Add test coverage report

Author: eel76-hmi

.devcontainer/Dockerfile

@@ -9,7 +9,7 @@ RUN apt update && apt upgrade --yes
 
 RUN apt install --yes gcc-14 g++-14
 RUN apt install --yes clang-format pre-commit
-RUN apt install --yes lcov
+RUN apt install --yes gcovr lcov
 
 # Choose default gcc and g++ version
 

.github/workflows/coverage.yml

@@ -8,12 +8,22 @@ on: # rebuild any PRs and main branch changes
 
 jobs:
   coverage:
-    uses: ./.github/workflows/devcontainer-command.yml
-    with:
-      run_cmd: |
-        cmake -E make_directory build
-        cmake -B build -DCMAKE_BUILD_TYPE=Debug -DTRAITS_TEST_COVERAGE=On -S .
-        cmake --build build --config Debug --target all
-        cmake --build build --config Debug --target test
-        cmake --build build --config Debug --target coverage
+    runs-on: 'ubuntu-24.04'
+
+    steps:
+    - name: Check test coverage
+      uses: ./.github/actions/devcontainer
+      with:
+        command: |
+          cmake -E make_directory build
+          cmake -B build -DCMAKE_BUILD_TYPE=Debug -DTRAITS_TEST_COVERAGE=On -S .
+          cmake --build build --config Debug --target all
+          cmake --build build --config Debug --target test
+          cmake --build build --config Debug --target coverage
+
+    - name: Create test coverage report
+      uses: irongut/[email protected]
+      with:
+        filename: coverage.cobertura.xml
+        badge: true
 

tests/CMakeLists.txt

@@ -68,6 +68,7 @@ add_test(NAME test.fetch COMMAND ${CMAKE_COMMAND} --build "${PROJECT_BINARY_DIR}
 
 if(TRAITS_TEST_COVERAGE)
   find_program(LCOV lcov REQUIRED)
+  find_program(GCOVR gcovr REQUIRED)
   find_program(GENHTML genhtml REQUIRED)
 
   set(CMAKE_CXX_FLAGS "-O0 -coverage")
@@ -78,5 +79,6 @@ if(TRAITS_TEST_COVERAGE)
     COMMAND "${LCOV}" --remove coverage.info '/usr/*' '*/gtest/*' --output-file coverage.info
     COMMAND "${LCOV}" --list coverage.info
     COMMAND "${GENHTML}" --demangle-cpp -o coverage coverage.info
+    COMMAND "${GCOVR}" --cobertura --output coverage.cobertura.xml
     WORKING_DIRECTORY "${CMAKE_BINARY_DIR}")
 endif()