FAIL_REGULAR_EXPRESSION
-----------------------

If the output matches this regular expression the test will fail,
regardless of the process exit code.

If set, if the output matches one of specified regular expressions,
the test will fail.  Example:

.. code-block:: cmake

  set_tests_properties(mytest PROPERTIES
    FAIL_REGULAR_EXPRESSION "[^a-z]Error;ERROR;Failed"
  )

``FAIL_REGULAR_EXPRESSION`` expects a list of regular expressions.

See also the :prop_test:`PASS_REGULAR_EXPRESSION` and
:prop_test:`SKIP_REGULAR_EXPRESSION` test properties.