSeverity(Severity::FAIR_MIN_SEVERITY);
    } else {
        SetConsoleSeverity(static_cast<Severity>(current + 1));
    }
@@ -359,7 +398,7 @@ void Logger::CycleConsoleSeverityUp()
    stringstream ss;

    for (int i = 0; i < static_cast<int>(fSeverityNames.size()); ++i) {
-        ss << (i == newCurrent ? ">" : " ") << fSeverityNames.at(i) << (i == newCurrent ? "<" : " ");
+        ss << (i == newCurrent ? "<" : " ") << fSeverityNames.at(i) << (i == newCurrent ? ">" : " ");
    }

    ss << "\n\n";
@@ -369,7 +408,7 @@ void Logger::CycleConsoleSeverityUp()
 void Logger::CycleConsoleSeverityDown()
 {
    int current = static_cast<int>(fConsoleSeverity);
-    if (current == 0) {
+    if (current == static_cast<int>(Severity::FAIR_MIN_SEVERITY)) {
        SetConsoleSeverity(static_cast<Severity>(fSeverityNames.size() - 1));
    } else {
        SetConsoleSeverity(static_cast<Severity>(current - 1));
@@ -378,7 +417,7 @@ void Logger::CycleConsoleSeverityDown()
    stringstream ss;

    for (int i = 0; i < static_cast<int>(fSeverityNames.size()); ++i) {
-        ss << (i == newCurrent ? ">" : " ") << fSeverityNames.at(i) << (i == newCurrent ? "<" : " ");
+        ss << (i == newCurrent ? "<" : " ") << fSeverityNames.at(i) << (i == newCurrent ? ">" : " ");
    }

    ss << "\n\n";
@@ -397,7 +436,7 @@ void Logger::CycleVerbosityUp()
    stringstream ss;

    for (int i = 0; i < static_cast<int>(fVerbosityNames.size()); ++i) {
-        ss << (i == newCurrent ? ">" : " ") << fVerbosityNames.at(i) << (i == newCurrent ? "<" : " ");
+        ss << (i == newCurrent ? "<" : " ") << fVerbosityNames.at(i) << (i == newCurrent ? ">" : " ");
    }

    ss << "\n\n";
@@ -416,7 +455,7 @@ void Logger::CycleVerbosityDown()
    stringstream ss;

    for (int i = 0; i < static_cast<int>(fVerbosityNames.size()); ++i) {
-        ss << (i == newCurrent ? ">" : " ") << fVerbosityNames.at(i) << (i == newCurrent ? "<" : " ");
+        ss << (i == newCurrent ? "<" : " ") << fVerbosityNames.at(i) << (i == newCurrent ? ">" : " ");
    }

    ss << "\n\n";
@@ -428,7 +467,7 @@ void Logger::UpdateMinSeverity()
    if (fFileSeverity == Severity::nolog) {
        fMinSeverity = fConsoleSeverity;
    } else {
-        fMinSeverity = std::min(fConsoleSeverity, fFileSeverity);
+        fMinSeverity = std::max(fConsoleSeverity, fFileSeverity);
    }

    for (auto& it : fCustomSinks) {
@@ -440,13 +479,6 @@ void Logger::UpdateMinSeverity()
    }
 }

-bool Logger::Logging(Severity severity)
-{
-    return (severity >= fMinSeverity &&
-            fMinSeverity > Severity::nolog) ||
-            severity == Severity::fatal;
-}
-
 bool Logger::Logging(const string& severityStr)
 {
    if (fSeverityMap.count(severityStr)) {
@@ -496,7 +528,7 @@ void Logger::SetConsoleColor(const bool colored)
    fColored = colored;
 }

-void Logger::InitFileSink(const Severity severity, const string& filename, bool customizeName)
+string Logger::InitFileSink(const Severity severity, const string& filename, bool customizeName)
 {
    lock_guard<mutex> lock(fMtx);
    if (fFileStream.is_open()) {
@@ -521,21 +553,27 @@ void Logger::InitFileSink(const Severity severity, const string& filename, bool
    fFileStream.open(fullName, fstream::out | fstream::app);

    if (fFileStream.is_open()) {
-        fFileSeverity = severity;
+        if (severity < Severity::FAIR_MIN_SEVERITY && severity != Severity::nolog) {
+            cout << "Requested file sink severity is higher than the enabled compile-time FAIR_MIN_SEVERITY (" << Severity::FAIR_MIN_SEVERITY << "), setting to " << Severity::FAIR_MIN_SEVERITY << endl;
+            fFileSeverity = Severity::FAIR_MIN_SEVERITY;
+        } else {
+            fFileSeverity = severity;
+        }
        UpdateMinSeverity();
    } else {
        cout << "Error opening file: " << fullName;
    }

+    return fullName;
 }

-void Logger::InitFileSink(const string& severityStr, const string& filename, bool customizeName)
+string Logger::InitFileSink(const string& severityStr, const string& filename, bool customizeName)
 {
    if (fSeverityMap.count(severityStr)) {
-        InitFileSink(fSeverityMap.at(severityStr), filename, customizeName);
+        return InitFileSink(fSeverityMap.at(severityStr), filename, customizeName);
    } else {
        LOG(error) << "Unknown severity setting: '" << severityStr << "', setting to default 'info'.";
-        InitFileSink(Severity::info, filename);
+        return InitFileSink(Severity::info, filename);
    }
 }

@@ -544,6 +582,8 @@ void Logger::RemoveFileSink()
    lock_guard<mutex> lock(fMtx);
    if (fFileStream.is_open()) {
        fFileStream.close();
+        fFileSeverity = Severity::nolog;
+        UpdateMinSeverity();
    }
 }

@@ -577,10 +617,16 @@ void Logger::AddCustomSink(const string& key, Severity severity, function<void(c
 {
    lock_guard<mutex> lock(fMtx);
    if (fCustomSinks.count(key) == 0) {
-        fCustomSinks.insert(make_pair(key, make_pair(severity, func)));
+        if (severity < Severity::FAIR_MIN_SEVERITY && severity != Severity::nolog) {
+            cout << "Requested custom sink severity is higher than the enabled compile-time FAIR_MIN_SEVERITY (" << Severity::FAIR_MIN_SEVERITY << "), setting to " << Severity::FAIR_MIN_SEVERITY << endl;
+            fCustomSinks.insert(make_pair(key, make_pair(Severity::FAIR_MIN_SEVERITY, func)));
+        } else {
+            fCustomSinks.insert(make_pair(key, make_pair(severity, func)));
+        }
        UpdateMinSeverity();
    } else {
        cout << "Logger::AddCustomSink: sink '" << key << "' already exists, will not add again. Remove first with Logger::RemoveCustomSink(const string& key)" << endl;
+        throw runtime_error("Adding a sink with a key that already exists. Remove first.");
    }
 }

@@ -601,6 +647,7 @@ void Logger::RemoveCustomSink(const string& key)
        UpdateMinSeverity();
    } else {
        cout << "Logger::RemoveCustomSink: sink '" << key << "' doesn't exists, will not remove." << endl;
+        throw runtime_error("Trying to remove a sink with a key that does not exist.");
    }
 }

--- a/logger/Logger.h
+++ b/logger/Logger.h
@@ -13,8 +13,8 @@
 #warning "The symbol 'DEBUG' is used in FairRoot Logger. undefining..."
 #endif

-#if !defined(FAIR_MIN_SEVERITY) && defined(NDEBUG)
-#define FAIR_MIN_SEVERITY info
+#ifndef FAIR_MIN_SEVERITY
+#define FAIR_MIN_SEVERITY nolog
 #endif

 #ifdef FAIRLOGGER_USE_BOOST_PRETTY_FUNCTION
@@ -26,6 +26,7 @@

 #include <fmt/core.h>
 #include <fmt/printf.h>
+#include <fmt/ostream.h>

 #pragma GCC diagnostic pop

@@ -39,9 +40,10 @@
 #include <mutex>
 #include <ostream>
 #include <sstream>
+#include <stdexcept>
 #include <string>
 #include <time.h> // time_t
-#include <type_traits>
+#include <type_traits> // is_same
 #include <unordered_map>
 #include <utility> // pair

