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Diffstat (limited to 'lib/python2.7/test/test_pep292.py')
| -rw-r--r-- | lib/python2.7/test/test_pep292.py | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_pep292.py b/lib/python2.7/test/test_pep292.py new file mode 100644 index 0000000..cb8a244 --- /dev/null +++ b/lib/python2.7/test/test_pep292.py @@ -0,0 +1,193 @@ +# 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_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 $bag.what') + self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham') + + def test_pattern_override(self): + class MyPattern(Template): + pattern = r""" + (?P<escaped>@{2}) | + @(?P<named>[_a-z][._a-z0-9]*) | + @{(?P<braced>[_a-z][._a-z0-9]*)} | + (?P<invalid>@) + """ + m = Mapping() + m.bag = Bag() + m.bag.foo = Bag() + m.bag.foo.who = 'tim' + m.bag.what = 'ham' + s = MyPattern('@bag.foo.who likes to eat a bag of @bag.what') + self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham') + + class BadPattern(Template): + pattern = r""" + (?P<badname>.*) | + (?P<escaped>@{2}) | + @(?P<named>[_a-z][._a-z0-9]*) | + @{(?P<braced>[_a-z][._a-z0-9]*)} | + (?P<invalid>@) | + """ + s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what') + self.assertRaises(ValueError, s.substitute, {}) + self.assertRaises(ValueError, s.safe_substitute, {}) + + def test_unicode_values(self): + s = Template('$who likes $what') + d = dict(who=u't\xffm', what=u'f\xfe\fed') + self.assertEqual(s.substitute(d), u't\xffm likes f\xfe\x0ced') + + def test_keyword_arguments(self): + eq = self.assertEqual + s = Template('$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 test_support + test_classes = [TestTemplate,] + test_support.run_unittest(*test_classes) + + +if __name__ == '__main__': + test_main() |