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PASS_REGULAR_EXPRESSION
-----------------------
The test output (stdout or stderr) must match this regular expression
for the test to pass. The process exit code is ignored. Tests that exceed
the timeout specified by :prop_test:`TIMEOUT` still fail regardless of
``PASS_REGULAR_EXPRESSION``. System-level test failures including
segmentation faults, signal abort, or heap errors may fail the test even
if ``PASS_REGULAR_EXPRESSION`` is matched.
Example:
.. code-block:: cmake
add_test(NAME mytest COMMAND ${CMAKE_COMMAND} -E echo "Passed this test")
set_property(TEST mytest PROPERTY
PASS_REGULAR_EXPRESSION "pass;Passed"
)
``PASS_REGULAR_EXPRESSION`` expects a list of regular expressions.
To run a test that may have a system-level failure, but still pass if
``PASS_REGULAR_EXPRESSION`` matches, use a CMake command to wrap the
executable run. Note that this will prevent automatic handling of the
:prop_tgt:`CROSSCOMPILING_EMULATOR` target property.
.. code-block:: cmake
add_executable(main main.c)
add_test(NAME sigabrt COMMAND ${CMAKE_COMMAND} -E env $<TARGET_FILE:main>)
set_property(TEST sigabrt PROPERTY PROPERTY_REGULAR_EXPRESSION "pass;Passed")
.. code-block:: c
#include <signal.h>
#include <stdio.h>
int main(void){
fprintf(stdout, "Passed\n");
fflush(stdout); /* ensure the output buffer is seen */
raise(SIGABRT);
return 0;
}
See also the :prop_test:`FAIL_REGULAR_EXPRESSION` and
:prop_test:`SKIP_REGULAR_EXPRESSION` test properties.
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