@@ -57,52 +59,56 @@ enum class Severity : int
    debug2 = 4,
    debug1 = 5,
    debug = 6,
-    info = 7,
-    state = 8,
-    warn = 9,
-    error = 10,
-    fatal = 11,
-    // backwards-compatibility:
-    NOLOG = nolog,
-    TRACE = trace,
-    DEBUG4 = debug4,
-    DEBUG3 = debug3,
-    DEBUG2 = debug2,
-    DEBUG1 = debug1,
-    DEBUG = debug,
-    INFO = info,
-    STATE = state,
-    WARNING = warn,
+    detail = 7,
+    info = 8,
+    state = 9,
+    warn = 10,
+    important = 11,
+    alarm = 12,
+    error = 13,
+    fatal = 14,
+    // aliases
    warning = warn,
-    WARN = warn,
-    ERROR = error,
-    FATAL = fatal
+    // backwards-compatibility
+    NOLOG   __attribute__((deprecated("Use LOG(nolog) instead (lowercase severity name)."))) = nolog,
+    FATAL   __attribute__((deprecated("Use LOG(fatal) instead (lowercase severity name)."))) = fatal,
+    ERROR   __attribute__((deprecated("Use LOG(error) instead (lowercase severity name)."))) = error,
+    WARN    __attribute__((deprecated("Use LOG(warn) instead (lowercase severity name)."))) = warn,
+    WARNING __attribute__((deprecated("Use LOG(warning) instead (lowercase severity name)."))) = warn,
+    STATE   __attribute__((deprecated("Use LOG(state) instead (lowercase severity name)."))) = state,
+    INFO    __attribute__((deprecated("Use LOG(info) instead (lowercase severity name)."))) = info,
+    DEBUG   __attribute__((deprecated("Use LOG(debug) instead (lowercase severity name)."))) = debug,
+    DEBUG1  __attribute__((deprecated("Use LOG(debug1) instead (lowercase severity name)."))) = debug1,
+    DEBUG2  __attribute__((deprecated("Use LOG(debug2) instead (lowercase severity name)."))) = debug2,
+    DEBUG3  __attribute__((deprecated("Use LOG(debug3) instead (lowercase severity name)."))) = debug3,
+    DEBUG4  __attribute__((deprecated("Use LOG(debug4) instead (lowercase severity name)."))) = debug4,
+    TRACE   __attribute__((deprecated("Use LOG(trace) instead (lowercase severity name)."))) = trace
 };

 // verbosity levels:
 // verylow:  message
 // low:      [severity] message
 // medium:   [HH:MM:SS][severity] message
-// high:     [process name][HH:MM:SS][severity] message
-// veryhigh: [process name][HH:MM:SS:µS][severity][file:line:function] message
+// high:     [process_name][HH:MM:SS][severity] message
+// veryhigh: [process_name][HH:MM:SS:µS][severity][file:line:function] message
 enum class Verbosity : int
 {
-    verylow,
+    verylow = 0,
    low,
    medium,
    high,
    veryhigh,
-    // backwards-compatibility:
-    VERYLOW = verylow,
-    LOW = low,
-    MEDIUM = medium,
-    HIGH = high,
-    VERYHIGH = veryhigh,
    // extra slots for user-defined verbosities:
    user1,
    user2,
    user3,
    user4,
+    // backwards-compatibility:
+    VERYLOW = verylow,
+    LOW = low,
+    MEDIUM = medium,
+    HIGH = high,
+    VERYHIGH = veryhigh
 };

 struct VerbositySpec
@@ -110,7 +116,7 @@ struct VerbositySpec
    enum class Info : int
    {
        __empty__ = 0,         // used to initialize order array
-        process_name,          // [process name]
+        process_name,          // [process_name]
        timestamp_s,           // [HH:MM:SS]
        timestamp_us,          // [HH:MM:SS:µS]
        severity,              // [severity]
@@ -239,6 +245,7 @@ class Logger
    static std::string startColor(Color color) { return fmt::format("\033[01;{}m", static_cast<int>(color)); }
    static std::string endColor() { return "\033[0m"; }
    static std::string ColorOut(Color c, const std::string& s) { return fmt::format("\033[01;{}m{}\033[0m", static_cast<int>(c), s); }
+    static std::string GetColoredSeverityString(Severity severity);

    static void SetConsoleSeverity(const Severity severity);
    static void SetConsoleSeverity(const std::string& severityStr);
@@ -246,16 +253,23 @@ class Logger

    static void SetFileSeverity(const Severity severity);
    static void SetFileSeverity(const std::string& severityStr);
+    static Severity GetFileSeverity() { return fFileSeverity; }

    static void SetCustomSeverity(const std::string& key, const Severity severity);
    static void SetCustomSeverity(const std::string& key, const std::string& severityStr);
+    static Severity GetCustomSeverity(const std::string& key);

    static void CycleConsoleSeverityUp();
    static void CycleConsoleSeverityDown();
    static void CycleVerbosityUp();
    static void CycleVerbosityDown();

-    static bool Logging(const Severity severity);
+    static bool Logging(const Severity severity)
+    {
+        return (severity >= fMinSeverity &&
+                fMinSeverity > Severity::nolog) ||
+                severity == Severity::fatal;
+    }
    static bool Logging(const std::string& severityStr);

    static void SetVerbosity(const Verbosity verbosity);
@@ -266,8 +280,8 @@ class Logger

    static void SetConsoleColor(const bool colored = true);

-    static void InitFileSink(const Severity severity, const std::string& filename, bool customizeName = true);
-    static void InitFileSink(const std::string& severityStr, const std::string& filename, bool customizeName = true);
+    static std::string InitFileSink(const Severity severity, const std::string& filename, bool customizeName = true);
+    static std::string InitFileSink(const std::string& severityStr, const std::string& filename, bool customizeName = true);

    static void RemoveFileSink();

@@ -310,7 +324,7 @@ class Logger

    static const std::unordered_map<std::string, Verbosity> fVerbosityMap;
    static const std::unordered_map<std::string, Severity> fSeverityMap;
-    static const std::array<std::string, 12> fSeverityNames;
+    static const std::array<std::string, 15> fSeverityNames;
    static const std::array<std::string, 9> fVerbosityNames;

    // protection for use after static destruction took place
@@ -319,11 +333,7 @@ class Logger

    static bool constexpr SuppressSeverity(Severity sev)
    {
-#ifdef FAIR_MIN_SEVERITY
        return sev < Severity::FAIR_MIN_SEVERITY;
-#else
-        return false;
-#endif
    }

  private:
@@ -358,6 +368,9 @@ class Logger
    static std::map<Verbosity, VerbositySpec> fVerbosities;
 };

+inline std::ostream& operator<<(std::ostream& os, const Severity& s) { return os << Logger::SeverityName(s); }
+inline std::ostream& operator<<(std::ostream& os, const Verbosity& v) { return os << Logger::VerbosityName(v); }
+
 } // namespace fair

 #define IMP_CONVERTTOSTRING(s) # s
@@ -407,34 +420,34 @@ class Logger

 // Log line if the provided severity is below or equals the configured one
 #define FAIR_LOG(severity) \
-    if (fair::Logger::SuppressSeverity(fair::Severity::severity)) ; else \
+    for (bool fairLOggerunLikelyvariable3 = false; !fair::Logger::SuppressSeverity(fair::Severity::severity) && !fairLOggerunLikelyvariable3; fairLOggerunLikelyvariable3 = true) \
        for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(fair::Severity::severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
            fair::Logger(fair::Severity::severity, MSG_ORIGIN)

 // Log line with the given verbosity if the provided severity is below or equals the configured one
 #define FAIR_LOGV(severity, verbosity) \
-    if (fair::Logger::SuppressSeverity(fair::Severity::severity)) ; else \
+    for (bool fairLOggerunLikelyvariable3 = false; !fair::Logger::SuppressSeverity(fair::Severity::severity) && !fairLOggerunLikelyvariable3; fairLOggerunLikelyvariable3 = true) \
        for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(fair::Severity::severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
            fair::Logger(fair::Severity::severity, fair::Verbosity::verbosity, MSG_ORIGIN)

 // Log with fmt- or printf-like formatting
-#define FAIR_LOGF(severity, ...) LOG(severity) << fmt::format(__VA_ARGS__)
-#define FAIR_LOGP(severity, ...) LOG(severity) << fmt::sprintf(__VA_ARGS__)
+#define FAIR_LOGP(severity, ...) LOG(severity) << fmt::format(__VA_ARGS__)
+#define FAIR_LOGF(severity, ...) LOG(severity) << fmt::sprintf(__VA_ARGS__)

