1######################################################################## 2# Experimental CMake build script for Google Test. 3# 4# Consider this a prototype. It will change drastically. For now, 5# this is only for people on the cutting edge. 6# 7# To run the tests for Google Test itself on Linux, use 'make test' or 8# ctest. You can select which tests to run using 'ctest -R regex'. 9# For more options, run 'ctest --help'. 10 11# For hermetic builds, we may need to tell CMake to use compiler in a 12# specific location. 13if (gtest_compiler) 14 include(CMakeForceCompiler) 15 cmake_force_c_compiler("${gtest_compiler}" "") 16 cmake_force_cxx_compiler("${gtest_compiler}" "") 17endif() 18 19######################################################################## 20# 21# Project-wide settings 22 23# Name of the project. 24# 25# CMake files in this project can refer to the root source directory 26# as ${gtest_SOURCE_DIR} and to the root binary directory as 27# ${gtest_BINARY_DIR}. 28# Language "C" is required for find_package(Threads). 29project(gtest CXX C) 30cmake_minimum_required(VERSION 2.6.4) 31 32if (MSVC) 33 # For MSVC, CMake sets certain flags to defaults we want to override. 34 # This replacement code is taken from sample in the CMake Wiki at 35 # http://www.cmake.org/Wiki/CMake_FAQ#Dynamic_Replace. 36 foreach (flag_var 37 CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE 38 CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO) 39 # In hermetic build environments, tests may not have access to MS runtime 40 # DLLs, so this replaces /MD (CRT libraries in DLLs) with /MT (static CRT 41 # libraries). 42 string(REPLACE "/MD" "-MT" ${flag_var} "${${flag_var}}") 43 # We prefer more strict warning checking for building Google Test. 44 # Replaces /W3 with /W4 in defaults. 45 string(REPLACE "/W3" "-W4" ${flag_var} "${${flag_var}}") 46 endforeach() 47endif() 48 49# Where gtest's .h files can be found. 50include_directories( 51 ${gtest_SOURCE_DIR}/include 52 ${gtest_SOURCE_DIR}) 53 54# Where the gtest libraries can be found. 55link_directories( 56 ${gtest_BINARY_DIR}/src) 57 58# Defines CMAKE_USE_PTHREADS_INIT and CMAKE_THREAD_LIBS_INIT. 59find_package(Threads) 60 61# Defines the compiler/linker flags used to build gtest. You can 62# tweak these definitions to suit your need. A variable's value is 63# empty before it's explicitly assigned to. 64 65if (MSVC) 66 # Newlines inside flags variables break CMake's NMake generator. 67 set(cxx_base_flags "-GS -W4 -WX -wd4275 -nologo -J -Zi") 68 set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32") 69 set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN") 70 set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1") 71 set(cxx_no_exception_flags "-D_HAS_EXCEPTIONS=0") 72 set(cxx_no_rtti_flags "-GR-") 73elseif (CMAKE_COMPILER_IS_GNUCXX) 74 set(cxx_base_flags "-Wall -Wshadow") 75 set(cxx_exception_flags "-fexceptions") 76 set(cxx_no_exception_flags "-fno-exceptions") 77 # Until version 4.3.2, GCC doesn't define a macro to indicate 78 # whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI 79 # explicitly. 80 set(cxx_no_rtti_flags "-fno-rtti -DGTEST_HAS_RTTI=0") 81 set(cxx_strict_flags "-Wextra") 82elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro") 83 set(cxx_exception_flags "-features=except") 84 # Sun Pro doesn't provide macros to indicate whether exceptions and 85 # RTTI are enabled, so we define GTEST_HAS_* explicitly. 86 set(cxx_no_exception_flags "-features=no%except -DGTEST_HAS_EXCEPTIONS=0") 87 set(cxx_no_rtti_flags "-features=no%rtti -DGTEST_HAS_RTTI=0") 88elseif (CMAKE_CXX_COMPILER_ID STREQUAL "VisualAge" OR 89 CMAKE_CXX_COMPILER_ID STREQUAL "XL") 90 # CMake 2.8 changes Visual Age's compiler ID to "XL". 