mirror of
https://github.com/python/cpython.git
synced 2024-12-29 19:55:17 +08:00
241 lines
9.0 KiB
Python
241 lines
9.0 KiB
Python
# Copyright (C) 2004 Python Software Foundation
|
|
# Author: barry@python.org (Barry Warsaw)
|
|
# License: http://www.opensource.org/licenses/PythonSoftFoundation.php
|
|
|
|
import unittest
|
|
from string import Template
|
|
|
|
|
|
class Bag:
|
|
pass
|
|
|
|
class Mapping:
|
|
def __getitem__(self, name):
|
|
obj = self
|
|
for part in name.split('.'):
|
|
try:
|
|
obj = getattr(obj, part)
|
|
except AttributeError:
|
|
raise KeyError(name)
|
|
return obj
|
|
|
|
|
|
class TestTemplate(unittest.TestCase):
|
|
def test_regular_templates(self):
|
|
s = Template('$who likes to eat a bag of $what worth $$100')
|
|
self.assertEqual(s.substitute(dict(who='tim', what='ham')),
|
|
'tim likes to eat a bag of ham worth $100')
|
|
self.assertRaises(KeyError, s.substitute, dict(who='tim'))
|
|
|
|
def test_regular_templates_with_braces(self):
|
|
s = Template('$who likes ${what} for ${meal}')
|
|
d = dict(who='tim', what='ham', meal='dinner')
|
|
self.assertEqual(s.substitute(d), 'tim likes ham for dinner')
|
|
self.assertRaises(KeyError, s.substitute,
|
|
dict(who='tim', what='ham'))
|
|
|
|
def test_escapes(self):
|
|
eq = self.assertEqual
|
|
s = Template('$who likes to eat a bag of $$what worth $$100')
|
|
eq(s.substitute(dict(who='tim', what='ham')),
|
|
'tim likes to eat a bag of $what worth $100')
|
|
s = Template('$who likes $$')
|
|
eq(s.substitute(dict(who='tim', what='ham')), 'tim likes $')
|
|
|
|
def test_invalid(self):
|
|
class MyPattern(Template):
|
|
pattern = r"""
|
|
(?:
|
|
(?P<invalid>) |
|
|
(?P<escaped>%(delim)s) |
|
|
@(?P<named>%(id)s) |
|
|
@{(?P<braced>%(id)s)}
|
|
)
|
|
"""
|
|
s = MyPattern('$')
|
|
self.assertRaises(ValueError, s.substitute, dict())
|
|
|
|
def test_percents(self):
|
|
eq = self.assertEqual
|
|
s = Template('%(foo)s $foo ${foo}')
|
|
d = dict(foo='baz')
|
|
eq(s.substitute(d), '%(foo)s baz baz')
|
|
eq(s.safe_substitute(d), '%(foo)s baz baz')
|
|
|
|
def test_stringification(self):
|
|
eq = self.assertEqual
|
|
s = Template('tim has eaten $count bags of ham today')
|
|
d = dict(count=7)
|
|
eq(s.substitute(d), 'tim has eaten 7 bags of ham today')
|
|
eq(s.safe_substitute(d), 'tim has eaten 7 bags of ham today')
|
|
s = Template('tim has eaten ${count} bags of ham today')
|
|
eq(s.substitute(d), 'tim has eaten 7 bags of ham today')
|
|
|
|
def test_tupleargs(self):
|
|
eq = self.assertEqual
|
|
s = Template('$who ate ${meal}')
|
|
d = dict(who=('tim', 'fred'), meal=('ham', 'kung pao'))
|
|
eq(s.substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')")
|
|
eq(s.safe_substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')")
|
|
|
|
def test_SafeTemplate(self):
|
|
eq = self.assertEqual
|
|
s = Template('$who likes ${what} for ${meal}')
|
|
eq(s.safe_substitute(dict(who='tim')), 'tim likes ${what} for ${meal}')
|
|
eq(s.safe_substitute(dict(what='ham')), '$who likes ham for ${meal}')
|
|
eq(s.safe_substitute(dict(what='ham', meal='dinner')),
|
|
'$who likes ham for dinner')
|
|
eq(s.safe_substitute(dict(who='tim', what='ham')),
|
|
'tim likes ham for ${meal}')
|
|
eq(s.safe_substitute(dict(who='tim', what='ham', meal='dinner')),
|
|
'tim likes ham for dinner')
|
|
|
|
def test_invalid_placeholders(self):
|
|
raises = self.assertRaises
|
|
s = Template('$who likes $')
|
|
raises(ValueError, s.substitute, dict(who='tim'))
|
|
s = Template('$who likes ${what)')
|
|
raises(ValueError, s.substitute, dict(who='tim'))
|
|
s = Template('$who likes $100')
|
|
raises(ValueError, s.substitute, dict(who='tim'))
|
|
|
|
def test_idpattern_override(self):
|
|
class PathPattern(Template):
|
|
idpattern = r'[_a-z][._a-z0-9]*'
|
|
m = Mapping()
|
|
m.bag = Bag()
|
|
m.bag.foo = Bag()
|
|
m.bag.foo.who = 'tim'
|
|
m.bag.what = 'ham'
|
|
s = PathPattern('$bag.foo.who likes to eat a bag of $bag.what')
|
|
self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
|
|
|
|
def test_pattern_override(self):
|
|
class MyPattern(Template):
|
|
pattern = r"""
|
|
(?P<escaped>@{2}) |
|
|
