Companion

If this flag is given, stdin of the child process is shared with stdin of its parent process. It is redirected to /dev/null otherwise.

Redirect stderr of the test child to /dev/null so it cannot be observed on the console during test runs. The actual output is still captured though to allow later tests with g_test_trap_assert_stderr().

Redirect stdout of the test child to /dev/null so it cannot be observed on the console during test runs. The actual output is still captured though to allow later tests with g_test_trap_assert_stdout().