 // Log an empty line
 #define FAIR_LOGN(severity) \
-    if (fair::Logger::SuppressSeverity(fair::Severity::severity)) ; else \
+    for (bool fairLOggerunLikelyvariable3 = false; !fair::Logger::SuppressSeverity(fair::Severity::severity) && !fairLOggerunLikelyvariable3; fairLOggerunLikelyvariable3 = true) \
        for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(fair::Severity::severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
            fair::Logger(fair::Severity::severity, fair::Verbosity::verylow, MSG_ORIGIN).LogEmptyLine()

 // Log with custom file, line, function
 #define FAIR_LOGD(severity, file, line, f) \
-    if (fair::Logger::SuppressSeverity(severity)) ; else \
+    for (bool fairLOggerunLikelyvariable3 = false; !fair::Logger::SuppressSeverity(severity) && !fairLOggerunLikelyvariable3; fairLOggerunLikelyvariable3 = true) \
        for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
            fair::Logger(severity, file, line, f)

 #define FAIR_LOG_IF(severity, condition) \
-    if (fair::Logger::SuppressSeverity(fair::Severity::severity)) ; else \
+    for (bool fairLOggerunLikelyvariable4 = false; !fair::Logger::SuppressSeverity(fair::Severity::severity) && !fairLOggerunLikelyvariable4; fairLOggerunLikelyvariable4 = true) \
        for (bool fairLOggerunLikelyvariable2 = false; condition && !fairLOggerunLikelyvariable2; fairLOggerunLikelyvariable2 = true) \
            LOG(severity)

