feat: add unit tests in ci

.clang-tidy

@@ -4,6 +4,7 @@ Checks:
 -modernize-use-trailing-return-type,-bugprone-easily-swappable-parameters,-readability-identifier-length'
 WarningsAsErrors: '*'
 HeaderFilterRegex: 'include/aws/.*\.h$'
+ExcludeHeaderFilter: 'build/_deps/gtest-src.*'
 FormatStyle: 'none'
 CheckOptions:
   - key:             modernize-pass-by-value.ValuesOnly

.github/workflows/workflow.yml

@@ -33,6 +33,9 @@ jobs:
       # Build your program with the given configuration
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
 
+    - name: Test It
+      run: cd build && make && ctest
+
   build-on-arm-too:
     runs-on: ubuntu-latest
     steps:
@@ -45,6 +48,7 @@ jobs:
           apt-get update && apt-get install -y cmake g++ clang-tidy libcurl4-openssl-dev
           cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_CXX_CLANG_TIDY=clang-tidy
           cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+          cd build && make && ctest
 
   build-demo:
     runs-on: ubuntu-latest

CMakeLists.txt

@@ -90,11 +90,10 @@ else ()
     target_compile_definitions(${PROJECT_NAME} PRIVATE "AWS_LAMBDA_LOG=0")
 endif()
 
-#tests
-if (ENABLE_TESTS)
-    enable_testing()
-    add_subdirectory(tests)
-endif()
+
+enable_testing()
+add_subdirectory(tests)
+
 
 #versioning
 configure_file(

tests/CMakeLists.txt

@@ -1,17 +1,31 @@
 project(aws-lambda-runtime-tests LANGUAGES CXX)
 
-find_package(AWSSDK COMPONENTS lambda iam)
+include(FetchContent)
+FetchContent_Declare(gtest
+  QUIET
+  URL https://github.com/google/googletest/archive/v1.15.2.tar.gz
+)
+# configure build of googletest
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+set(BUILD_GMOCK OFF CACHE BOOL "" FORCE)
+set(INSTALL_GTEST OFF)
+FetchContent_MakeAvailable(gtest)
 
-add_executable(${PROJECT_NAME}
-    main.cpp
-    runtime_tests.cpp
-    version_tests.cpp
-    gtest/gtest-all.cc)
+add_executable(
+    unit_tests
+    no_op_test.cpp
+    )
 
-target_link_libraries(${PROJECT_NAME} PRIVATE ${AWSSDK_LINK_LIBRARIES} aws-lambda-runtime)
+target_link_libraries(unit_tests
+  PRIVATE
+    gtest_main
+  )
 
+# automatic discovery of unit tests
 include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME} EXTRA_ARGS "--aws_prefix=${TEST_RESOURCE_PREFIX}") # requires CMake 3.10 or later
-
-add_subdirectory(resources)
-
+gtest_discover_tests(unit_tests
+  PROPERTIES
+    LABELS "unit"
+  DISCOVERY_TIMEOUT  # how long to wait (in seconds) before crashing
+    240
+  )