def test_image_params_valign_invalid(self):
        _, params = build_hook_params_default('valign=zzz')
        assert 'valign' not in params, 'Vertical align is present in params'
Run a subprocess, but connect by pipes rather than pty.
dataset/ETHPy150Open mozilla/kitsune/kitsune/sumo/tests/test_parser.py/TestWikiParser.test_image_params_valign_invalid--crossover with--dataset/ETHPy150Open kdart/pycopia/QA/pycopia/remote/PosixServer.py/PosixAgent.pipe