conky/cmake/CatchAddTests.cmake

# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.

set(prefix "${TEST_PREFIX}")
set(suffix "${TEST_SUFFIX}")
set(spec ${TEST_SPEC})
set(extra_args ${TEST_EXTRA_ARGS})
set(properties ${TEST_PROPERTIES})
set(script)
set(suite)
set(tests)

function(add_command NAME)
  set(_args "")
  foreach(_arg ${ARGN})
    if(_arg MATCHES "[^-./:a-zA-Z0-9_]")
      set(_args "${_args} [==[${_arg}]==]") # form a bracket_argument
    else()
      set(_args "${_args} ${_arg}")
    endif()
  endforeach()
  set(script "${script}${NAME}(${_args})\n" PARENT_SCOPE)
endfunction()

# Run test executable to get list of available tests
if(NOT EXISTS "${TEST_EXECUTABLE}")
  message(
    FATAL_ERROR "Specified test executable '${TEST_EXECUTABLE}' does not exist")
endif()
execute_process(COMMAND ${TEST_EXECUTOR} "${TEST_EXECUTABLE}" ${spec}
                        --list-test-names-only
                OUTPUT_VARIABLE output
                RESULT_VARIABLE result)
# Catch --list-test-names-only reports the number of tests, so 0 is...
# surprising
if(${result} EQUAL 0)
  message(WARNING "Test executable '${TEST_EXECUTABLE}' contains no tests!\n")
elseif(${result} LESS 0)
  message(FATAL_ERROR "Error running test executable '${TEST_EXECUTABLE}':\n"
                      "  Result: ${result}\n" "  Output: ${output}\n")
endif()

string(REPLACE "\n"
               ";"
               output
               "${output}")

# Parse output
foreach(line ${output})
  set(test ${line})
  # use escape commas to handle properly test cases with commans inside the name
  string(REPLACE ","
                 "\\,"
                 test_name
                 ${test})
  # ...and add to script
  add_command(add_test
              "${prefix}${test}${suffix}"
              ${TEST_EXECUTOR}
              "${TEST_EXECUTABLE}"
              "${test_name}"
              ${extra_args})
  add_command(set_tests_properties
              "${prefix}${test}${suffix}"
              PROPERTIES
              WORKING_DIRECTORY
              "${TEST_WORKING_DIR}"
              ${properties})
  list(APPEND tests "${prefix}${test}${suffix}")
endforeach()

# Create a list of all discovered tests, which users may use to e.g. set
# properties on the tests
add_command(set ${TEST_LIST} ${tests})

# Write CTest script
file(WRITE "${CTEST_FILE}" "${script}")