Add test coverage to CI

.github/workflows/build_and_test.yml

@@ -15,10 +15,12 @@ jobs:
 
     steps:
     - if: matrix.os == 'windows-2022'
-      name: Install Cppcheck (Windows)
+      name: Install Cppcheck, OpenCppCoverage, and wkhtmltopdf (Windows)
       run: |
-        choco install -y --ignore-package-exit-codes cppcheck
+        choco install -y --ignore-package-exit-codes cppcheck opencppcoverage wkhtmltopdf
         echo "C:\Program Files\Cppcheck" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+        echo "C:\Program Files\OpenCppCoverage" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+        echo "C:\Program Files\wkhtmltopdf" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
 
     - if: matrix.os == 'windows-2022'
       name: Configure MSVC (Windows)
@@ -57,3 +59,14 @@ jobs:
       name: Test - Debug (Windows)
       run: |
         meson test -vC builddir
+        meson compile ./codecoverage -C builddir
+        $files = (Get-ChildItem -R .\builddir\coverage\*.html)
+        [array]::Reverse($files)
+        wkhtmltopdf --enable-local-file-access --disable-external-links --header-center [title] $files coverage.pdf
+
+    - if: matrix.os == 'windows-2022'
+      name: Upload Coverage Report (Windows)
+      uses: actions/upload-artifact@v3
+      with:
+        name: coverage
+        path: coverage.pdf

meson.build

@@ -13,6 +13,26 @@ else
     add_project_arguments(['-D_CRT_SECURE_NO_WARNINGS'], language: 'cpp')
 endif
 
+# Add code coverage
+
+opencppcoverage = find_program('opencppcoverage', required: false)
+
+opencppcoverage_args = [
+    '--sources', meson.project_name(),
+    '--excluded_sources', 'subprojects',
+    '--excluded_sources', 'tests'
+]
+
+if opencppcoverage.found()
+    run_target('codecoverage',
+        command: [
+            opencppcoverage,
+            '--input_coverage', 'IpcTests.cov',
+            '--export_type', 'html:coverage'
+        ]
+    )
+endif
+
 # Add formatting
 
 format_first = []

tests/meson.build

@@ -17,4 +17,16 @@ ipc_tests = executable(
     dependencies: [gtest_dep, gmock_dep, ipc_dep]
 )
 
-test('IpcTests', ipc_tests)
+# Add code coverage
+
+if opencppcoverage.found()
+    test('IpcTests', opencppcoverage,
+        args: [
+            opencppcoverage_args,
+            '--export_type', 'binary:IpcTests.cov',
+            ipc_tests
+        ]
+    )
+else
+    test('IpcTests', ipc_tests)
+endif