--- a/test/Common.h
+++ b/test/Common.h
@@ -0,0 +1,100 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#ifndef FAIR_LOGGER_TEST_COMMON_H
+#define FAIR_LOGGER_TEST_COMMON_H
+
+#include <fstream>
+#include <functional>
+#include <iostream>
+#include <regex>
+#include <stdexcept>
+#include <sstream>
+#include <string>
+
+#include <stdio.h> // fflush
+#include <unistd.h> // dup, dup2, close
+
+namespace fair
+{
+namespace logger
+{
+namespace test
+{
+
+template<typename ... T>
+auto ToStr(T&&... t) -> std::string
+{
+    std::stringstream ss;
+    (void)std::initializer_list<int>{(ss << t, 0)...};
+    return ss.str();
+}
+
+template<int S>
+class StreamCapturer
+{
+  public:
+    explicit StreamCapturer()
+        : mFd(S)
+        , mOriginalFd(dup(S)) // create a copy of the given file descriptor
+    {
+        char name[] = "/tmp/fairlogger_test_capture.XXXXXX";
+
+        const int capturedFd = mkstemp(name); // create a unique temporary file
+        if (capturedFd == -1) {
+            std::cout << "Could not create tmp file " << name << " for test; does the test have access to the /tmp directory?" << std::endl;
+            throw std::runtime_error("Could not create tmp file for test; does the test have access to the /tmp directory?");
+        }
+        mTmpFile = name;
+
+        fflush(nullptr); // flushes all open output streams
+        dup2(capturedFd, mFd);
+        close(capturedFd);
+    }
+
+    std::string GetCapture()
+    {
+        fflush(nullptr); // flushes all open output streams
+        std::ifstream t(mTmpFile);
+        std::stringstream buffer;
+        buffer << t.rdbuf();
+        return buffer.str();
+    }
+
+    ~StreamCapturer()
+    {
+        dup2(mOriginalFd, mFd);
+        close(mOriginalFd);
+        remove(mTmpFile.c_str());
+    }
+
+  private:
+    const int mFd;
+    int mOriginalFd;
+    std::string mTmpFile;
+};
+
+void CheckOutput(std::string const& expected, std::function<void()> f)
+{
+    std::string output;
+    {
+        StreamCapturer<1> c;
+        f();
+        output = c.GetCapture();
+    }
+    const std::regex e(expected);
+    if (!std::regex_match(output, e)) {
+        throw std::runtime_error(std::string("MISMATCH:\n##### expected (regex):\n" + expected + "\n##### found:\n" + output));
+    }
+}
+
+} // namespace test
+} // namespace logger
+} // namespace fair
+
+#endif // FAIR_LOGGER_TEST_COMMON_H
--- a/test/ci/CMakeLists.txt
+++ b/test/ci/CMakeLists.txt
@@ -0,0 +1,36 @@
+################################################################################
+#   Copyright (C) 2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH     #
+#                                                                              #
+#              This software is distributed under the terms of the             #
+#              GNU Lesser General Public Licence (LGPL) version 3,             #
+#                  copied verbatim in the file "LICENSE"                       #
+################################################################################
+
+function(container)
+  cmake_parse_arguments(ARGS "" "OS;VERSION" "" ${ARGN})
+
+  set(container "${ARGS_OS}.${ARGS_VERSION}")
+  set(def "${container}.def")
+  set(log "${container}.log")
+  set(target "${container}.sif")
+
+  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/linux.def.in" ${def} @ONLY)
+
+  add_custom_command(OUTPUT ${target}
+    COMMAND ${CMAKE_COMMAND} -E env ${BASH} -c
+      "${SINGULARITY} build -f -F ${target} ${def} > ${log} 2>&1"
+    VERBATIM
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    COMMENT "Building fairlogger test container ${target}, logging to ${CMAKE_CURRENT_BINARY_DIR}/${log}"
+    DEPENDS ${PACKAGE_SETUP_SCRIPT} ${bootstrap_cmake_script}
+  )
+
+  list(APPEND containers ${target})
+  set(containers ${containers} PARENT_SCOPE)
+endfunction()
+
+container(OS fedora VERSION 32)
+container(OS fedora VERSION 33)
+container(OS fedora VERSION 34)
+
+add_custom_target(all-containers DEPENDS ${containers})
--- a/test/ci/linux.def.in
+++ b/test/ci/linux.def.in
@@ -0,0 +1,8 @@
+Bootstrap: docker
+From: @ARGS_OS@:@ARGS_VERSION@
+
+%files
+    @CMAKE_CURRENT_SOURCE_DIR@/setup-@ARGS_OS@.sh /setup.sh
+
+%post
+    bash /setup.sh @ARGS_VERSION@
--- a/test/ci/setup-fedora.sh
+++ b/test/ci/setup-fedora.sh
@@ -0,0 +1,7 @@
+#! /bin/bash
+
+dnf -y update
+dnf -y install https://alfa-ci.gsi.de/packages/rpm/fedora-$1-x86_64/fairsoft-release-dev.rpm
+dnf -y install boost-devel ninja-build 'dnf-command(builddep)' libasan liblsan libtsan libubsan clang-tools-extra
+dnf -y builddep fairlogger
+dnf -y clean all
--- a/test/ci/slurm-submit.sh
+++ b/test/ci/slurm-submit.sh
@@ -0,0 +1,35 @@
+#! /bin/bash
+
+label="$1"
+jobsh="$2"
+
+ALFACI_SLURM_CPUS=4
+if [ -z "$ALFACI_SLURM_EXTRA_OPTS" ]
+then
+	ALFACI_SLURM_EXTRA_OPTS="--hint=compute_bound"
+fi
+ALFACI_SLURM_TIMEOUT=10
+if [ -z "$ALFACI_SLURM_QUEUE" ]
+then
+	ALFACI_SLURM_QUEUE=main
+fi
+
+echo "*** Slurm request options :"
+echo "***   Working directory ..: $PWD"
+echo "***   Queue ..............: $ALFACI_SLURM_QUEUE"
+echo "***   CPUs ...............: $ALFACI_SLURM_CPUS"
+echo "***   Wall Time ..........: $ALFACI_SLURM_TIMEOUT min"
+echo "***   Job Name ...........: ${label}"
+echo "***   Extra Options ......: ${ALFACI_SLURM_EXTRA_OPTS}"
+echo "*** Submitting job at ....: $(date -R)"
+(
+	set -x
+	srun -p $ALFACI_SLURM_QUEUE -c $ALFACI_SLURM_CPUS -n 1 \
+		-t $ALFACI_SLURM_TIMEOUT \
+		--job-name="${label}" \
+		${ALFACI_SLURM_EXTRA_OPTS} \
+		bash "${jobsh}"
+)
+retval=$?
+echo "*** Exit Code ............: $retval"
+exit "$retval"
--- a/test/cycle.cxx
+++ b/test/cycle.cxx
@@ -0,0 +1,81 @@
+/********************************************************************************
+ * Copyright (C) 2015-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file LICENSE"                       *
+ ********************************************************************************/
+
+#include "Common.h"
+#include <Logger.h>
+
+#include <iostream>
+
+using namespace std;
+using namespace fair;
+using namespace fair::logger::test;
+
+int main()
+{
+    try {
+        Logger::SetConsoleColor(false);
+        Logger::SetVerbosity(Verbosity::user4);
+
+        cout << "initial verbosity >" << Logger::GetVerbosity() << "<" << endl << endl;
+
+        array<Verbosity, 10> verbositiesUp{{ Verbosity::verylow, Verbosity::low, Verbosity::medium, Verbosity::high, Verbosity::veryhigh, Verbosity::user1, Verbosity::user2, Verbosity::user3, Verbosity::user4, Verbosity::verylow }};
+        for (unsigned int i = 0; i < verbositiesUp.size(); ++i) {
+            Logger::CycleVerbosityUp();
+            if (Logger::GetVerbosity() != verbositiesUp.at(i)) { throw runtime_error(ToStr("Expected verbosity to be ", verbositiesUp.at(i), ", but it is ", Logger::GetVerbosity())); }
+        }
+
+        array<Verbosity, 10> verbositiesDown{{ Verbosity::user4, Verbosity::user3, Verbosity::user2, Verbosity::user1, Verbosity::veryhigh, Verbosity::high, Verbosity::medium, Verbosity::low, Verbosity::verylow, Verbosity::user4 }};
+        for (unsigned int i = 0; i < verbositiesDown.size(); ++i) {
+            Logger::CycleVerbosityDown();
+            if (Logger::GetVerbosity() != verbositiesDown.at(i)) { throw runtime_error(ToStr("Expected verbosity to be ", verbositiesDown.at(i), ", but it is ", Logger::GetVerbosity())); }
+        }
+
+        Logger::SetConsoleSeverity(Severity::fatal);
+        cout << "initial severity >" << Logger::GetConsoleSeverity() << "<" << endl << endl;
+
+        array<Severity, 15> severitiesUp{{ Severity::nolog, Severity::trace, Severity::debug4, Severity::debug3, Severity::debug2, Severity::debug1, Severity::debug, Severity::detail, Severity::info, Severity::state, Severity::warn, Severity::important, Severity::alarm, Severity::error, Severity::fatal }};
+#ifdef FAIR_MIN_SEVERITY
+        for (unsigned int i = static_cast<int>(Severity::FAIR_MIN_SEVERITY); i < severitiesUp.size(); ++i) {
+#else
+        for (unsigned int i = 0; i < severitiesUp.size(); ++i) {
+#endif
+            Logger::CycleConsoleSeverityUp();
+            if (Logger::GetConsoleSeverity() != severitiesUp.at(i)) { throw runtime_error(ToStr("Expected severity to be ", severitiesUp.at(i), ", but it is ", Logger::GetConsoleSeverity())); }
+        }
+        Logger::CycleConsoleSeverityUp();
+#ifdef FAIR_MIN_SEVERITY
+        if (Logger::GetConsoleSeverity() != Severity::FAIR_MIN_SEVERITY) { throw runtime_error(ToStr("Expected severity to be ", Severity::nolog, ", but it is ", Logger::GetConsoleSeverity())); }
+#else
+        if (Logger::GetConsoleSeverity() != Severity::nolog) { throw runtime_error(ToStr("Expected severity to be ", Severity::nolog, ", but it is ", Logger::GetConsoleSeverity())); }
+#endif
+
+        Logger::SetConsoleSeverity(Severity::fatal);
+        cout << "initial severity >" << Logger::GetConsoleSeverity() << "<" << endl << endl;
+
