EXAMPLE:
        ...
        Then the command output should contain "TEXT"

def step_command_output_should_contain_text(context, text):
    '''
    EXAMPLE:
        ...
        Then the command output should contain "TEXT"
    '''
    expected_text = text
    if "{__WORKDIR__}" in expected_text or "{__CWD__}" in expected_text:
        expected_text = textutil.template_substitute(text,
             __WORKDIR__ = posixpath_normpath(context.workdir),
             __CWD__     = posixpath_normpath(os.getcwd())
        )
    actual_output = context.command_result.output
    with on_assert_failed_print_details(actual_output, expected_text):
        textutil.assert_normtext_should_contain(actual_output, expected_text)