- import unittest, string
-# Copyright (C) 2004 Python Software Foundation
-# Author: barry@python.org (Barry Warsaw)
-# License: http://www.opensource.org/licenses/PythonSoftFoundation.php
-
+ import unittest
++import string
+ from string import Template
- if __name__ == "__main__":
+class ModuleTest(unittest.TestCase):
+
+ def test_attrs(self):
+ # While the exact order of the items in these attributes is not
+ # technically part of the "language spec", in practice there is almost
+ # certainly user code that depends on the order, so de-facto it *is*
+ # part of the spec.
+ self.assertEqual(string.whitespace, ' \t\n\r\x0b\x0c')
+ self.assertEqual(string.ascii_lowercase, 'abcdefghijklmnopqrstuvwxyz')
+ self.assertEqual(string.ascii_uppercase, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')
+ self.assertEqual(string.ascii_letters, string.ascii_lowercase + string.ascii_uppercase)
+ self.assertEqual(string.digits, '0123456789')
+ self.assertEqual(string.hexdigits, string.digits + 'abcdefABCDEF')
+ self.assertEqual(string.octdigits, '01234567')
+ self.assertEqual(string.punctuation, '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~')
+ self.assertEqual(string.printable, string.digits + string.ascii_lowercase + string.ascii_uppercase + string.punctuation + string.whitespace)
+
+ def test_capwords(self):
+ self.assertEqual(string.capwords('abc def ghi'), 'Abc Def Ghi')
+ self.assertEqual(string.capwords('abc\tdef\nghi'), 'Abc Def Ghi')
+ self.assertEqual(string.capwords('abc\t def \nghi'), 'Abc Def Ghi')
+ self.assertEqual(string.capwords('ABC DEF GHI'), 'Abc Def Ghi')
+ self.assertEqual(string.capwords('ABC-DEF-GHI', '-'), 'Abc-Def-Ghi')
+ self.assertEqual(string.capwords('ABC-def DEF-ghi GHI'), 'Abc-def Def-ghi Ghi')
+ self.assertEqual(string.capwords(' aBc DeF '), 'Abc Def')
+ self.assertEqual(string.capwords('\taBc\tDeF\t'), 'Abc Def')
+ self.assertEqual(string.capwords('\taBc\tDeF\t', '\t'), '\tAbc\tDef\t')
+
+ def test_basic_formatter(self):
+ fmt = string.Formatter()
+ self.assertEqual(fmt.format("foo"), "foo")
+ self.assertEqual(fmt.format("foo{0}", "bar"), "foobar")
+ self.assertEqual(fmt.format("foo{1}{0}-{1}", "bar", 6), "foo6bar-6")
+ self.assertRaises(TypeError, fmt.format)
+ self.assertRaises(TypeError, string.Formatter.format)
+
+ def test_format_keyword_arguments(self):
+ fmt = string.Formatter()
+ self.assertEqual(fmt.format("-{arg}-", arg='test'), '-test-')
+ self.assertRaises(KeyError, fmt.format, "-{arg}-")
+ self.assertEqual(fmt.format("-{self}-", self='test'), '-test-')
+ self.assertRaises(KeyError, fmt.format, "-{self}-")
+ self.assertEqual(fmt.format("-{format_string}-", format_string='test'),
+ '-test-')
+ self.assertRaises(KeyError, fmt.format, "-{format_string}-")
+ with self.assertWarnsRegex(DeprecationWarning, "format_string"):
+ self.assertEqual(fmt.format(arg='test', format_string="-{arg}-"),
+ '-test-')
+
+ def test_auto_numbering(self):
+ fmt = string.Formatter()
+ self.assertEqual(fmt.format('foo{}{}', 'bar', 6),
+ 'foo{}{}'.format('bar', 6))
+ self.assertEqual(fmt.format('foo{1}{num}{1}', None, 'bar', num=6),
+ 'foo{1}{num}{1}'.format(None, 'bar', num=6))
+ self.assertEqual(fmt.format('{:^{}}', 'bar', 6),
+ '{:^{}}'.format('bar', 6))
+ self.assertEqual(fmt.format('{:^{}} {}', 'bar', 6, 'X'),
+ '{:^{}} {}'.format('bar', 6, 'X'))
+ self.assertEqual(fmt.format('{:^{pad}}{}', 'foo', 'bar', pad=6),
+ '{:^{pad}}{}'.format('foo', 'bar', pad=6))
+
+ with self.assertRaises(ValueError):
+ fmt.format('foo{1}{}', 'bar', 6)
+
+ with self.assertRaises(ValueError):
