refactor: Delete non-compile tests (#4076)

This seemed like a good idea at the time, but the complexity seems not
to be worth it.

--- END COMMIT MESSAGE ---

Any further description goes here, @-mentions are ok here!

- Use a *conventional commits* prefix: [quick
summary](https://www.conventionalcommits.org/en/v1.0.0/#summary)
- We mostly use `feat`, `fix`, `refactor`, `docs`, `chore` and `build`
types.
- A milestone will be assigned by one of the maintainers


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **Tests**
- Removed legacy tests that verified compile-time constraints and
specific immutability checks.
- Added new unit tests for various components related to track
parameters and measurement helpers.

- **Chores**
- Streamlined the build process by eliminating outdated test-handling
logic.

These updates enhance test coverage and clean up internal testing
infrastructure without impacting end-user functionality.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Tests/UnitTests/CMakeLists.txt

@@ -30,102 +30,6 @@ macro(add_unittest _name _source)
     add_dependencies(unit_tests ${_target})
 endmacro()
 
-# This function adds a non compile test. To this end it
-# - Adds a target to process the file at `src`, and converts begin/end macros
-#   to `#if defined` in an extra file
-# - Adds an executable target for that source file, excludes it from the default build
-#   Set a preprocessor define to enable ONE critical section.
-# - Adds a test job to ctest which invokes CMake to build this executable target.
-#   The test is set to fail if the build succeeds, i.e. testing if something doesn't compile
-# - Adds a closure test where it's supposed to actually compile if all of the
-#   critical sections are removed
-function(add_non_compile_test name src)
-    # Don't add anything if the corresponding flag is not set
-    if(NOT ACTS_BUILD_NONCOMPILE_TESTS)
-        return()
-    endif()
-
-    # Figure out where to put the output file
-    cmake_path(ABSOLUTE_PATH src)
-    get_filename_component(_filename ${src} NAME)
-    set(_processed_source "${CMAKE_CURRENT_BINARY_DIR}/${_filename}")
-
-    # Add a build step to generate the source file by invoking a CMake script
-    add_custom_command(
-        OUTPUT ${_processed_source}
-        DEPENDS ${src}
-        COMMAND
-            "${CMAKE_COMMAND}" -DINPUT_FILE=${src}
-            -DOUTPUT_FILE=${_processed_source} -P
-            ${CMAKE_SOURCE_DIR}/cmake/ActsGenerateNonCompileTest.cmake
-        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-    )
-    add_custom_target("${name}_generated_source" DEPENDS ${_processed_source})
-
-    # Create the executable target, add the generated source code as a
-    # dependencies, so that it's generated when required.
-    set(test "ActsNonCompileTest${name}Closure")
-    set(target "${test}_Executable")
-    add_executable(${target} ${_processed_source})
-    target_link_libraries(${target} PUBLIC ActsCore ActsTestsCommonHelpers)
-    add_dependencies(${target} "${name}_generated_source")
-
-    # Don't build this target by default
-    set_target_properties(
-        ${target}
-        PROPERTIES EXCLUDE_FROM_ALL ON EXCLUDE_FROM_DEFAULT_BUILD ON
-    )
-
-    # Add the test that calls into CMake to build the target. This one we expect to succeed
-    add_test(
-        NAME ${test}
-        COMMAND
-            ${CMAKE_COMMAND} --build . --target ${target} --config
-            $<CONFIGURATION>
-        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-    )
-
-    # Loop over critical section markers and add one pair of executable targets and
-    # and test jobs. The test jobs are flipped, so success is failure.
-    file(READ ${src} content)
-    string(
-        REGEX MATCHALL
-        "ACTS_DOES_NOT_COMPILE_BEGIN\\(([A-Za-z0-9]+)\\)"
-        matches
-        ${content}
-    )
-    foreach(match ${matches})
-        string(
-            REGEX REPLACE
-            "ACTS_DOES_NOT_COMPILE_BEGIN\\(([A-Za-z0-9]+)\\)"
-            "\\1"
-            match
-            ${match}
-        )
-
-        set(test "ActsNonCompileTest${name}${match}")
-        set(target "${test}_Executable")
-        add_executable(${target} ${_processed_source})
-        target_link_libraries(${target} PUBLIC ActsCore ActsTestsCommonHelpers)
-        target_compile_definitions(${target} PRIVATE "-D${match}")
-        add_dependencies(${target} "${name}_generated_source")
-
-        set_target_properties(
-            ${target}
-            PROPERTIES EXCLUDE_FROM_ALL ON EXCLUDE_FROM_DEFAULT_BUILD ON
-        )
-
-        add_test(
-            NAME ${test}
-            COMMAND
-                ${CMAKE_COMMAND} --build . --target ${target} --config
-                $<CONFIGURATION>
-            WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-        )
-        set_tests_properties(${test} PROPERTIES WILL_FAIL ON)
-    endforeach()
-endfunction()
-
 add_subdirectory(Core)
 add_subdirectory_if(Examples ACTS_BUILD_EXAMPLES AND ACTS_BUILD_EXAMPLES_UNITTESTS)
 add_subdirectory_if(Benchmarks ACTS_BUILD_BENCHMARKS)

Tests/UnitTests/Core/EventData/CMakeLists.txt

@@ -17,5 +17,3 @@ add_unittest(SubspaceHelpers SubspaceHelpersTests.cpp)
 add_unittest(SeedEdm SeedEdmTests.cpp)
 add_unittest(SpacePointContainerEdm SpacePointContainerEdmTests.cpp)
 add_unittest(TrackParameterHelpers TrackParameterHelpersTests.cpp)
-
-add_non_compile_test(MultiTrajectory TrackContainerComplianceTests.cpp)