| 1076 | |
| 1077 | @unittest.expectedFailure # TODO: RUSTPYTHON; ? + |
| 1078 | def test_format(self): |
| 1079 | self.assertEqual(''.format(), '') |
| 1080 | self.assertEqual('a'.format(), 'a') |
| 1081 | self.assertEqual('ab'.format(), 'ab') |
| 1082 | self.assertEqual('a{{'.format(), 'a{') |
| 1083 | self.assertEqual('a}}'.format(), 'a}') |
| 1084 | self.assertEqual('{{b'.format(), '{b') |
| 1085 | self.assertEqual('}}b'.format(), '}b') |
| 1086 | self.assertEqual('a{{b'.format(), 'a{b') |
| 1087 | |
| 1088 | # examples from the PEP: |
| 1089 | import datetime |
| 1090 | self.assertEqual("My name is {0}".format('Fred'), "My name is Fred") |
| 1091 | self.assertEqual("My name is {0[name]}".format(dict(name='Fred')), |
| 1092 | "My name is Fred") |
| 1093 | self.assertEqual("My name is {0} :-{{}}".format('Fred'), |
| 1094 | "My name is Fred :-{}") |
| 1095 | |
| 1096 | d = datetime.date(2007, 8, 18) |
| 1097 | self.assertEqual("The year is {0.year}".format(d), |
| 1098 | "The year is 2007") |
| 1099 | |
| 1100 | # classes we'll use for testing |
| 1101 | class C: |
| 1102 | def __init__(self, x=100): |
| 1103 | self._x = x |
| 1104 | def __format__(self, spec): |
| 1105 | return spec |
| 1106 | |
| 1107 | class D: |
| 1108 | def __init__(self, x): |
| 1109 | self.x = x |
| 1110 | def __format__(self, spec): |
| 1111 | return str(self.x) |
| 1112 | |
| 1113 | # class with __str__, but no __format__ |
| 1114 | class E: |
| 1115 | def __init__(self, x): |
| 1116 | self.x = x |
| 1117 | def __str__(self): |
| 1118 | return 'E(' + self.x + ')' |
| 1119 | |
| 1120 | # class with __repr__, but no __format__ or __str__ |
| 1121 | class F: |
| 1122 | def __init__(self, x): |
| 1123 | self.x = x |
| 1124 | def __repr__(self): |
| 1125 | return 'F(' + self.x + ')' |
| 1126 | |
| 1127 | # class with __format__ that forwards to string, for some format_spec's |
| 1128 | class G: |
| 1129 | def __init__(self, x): |
| 1130 | self.x = x |
| 1131 | def __str__(self): |
| 1132 | return "string is " + self.x |
| 1133 | def __format__(self, format_spec): |
| 1134 | if format_spec == 'd': |
| 1135 | return 'G(' + self.x + ')' |