@(?P<named>[_a-z][._a-z0-9]*) |
|
|
@{(?P<braced>[_a-z][._a-z0-9]*)} |
|
|
(?P<invalid>@)
|
|
"""
|
|
m = Mapping()
|
|
m.bag = Bag()
|
|
m.bag.foo = Bag()
|
|
m.bag.foo.who = 'tim'
|
|
m.bag.what = 'ham'
|
|
s = MyPattern('@bag.foo.who likes to eat a bag of @bag.what')
|
|
self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
|
|
|
|
class BadPattern(Template):
|
|
pattern = r"""
|
|
(?P<badname>.*) |
|
|
(?P<escaped>@{2}) |
|
|
@(?P<named>[_a-z][._a-z0-9]*) |
|
|
@{(?P<braced>[_a-z][._a-z0-9]*)} |
|
|
(?P<invalid>@) |
|
|
"""
|
|
s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what')
|
|
self.assertRaises(ValueError, s.substitute, {})
|
|
self.assertRaises(ValueError, s.safe_substitute, {})
|
|
|
|
def test_braced_override(self):
|
|
class MyTemplate(Template):
|
|
pattern = r"""
|
|
\$(?:
|
|
(?P<escaped>$) |
|
|
(?P<named>[_a-z][_a-z0-9]*) |
|
|
@@(?P<braced>[_a-z][_a-z0-9]*)@@ |
|
|
(?P<invalid>) |
|
|
)
|
|
"""
|
|
|
|
tmpl = 'PyCon in $@@location@@'
|
|
t = MyTemplate(tmpl)
|
|
self.assertRaises(KeyError, t.substitute, {})
|
|
val = t.substitute({'location': 'Cleveland'})
|
|
self.assertEqual(val, 'PyCon in Cleveland')
|
|
|
|
def test_braced_override_safe(self):
|
|
class MyTemplate(Template):
|
|
pattern = r"""
|
|
\$(?:
|
|
(?P<escaped>$) |
|
|
(?P<named>[_a-z][_a-z0-9]*) |
|
|
@@(?P<braced>[_a-z][_a-z0-9]*)@@ |
|
|
(?P<invalid>) |
|
|
)
|
|
"""
|
|
|
|
tmpl = 'PyCon in $@@location@@'
|
|
t = MyTemplate(tmpl)
|
|
self.assertEqual(t.safe_substitute(), tmpl)
|
|
val = t.safe_substitute({'location': 'Cleveland'})
|
|
self.assertEqual(val, 'PyCon in Cleveland')
|
|
|
|
def test_unicode_values(self):
|
|
s = Template('$who likes $what')
|
|
d = dict(who='t\xffm', what='f\xfe\fed')
|
|
self.assertEqual(s.substitute(d), 't\xffm likes f\xfe\x0ced')
|
|
|
|
def test_keyword_arguments(self):
|
|
eq = self.assertEqual
|
|
s = Template('$who likes $what')
|
|
eq(s.substitute(who='tim', what='ham'), 'tim likes ham')
|
|
eq(s.substitute(dict(who='tim'), what='ham'), 'tim likes ham')
|
|
eq(s.substitute(dict(who='fred', what='kung pao'),
|
|
who='tim', what='ham'),
|
|
'tim likes ham')
|
|
s = Template('the mapping is $mapping')
|
|
eq(s.substitute(dict(foo='none'), mapping='bozo'),
|
|
'the mapping is bozo')
|
|
eq(s.substitute(dict(mapping='one'), mapping='two'),
|
|
'the mapping is two')
|
|
|
|
def test_keyword_arguments_safe(self):
|
|
eq = self.assertEqual
|
|
raises = self.assertRaises
|
|
s = Template('$who likes $what')
|
|
eq(s.safe_substitute(who='tim', what='ham'), 'tim likes ham')
|
|
eq(s.safe_substitute(dict(who='tim'), what='ham'), 'tim likes ham')
|
|
eq(s.safe_substitute(dict(who='fred', what='kung pao'),
|
|
who='tim', what='ham'),
|
|
'tim likes ham')
|
|
s = Template('the mapping is $mapping')
|
|
eq(s.safe_substitute(dict(foo='none'), mapping='bozo'),
|
|
'the mapping is bozo')
|
|
eq(s.safe_substitute(dict(mapping='one'), mapping='two'),
|
|
'the mapping is two')
|
|
d = dict(mapping='one')
|
|
raises(TypeError, s.substitute, d, {})
|
|
raises(TypeError, s.safe_substitute, d, {})
|
|
|
|
def test_delimiter_override(self):
|
|
eq = self.assertEqual
|
|
raises = self.assertRaises
|
|
class AmpersandTemplate(Template):
|
|
delimiter = '&'
|
|
s = AmpersandTemplate('this &gift is for &{who} &&')
|
|
eq(s.substitute(gift='bud', who='you'), 'this bud is for you &')
|
|
raises(KeyError, s.substitute)
|
|
eq(s.safe_substitute(gift='bud', who='you'), 'this bud is for you &')
|
|
eq(s.safe_substitute(), 'this &gift is for &{who} &')
|
|
s = AmpersandTemplate('this &gift is for &{who} &')
|
|
raises(ValueError, s.substitute, dict(gift='bud', who='you'))
|
|
eq(s.safe_substitute(), 'this &gift is for &{who} &')
|
|
|
|
class PieDelims(Template):
|
|
delimiter = '@'
|
|
s = PieDelims('@who likes to eat a bag of @{what} worth $100')
|
|
self.assertEqual(s.substitute(dict(who='tim', what='ham')),
|
|
'tim likes to eat a bag of ham worth $100')
|
|
|
|
|
|
def test_main():
|
|
from test import support
|
|
test_classes = [TestTemplate,]
|
|
support.run_unittest(*test_classes)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|