91 set(cxx_exception_flags "-qeh") 92 set(cxx_no_exception_flags "-qnoeh") 93 # Until version 9.0, Visual Age doesn't define a macro to indicate 94 # whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI 95 # explicitly. 96 set(cxx_no_rtti_flags "-qnortti -DGTEST_HAS_RTTI=0") 97endif() 98 99if (CMAKE_USE_PTHREADS_INIT) # The pthreads library is available. 100 set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=1") 101endif() 102 103# For building gtest's own tests and samples. 104set(cxx_exception "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_exception_flags}") 105set(cxx_no_exception 106 "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_no_exception_flags}") 107set(cxx_default "${cxx_exception}") 108set(cxx_no_rtti "${cxx_default} ${cxx_no_rtti_flags}") 109set(cxx_use_own_tuple "${cxx_default} -DGTEST_USE_OWN_TR1_TUPLE=1") 110 111# For building the gtest libraries. 112set(cxx_strict "${cxx_default} ${cxx_strict_flags}") 113 114######################################################################## 115# 116# Defines the gtest & gtest_main libraries. User tests should link 117# with one of them. 118function(cxx_library_with_type name type cxx_flags) 119 # type can be either STATIC or SHARED to denote a static or shared library. 120 # ARGN refers to additional arguments after 'cxx_flags'. 121 add_library(${name} ${type} ${ARGN}) 122 set_target_properties(${name} 123 PROPERTIES 124 COMPILE_FLAGS "${cxx_flags}") 125 if (CMAKE_USE_PTHREADS_INIT) 126 target_link_libraries(${name} ${CMAKE_THREAD_LIBS_INIT}) 127 endif() 128endfunction() 129 130function(cxx_static_library name cxx_flags) 131 cxx_library_with_type(${name} STATIC "${cxx_flags}" ${ARGN}) 132endfunction() 133 134function(cxx_shared_library name cxx_flags) 135 cxx_library_with_type(${name} SHARED "${cxx_flags}" ${ARGN}) 136endfunction() 137 138function(cxx_library name cxx_flags) 139 # TODO(vladl@google.com): Make static/shared a user option. 140 cxx_static_library(${name} "${cxx_flags}" ${ARGN}) 141endfunction() 142 143# Static versions of Google Test libraries. We build them using more 144# strict warnings than what are used for other targets, to ensure that 145# gtest can be compiled by a user aggressive about warnings. 146cxx_static_library(gtest "${cxx_strict}" src/gtest-all.cc) 147cxx_static_library(gtest_main "${cxx_strict}" src/gtest_main.cc) 148target_link_libraries(gtest_main gtest) 149 150######################################################################## 151# 152# Samples on how to link user tests with gtest or gtest_main. 153# 154# They are not built by default. To build them, set the 155# build_gtest_samples option to ON. You can do it by running ccmake 156# or specifying the -Dbuild_gtest_samples=ON flag when running cmake. 157 158option(build_gtest_samples "Build gtest's sample programs." OFF) 159 160# cxx_executable_with_flags(name cxx_flags lib srcs...) 161# 162# creates a named C++ executable that depends on the given library and 163# is built from the given source files with the given compiler flags. 164function(cxx_executable_with_flags name cxx_flags lib) 165 add_executable(${name} ${ARGN}) 166 if (cxx_flags) 167 set_target_properties(${name} 168 PROPERTIES 169 COMPILE_FLAGS "${cxx_flags}") 170 endif() 171 target_link_libraries(${name} ${lib}) 172endfunction() 173 174# cxx_executable(name dir lib srcs...) 175# 176# creates a named target that depends on the given lib and is built 177# from the given source files. dir/name.cc is implicitly included in 178# the source file list. 179function(cxx_executable name dir lib) 180 cxx_executable_with_flags( 181 ${name} "${cxx_default}" ${lib} "${dir}/${name}.cc" ${ARGN}) 182endfunction() 183 184if (build_gtest_samples) 185 cxx_executable(sample1_unittest samples gtest_main samples/sample1.cc) 186 cxx_executable(sample2_unittest samples gtest_main samples/sample2.cc) 187 cxx_executable(sample3_unittest samples gtest_main) 188 cxx_executable(sample4_unittest samples gtest_main samples/sample4.cc) 189 cxx_executable(sample5_unittest samples gtest_main samples/sample1.cc) 190 cxx_executable(sample6_unittest samples gtest_main) 191 cxx_executable(sample7_unittest samples gtest_main) 192 cxx_executable(sample8_unittest samples gtest_main) 193 cxx_executable(sample9_unittest samples gtest) 194 cxx_executable(sample10_unittest samples gtest) 195endif() 196 197######################################################################## 198# 199# Google Test's own tests. 