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-rw-r--r--CMake/AbseilHelpers.cmake2
-rw-r--r--CMake/CMakeLists.txt.in15
-rw-r--r--CMake/DownloadGTest.cmake32
-rw-r--r--CMake/README.md32
4 files changed, 78 insertions, 3 deletions
diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index 0520fba..7b6f087 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/CMake/AbseilHelpers.cmake
@@ -139,7 +139,7 @@ function(absl_test)
PRIVATE ${GMOCK_INCLUDE_DIRS} ${GTEST_INCLUDE_DIRS}
)
- add_test(${_NAME}_test ${_NAME}_bin)
+ add_test(${_NAME} ${_NAME}_bin)
endif(BUILD_TESTING)
endfunction()
diff --git a/CMake/CMakeLists.txt.in b/CMake/CMakeLists.txt.in
new file mode 100644
index 0000000..d60a33e
--- /dev/null
+++ b/CMake/CMakeLists.txt.in
@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+ GIT_REPOSITORY https://github.com/google/googletest.git
+ GIT_TAG master
+ SOURCE_DIR "${CMAKE_BINARY_DIR}/googletest-src"
+ BINARY_DIR "${CMAKE_BINARY_DIR}/googletest-build"
+ CONFIGURE_COMMAND ""
+ BUILD_COMMAND ""
+ INSTALL_COMMAND ""
+ TEST_COMMAND ""
+) \ No newline at end of file
diff --git a/CMake/DownloadGTest.cmake b/CMake/DownloadGTest.cmake
new file mode 100644
index 0000000..9d41321
--- /dev/null
+++ b/CMake/DownloadGTest.cmake
@@ -0,0 +1,32 @@
+# Downloads and unpacks googletest at configure time. Based on the instructions
+# at https://github.com/google/googletest/tree/master/googletest#incorporating-into-an-existing-cmake-project
+
+# Download the latest googletest from Github master
+configure_file(
+ ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in
+ googletest-download/CMakeLists.txt
+)
+
+# Configure and build the downloaded googletest source
+execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
+ RESULT_VARIABLE result
+ WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
+if(result)
+ message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+endif()
+
+execute_process(COMMAND ${CMAKE_COMMAND} --build .
+ RESULT_VARIABLE result
+ WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download)
+if(result)
+ message(FATAL_ERROR "Build step for googletest failed: ${result}")
+endif()
+
+# Prevent overriding the parent project's compiler/linker settings on Windows
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+# Add googletest directly to our build. This defines the gtest and gtest_main
+# targets.
+add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
+ ${CMAKE_BINARY_DIR}/googletest-build
+ EXCLUDE_FROM_ALL)
diff --git a/CMake/README.md b/CMake/README.md
index e99340c..79bbe24 100644
--- a/CMake/README.md
+++ b/CMake/README.md
@@ -52,14 +52,42 @@ if(MSVC)
add_definitions(/DNOMINMAX /DWIN32_LEAN_AND_MEAN=1 /D_CRT_SECURE_NO_WARNINGS)
endif()
-add_subdirectory(googletest)
-add_subdirectory(cctz)
add_subdirectory(abseil-cpp)
add_executable(my_exe source.cpp)
target_link_libraries(my_exe absl::base absl::synchronization absl::strings)
```
+### Running Abseil Tests with CMake
+
+Use the `-DABSL_RUN_TESTS=ON` flag to run Abseil tests. Note that if the `-DBUILD_TESTING=OFF` flag is passed then Abseil tests will not be run.
+
+You will need to provide Abseil with a Googletest dependency. There are two
+options for how to do this:
+
+* Use `-DABSL_USE_GOOGLETEST_HEAD`. This will automatically download the latest
+Googletest source into the build directory at configure time. Googletest will
+then be compiled directly alongside Abseil's tests.
+* Manually integrate Googletest with your build. See
+https://github.com/google/googletest/blob/master/googletest/README.md#using-cmake
+for more information on using Googletest in a CMake project.
+
+For example, to run just the Abseil tests, you could use this script:
+
+```
+cd path/to/abseil-cpp
+mkdir build
+cd build
+cmake -DABSL_USE_GOOGLETEST_HEAD=ON -DABSL_RUN_TESTS=ON ..
+make -j
+ctest
+```
+
+Currently, we only run our tests with CMake in a Linux environment, but we are
+working on the rest of our supported platforms. See
+https://github.com/abseil/abseil-cpp/projects/1 and
+https://github.com/abseil/abseil-cpp/issues/109 for more information.
+
### Available Abseil CMake Public Targets
Here's a non-exhaustive list of Abseil CMake public targets: