/usr/lib/python3.4/test/test_string.py is in libpython3.4-testsuite 3.4.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from test import support
class ModuleTest(unittest.TestCase):
def test_attrs(self):
string.whitespace
string.ascii_lowercase
string.ascii_uppercase
string.ascii_letters
string.digits
string.hexdigits
string.octdigits
string.punctuation
string.printable
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")
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('{:^{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))
def test_main():
support.run_unittest(ModuleTest)
if __name__ == "__main__":
test_main()
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