使用GoogleTest和CMake对C库进行单元测试

Question

我似乎无法获得一个我正在构建的库,以便与我的GoogleTest单元测试二进制文件正确链接.它在构建的链接阶段失败:

Linking CXX executable ../../target/unit_tests
cd /Users/ebenoist/development/mylib/build/test && /usr/local/Cellar/cmake/2.8.12.2/bin/cmake -E cmake_link_script      CMakeFiles/unit_tests.dir/link.txt --verbose=0
Undefined symbols for architecture x86_64:
  "a_function_in_my_lib(int, int, int)", referenced from:
      test_my_lib_AssertionTrue_Test::TestBody() in unit_tests.cc.o

我有一个具有以下结构的项目:

|-- src
|   | -- mylib.c
|   | -- mylib.h
|   | -- mylibcli.c
|-- build
|   | ... CMakeStuff
|-- target
|   | -- mylib.a
|-- test
|   | -- unit_tests.cc

我的测试目录中的CMakeList.txt如下所示:

include_directories(${gtest_SOURCE_DIR}/include ${COMMON_INCLUDES})
set(test_sources unit_tests.cc)

add_executable(unit_tests ${test_sources})
target_link_libraries(unit_tests gtest gtest_main mylib)

add_test(unit-tests unit_tests)

我知道函数存在且库编译得很好,因为我有一个可执行文件,它是针对我的src /中的库构建的.

如何让我的单元测试正确链接到我正在构建的库？

更多参考:

src /中的CMakeLists.txt

include_directories(${COMMON_INCLUDES})

# LIBRARY
add_library(mylib STATIC mylib.c)

# CLI TOOL
add_executable(mylibcli mylibcli.c)
target_link_libraries (mylibcli mylib)

/中的CMakeLists.txt

cmake_minimum_required (VERSION 2.6)

project (mylib)

enable_testing()

option(test "Build all tests." OFF)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++")

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../target)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../target)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../target)

set(COMMON_INCLUDES ${PROJECT_SOURCE_DIR}/src)

add_subdirectory(src)

if (test)
  add_subdirectory(vendor/gtest-1.7.0)
  add_subdirectory(test)
endif()

Answer 1

您似乎正在编译 32 位二进制文​​件（“-arch x86_64”选项无处可见），但尝试使用 64 位版本的 Google Test。