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bpo-31672: Restore the former behavior when override flags in Template. (#5099)

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Overriding flags to 0 will make the default pattern matching only
lower case letters.
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Serhiy Storchaka 2018-01-04 19:20:11 +02:00 • committed by GitHub
parent 78e24d4415
commit 87be28f4a1
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3 changed files with 21 additions and 11 deletions
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18
Lib/test/test_string.py
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@ -219,6 +219,16 @@ class TestTemplate(unittest.TestCase):
self.assertRaises(KeyError, s.substitute,
dict(who='tim', what='ham'))
def test_regular_templates_with_upper_case(self):
s = Template('$WHO likes ${WHAT} for ${MEAL}')
d = dict(WHO='tim', WHAT='ham', MEAL='dinner')
self.assertEqual(s.substitute(d), 'tim likes ham for dinner')
def test_regular_templates_with_non_letters(self):
s = Template('$_wh0_ likes ${_w_h_a_t_} for ${mea1}')
d = dict(_wh0_='tim', _w_h_a_t_='ham', mea1='dinner')
self.assertEqual(s.substitute(d), 'tim likes ham for dinner')
def test_escapes(self):
eq = self.assertEqual
s = Template('$who likes to eat a bag of $$what worth $$100')
@ -288,6 +298,14 @@ class TestTemplate(unittest.TestCase):
s = PathPattern('$bag.foo.who likes to eat a bag of $bag.what')
self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
def test_flags_override(self):
class MyPattern(Template):
flags = 0
s = MyPattern('$wHO likes ${WHAT} for ${meal}')
d = dict(wHO='tim', WHAT='ham', meal='dinner', w='fred')
self.assertRaises(ValueError, s.substitute, d)
self.assertEqual(s.safe_substitute(d), 'fredHO likes ${WHAT} for dinner')
def test_idpattern_override_inside_outside(self):
# bpo-1198569: Allow the regexp inside and outside braces to be
# different when deriving from Template.