+        array<Severity, 15> severitiesDown{{ Severity::error, Severity::alarm, Severity::important, Severity::warn, Severity::state, Severity::info, Severity::detail, Severity::debug, Severity::debug1, Severity::debug2, Severity::debug3, Severity::debug4, Severity::trace, Severity::nolog, Severity::fatal }};
+#ifdef FAIR_MIN_SEVERITY
+        for (unsigned int i = 0; i < severitiesDown.size() - static_cast<int>(Severity::FAIR_MIN_SEVERITY) - 1; ++i) {
+#else
+        for (unsigned int i = 0; i < severitiesDown.size(); ++i) {
+#endif
+            Logger::CycleConsoleSeverityDown();
+            if (Logger::GetConsoleSeverity() != severitiesDown.at(i)) { throw runtime_error(ToStr("Expected severity to be ", severitiesDown.at(i), ", but it is ", Logger::GetConsoleSeverity())); }
+        }
+        Logger::CycleConsoleSeverityDown();
+#ifdef FAIR_MIN_SEVERITY
+        if (Logger::GetConsoleSeverity() != Severity::fatal) { throw runtime_error(ToStr("Expected severity to be ", Severity::fatal, ", but it is ", Logger::GetConsoleSeverity())); }
+#else
+        if (Logger::GetConsoleSeverity() != Severity::error) { throw runtime_error(ToStr("Expected severity to be ", Severity::error, ", but it is ", Logger::GetConsoleSeverity())); }
+#endif
+    } catch (runtime_error& rte) {
+        cout << rte.what() << endl;
+        return 1;
+    }
+
+    return 0;
+}
--- a/test/logger.cxx
+++ b/test/logger.cxx
@@ -0,0 +1,61 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include <Logger.h>
+
+#include <iostream>
+
+using namespace std;
+using namespace fair;
+
+void printEverySeverity()
+{
+    static int i = 1;
+
+    LOG(nolog)     << "nolog message, counter: "     << i++;
+    LOG(trace)     << "trace message, counter: "     << i++;
+    LOG(debug4)    << "debug4 message, counter: "    << i++;
+    LOG(debug3)    << "debug3 message, counter: "    << i++;
+    LOG(debug2)    << "debug2 message, counter: "    << i++;
+    LOG(debug1)    << "debug1 message, counter: "    << i++;
+    LOG(debug)     << "debug message, counter: "     << i++;
+    LOG(detail)    << "detail message, counter: "    << i++;
+    LOG(info)      << "info message, counter: "      << i++;
+    LOG(state)     << "state message, counter: "     << i++;
+    LOG(warn)      << "warning message, counter: "   << i++;
+    LOG(important) << "important message, counter: " << i++;
+    LOG(alarm)     << "alarm message, counter: "     << i++;
+    LOG(error)     << "error message, counter: "     << i++;
+    LOG(fatal)     << "fatal message, counter: "     << i++;
+}
+
+void printAllVerbositiesWithSeverity(Severity sev)
+{
+    Logger::SetConsoleSeverity(sev);
+
+    for (uint32_t i = 0; i < Logger::fVerbosityNames.size(); ++i) {
+        cout << "##### testing severity '" << sev << "' with verbosity '" << Logger::fVerbosityNames.at(i) << "'" << endl;
+        Logger::SetVerbosity(static_cast<Verbosity>(i));
+        printEverySeverity();
+    }
+}
+
+int main()
+{
+    Logger::SetConsoleColor(true);
+    Logger::SetVerbosity(Verbosity::veryhigh);
+    cout << "##### GetConsoleSeverity = " << Logger::SeverityName(Logger::GetConsoleSeverity()) << endl;
+
+    cout << "##### testing severities..." << endl;
+
+    for (uint32_t i = 0; i < Logger::fSeverityNames.size(); ++i) {
+        printAllVerbositiesWithSeverity(static_cast<Severity>(i));
+    }
+
+    return 0;
+}
--- a/test/loggerTest.cxx
+++ b/test/loggerTest.cxx
@@ -1,208 +0,0 @@
-/********************************************************************************
- * Copyright (C) 2014-2019 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
- *                                                                              *
- *              This software is distributed under the terms of the             *
- *              GNU Lesser General Public Licence (LGPL) version 3,             *
- *                  copied verbatim in the file "LICENSE"                       *
- ********************************************************************************/
-#include <Logger.h>
-
-#include <iostream>
-#include <vector>
-#include <thread>
-
-using namespace std;
-using namespace fair;
-
-void printEverySeverity()
-{
-    static int i = 1;
-
-    LOG(nolog) << "nolog message "   << i++;
-    LOG(error) << "error message "   << i++;
-    LOG(warn)  << "warning message " << i++;
-    LOG(state) << "state message "   << i++;
-    LOG(info)  << "info message "    << i++;
-    LOG(debug) << "debug message "   << i++;
-    LOG(debug1) << "debug1 message "   << i++;
-    LOG(debug2) << "debug2 message "   << i++;
-    LOG(debug3) << "debug3 message "   << i++;
-    LOG(debug4) << "debug4 message "   << i++;
-    LOG(trace) << "trace message "   << i++;
-}
-
-void printAllVerbositiesWithSeverity(Severity sev)
-{
-    Logger::SetConsoleSeverity(sev);
-
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'verylow' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::verylow);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'low' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::low);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'medium' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::medium);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'high' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::high);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'veryhigh' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::veryhigh);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'user1' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::user1);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'user2' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::user2);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'user3' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::user3);
-    printEverySeverity();
-    cout << endl << "cout: >>> testing severity '" << Logger::SeverityName(sev) << "' with 'user4' verbosity..." << endl;
-    Logger::SetVerbosity(Verbosity::user4);
-    printEverySeverity();
-}
-
-void silentlyPrintAllVerbositiesWithSeverity(Severity sev)
-{
-    Logger::SetConsoleSeverity(sev);
-
-    Logger::SetVerbosity(Verbosity::verylow);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::low);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::medium);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::high);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::veryhigh);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::user1);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::user2);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::user3);
-    printEverySeverity();
-    Logger::SetVerbosity(Verbosity::user4);
-    printEverySeverity();
-}
-
-int main()
-{
-    Logger::SetConsoleColor(true);
-
-    auto spec = VerbositySpec::Make(VerbositySpec::Info::file_line_function,
-                                    VerbositySpec::Info::process_name,
-                                    VerbositySpec::Info::process_name);
-    cout << "Defining custom verbosity \"user2\"" << endl;
-    Logger::DefineVerbosity(Verbosity::user2, spec);
-
-    cout << "cout: testing severities..." << endl;
-
-    printAllVerbositiesWithSeverity(Severity::trace);
-    printAllVerbositiesWithSeverity(Severity::debug4);
-    printAllVerbositiesWithSeverity(Severity::debug3);
-    printAllVerbositiesWithSeverity(Severity::debug2);
-    printAllVerbositiesWithSeverity(Severity::debug1);
-    printAllVerbositiesWithSeverity(Severity::debug);
-    printAllVerbositiesWithSeverity(Severity::info);
-    printAllVerbositiesWithSeverity(Severity::state);
-    printAllVerbositiesWithSeverity(Severity::warn);
-    printAllVerbositiesWithSeverity(Severity::error);
-    printAllVerbositiesWithSeverity(Severity::nolog);
-
-    cout << endl;
-    cout << "cout: setting severity to 'info' and verbosity to 'medium'" << endl;
-    Logger::SetConsoleSeverity(Severity::info);
-    Logger::SetVerbosity(Verbosity::medium);
-
-    cout << "cout: is logging trace: " << fair::Logger::Logging(Severity::trace) << endl;
-    cout << "cout: is logging debug4: " << fair::Logger::Logging(Severity::debug) << endl;
-    cout << "cout: is logging debug3: " << fair::Logger::Logging(Severity::debug) << endl;
-    cout << "cout: is logging debug2: " << fair::Logger::Logging(Severity::debug) << endl;
-    cout << "cout: is logging debug1: " << fair::Logger::Logging(Severity::debug) << endl;
-    cout << "cout: is logging debug: " << fair::Logger::Logging(Severity::debug) << endl;
-    cout << "cout: is logging info: " << fair::Logger::Logging(Severity::info) << endl;
-    cout << "cout: is logging state: " << fair::Logger::Logging(Severity::state) << endl;
-    cout << "cout: is logging warn: " << fair::Logger::Logging(Severity::warn) << endl;
-    cout << "cout: is logging error: " << fair::Logger::Logging(Severity::error) << endl;
-    cout << "cout: is logging fatal: " << fair::Logger::Logging(Severity::fatal) << endl;
-    cout << "cout: is logging nolog: " << fair::Logger::Logging(Severity::nolog) << endl;
-
-    for (int i = 0; i < 1000000; ++i) {
