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Issue #27185: Rename test_string.py to test_string_merged.py.
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import unittest, string
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class ModuleTest(unittest.TestCase):
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def test_attrs(self):
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# While the exact order of the items in these attributes is not
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# technically part of the "language spec", in practice there is almost
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# certainly user code that depends on the order, so de-facto it *is*
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# part of the spec.
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self.assertEqual(string.whitespace, ' \t\n\r\x0b\x0c')
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self.assertEqual(string.ascii_lowercase, 'abcdefghijklmnopqrstuvwxyz')
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self.assertEqual(string.ascii_uppercase, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')
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self.assertEqual(string.ascii_letters, string.ascii_lowercase + string.ascii_uppercase)
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self.assertEqual(string.digits, '0123456789')
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self.assertEqual(string.hexdigits, string.digits + 'abcdefABCDEF')
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self.assertEqual(string.octdigits, '01234567')
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self.assertEqual(string.punctuation, '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~')
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self.assertEqual(string.printable, string.digits + string.ascii_lowercase + string.ascii_uppercase + string.punctuation + string.whitespace)
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def test_capwords(self):
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self.assertEqual(string.capwords('abc def ghi'), 'Abc Def Ghi')
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self.assertEqual(string.capwords('abc\tdef\nghi'), 'Abc Def Ghi')
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self.assertEqual(string.capwords('abc\t def \nghi'), 'Abc Def Ghi')
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self.assertEqual(string.capwords('ABC DEF GHI'), 'Abc Def Ghi')
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self.assertEqual(string.capwords('ABC-DEF-GHI', '-'), 'Abc-Def-Ghi')
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self.assertEqual(string.capwords('ABC-def DEF-ghi GHI'), 'Abc-def Def-ghi Ghi')
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self.assertEqual(string.capwords(' aBc DeF '), 'Abc Def')
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self.assertEqual(string.capwords('\taBc\tDeF\t'), 'Abc Def')
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self.assertEqual(string.capwords('\taBc\tDeF\t', '\t'), '\tAbc\tDef\t')
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def test_basic_formatter(self):
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fmt = string.Formatter()
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self.assertEqual(fmt.format("foo"), "foo")
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self.assertEqual(fmt.format("foo{0}", "bar"), "foobar")
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self.assertEqual(fmt.format("foo{1}{0}-{1}", "bar", 6), "foo6bar-6")
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self.assertRaises(TypeError, fmt.format)
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self.assertRaises(TypeError, string.Formatter.format)
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def test_format_keyword_arguments(self):
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fmt = string.Formatter()
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self.assertEqual(fmt.format("-{arg}-", arg='test'), '-test-')
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self.assertRaises(KeyError, fmt.format, "-{arg}-")
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self.assertEqual(fmt.format("-{self}-", self='test'), '-test-')
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self.assertRaises(KeyError, fmt.format, "-{self}-")
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self.assertEqual(fmt.format("-{format_string}-", format_string='test'),
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'-test-')
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self.assertRaises(KeyError, fmt.format, "-{format_string}-")
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with self.assertWarnsRegex(DeprecationWarning, "format_string"):
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self.assertEqual(fmt.format(arg='test', format_string="-{arg}-"),
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'-test-')
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def test_auto_numbering(self):
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fmt = string.Formatter()
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self.assertEqual(fmt.format('foo{}{}', 'bar', 6),
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'foo{}{}'.format('bar', 6))
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self.assertEqual(fmt.format('foo{1}{num}{1}', None, 'bar', num=6),
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'foo{1}{num}{1}'.format(None, 'bar', num=6))
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self.assertEqual(fmt.format('{:^{}}', 'bar', 6),
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'{:^{}}'.format('bar', 6))
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self.assertEqual(fmt.format('{:^{}} {}', 'bar', 6, 'X'),
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'{:^{}} {}'.format('bar', 6, 'X'))
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self.assertEqual(fmt.format('{:^{pad}}{}', 'foo', 'bar', pad=6),
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'{:^{pad}}{}'.format('foo', 'bar', pad=6))
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with self.assertRaises(ValueError):
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fmt.format('foo{1}{}', 'bar', 6)
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with self.assertRaises(ValueError):
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fmt.format('foo{}{1}', 'bar', 6)
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def test_conversion_specifiers(self):
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fmt = string.Formatter()
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self.assertEqual(fmt.format("-{arg!r}-", arg='test'), "-'test'-")
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self.assertEqual(fmt.format("{0!s}", 'test'), 'test')
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self.assertRaises(ValueError, fmt.format, "{0!h}", 'test')
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# issue13579
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self.assertEqual(fmt.format("{0!a}", 42), '42')
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self.assertEqual(fmt.format("{0!a}", string.ascii_letters),
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"'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'")
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self.assertEqual(fmt.format("{0!a}", chr(255)), "'\\xff'")
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self.assertEqual(fmt.format("{0!a}", chr(256)), "'\\u0100'")
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def test_name_lookup(self):
