ctest 不能用简单的命令运行答案

【问题标题】：ctest cannot run with simple commandctest 不能用简单的命令运行
【发布时间】：2017-12-29 00:34:23
【问题描述】：

我有 ctest 设置，并且可以很好地处理我为该项目构建的所有可执行文件。问题是我想用系统命令添加一些测试，它与解决方案中的程序无关，我无法通过 ctest 运行它。

我添加了一个简单的测试如下，它只是运行命令echo：

add_test(NAME toto_test COMMAND echo bla bla bla)

然后当我运行 ctest 时，我得到了错误

Start  1: toto_test
Could not find executable echo
Looked in the following places:
echo
echo.exe
Release/echo
Release/echo.exe
Release/echo
Release/echo.exe
Unable to find executable: echo
1/10 Test  #1: toto_test ........................***Not Run   0.00 sec

The following tests FAILED:
      1 - toto_test (Not Run)
Errors while running CTest

当我使用详细选项运行 ctest 时，我得到了

Constructing a list of tests
Done constructing a list of tests
Updating test list for fixtures
Added 0 tests to meet fixture requirements
Checking test dependency graph...
Checking test dependency graph end
test 1
    Start 1: toto_test
Could not find executable echo
Looked in the following places:
echo
echo.exe
Release/echo
Release/echo.exe
Release/echo
Release/echo.exe

1: Test command:  "bla" "bla" "bla"
Unable to find executable: echo
1/1 Test #1: toto_test ........................***Not Run   0.00 sec

0% tests passed, 1 tests failed out of 1

Total Test time (real) =   0.02 sec

The following tests FAILED:
      1 - toto_test (Not Run)
Errors while running CTest

有人可以帮忙吗。非常感谢

【问题讨论】：

你应该试试FIND_PROGRAM() 或${CMAKE_COMMAND} -E echo 会更便携

标签： cmake ctest

【解决方案1】：

我找到了方法。对于使用外部程序运行测试的一般目的，请使用 add_custom_target，然后在运行测试时使用 ${CMAKE_COMMAND} 构建此目标：

add_custom_target(run_toto COMMAND echo bla bla bla)
add_test(NAME test_toto COMMAND ${CMAKE_COMMAND} --build . --target run_toto)

【讨论】：