-        silentlyPrintAllVerbositiesWithSeverity(Severity::nolog);
-    }
-    cout << endl;
-    cout << "cout: setting severity to 'trace' and verbosity to 'veryhigh'" << endl;
-    Logger::SetConsoleSeverity(Severity::trace);
-    Logger::SetVerbosity(Verbosity::veryhigh);
-
-    cout << endl;
-    cout << "cout: testing conditional logging..." << endl;
-    int x = 0;
-    LOG(info) << "x = " << x << " (initial)";
-    LOG_IF(info, (x == 0)) << "incrementing x to " << ++x;
-    LOG(info) << "x = " << x << " (after increment)";
-    LOG_IF(info, (x == 0)) << "this should not be printed and x not incremented: " << ++x;
-    LOG(info) << "x = " << x << " (after conditional increment)";
-
-    cout << endl;
-    cout << "cout: setting severity to 'nolog'" << endl;
-    Logger::SetConsoleSeverity(Severity::nolog);
-
-    cout << "cout: ----------------------------" << endl;
-    cout << "cout: open log file with severity 'error'" << endl;
-    Logger::InitFileSink(Severity::error, "test_log", true);
-    printEverySeverity();
-    cout << "cout: closing log file" << endl;
-    Logger::RemoveFileSink();
-
-
-    cout << "cout: setting severity to 'nolog'" << endl;
-    Logger::SetConsoleSeverity(Severity::nolog);
-    cout << "cout: ----------------------------" << endl;
-    cout << "cout: adding custom sink with error severity" << endl << endl;
-
-    Logger::AddCustomSink("CustomSink", "error", [](const string& content, const LogMetaData& metadata)
-    {
-        cout << "CustomSink: content: " << content << endl;
-
-        cout << "CustomSink: available metadata: " << endl;
-        cout << "CustomSink: \tstd::time_t timestamp: " << metadata.timestamp << endl;
-        cout << "CustomSink: \tstd::chrono::microseconds us: " << metadata.us.count() << endl;
-        cout << "CustomSink: \tstd::string process_name: " << metadata.process_name << endl;
-        cout << "CustomSink: \tstd::string file: " << metadata.file << endl;
-        cout << "CustomSink: \tstd::string line: " << metadata.line << endl;
-        cout << "CustomSink: \tstd::string func: " << metadata.func << endl;
-        cout << "CustomSink: \tstd::string severity_name: " << metadata.severity_name << endl;
-        cout << "CustomSink: \tfair::Severity severity: " << static_cast<int>(metadata.severity) << endl;
-    });
-
-    printEverySeverity();
-
-    cout << endl << "cout: removing custom sink with info severity" << endl;
-
-    Logger::AddCustomSink("CustomSink", Severity::error, [](const string& /*content*/, const LogMetaData& /*metadata*/){});
-    Logger::RemoveCustomSink("CustomSink");
-    Logger::RemoveCustomSink("bla");
-
-    cout << "cout: setting severity to 'trace'" << endl;
-    Logger::SetConsoleSeverity(Severity::trace);
-
-    LOGF(info, "Hello {} {}!", "world", ":-)");
-    LOGP(info, "Hello %s %s!", "world", ":-)");
-
-    cout << "cout: setting verbosity to 'high'" << endl;
-    Logger::SetVerbosity(Verbosity::high);
-
-    LOGV(info, verylow) << "I should be printed with very low verbosity";
-
-    cout << "cout: pushing 4 new lines with LOGN() in info verbosity" << endl;
-    LOGN(info);
-    LOGN(info);
-    LOGN(info);
-    LOGN(info);
-
-    return 0;
-}
--- a/test/macros.cxx
+++ b/test/macros.cxx
@@ -0,0 +1,60 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include "Common.h"
+#include <Logger.h>
+
+#include <iostream>
+
+using namespace std;
+using namespace fair;
+using namespace fair::logger::test;
+
+int main()
+{
+    try {
+        Logger::SetConsoleColor(false);
+        Logger::SetConsoleSeverity(Severity::fatal);
+        Logger::SetVerbosity(Verbosity::verylow);
+
+        int x = 0;
+
+        CheckOutput("^incrementing x to 1\n$", [&]() { LOG_IF(fatal, true) << "incrementing x to " << ++x; });
+        if (x != 1) {
+            throw runtime_error(ToStr("expected x to be 1, but it is: ", x));
+        }
+
+        CheckOutput("^$", [&]() { LOG_IF(fatal, false) << "incrementing x to " << ++x; });
+        if (x != 1) {
+            throw runtime_error(ToStr("expected x to be 1, but it is: ", x));
+        }
+
+        CheckOutput("^Hello world :-\\)!\n$", []() { LOGP(fatal, "Hello {} {}!", "world", ":-)"); });
+        CheckOutput("^Hello world :-\\)!\n$", []() { LOGF(fatal, "Hello %s %s!", "world", ":-)"); });
+
+        CheckOutput(ToStr(R"(^\[FATAL\])", " content\n$"), []() { LOGV(fatal, low) << "content"; });
+
+        CheckOutput("^\n\n\n\n$", []() {
+            LOGN(fatal);
+            LOGN(fatal);
+            LOGN(fatal);
+            LOGN(fatal);
+        });
+
+        Logger::SetVerbosity(Verbosity::veryhigh);
+
+        CheckOutput(ToStr(R"(^\[.*\]\[\d{2}:\d{2}:\d{2}\.\d{6}\]\[FATAL\]\[a:4:b\])", " c\n$"), []() {
+            LOGD(Severity::fatal, "a", "4", "b") << "c";
+        });
+    } catch (runtime_error& rte) {
+        cout << rte.what() << endl;
+        return 1;
+    }
+
+    return 0;
+}
--- a/test/nolog.cxx
+++ b/test/nolog.cxx
@@ -0,0 +1,63 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include <Logger.h>
+
+using namespace std;
+using namespace fair;
+
+void printEverySeverity()
+{
+    LOG(nolog)     << "nolog message ";
+    LOG(trace)     << "trace message ";
+    LOG(debug4)    << "debug4 message ";
+    LOG(debug3)    << "debug3 message ";
+    LOG(debug2)    << "debug2 message ";
+    LOG(debug1)    << "debug1 message ";
+    LOG(debug)     << "debug message ";
+    LOG(detail)    << "detail message ";
+    LOG(info)      << "info message ";
+    LOG(state)     << "state message ";
+    LOG(warn)      << "warning message ";
+    LOG(important) << "important message ";
+    LOG(alarm)     << "alarm message ";
+    LOG(error)     << "error message ";
+}
+
+void silentlyPrintAllVerbositiesWithSeverity(Severity sev)
+{
+    Logger::SetConsoleSeverity(sev);
+
+    Logger::SetVerbosity(Verbosity::verylow);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::low);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::medium);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::high);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::veryhigh);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::user1);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::user2);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::user3);
+    printEverySeverity();
+    Logger::SetVerbosity(Verbosity::user4);
+    printEverySeverity();
+}
+
+int main()
+{
+    for (int i = 0; i < 1000000; ++i) {
+        silentlyPrintAllVerbositiesWithSeverity(Severity::nolog);
+    }
+
+    return 0;
+}
--- a/test/severity.cxx
+++ b/test/severity.cxx
@@ -0,0 +1,101 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include "Common.h"
+#include <Logger.h>
+
+#include <cstdint>
+#include <iostream>
+#include <stdexcept>
+#include <string>
+
+using namespace std;
+using namespace fair;
+using namespace fair::logger::test;
+
+uint32_t printEverySeverity(uint32_t i)
+{
+    LOG(nolog)     << "nolog message, counter: "     << i++;
+    LOG(trace)     << "trace message, counter: "     << i++;
+    LOG(debug4)    << "debug4 message, counter: "    << i++;
+    LOG(debug3)    << "debug3 message, counter: "    << i++;
+    LOG(debug2)    << "debug2 message, counter: "    << i++;
+    LOG(debug1)    << "debug1 message, counter: "    << i++;
+    LOG(debug)     << "debug message, counter: "     << i++;
+    LOG(detail)    << "detail message, counter: "    << i++;
+    LOG(info)      << "info message, counter: "      << i++;
+    LOG(state)     << "state message, counter: "     << i++;
+    LOG(warn)      << "warning message, counter: "   << i++;
+    LOG(important) << "important message, counter: " << i++;
+    LOG(alarm)     << "alarm message, counter: "     << i++;
+    LOG(error)     << "error message, counter: "     << i++;
+    LOG(fatal)     << "fatal message, counter: "     << i++;
+
+    return i;
+}
+
+void CheckSeverity(Severity severity)
+{
+    Logger::SetConsoleSeverity(severity);
+    auto sev = Logger::GetConsoleSeverity();
+
+    cout << "##### testing severity '" << Logger::SeverityName(sev) << "' (" << static_cast<int>(sev) << "), Logging(): " << std::boolalpha << Logger::Logging(sev) << endl;
+
+    for (uint32_t i = 0; i < Logger::fSeverityNames.size(); ++i) {
+        if (sev == Severity::nolog) {
+            if (i == static_cast<int>(fair::Severity::fatal)) {
+                if (!Logger::Logging(static_cast<Severity>(i))) {
+                    throw runtime_error(ToStr("expecting to be logging ", Logger::fSeverityNames.at(i), " during ", sev, ", but it is not."));
+                }
+            } else {
+                if (Logger::Logging(static_cast<Severity>(i))) {
+                    throw runtime_error(ToStr("expecting to NOT be logging ", Logger::fSeverityNames.at(i), " during ", sev, ", but it is."));
+                }
+            }
+        } else {
+            if (i >= static_cast<unsigned int>(sev)) {
+                if (!Logger::Logging(static_cast<Severity>(i))) {
