mirror of
https://github.com/python/cpython.git
synced 2025-11-04 11:49:12 +00:00
116 lines
5 KiB
Python
116 lines
5 KiB
Python
import unittest, string
|
|
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_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.assertEqual(fmt.format("-{arg!r}-", arg='test'), "-'test'-")
|
|
|
|
# override get_value ############################################
|
|
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!')
|
|
|
|
|
|
# override format_field #########################################
|
|
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*')
|
|
|
|
|
|
# override convert_field ########################################
|
|
class XFormatter(string.Formatter):
|
|
def convert_field(self, value, conversion):
|
|
if conversion == 'x':
|
|
return None
|
|
return super(XFormatter, self).convert_field(value, conversion)
|
|
|
|
fmt = XFormatter()
|
|
self.assertEqual(fmt.format("{0!r}:{0!x}", 'foo', 'foo'), "'foo':None")
|
|
|
|
|
|
# override parse ################################################
|
|
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 *')
|
|
|
|
# test all parameters used
|
|
class CheckAllUsedFormatter(string.Formatter):
|
|
def check_unused_args(self, used_args, args, kwargs):
|
|
# Track which arguments actuallly 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_maketrans(self):
|
|
transtable = b'\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`xyzdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377'
|
|
|
|
self.assertEqual(string.maketrans(b'abc', b'xyz'), transtable)
|
|
self.assertRaises(ValueError, string.maketrans, b'abc', b'xyzq')
|
|
self.assertRaises(TypeError, string.maketrans, 'abc', 'def')
|
|
|
|
def test_main():
|
|
support.run_unittest(ModuleTest)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|