Added gtest as a CMake external project.

Geoffrey Hunter
1 parent 94d8333d
Showing 4 changed files with 52 additions and 4 deletions
.travis.yml
CMakeLists.txt
CMakeLists.txt.in
test/unit/CMakeLists.txt
@@ -14,7 +14,6 @@ addons:
 install:
     - if [ "$CXX" = "g++" ]; then export CXX="g++-5" CC="gcc-5"; fi
     - if [ "$CXX" = "clang++" ]; then export CXX="clang++-3.7" CC="clang-3.7"; fi
-    - sudo apt install libgtest-dev -y
  
 script:
   - ./tools/build.sh
 \ No newline at end of file
@@ -10,7 +10,41 @@ else ()
     message("BUILD_TESTS=FALSE, unit tests will NOT be built.")
 endif ()
  
+#=================================================================================================#
+#========================================= gtest INSTALL =========================================#
+#=================================================================================================#
+
+# Download and unpack googletest at configure time
+configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
+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
+        ${CMAKE_BINARY_DIR}/googletest-build
+        EXCLUDE_FROM_ALL)
+
+# The gtest/gtest_main targets carry header search path
+# dependencies automatically when using CMake 2.8.11 or
+# later. Otherwise we have to add them here ourselves.
+if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+endif()
  
 #=================================================================================================#
 #========================================= This Project ==========================================#
+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
@@ -10,8 +10,8 @@
  
 enable_testing()
 find_package (Threads)
-find_package(GTest REQUIRED)
-message("gtest libraries found at ${GTEST_BOTH_LIBRARIES}")
+#find_package(GTest REQUIRED)
+#message("gtest libraries found at ${GTEST_BOTH_LIBRARIES}")
  
 file(GLOB_RECURSE CppLinuxSerialUnitTests_SRC
         "*.cpp"
@@ -21,7 +21,7 @@ file(GLOB_RECURSE CppLinuxSerialUnitTests_SRC
  
 add_executable(CppLinuxSerialUnitTests ${CppLinuxSerialUnitTests_SRC})
  
-target_link_libraries(CppLinuxSerialUnitTests LINK_PUBLIC CppLinuxSerial ${GTEST_BOTH_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
+target_link_libraries(CppLinuxSerialUnitTests LINK_PUBLIC CppLinuxSerial gtest_main ${CMAKE_THREAD_LIBS_INIT})
  
 # The custom target and custom command below allow the unit tests
 # to be run.