def test_colorize_text_calls_all_sub_methods(heading, indent, backticks):
    """colorize_text should call all of the helper colorize methods."""
    colorizer = color.EgColorizer(None)
    text = 'text'
    actual = colorizer.colorize_text(text)
    heading.assert_called_once_with(text)
    indent.assert_called_once_with('text-heading')
    backticks.assert_called_once_with('text-heading-indent')
    assert 'text-heading-indent-backticks' == actual
colorize_text should call all of the helper colorize methods.
test/color_test.py