+ fmt.format('foo{}{1}', 'bar', 6)
+
+ def test_conversion_specifiers(self):
+ fmt = string.Formatter()
+ self.assertEqual(fmt.format("-{arg!r}-", arg='test'), "-'test'-")
+ self.assertEqual(fmt.format("{0!s}", 'test'), 'test')
+ self.assertRaises(ValueError, fmt.format, "{0!h}", 'test')
+ # issue13579
+ self.assertEqual(fmt.format("{0!a}", 42), '42')
+ self.assertEqual(fmt.format("{0!a}", string.ascii_letters),
+ "'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'")
+ self.assertEqual(fmt.format("{0!a}", chr(255)), "'\\xff'")
+ self.assertEqual(fmt.format("{0!a}", chr(256)), "'\\u0100'")
+
+ def test_name_lookup(self):
+ fmt = string.Formatter()
+ class AnyAttr:
+ def __getattr__(self, attr):
+ return attr
+ x = AnyAttr()
+ self.assertEqual(fmt.format("{0.lumber}{0.jack}", x), 'lumberjack')
+ with self.assertRaises(AttributeError):
+ fmt.format("{0.lumber}{0.jack}", '')
+
+ def test_index_lookup(self):
+ fmt = string.Formatter()
+ lookup = ["eggs", "and", "spam"]
+ self.assertEqual(fmt.format("{0[2]}{0[0]}", lookup), 'spameggs')
+ with self.assertRaises(IndexError):
+ fmt.format("{0[2]}{0[0]}", [])
+ with self.assertRaises(KeyError):
+ fmt.format("{0[2]}{0[0]}", {})
+
+ def test_override_get_value(self):
+ class NamespaceFormatter(string.Formatter):
+ def __init__(self, namespace={}):
+ string.Formatter.__init__(self)
+ self.namespace = namespace
+
+ def get_value(self, key, args, kwds):
+ if isinstance(key, str):
+ try:
+ # Check explicitly passed arguments first
+ return kwds[key]
+ except KeyError:
+ return self.namespace[key]
+ else:
+ string.Formatter.get_value(key, args, kwds)
+
+ fmt = NamespaceFormatter({'greeting':'hello'})
+ self.assertEqual(fmt.format("{greeting}, world!"), 'hello, world!')
+
+
+ def test_override_format_field(self):
+ class CallFormatter(string.Formatter):
+ def format_field(self, value, format_spec):
+ return format(value(), format_spec)
+
+ fmt = CallFormatter()
+ self.assertEqual(fmt.format('*{0}*', lambda : 'result'), '*result*')
+
+
+ def test_override_convert_field(self):
+ class XFormatter(string.Formatter):
+ def convert_field(self, value, conversion):
+ if conversion == 'x':
+ return None
+ return super().convert_field(value, conversion)
+
+ fmt = XFormatter()
+ self.assertEqual(fmt.format("{0!r}:{0!x}", 'foo', 'foo'), "'foo':None")
+
+
+ def test_override_parse(self):
+ class BarFormatter(string.Formatter):
+ # returns an iterable that contains tuples of the form:
+ # (literal_text, field_name, format_spec, conversion)
+ def parse(self, format_string):
+ for field in format_string.split('|'):
+ if field[0] == '+':
+ # it's markup
+ field_name, _, format_spec = field[1:].partition(':')
+ yield '', field_name, format_spec, None
+ else:
+ yield field, None, None, None
+
+ fmt = BarFormatter()
+ self.assertEqual(fmt.format('*|+0:^10s|*', 'foo'), '* foo *')
+
+ def test_check_unused_args(self):
+ class CheckAllUsedFormatter(string.Formatter):
+ def check_unused_args(self, used_args, args, kwargs):
+ # Track which arguments actually got used
+ unused_args = set(kwargs.keys())
+ unused_args.update(range(0, len(args)))
+
+ for arg in used_args:
+ unused_args.remove(arg)
+
+ if unused_args:
+ raise ValueError("unused arguments")
+
+ fmt = CheckAllUsedFormatter()
+ self.assertEqual(fmt.format("{0}", 10), "10")
+ self.assertEqual(fmt.format("{0}{i}", 10, i=100), "10100")
+ self.assertEqual(fmt.format("{0}{i}{1}", 10, 20, i=100), "1010020")
+ self.assertRaises(ValueError, fmt.format, "{0}{i}{1}", 10, 20, i=100, j=0)