200# 201# You can skip this section if you aren't interested in testing 202# Google Test itself. 203# 204# Most of the tests are not built by default. To build them, set the 205# build_all_gtest_tests option to ON. You can do it by running ccmake 206# or specifying the -Dbuild_all_gtest_tests=ON flag when running cmake. 207 208option(build_all_gtest_tests "Build all of gtest's own tests." OFF) 209 210# This must be set in the root directory for the tests to be run by 211# 'make test' or ctest. 212enable_testing() 213 214# Sets PYTHONINTERP_FOUND and PYTHON_EXECUTABLE. 215find_package(PythonInterp) 216 217############################################################ 218# C++ tests built with standard compiler flags. 219 220# cxx_test_with_flags(name cxx_flags libs srcs...) 221# 222# creates a named C++ test that depends on the given libs and is built 223# from the given source files with the given compiler flags. 224function(cxx_test_with_flags name cxx_flags libs) 225 add_executable(${name} ${ARGN}) 226 set_target_properties(${name} 227 PROPERTIES 228 COMPILE_FLAGS "${cxx_flags}") 229 # To support mixing linking in static and dynamic libraries, link each 230 # library in with an extra call to target_link_libraries. 231 foreach (lib "${libs}") 232 target_link_libraries(${name} ${lib}) 233 endforeach() 234 add_test(${name} ${name}) 235endfunction() 236 237# cxx_test(name libs srcs...) 238# 239# creates a named test target that depends on the given libs and is 240# built from the given source files. Unlike cxx_test_with_flags, 241# test/name.cc is already implicitly included in the source file list. 242function(cxx_test name libs) 243 cxx_test_with_flags("${name}" "${cxx_default}" "${libs}" 244 "test/${name}.cc" ${ARGN}) 245endfunction() 246 247cxx_test(gtest_unittest gtest_main) 248 249if (build_all_gtest_tests) 250 cxx_test(gtest-death-test_test gtest_main) 251 cxx_test(gtest_environment_test gtest) 252 cxx_test(gtest-filepath_test gtest_main) 253 cxx_test(gtest-linked_ptr_test gtest_main) 254 cxx_test(gtest-listener_test gtest_main) 255 cxx_test(gtest_main_unittest gtest_main) 256 cxx_test(gtest-message_test gtest_main) 257 cxx_test(gtest_no_test_unittest gtest) 258 cxx_test(gtest-options_test gtest_main) 259 cxx_test(gtest-param-test_test gtest 260 test/gtest-param-test2_test.cc) 261 cxx_test(gtest-port_test gtest_main) 262 cxx_test(gtest_pred_impl_unittest gtest_main) 263 cxx_test(gtest_prod_test gtest_main 264 test/production.cc) 265 cxx_test(gtest_repeat_test gtest) 266 cxx_test(gtest_sole_header_test gtest_main) 267 cxx_test(gtest_stress_test gtest) 268 cxx_test(gtest-test-part_test gtest_main) 269 cxx_test(gtest_throw_on_failure_ex_test gtest) 270 cxx_test(gtest-typed-test_test gtest_main 271 test/gtest-typed-test2_test.cc) 272 cxx_test(gtest-unittest-api_test gtest) 273endif() 274 275############################################################ 276# C++ tests built with non-standard compiler flags. 