drogon/cmake/ParseAndAddDrogonTests.cmake
2021-05-27 20:09:57 +08:00

79 lines
4.0 KiB
CMake

#==================================================================================================#
# Adapted and re-written from Catch2 to work with Drogon Test #
# #
# Usage #
# 1. make sure this module is in the path or add this otherwise: #
# set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake_modules/") #
# 2. make sure that you've enabled testing option for the project by the call: #
# enable_testing() #
# 3. add the lines to the script for testing target (sample CMakeLists.txt): #
# project(testing_target) #
# enable_testing() #
# #
# file(GLOB SOURCE_FILES "*.cpp") #
# add_executable(${PROJECT_NAME} ${SOURCE_FILES}) #
# #
# include(ParseAndAddDrogonTests) #
# ParseAndAddDrogonTests(${PROJECT_NAME}) #
#==================================================================================================#
cmake_minimum_required(VERSION 3.5)
# This removes the contents between
# - block comments (i.e. /* ... */)
# - full line comments (i.e. // ... )
# contents have been read into '${CppCode}'.
# !keep partial line comments
function(RemoveComments CppCode)
string(ASCII 2 CMakeBeginBlockComment)
string(ASCII 3 CMakeEndBlockComment)
string(REGEX REPLACE "/\\*" "${CMakeBeginBlockComment}" ${CppCode} "${${CppCode}}")
string(REGEX REPLACE "\\*/" "${CMakeEndBlockComment}" ${CppCode} "${${CppCode}}")
string(REGEX REPLACE "${CMakeBeginBlockComment}[^${CMakeEndBlockComment}]*${CMakeEndBlockComment}" "" ${CppCode} "${${CppCode}}")
string(REGEX REPLACE "\n[ \t]*//+[^\n]+" "\n" ${CppCode} "${${CppCode}}")
set(${CppCode} "${${CppCode}}" PARENT_SCOPE)
endfunction()
# Worker function
function(ParseFile SourceFile TestTarget)
set(FullSourcePath ${CMAKE_CURRENT_SOURCE_DIR}/${SourceFile})
if(NOT EXISTS ${FullSourcePath})
return()
endif()
file(STRINGS ${FullSourcePath} Contents NEWLINE_CONSUME)
# Remove block and fullline comments
RemoveComments(Contents)
# Find definition of test names
string(REGEX MATCHALL "[ \t]*DROGON_TEST[ \t]*\\\([a-zA-Z0-9_]+\\\)" Tests "${Contents}")
foreach(TestLine ${Tests})
# Strip newlines
string(REGEX REPLACE "\\\\\n|\n" "" TestLine "${TestLine}")
# Get the name of the test
string(REGEX REPLACE "[ \t]*DROGON_TEST[ \t]*" "" TestLine "${TestLine}")
string(REGEX MATCHALL "[a-zA-Z0-9_]+" TestName "${TestLine}")
# Validate that a test name and tags have been provided
list(LENGTH TestName TestNameLength)
if(NOT TestNameLength EQUAL 1)
message(FATAL_ERROR "${TestName} in ${SourceFile} is not a valid test name."
" Either a bug in the Drogon Test CMake parser or a bug in the test itself")
endif()
# Add the test and set its properties
add_test(NAME "${TestName}" COMMAND ${TestTarget} -r ${TestName} ${AdditionalCatchParameters})
endforeach()
endfunction()
# entry point
function(ParseAndAddDrogonTests TestTarget)
get_target_property(SourceFiles ${TestTarget} SOURCES)
foreach(SourceFile ${SourceFiles})
ParseFile(${SourceFile} ${TestTarget})
endforeach()
endfunction()