File: diagram_test.py

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python-tatsu 5.13.1%2Bds-2
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import unittest

from tatsu.tool import compile


class DiagramTests(unittest.TestCase):
    def test_dot(self):
        grammar = """
            start = "foo\\nbar" $;
        """
        try:
            from tatsu.diagrams import draw
        except ImportError:
            return

        m = compile(grammar, 'Diagram')
        draw('tmp/diagram.png', m)


def suite():
    return unittest.TestLoader().loadTestsFromTestCase(DiagramTests)


def main():
    unittest.TextTestRunner(verbosity=2).run(suite())


if __name__ == '__main__':
    main()