diff options
Diffstat (limited to 'Lib/test/test_unicode.py')
| -rw-r--r-- | Lib/test/test_unicode.py | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py index 70e4787..356f570 100644 --- a/Lib/test/test_unicode.py +++ b/Lib/test/test_unicode.py @@ -1087,9 +1087,9 @@ class UnicodeTest( self.assertRaises(ValueError, "{0!}".format, 0) self.assertRaises(ValueError, "{0!rs}".format, 0) self.assertRaises(ValueError, "{!}".format) - self.assertRaises(ValueError, "{:}".format) - self.assertRaises(ValueError, "{:s}".format) - self.assertRaises(ValueError, "{}".format) + self.assertRaises(IndexError, "{:}".format) + self.assertRaises(IndexError, "{:s}".format) + self.assertRaises(IndexError, "{}".format) # can't have a replacement on the field name portion self.assertRaises(TypeError, '{0[{1}]}'.format, 'abcdefg', 4) @@ -1113,6 +1113,36 @@ class UnicodeTest( # will fail self.assertRaises(UnicodeEncodeError, "foo{0}".format, u'\u1000bar') + def test_format_auto_numbering(self): + class C: + def __init__(self, x=100): + self._x = x + def __format__(self, spec): + return spec + + self.assertEqual(u'{}'.format(10), u'10') + self.assertEqual(u'{:5}'.format('s'), u's ') + self.assertEqual(u'{!r}'.format('s'), u"'s'") + self.assertEqual(u'{._x}'.format(C(10)), u'10') + self.assertEqual(u'{[1]}'.format([1, 2]), u'2') + self.assertEqual(u'{[a]}'.format({'a':4, 'b':2}), u'4') + self.assertEqual(u'a{}b{}c'.format(0, 1), u'a0b1c') + + self.assertEqual(u'a{:{}}b'.format('x', '^10'), u'a x b') + self.assertEqual(u'a{:{}x}b'.format(20, '#'), u'a0x14b') + + # can't mix and match numbering and auto-numbering + self.assertRaises(ValueError, u'{}{1}'.format, 1, 2) + self.assertRaises(ValueError, u'{1}{}'.format, 1, 2) + self.assertRaises(ValueError, u'{:{1}}'.format, 1, 2) + self.assertRaises(ValueError, u'{0:{}}'.format, 1, 2) + + # can mix and match auto-numbering and named + self.assertEqual(u'{f}{}'.format(4, f='test'), u'test4') + self.assertEqual(u'{}{f}'.format(4, f='test'), u'4test') + self.assertEqual(u'{:{f}}{g}{}'.format(1, 3, g='g', f=2), u' 1g3') + self.assertEqual(u'{f:{}}{}{g}'.format(2, 4, f=1, g='g'), u' 14g') + def test_raiseMemError(self): # Ensure that the freelist contains a consistent object, even # when a string allocation fails with a MemoryError. |