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FindGTest: Add target for gmock library

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`googlemock` has been absorbed into the
[googletest](https://github.com/google/googletest) project and is built
and installed from the same source tree.

As GTest may be built with or without GMock, skip GMock if it is not
present.

Do not provide result variables for GMock.  They are not provided by
upstream GTest's CMake Package Configuration File.

Also update the test case to cover linking to `GTest::gmock`.
This commit is contained in:
Eero Aaltonen
2021-10-17 17:13:07 +03:00
committed by Brad King
parent eb9991ad62
commit 50bf457a0d
3 changed files with 63 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
Help/release/dev/FindGTest-target-for-gmock.rst Normal file
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@@ -0,0 +1,4 @@
FindGTest-target-for-gmock
--------------------------
* The :module:`FindGTest` module now provides a target for GMock, if found.

56
Modules/FindGTest.cmake
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@@ -22,6 +22,14 @@ Imported targets
``GTest::gtest_main``
The Google Test ``gtest_main`` library, if found
.. versionadded:: 3.23
``GTest::gmock``
The Google Mock ``gmock`` library, if found; adds Thread::Thread
automatically
``GTest::gmock_main``
The Google Mock ``gmock_main`` library, if found
.. deprecated:: 3.20
For backwards compatibility, this module defines additionally the
following deprecated :prop_tgt:`IMPORTED` targets (available since 3.5):
@@ -32,7 +40,6 @@ Imported targets
``GTest::Main``
The Google Test ``gtest_main`` library, if found
Result variables
^^^^^^^^^^^^^^^^
@@ -245,15 +252,29 @@ if(MSVC AND GTEST_MSVC_SEARCH STREQUAL "MD")
__gtest_find_library(GTEST_LIBRARY_DEBUG gtest-mdd gtestd)
__gtest_find_library(GTEST_MAIN_LIBRARY gtest_main-md gtest_main)
__gtest_find_library(GTEST_MAIN_LIBRARY_DEBUG gtest_main-mdd gtest_maind)
__gtest_find_library(GMOCK_LIBRARY gmock-md gmock)
__gtest_find_library(GMOCK_LIBRARY_DEBUG gmock-mdd gmockd)
__gtest_find_library(GMOCK_MAIN_LIBRARY gmock_main-md gmock_main)
__gtest_find_library(GMOCK_MAIN_LIBRARY_DEBUG gmock_main-mdd gmock_maind)
else()
__gtest_find_library(GTEST_LIBRARY gtest)
__gtest_find_library(GTEST_LIBRARY_DEBUG gtestd)
__gtest_find_library(GTEST_MAIN_LIBRARY gtest_main)
__gtest_find_library(GTEST_MAIN_LIBRARY_DEBUG gtest_maind)
__gtest_find_library(GMOCK_LIBRARY gmock)
__gtest_find_library(GMOCK_LIBRARY_DEBUG gmockd)
__gtest_find_library(GMOCK_MAIN_LIBRARY gmock_main)
__gtest_find_library(GMOCK_MAIN_LIBRARY_DEBUG gmock_maind)
endif()
FIND_PACKAGE_HANDLE_STANDARD_ARGS(GTest DEFAULT_MSG GTEST_LIBRARY GTEST_INCLUDE_DIR GTEST_MAIN_LIBRARY)
if(GMOCK_LIBRARY AND GMOCK_MAIN_LIBRARY)
set(GMock_FOUND True)
else()
set(GMock_FOUND False)
endif()
if(GTest_FOUND)
set(GTEST_INCLUDE_DIRS ${GTEST_INCLUDE_DIR})
__gtest_append_debugs(GTEST_LIBRARIES GTEST_LIBRARY)
@@ -292,3 +313,36 @@ if(GTest_FOUND)
__gtest_define_backwards_compatible_library_targets()
endif()
if(GMock_FOUND)
if(NOT TARGET GTest::gmock)
__gtest_determine_library_type(GMOCK_LIBRARY)
add_library(GTest::gmock ${GMOCK_LIBRARY_TYPE} IMPORTED)
set(_gmock_link_libraries "GTest::gtest")
if(TARGET Threads::Threads)
list(APPEND _gmock_link_libraries Threads::Threads)
endif()
set_target_properties(GTest::gmock PROPERTIES
INTERFACE_LINK_LIBRARIES "${_gmock_link_libraries}")
if(GMOCK_LIBRARY_TYPE STREQUAL "SHARED")
set_target_properties(GTest::gmock PROPERTIES
INTERFACE_COMPILE_DEFINITIONS "GMOCK_LINKED_AS_SHARED_LIBRARY=1")
endif()
if(GTEST_INCLUDE_DIRS)
set_target_properties(GTest::gmock PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GTEST_INCLUDE_DIRS}")
endif()
__gtest_import_library(GTest::gmock GMOCK_LIBRARY "")
__gtest_import_library(GTest::gmock GMOCK_LIBRARY "RELEASE")
__gtest_import_library(GTest::gmock GMOCK_LIBRARY "DEBUG")
endif()
if(NOT TARGET GTest::gmock_main)
__gtest_determine_library_type(GMOCK_MAIN_LIBRARY)
add_library(GTest::gmock_main ${GMOCK_MAIN_LIBRARY_TYPE} IMPORTED)
set_target_properties(GTest::gmock_main PROPERTIES
INTERFACE_LINK_LIBRARIES "GTest::gmock")
__gtest_import_library(GTest::gmock_main GMOCK_MAIN_LIBRARY "")
__gtest_import_library(GTest::gmock_main GMOCK_MAIN_LIBRARY "RELEASE")
__gtest_import_library(GTest::gmock_main GMOCK_MAIN_LIBRARY "DEBUG")
endif()
endif()

4
Tests/FindGTest/Test/CMakeLists.txt
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@@ -16,3 +16,7 @@ add_executable(test_gtest_var main.cxx)
target_include_directories(test_gtest_var PRIVATE ${GTEST_INCLUDE_DIRS})
target_link_libraries(test_gtest_var PRIVATE ${GTEST_BOTH_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
add_test(NAME test_gtest_var COMMAND test_gtest_var)
add_executable(test_gmock_tgt main.cxx)
target_link_libraries(test_gmock_tgt GTest::gmock_main)
add_test(NAME test_gmock_tgt COMMAND test_gmock_tgt)