+ self.assertRaises(ValueError, fmt.format, "{0}", 10, 20)
+ self.assertRaises(ValueError, fmt.format, "{0}", 10, 20, i=100)
+ self.assertRaises(ValueError, fmt.format, "{i}", 10, 20, i=100)
+
+ def test_vformat_recursion_limit(self):
+ fmt = string.Formatter()
+ args = ()
+ kwargs = dict(i=100)
+ with self.assertRaises(ValueError) as err:
+ fmt._vformat("{i}", args, kwargs, set(), -1)
+ self.assertIn("recursion", str(err.exception))
+
+
++# Template tests (formerly housed in test_pep292.py)
++
+ 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 $$100')
+ self.assertEqual(s.substitute(dict(who='tim', what='ham')),
+ 'tim likes to eat a bag of ham worth $100')
+ self.assertRaises(KeyError, s.substitute, dict(who='tim'))
+ self.assertRaises(TypeError, Template.substitute)
+
+ def test_regular_templates_with_braces(self):
+ s = Template('$who likes ${what} for ${meal}')
+ d = dict(who='tim', what='ham', meal='dinner')
+ self.assertEqual(s.substitute(d), 'tim likes ham for dinner')
+ self.assertRaises(KeyError, s.substitute,
+ dict(who='tim', what='ham'))
+
+ def test_escapes(self):
+ eq = self.assertEqual
+ s = Template('$who likes to eat a bag of $$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 $bag.what')
+ self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
+
+ def test_pattern_override(self):
+ class MyPattern(Template):
+ pattern = r"""
+ (?P<escaped>@{2}) |
+ @(?P<named>[_a-z][._a-z0-9]*) |
+ @{(?P<braced>[_a-z][._a-z0-9]*)} |
+ (?P<invalid>@)
+ """
+ m = Mapping()
+ m.bag = Bag()
+ m.bag.foo = Bag()
+ m.bag.foo.who = 'tim'
+ m.bag.what = 'ham'
+ s = MyPattern('@bag.foo.who likes to eat a bag of @bag.what')
+ self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham')
+
+ class BadPattern(Template):
+ pattern = r"""
+ (?P<badname>.*) |
+ (?P<escaped>@{2}) |
+ @(?P<named>[_a-z][._a-z0-9]*) |
+ @{(?P<braced>[_a-z][._a-z0-9]*)} |
+ (?P<invalid>@) |
+ """
+ s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what')
+ self.assertRaises(ValueError, s.substitute, {})
+ self.assertRaises(ValueError, s.safe_substitute, {})
+
+ def test_braced_override(self):
+ class MyTemplate(Template):
+ pattern = r"""
+ \$(?:
+ (?P<escaped>$) |
+ (?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 $@@location@@'
+ t = MyTemplate(tmpl)
+ self.assertEqual(t.safe_substitute(), tmpl)
+ val = t.safe_substitute({'location': 'Cleveland'})
+ self.assertEqual(val, 'PyCon in Cleveland')
+
+ def test_invalid_with_no_lines(self):
+ # The error formatting for invalid templates
+ # has a special case for no data that the default
+ # pattern can't trigger (always has at least '$')
+ # So we craft a pattern that is always invalid
+ # with no leading data.
+ class MyTemplate(Template):
+ pattern = r"""
+ (?P<invalid>) |
+ unreachable(
+ (?P<named>) |
+ (?P<braced>) |
+ (?P<escaped>)
+ )
+ """
+ s = MyTemplate('')
+ with self.assertRaises(ValueError) as err:
+ s.substitute({})
+ self.assertIn('line 1, col 1', str(err.exception))
+
+ 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')
+
+ s = Template('the self is $self')
+ eq(s.substitute(self='bozo'), 'the self is bozo')
+
+ def test_keyword_arguments_safe(self):
+ eq = self.assertEqual
+ raises = self.assertRaises
+ s = Template('$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, {})
+
+ s = Template('the self is $self')
+ eq(s.safe_substitute(self='bozo'), 'the self is bozo')
+
+ 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')
+
+
+ if __name__ == '__main__':
unittest.main()
projects / thirdparty / Python / cpython.git / commitdiff
