cmake: Add python unit testing

Author: christophe-lunarg

CMakeLists.txt

@@ -38,6 +38,7 @@ set(CMAKE_VISIBILITY_INLINES_HIDDEN "YES")
 add_subdirectory(scripts)
 set(MERGE_SCRIPT ${PROJECT_SOURCE_DIR}/scripts/gen_profiles_file.py)
 set(SOLUTION_SCRIPT ${PROJECT_SOURCE_DIR}/scripts/gen_profiles_solution.py)
+set(PROFILES_SCRIPT ${PROJECT_SOURCE_DIR}/scripts/profiles.py)
 
 find_package(VulkanHeaders REQUIRED CONFIG QUIET)
 

profiles/test/CMakeLists.txt

@@ -39,3 +39,71 @@ add_test(NAME ${TEST_NAME} COMMAND ${TEST_NAME} --gtest_catch_exceptions=0)
 set_target_properties(${TEST_NAME} PROPERTIES FOLDER "Profiles schema")
 
 add_dependencies(VpProfile_test_schema_validation VpGenerated)
+
+function(add_python_unit_test test_base_name)
+    # Check and install 'vulkan-object' if missing
+    get_property(vulkan_object_checked GLOBAL PROPERTY VULKAN_OBJECT_CHECKED)
+    if(NOT vulkan_object_checked)
+        # Fetch the path of the discovered Python interpreter
+        get_target_property(PYTHON_EXE Python3::Interpreter IMPORTED_LOCATION)
+        if(NOT PYTHON_EXE)
+            set(PYTHON_EXE "${Python3_EXECUTABLE}")
+        endif()
+
+        message(STATUS "Checking for Python module 'vulkan_object'...")
+        
+        # See if it's already installed to avoid unnecessary pip calls
+        execute_process(
+            COMMAND "${PYTHON_EXE}" -c "import vulkan_object"
+            RESULT_VARIABLE ERROR_CODE
+            OUTPUT_QUIET
+            ERROR_QUIET
+        )
+
+        # If not installed (ERROR_CODE is non-zero), install it
+        if(NOT ERROR_CODE EQUAL 0)
+            message(STATUS "Module 'vulkan_object' not found. Installing via pip...")
+            execute_process(
+                COMMAND "${PYTHON_EXE}" -m pip install vulkan-object
+                RESULT_VARIABLE pip_status
+            )
+            
+            if(NOT pip_status EQUAL 0)
+                message(FATAL_ERROR "Failed to install 'vulkan-object'. Please install it manually.")
+            endif()
+        else()
+            message(STATUS "Module 'vulkan_object' is already installed.")
+        endif()
+
+        # Cache the check globally so it only runs once per CMake configuration
+        set_property(GLOBAL PROPERTY VULKAN_OBJECT_CHECKED TRUE)
+    endif()
+
+    # Construct the target name and the path to the script
+    set(target_name "python_unit_test_${test_base_name}")
+    set(script_path "${PROJECT_SOURCE_DIR}/scripts/tests/test_${test_base_name}.py")
+
+    # Change the command from a direct file path to a module invocation (-m)
+    add_custom_target(${target_name} ALL
+        COMMAND Python3::Interpreter -m scripts.tests.test_${test_base_name} -v
+        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+        VERBATIM
+        SOURCES "${script_path}"
+        DEPENDS "${script_path}"
+    )
+
+    set_target_properties(${target_name} PROPERTIES FOLDER "Profiles schema")
+    # add_dependencies(${target_name} VpGenerated)
+
+    # Apply the same module invocation fix to the CTest definition
+    add_test(NAME ${target_name} 
+        COMMAND Python3::Interpreter -m scripts.tests.test_${test_base_name} -v
+        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+    )
+endfunction()
+
+add_python_unit_test(util)
+add_python_unit_test(json)
+add_python_unit_test(expression_tree)
+add_python_unit_test(vk_xml_parsing)
+