CMake/Tests/RunCMake/RunCMake.cmake
Brad King 42a81e7119 Add stronger infrastructure for CMake-only tests
The CMakeOnly directory added by commit 9a20abf0 (Add infrastructure for
CMake-only tests, 2012-01-11) was sufficient only for tests that always
run CMake to successfully configure a project.  Later commit eeaaffcb
(find_package: Test error and warning messages in failure cases,
2012-02-28) added a sample test that covers failure cases.

Generalize the above to create new "RunCMake" test infrastructure that
can run CMake multiple times for a single project with different
variations and check for expected result/stdout/stderr.  Allow for both
successful and failing CMake project configuration cases.  This will be
useful to test error messages and failure behavior.
2012-03-12 09:33:21 -04:00

70 lines
2.3 KiB
CMake

foreach(arg
RunCMake_GENERATOR
RunCMake_SOURCE_DIR
RunCMake_BINARY_DIR
)
if(NOT DEFINED ${arg})
message(FATAL_ERROR "${arg} not given!")
endif()
endforeach()
function(run_cmake test)
set(top_src "${RunCMake_SOURCE_DIR}")
set(top_bin "${RunCMake_BINARY_DIR}")
if(EXISTS ${top_src}/${test}-result.txt)
file(READ ${top_src}/${test}-result.txt expect_result)
string(REGEX REPLACE "\n+$" "" expect_result "${expect_result}")
else()
set(expect_result 0)
endif()
foreach(o out err)
if(EXISTS ${top_src}/${test}-std${o}.txt)
file(READ ${top_src}/${test}-std${o}.txt expect_std${o})
string(REGEX REPLACE "\n+$" "" expect_std${o} "${expect_std${o}}")
else()
unset(expect_std${o})
endif()
endforeach()
set(source_dir "${top_src}")
set(binary_dir "${top_bin}/${test}-build")
file(REMOVE_RECURSE "${binary_dir}")
file(MAKE_DIRECTORY "${binary_dir}")
execute_process(
COMMAND ${CMAKE_COMMAND} "${source_dir}"
-G "${RunCMake_GENERATOR}" -DRunCMake_TEST=${test}
WORKING_DIRECTORY "${binary_dir}"
OUTPUT_VARIABLE actual_stdout
ERROR_VARIABLE actual_stderr
RESULT_VARIABLE actual_result
)
set(msg "")
if(NOT "${actual_result}" STREQUAL "${expect_result}")
set(msg "${msg}Result is [${actual_result}], not [${expect_result}].\n")
endif()
foreach(o out err)
string(REGEX REPLACE "\n+$" "" actual_std${o} "${actual_std${o}}")
set(expect_${o} "")
if(DEFINED expect_std${o})
if(NOT "${actual_std${o}}" MATCHES "${expect_std${o}}")
string(REGEX REPLACE "\n" "\n expect-${o}> " expect_${o}
" expect-${o}> ${expect_std${o}}")
set(expect_${o} "Expected std${o} to match:\n${expect_${o}}\n")
set(msg "${msg}std${o} does not match that expected.\n")
endif()
endif()
endforeach()
if(msg)
string(REGEX REPLACE "\n" "\n actual-out> " actual_out " actual-out> ${actual_stdout}")
string(REGEX REPLACE "\n" "\n actual-err> " actual_err " actual-err> ${actual_stderr}")
message(SEND_ERROR "${test} - FAILED:\n"
"${msg}"
"${expect_out}"
"Actual stdout:\n${actual_out}\n"
"${expect_err}"
"Actual stderr:\n${actual_err}\n"
)
else()
message(STATUS "${test} - PASSED")
endif()
endfunction()