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Update test_string.py from Cpython v3.11.2 #4751

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merged 1 commit into from
Mar 25, 2023
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Update test_string.py from Cpython v3.11.2 #4751

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55 changes: 55 additions & 0 deletions Lib/test/test_string.py
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Original file line number Diff line number Diff line change
Expand Up @@ -475,6 +475,61 @@ class PieDelims(Template):
self.assertEqual(s.substitute(dict(who='tim', what='ham')),
'tim likes to eat a bag of ham worth $100')

# TODO: RUSTPYTHON
@unittest.expectedFailure
Comment on lines +478 to +479
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@youknowone This should have been broken out into a separate commit.

def test_is_valid(self):
eq = self.assertEqual
s = Template('$who likes to eat a bag of ${what} worth $$100')
self.assertTrue(s.is_valid())

s = Template('$who likes to eat a bag of ${what} worth $100')
self.assertFalse(s.is_valid())

# if the pattern has an unrecognized capture group,
# it should raise ValueError like substitute and safe_substitute do
class BadPattern(Template):
pattern = r"""
(?P<badname>.*) |
(?P<escaped>@{2}) |
@(?P<named>[_a-z][._a-z0-9]*) |
@{(?P<braced>[_a-z][._a-z0-9]*)} |
(?P<invalid>@) |
"""
s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what')
self.assertRaises(ValueError, s.is_valid)

# TODO: RUSTPYTHON
@unittest.expectedFailure
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@youknowone This should have been broken out into a separate commit.

def test_get_identifiers(self):
eq = self.assertEqual
raises = self.assertRaises
s = Template('$who likes to eat a bag of ${what} worth $$100')
ids = s.get_identifiers()
eq(ids, ['who', 'what'])

# repeated identifiers only included once
s = Template('$who likes to eat a bag of ${what} worth $$100; ${who} likes to eat a bag of $what worth $$100')
ids = s.get_identifiers()
eq(ids, ['who', 'what'])

# invalid identifiers are ignored
s = Template('$who likes to eat a bag of ${what} worth $100')
ids = s.get_identifiers()
eq(ids, ['who', 'what'])

# if the pattern has an unrecognized capture group,
# it should raise ValueError like substitute and safe_substitute do
class BadPattern(Template):
pattern = r"""
(?P<badname>.*) |
(?P<escaped>@{2}) |
@(?P<named>[_a-z][._a-z0-9]*) |
@{(?P<braced>[_a-z][._a-z0-9]*)} |
(?P<invalid>@) |
"""
s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what')
self.assertRaises(ValueError, s.get_identifiers)


if __name__ == '__main__':
unittest.main()