Declaration [src]

g_test_trap_fork (
  guint64 usec_timeout,
  GTestTrapFlags test_trap_flags

Description [src]

Fork the current test program to execute a test case that might not return or that might abort.

If usec_timeout is non-0, the forked test case is aborted and considered failing if its run time exceeds it.

The forking behavior can be configured with the GTestTrapFlags flags.

In the following example, the test code forks, the forked child process produces some sample output and exits successfully. The forking parent process then asserts successful child program termination and validates child program outputs.

  static void
  test_fork_patterns (void)
        g_print ("some stdout text: somagic17\n");
        g_printerr ("some stderr text: semagic43\n");
        exit (0); // successful test run
    g_test_trap_assert_passed ();
    g_test_trap_assert_stdout ("*somagic17*");
    g_test_trap_assert_stderr ("*semagic43*");
Available since:2.16
Deprecated since:None

This function is implemented only on Unix platforms, and is not always reliable due to problems inherent in fork-without-exec. Use g_test_trap_subprocess() instead.


usec_timeout guint64

Timeout for the forked test in micro seconds.

test_trap_flags GTestTrapFlags

Flags to modify forking behaviour.

Return value

Returns: gboolean

TRUE for the forked child and FALSE for the executing parent process.