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fmt = string.Formatter()
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class AnyAttr:
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def __getattr__(self, attr):
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return attr
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x = AnyAttr()
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self.assertEqual(fmt.format("{0.lumber}{0.jack}", x), 'lumberjack')
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with self.assertRaises(AttributeError):
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fmt.format("{0.lumber}{0.jack}", '')
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def test_index_lookup(self):
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fmt = string.Formatter()
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lookup = ["eggs", "and", "spam"]
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self.assertEqual(fmt.format("{0[2]}{0[0]}", lookup), 'spameggs')
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with self.assertRaises(IndexError):
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fmt.format("{0[2]}{0[0]}", [])
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with self.assertRaises(KeyError):
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fmt.format("{0[2]}{0[0]}", {})
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def test_override_get_value(self):
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class NamespaceFormatter(string.Formatter):
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def __init__(self, namespace={}):
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string.Formatter.__init__(self)
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self.namespace = namespace
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def get_value(self, key, args, kwds):
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if isinstance(key, str):
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try:
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# Check explicitly passed arguments first
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return kwds[key]
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except KeyError:
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return self.namespace[key]
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else:
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string.Formatter.get_value(key, args, kwds)
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fmt = NamespaceFormatter({'greeting':'hello'})
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self.assertEqual(fmt.format("{greeting}, world!"), 'hello, world!')
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def test_override_format_field(self):
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class CallFormatter(string.Formatter):
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def format_field(self, value, format_spec):
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return format(value(), format_spec)
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fmt = CallFormatter()
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self.assertEqual(fmt.format('*{0}*', lambda : 'result'), '*result*')
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def test_override_convert_field(self):
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class XFormatter(string.Formatter):
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def convert_field(self, value, conversion):
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if conversion == 'x':
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return None
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return super().convert_field(value, conversion)
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fmt = XFormatter()
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self.assertEqual(fmt.format("{0!r}:{0!x}", 'foo', 'foo'), "'foo':None")
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def test_override_parse(self):
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class BarFormatter(string.Formatter):
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# returns an iterable that contains tuples of the form:
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# (literal_text, field_name, format_spec, conversion)
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def parse(self, format_string):
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for field in format_string.split('|'):
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if field[0] == '+':
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# it's markup
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field_name, _, format_spec = field[1:].partition(':')
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yield '', field_name, format_spec, None
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else:
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yield field, None, None, None
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fmt = BarFormatter()
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self.assertEqual(fmt.format('*|+0:^10s|*', 'foo'), '* foo *')
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def test_check_unused_args(self):
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class CheckAllUsedFormatter(string.Formatter):
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def check_unused_args(self, used_args, args, kwargs):
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# Track which arguments actually got used
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unused_args = set(kwargs.keys())
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unused_args.update(range(0, len(args)))
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for arg in used_args:
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unused_args.remove(arg)
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if unused_args:
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raise ValueError("unused arguments")
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fmt = CheckAllUsedFormatter()
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self.assertEqual(fmt.format("{0}", 10), "10")
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self.assertEqual(fmt.format("{0}{i}", 10, i=100), "10100")
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self.assertEqual(fmt.format("{0}{i}{1}", 10, 20, i=100), "1010020")
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self.assertRaises(ValueError, fmt.format, "{0}{i}{1}", 10, 20, i=100, j=0)
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self.assertRaises(ValueError, fmt.format, "{0}", 10, 20)
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self.assertRaises(ValueError, fmt.format, "{0}", 10, 20, i=100)
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self.assertRaises(ValueError, fmt.format, "{i}", 10, 20, i=100)
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def test_vformat_recursion_limit(self):
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fmt = string.Formatter()
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args = ()
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kwargs = dict(i=100)
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with self.assertRaises(ValueError) as err:
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fmt._vformat("{i}", args, kwargs, set(), -1)
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self.assertIn("recursion", str(err.exception))
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if __name__ == "__main__":
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unittest.main()
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