+                    throw runtime_error(ToStr("expecting to be logging ", Logger::fSeverityNames.at(i), " during ", sev, ", but it is not."));
+                }
+            } else {
+                if (Logger::Logging(static_cast<Severity>(i))) {
+                    throw runtime_error(ToStr("expecting to NOT be logging ", Logger::fSeverityNames.at(i), " during ", sev, ", but it is."));
+                }
+            }
+        }
+    }
+
+    uint32_t i = 0;
+    i = printEverySeverity(i);
+    if (sev == Severity::nolog) {
+        if (i != 1) {
+            throw runtime_error(ToStr("expected: i==1, found: i==", i));
+        }
+    } else {
+        if (i != Logger::fSeverityNames.size() - static_cast<int>(sev)) {
+            throw runtime_error(ToStr("expected: i==", Logger::fSeverityNames.size() - static_cast<int>(sev) - 1, ", found: i==", i));
+        }
+    }
+}
+
+int main()
+{
+    try {
+        Logger::SetConsoleColor(true);
+
+        cout << "##### testing " << Logger::fSeverityNames.size() << " severities..." << endl;
+        for (uint32_t i = 0; i < Logger::fSeverityNames.size(); ++i) {
+            CheckSeverity(static_cast<Severity>(i));
+        }
+    } catch (runtime_error& rte) {
+        cout << rte.what() << endl;
+        return 1;
+    }
+
+    return 0;
+}
--- a/test/sinks.cxx
+++ b/test/sinks.cxx
@@ -0,0 +1,151 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include "Common.h"
+#include <Logger.h>
+
+#include <fstream>
+#include <iostream>
+#include <random>
+#include <sstream>
+
+using namespace std;
+using namespace fair;
+using namespace fair::logger::test;
+
+int main()
+{
+#ifdef FAIR_MIN_SEVERITY
+    if (static_cast<int>(Severity::FAIR_MIN_SEVERITY) > static_cast<int>(Severity::warn)) {
+        cout << "test requires at least FAIR_MIN_SEVERITY == warn to run, skipping" << endl;
+        return 0;
+    }
+#endif
+
+    try {
+        Logger::SetConsoleColor(false);
+        Logger::SetConsoleSeverity(Severity::nolog);
+        Logger::SetVerbosity(Verbosity::low);
+
+        if (Logger::Logging(Severity::warn)) { cout << "Logger expected to NOT log warn, but it reports to do so" << endl; return 1; }
+        if (Logger::Logging(Severity::error)) { cout << "Logger expected to NOT log error, but it reports to do so" << endl; return 1; }
+        if (!Logger::Logging(Severity::fatal)) { cout << "Logger expected to log fatal, but it reports not to" << endl; return 1; }
+
+        cout << "##### adding file sink with warn severity" << endl;
+        random_device rd;
+        mt19937 gen(rd());
+        uniform_int_distribution<> distrib(1, 65536);
+        string name = Logger::InitFileSink(Severity::warn, string("test_log_" + to_string(distrib(gen))), true);
+
+        if (Logger::GetFileSeverity() != Severity::warn) {
+            throw runtime_error(ToStr("File sink severity (", Logger::GetFileSeverity(), ") does not match the expected one (", Severity::warn, ")"));
+        }
+
+        CheckOutput("^\\[FATAL\\] fatal\n$", [](){
+            LOG(state) << "state";
+            LOG(warn) << "warning";
+            LOG(error) << "error";
+            LOG(fatal) << "fatal";
+        });
+
+        if (Logger::Logging(Severity::state)) { cout << "Logger expected to NOT log warn, but it reports to do so" << endl; return 1; }
+        if (!Logger::Logging(Severity::warn)) { cout << "Logger expected to log warn, but it reports not to" << endl; return 1; }
+        if (!Logger::Logging(Severity::error)) { cout << "Logger expected to log error, but it reports not to" << endl; return 1; }
+        if (!Logger::Logging(Severity::fatal)) { cout << "Logger expected to log fatal, but it reports not to" << endl; return 1; }
+
+        ifstream t(name);
+        stringstream buffer;
+        buffer << t.rdbuf();
+        string fileContent = buffer.str();
+
+        if (fileContent != "[WARN] warning\n[ERROR] error\n[FATAL] fatal\n") {
+            throw runtime_error(ToStr("unexpected file sink output. expected:\n[WARN] warning\n[ERROR] error\n[FATAL] fatal\nfound:\n", fileContent));
+        }
+
+        cout << "##### removing file sink with warn severity" << endl;
+        Logger::RemoveFileSink();
+
+        if (Logger::Logging(Severity::warn)) { cout << "Logger expected to NOT log warn, but it reports to do so" << endl; return 1; }
+        if (Logger::Logging(Severity::error)) { cout << "Logger expected to NOT log error, but it reports to do so" << endl; return 1; }
+        if (!Logger::Logging(Severity::fatal)) { cout << "Logger expected to log fatal, but it reports not to" << endl; return 1; }
+
+        cout << "##### adding custom sink with warn severity" << endl;
+
+        Logger::AddCustomSink("CustomSink", "warn", [](const string& content, const LogMetaData& metadata)
+        {
+            cout << "CustomSink " << content << endl;
+
+            if (metadata.severity != Severity::warn && metadata.severity != Severity::error && metadata.severity != Severity::fatal) {
+                throw runtime_error(ToStr("unexpected severity message arrived at custom sink that accepts only warn,error,fatal: ", metadata.severity));
+            }
+
+            if (metadata.severity_name != "WARN" && metadata.severity_name != "ERROR" && metadata.severity_name != "FATAL") {
+                throw runtime_error(ToStr("unexpected severity name arrived at custom sink that accepts only warn,error,fatal: ", metadata.severity_name));
+            }
+        });
+
+        if (Logger::GetCustomSeverity("CustomSink") != Severity::warn) {
+            throw runtime_error(ToStr("File sink severity (", Logger::GetCustomSeverity("CustomSink"), ") does not match the expected one (", Severity::warn, ")"));
+        }
+
+        bool oorThrown = false;
+        try {
+            Logger::GetCustomSeverity("NonExistentSink");
+        } catch (const out_of_range& oor) {
+            oorThrown = true;
+        }
+        if (!oorThrown) {
+            throw runtime_error("Did not detect a severity request from a non-existent sink");
+        }
+
+        CheckOutput("^CustomSink warning\nCustomSink error\nCustomSink fatal\n\\[FATAL\\] fatal\n$", [](){
+            LOG(state) << "state";
+            LOG(warn) << "warning";
+            LOG(error) << "error";
+            LOG(fatal) << "fatal";
+        });
+
+        if (Logger::Logging(Severity::state)) { cout << "Logger expected to NOT log warn, but it reports to do so" << endl; return 1; }
+        if (!Logger::Logging(Severity::warn)) { cout << "Logger expected to log warn, but it reports not to" << endl; return 1; }
+        if (!Logger::Logging(Severity::error)) { cout << "Logger expected to log error, but it reports not to" << endl; return 1; }
+        if (!Logger::Logging(Severity::fatal)) { cout << "Logger expected to log fatal, but it reports not to" << endl; return 1; }
+
+        cout << "##### removing custom sink with error severity" << endl;
+
+        bool caught = false;
+        try {
+            Logger::AddCustomSink("CustomSink", Severity::error, [](const string& /*content*/, const LogMetaData& /*metadata*/){});
+        } catch (runtime_error& rte) {
+            caught = true;
+        }
+        if (!caught) {
+            throw runtime_error("expected to throw a runtime_error upon adding sink with same key, but none was thrown");
+        }
+
+        Logger::RemoveCustomSink("CustomSink");
+
+        if (Logger::Logging(Severity::warn)) { cout << "Logger expected to NOT log warn, but it reports to do so" << endl; return 1; }
+        if (Logger::Logging(Severity::error)) { cout << "Logger expected to NOT log error, but it reports to do so" << endl; return 1; }
+        if (!Logger::Logging(Severity::fatal)) { cout << "Logger expected to log fatal, but it reports not to" << endl; return 1; }
+
+        caught = false;
+        try {
+            Logger::RemoveCustomSink("bla");
+        } catch (runtime_error& rte) {
+            caught = true;
+        }
+        if (!caught) {
+            throw runtime_error("expected to throw a runtime_error upon removing non-existent sink, but none was thrown");
+        }
+    } catch (runtime_error& rte) {
+        cout << rte.what() << endl;
+        return 1;
+    }
+
+    return 0;
+}
--- a/test/threads.cxx
+++ b/test/threads.cxx
@@ -0,0 +1,67 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include "Common.h"
+#include <Logger.h>
+
+#include <iostream>
+#include <thread>
+#include <vector>
+
+using namespace std;
+using namespace fair;
+using namespace fair::logger::test;
+
+void f()
+{
+    LOG(fatal) << "a" << "b" << "c" << "d" << "e" << "f" << "g" << "h" << "i" << "j" << "k" << "l" << "m" << "n" << "o" << "p" << "q" << "r" << "s" << "t" << "u" << "v" << "w" << "x" << "y" << "z";
+}
+
+int main()
+{
+    try {
+        Logger::SetConsoleColor(false);
+        Logger::SetConsoleSeverity(Severity::fatal);
+        Logger::SetVerbosity(Verbosity::veryhigh);
+
+        CheckOutput(
+R"(^\[.*\]\[\d{2}:\d{2}:\d{2}\.\d{6}\]\[FATAL\]\[.*:\d+:.*\] abcdefghijklmnopqrstuvwxyz
