Set up continuous testing

Linux, Windows, and macOS.

- Can it build?
- Does it pass all tests?

.github/workflows/cmake-multi-platform.yml

@@ -0,0 +1,103 @@
+name: CMake on multiple platforms
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: true
+
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+        c_compiler: [ gcc, clang-17, cl, clang ]
+        build_type: [ RelWithDebInfo ]
+        exclude:
+          - os: ubuntu-latest
+            c_compiler: cl
+          - os: ubuntu-latest
+            c_compiler: clang
+          - os: windows-latest
+            c_compiler: gcc
+          - os: windows-latest
+            c_compiler: clang-17
+          - os: windows-latest
+            c_compiler: clang
+          - os: macos-latest
+            c_compiler: gcc
+          - os: macos-latest
+            c_compiler: clang-17
+          - os: macos-latest
+            c_compiler: cl
+        include:
+          - os: ubuntu-latest
+            c_compiler: gcc
+            cpp_compiler: g++
+          - os: ubuntu-latest
+            c_compiler: clang-17
+            cpp_compiler: clang++-17
+          - os: windows-latest
+            c_compiler: cl
+            cpp_compiler: cl
+          - os: macos-latest
+            c_compiler: clang
+            cpp_compiler: clang++
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set reusable strings
+        # Turn repeated input strings (such as the build output directory) into step outputs.
+        # These step outputs can be used throughout the workflow file.
+        id: strings
+        shell: bash
+        run: |
+          echo "build-output-dir=${{ github.workspace }}/build" >> "$GITHUB_OUTPUT"
+
+      - name: Install Clang 17 (Ubuntu with Clang)
+        if: matrix.os == 'ubuntu-latest' && matrix.c_compiler == 'clang-17'
+        run: |
+          wget https://apt.llvm.org/llvm.sh
+          chmod u+x ./llvm.sh
+          sudo ./llvm.sh 17
+
+      - name: Install Raylib dependencies (Ubuntu)
+        id: install-deps-u
+        if: matrix.os == 'ubuntu-latest'
+        run: >
+          sudo apt install libasound2-dev libx11-dev libxrandr-dev libxi-dev libgl1-mesa-dev libglu1-mesa-dev
+          libxcursor-dev libxinerama-dev
+
+      - name: Install Clang 17 (macOS)
+        if: matrix.os == 'macos-latest'
+        run: |
+          brew install llvm@17
+          echo "/usr/local/opt/llvm/bin" >> "$GITHUB_PATH"
+
+      - name: Configure CMake
+        # Configure CMake in a 'build' subdirectory.
+        # `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
+        # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
+        run: >
+          cmake -B ${{ steps.strings.outputs.build-output-dir }}
+          -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }}
+          -DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
+          -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
+          -S ${{ github.workspace }}
+
+      - name: Build
+        # Build your program with the given configuration. Note that --config is needed because the default Windows
+        # generator is a multi-config generator (Visual Studio generator).
+        run: cmake --build ${{ steps.strings.outputs.build-output-dir }} --config ${{ matrix.build_type }}
+
+      - name: Test
+        working-directory: ${{ steps.strings.outputs.build-output-dir }}
+        # Execute tests defined by the CMake configuration. Note that --build-config is needed because the default
+        # Windows generator is a multi-config generator (Visual Studio generator).
+        # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
+        run: ctest --build-config ${{ matrix.build_type }}

.gitignore

@@ -6,3 +6,6 @@
 /vc140.idb
 /vc140.pdb
 /cmake-build-*
+/Testing/Temporary
+/tests/Testing/Temporary/CTestCostData.txt
+/tests/Testing/Temporary/LastTest.log

CMakeLists.txt

@@ -5,4 +5,8 @@ set(CMAKE_CXX_STANDARD 20)
 
 add_subdirectory(demo)
 add_subdirectory(dyn)
-add_subdirectory(tests)
+
+include(CTest)
+if (BUILD_TESTING)
+    add_subdirectory(tests)
+endif ()

tests/CMakeLists.txt

@@ -6,12 +6,12 @@ FetchContent_Declare(
 )
 # For Windows: Prevent overriding the parent project's compiler/linker settings
 set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
-FetchContent_MakeAvailable(googletest)
+FetchContent_MakeAvailable(GoogleTest)
+include(GoogleTest)
 
 # Now simply link against gtest or gtest_main as needed. Eg
 add_executable(units yoshida_test.cpp
         newton_test.cpp)
-target_link_libraries(units gtest_main)
 target_precompile_headers(units INTERFACE "gtest/gtest.h")
-
-target_link_libraries(units dyn)
+target_link_libraries(units gtest_main dyn)
+gtest_discover_tests(units)