277 278if (build_all_gtest_tests) 279 cxx_library(gtest_no_exception "${cxx_no_exception}" 280 src/gtest-all.cc) 281 cxx_library(gtest_main_no_rtti "${cxx_no_rtti}" 282 src/gtest-all.cc src/gtest_main.cc) 283 284 cxx_test_with_flags(gtest_no_rtti_unittest "${cxx_no_rtti}" 285 gtest_main_no_rtti test/gtest_unittest.cc) 286 287 set(cxx_use_shared_gtest "${cxx_default} -DGTEST_LINKED_AS_SHARED_LIBRARY=1") 288 set(cxx_build_shared_gtest "${cxx_default} -DGTEST_CREATE_SHARED_LIBRARY=1") 289 if (MSVC) 290 # Disables the "class 'X' needs to have dll-interface to be used 291 # by clients of class 'Y'" warning. This particularly concerns generic 292 # classes like vector that MS doesn't mark as exported. 293 set(cxx_use_shared_gtest "${cxx_use_shared_gtest} -wd4251") 294 set(cxx_build_shared_gtest "${cxx_build_shared_gtest} -wd4251") 295 endif() 296 297 cxx_shared_library(gtest_dll "${cxx_build_shared_gtest}" 298 src/gtest-all.cc) 299 300 # TODO(vladl): This and the next tests may not run in the hermetic 301 # environment on Windows. Re-evaluate and possibly make them 302 # platform-conditional after implementing hermetic builds. 303 cxx_executable_with_flags(gtest_dll_test_ "${cxx_use_shared_gtest}" 304 gtest_dll test/gtest_all_test.cc) 305 306 if (NOT(MSVC AND (MSVC_VERSION EQUAL 1600))) 307 # The C++ Standard specifies tuple_element<int, class>. 308 # Yet MSVC 10's <utility> declares tuple_element<size_t, class>. 309 # That declaration conflicts with our own standard-conforming 310 # tuple implementation. Therefore using our own tuple with 311 # MSVC 10 doesn't compile. 312 cxx_library(gtest_main_use_own_tuple "${cxx_use_own_tuple}" 313 src/gtest-all.cc src/gtest_main.cc) 314 315 cxx_test_with_flags(gtest-tuple_test "${cxx_use_own_tuple}" 316 gtest_main_use_own_tuple test/gtest-tuple_test.cc) 317 318 cxx_test_with_flags(gtest_use_own_tuple_test "${cxx_use_own_tuple}" 319 gtest_main_use_own_tuple 320 test/gtest-param-test_test.cc test/gtest-param-test2_test.cc) 321 endif() 322 323endif() 324 325############################################################ 326# Python tests. 327 328# py_test(name) 329# 330# creates a Python test with the given name whose main module is in 331# test/name.py. It does nothing if Python is not installed. 332function(py_test name) 333 if (PYTHONINTERP_FOUND) 334 # ${gtest_BINARY_DIR} is known at configuration time, so we can 335 # directly bind it from cmake. ${CTEST_CONFIGURATION_TYPE} is known 336 # only at ctest runtime (by calling ctest -c <Configuration>), so 337 # we have to escape $ to delay variable substitution here. 338 add_test(${name} 339 ${PYTHON_EXECUTABLE} ${gtest_SOURCE_DIR}/test/${name}.py 340 --gtest_build_dir=${gtest_BINARY_DIR}/\${CTEST_CONFIGURATION_TYPE}) 341 endif() 342endfunction() 343 344if (build_all_gtest_tests) 345 cxx_executable(gtest_break_on_failure_unittest_ test gtest) 346 py_test(gtest_break_on_failure_unittest) 347 348 cxx_executable(gtest_color_test_ test gtest) 349 py_test(gtest_color_test) 350 351 cxx_executable(gtest_env_var_test_ test gtest) 352 py_test(gtest_env_var_test) 353 354 cxx_executable(gtest_filter_unittest_ test gtest) 355 py_test(gtest_filter_unittest) 356 357 cxx_executable(gtest_help_test_ test gtest_main) 358 py_test(gtest_help_test) 359 360 cxx_executable(gtest_list_tests_unittest_ test gtest) 361 py_test(gtest_list_tests_unittest) 362 363 cxx_executable(gtest_output_test_ test gtest) 364 py_test(gtest_output_test) 365 366 cxx_executable(gtest_shuffle_test_ test gtest) 367 py_test(gtest_shuffle_test) 368 369 cxx_executable(gtest_throw_on_failure_test_ test gtest_no_exception) 370 set_target_properties(gtest_throw_on_failure_test_ 371 PROPERTIES 372 COMPILE_FLAGS "${cxx_no_exception}") 373 py_test(gtest_throw_on_failure_test) 374 375 cxx_executable(gtest_uninitialized_test_ test gtest) 376 py_test(gtest_uninitialized_test) 377 378 cxx_executable(gtest_xml_outfile1_test_ test gtest_main) 379 cxx_executable(gtest_xml_outfile2_test_ test gtest_main) 380 py_test(gtest_xml_outfiles_test) 381 382 cxx_executable(gtest_xml_output_unittest_ test gtest) 383 py_test(gtest_xml_output_unittest) 384endif() 385