+\[.*\]\[\d{2}:\d{2}:\d{2}\.\d{6}\]\[FATAL\]\[.*:\d+:.*\] abcdefghijklmnopqrstuvwxyz
+\[.*\]\[\d{2}:\d{2}:\d{2}\.\d{6}\]\[FATAL\]\[.*:\d+:.*\] abcdefghijklmnopqrstuvwxyz
+\[.*\]\[\d{2}:\d{2}:\d{2}\.\d{6}\]\[FATAL\]\[.*:\d+:.*\] abcdefghijklmnopqrstuvwxyz
+\[.*\]\[\d{2}:\d{2}:\d{2}\.\d{6}\]\[FATAL\]\[.*:\d+:.*\] abcdefghijklmnopqrstuvwxyz
+$)", []() {
+            thread t1(f);
+            thread t2(f);
+            thread t3(f);
+            thread t4(f);
+            thread t5(f);
+            t1.join();
+            t2.join();
+            t3.join();
+            t4.join();
+            t5.join();
+        });
+
+        thread t1(f);
+        thread t2(f);
+        thread t3(f);
+        thread t4(f);
+        thread t5(f);
+        t1.join();
+        t2.join();
+        t3.join();
+        t4.join();
+        t5.join();
+    } catch (runtime_error& rte) {
+        cout << rte.what() << endl;
+        return 1;
+    }
+
+    return 0;
+}
--- a/test/verbosity.cxx
+++ b/test/verbosity.cxx
@@ -0,0 +1,102 @@
+/********************************************************************************
+ * Copyright (C) 2014-2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include "Common.h"
+#include <Logger.h>
+
+#include <iostream>
+#include <string>
+
+using namespace std;
+using namespace fair;
+using namespace fair::logger::test;
+
+int main()
+{
+    try {
+        Logger::SetConsoleColor(false);
+        Logger::SetConsoleSeverity(Severity::fatal);
+
+        auto spec1 = VerbositySpec::Make(VerbositySpec::Info::file_line_function, VerbositySpec::Info::process_name);
+        auto spec2 = VerbositySpec::Make(VerbositySpec::Info::process_name, VerbositySpec::Info::file_line_function);
+
+        Logger::DefineVerbosity(Verbosity::user1, spec1);
+        Logger::SetVerbosity(Verbosity::user1); // spec1 on user1
+        CheckOutput(ToStr(R"(^\[.*:\d{2}:.*\]\[.*\])", " content\n$"), []() { LOG(fatal) << "content"; });
+
+        Logger::DefineVerbosity(Verbosity::user1, spec2);
+        Logger::SetVerbosity(Verbosity::user1); // spec2 on user1
+        CheckOutput(ToStr(R"(^\[.*\]\[.*:\d{2}:.*\])", " content\n$"), []() { LOG(fatal) << "content"; });
+
+        Logger::DefineVerbosity(Verbosity::user2, spec1);
+        Logger::SetVerbosity(Verbosity::user2); // spec1 on user2
+        CheckOutput(ToStr(R"(^\[.*:\d{2}:.*\]\[.*\])", " content\n$"), []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::verylow); // content
+        CheckOutput("^content\n$", []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::low); // [severity] content
+        CheckOutput(ToStr(R"(^\[FATAL\])", " content\n$"), []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::medium); // [HH:MM:SS][severity] content
+        CheckOutput(ToStr(R"(^\[\d{2}:\d{2}:\d{2}\]\[FATAL\])", " content\n$"), []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::high); // [process_name][HH:MM:SS][severity] content
+        CheckOutput(ToStr(R"(^\[.*\]\[\d{2}:\d{2}:\d{2}\]\[FATAL\])", " content\n$"), []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::veryhigh); // [process_name][HH:MM:SS:µS][severity][file:line:function] content
+        CheckOutput(ToStr(R"(^\[.*\]\[\d{2}:\d{2}:\d{2}\.\d{6}\]\[FATAL\]\[.*:\d+:.*\])", " content\n$"), []() { LOG(fatal) << "content"; });
+
+        Logger::SetConsoleColor(true);
+
+        Logger::SetVerbosity(Verbosity::verylow); // content
+        CheckOutput(
+            "^"
+            "content\n"
+            "$", []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::low); // [severity] content
+        CheckOutput(
+            "^"
+            "\\[\033\\[01;31mFATAL\033\\[0m\\]"
+            " content\n"
+            "$", []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::medium); // [HH:MM:SS][severity] content
+        CheckOutput(
+            "^"
+            "\\[\033\\[01;36m\\d{2}:\\d{2}:\\d{2}\033\\[0m\\]"
+            "\\[\033\\[01;31mFATAL\033\\[0m\\]"
+            " content\n"
+            "$", []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::high); // [process_name][HH:MM:SS][severity] content
+        CheckOutput(
+            "^"
+            "\\[\033\\[01;34m.*\033\\[0m\\]"
+            "\\[\033\\[01;36m\\d{2}:\\d{2}:\\d{2}\033\\[0m\\]"
+            "\\[\033\\[01;31mFATAL\033\\[0m\\]"
+            " content\n"
+            "$", []() { LOG(fatal) << "content"; });
+
+        Logger::SetVerbosity(Verbosity::veryhigh); // [process_name][HH:MM:SS:µS][severity][file:line:function] content
+        CheckOutput(
+            "^"
+            "\\[\033\\[01;34m.*\033\\[0m\\]"
+            "\\[\033\\[01;36m\\d{2}:\\d{2}:\\d{2}\\.\\d{6}\033\\[0m\\]"
+            "\\[\033\\[01;31mFATAL\033\\[0m\\]"
+            "\\[\033\\[01;34m.*\033\\[0m:\033\\[01;33m\\d+\033\\[0m:\033\\[01;34m.*\033\\[0m\\]"
+            " content\n"
+            "$", []() { LOG(fatal) << "content"; });
+    } catch (runtime_error& rte) {
+        cout << rte.what() << endl;
+        return 1;
+    }
+
+    return 0;
+}
Author	SHA1	Message	Date
Alexey Rybalchenko	56b90a7445	Avoid "Unknown severity" message also for uppercase fatal	2022-06-28 11:23:57 +02:00
Giulio Eulisse	7fc05f3808	Avoid "Unknown severity" message for fatal	2022-06-28 11:23:57 +02:00
Dennis Klein	d93fb0870b	ci: Update macOS builds	2022-04-17 06:10:15 +02:00
Alexey Rybalchenko	953eac19c8	Add 'detail' severity between debug and info	2022-04-12 11:00:41 +02:00
Alexey Rybalchenko	9a6644c931	Adapt to fmt's deprecation of format_to memory buffer overload	2021-11-26 11:23:42 +01:00
Alexey Rybalchenko	27040ea292	Deprecate uppercase severity names	2021-11-25 14:29:18 +01:00
David Rohr	6545d0efa2	Include fmt/ostream.h, needed for on the fly std::ostream usage	2021-11-15 10:52:33 +01:00
Dennis Klein	159a21c24b	ci: Add macos-11-arm64 (apple-clang-13) build	2021-10-01 17:10:13 +02:00
Dennis Klein	2494a9e85a	Revert "Deprecate uppercase severity names" This reverts commit `ba7da2f79a`.	2021-09-21 12:54:42 +02:00
Dennis Klein	d0b109015d	ci: Update envs	2021-09-10 18:54:43 +02:00
Alexey Rybalchenko	ba7da2f79a	Deprecate uppercase severity names	2021-09-10 14:25:31 +02:00
Alexey Rybalchenko	1c7e7f566a	Bump C++ requirement to C++14	2021-09-10 14:25:31 +02:00
Alexey Rybalchenko	b2dfdd1768	Add 'alarm' and 'important' severities	2021-09-10 14:25:31 +02:00
Christian Tacke	13ebedca3d	Extract find_package2 into own File To make it easier to share find_package2 across projects let's move it into its own file.	2021-04-09 14:26:36 +02:00
Christian Tacke	1c43450582	bundled fmt: Fix target_compile_feature When using the bundled fmt, the declared "INTERFACE" target can only declare INTERFACE compile features via target_compile_feature.	2021-04-09 14:25:10 +02:00
Dennis Klein	f9af3a7269	CMake: Do not unconditionally override settings without good reason relates FairRootGroup/FairMQ#342	2021-03-22 06:37:16 +01:00
Dennis Klein	064e034d25	Update README	2021-03-22 06:37:16 +01:00
Dennis Klein	3f55a16850	CMake: Require language level per target https://cmake.org/cmake/help/latest/manual/cmake-compile-features.7.html#requiring-language-standards	2021-03-22 06:37:16 +01:00
Dennis Klein	340b005997	Export relocatable include dirs	2021-03-07 11:16:40 +01:00
Dennis Klein	f012a870e7	CI: Migrate to new alfa-ci infrastructure	2021-03-05 03:06:08 +01:00
David Rohr	bcfe438862	Use for instead of if syntax to avoid compiler warnings	2020-08-25 18:53:01 +02:00
Alexey Rybalchenko	4b3e6d3837	Always define FAIR_MIN_SEVERITY	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	b30cacab12	Adjust regex expressions	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	c8d59d11fb	Add test for cycle methods	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	a737a1de9c	Add output operator for severities, verbosities	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	1cb941021c	Add getters for file & custom sink severity	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	de1014dabb	Add unit tests	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	ce64f628b0	Remove NDEBUG check	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	35ebc10204	Consider FAIR_MIN_SEVERITY when setting severities	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	1253bbbac8	Throw if removing non-existing sink or adding existing	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	e9bd3f2b62	InitFileSink(): return name of the created file	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	1f3b2a2c82	Minor formatting	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	2b37d0147e	make GetColoredSeverityString public	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	f0cbe0bd47	Move Logging() to header	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	5f7197d987	Fix file sink and update fMinSeverity on its removal	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	b1cb6f8a99	Add CMake variable to control FAIR_MIN_SEVERITY	2020-07-17 11:40:15 +02:00
Alexey Rybalchenko	56780689fc	Exchange the meaning of LOGP and LOGF	2020-06-22 09:49:07 +02:00