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- import pytest
- from parso.grammar import load_grammar
- from parso import utils
- def test_load_inexisting_grammar():
- # This version shouldn't be out for a while, but if we ever do, wow!
- with pytest.raises(NotImplementedError):
- load_grammar(version='15.8')
- # The same is true for very old grammars (even though this is probably not
- # going to be an issue.
- with pytest.raises(NotImplementedError):
- load_grammar(version='1.5')
- @pytest.mark.parametrize(('string', 'result'), [
- ('2', (2, 7)), ('3', (3, 6)), ('1.1', (1, 1)), ('1.1.1', (1, 1)), ('300.1.31', (300, 1))
- ])
- def test_parse_version(string, result):
- assert utils._parse_version(string) == result
- @pytest.mark.parametrize('string', ['1.', 'a', '#', '1.3.4.5'])
- def test_invalid_grammar_version(string):
- with pytest.raises(ValueError):
- load_grammar(version=string)
- def test_grammar_int_version():
- with pytest.raises(TypeError):
- load_grammar(version=3.8)
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