diff options
Diffstat (limited to 'Lib/test/test_iter.py')
| -rw-r--r-- | Lib/test/test_iter.py | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/Lib/test/test_iter.py b/Lib/test/test_iter.py index 542b28419e..6aceda23e9 100644 --- a/Lib/test/test_iter.py +++ b/Lib/test/test_iter.py @@ -3,7 +3,7 @@ import sys import unittest from test.support import run_unittest, TESTFN, unlink, cpython_only -from test.support import check_free_after_iterating +from test.support import check_free_after_iterating, ALWAYS_EQ, NEVER_EQ import pickle import collections.abc @@ -41,6 +41,14 @@ class IteratingSequenceClass: def __iter__(self): return BasicIterClass(self.n) +class IteratorProxyClass: + def __init__(self, i): + self.i = i + def __next__(self): + return next(self.i) + def __iter__(self): + return self + class SequenceClass: def __init__(self, n): self.n = n @@ -50,6 +58,12 @@ class SequenceClass: else: raise IndexError +class SequenceProxyClass: + def __init__(self, s): + self.s = s + def __getitem__(self, i): + return self.s[i] + class UnlimitedSequenceClass: def __getitem__(self, i): return i @@ -635,6 +649,13 @@ class TestCase(unittest.TestCase): for i in "abc", -1, 5, 42.42, (3, 4), [], {1: 1}, 3-12j, sc5: self.assertNotIn(i, sc5) + self.assertIn(ALWAYS_EQ, IteratorProxyClass(iter([1]))) + self.assertIn(ALWAYS_EQ, SequenceProxyClass([1])) + self.assertNotIn(ALWAYS_EQ, IteratorProxyClass(iter([NEVER_EQ]))) + self.assertNotIn(ALWAYS_EQ, SequenceProxyClass([NEVER_EQ])) + self.assertIn(NEVER_EQ, IteratorProxyClass(iter([ALWAYS_EQ]))) + self.assertIn(NEVER_EQ, SequenceProxyClass([ALWAYS_EQ])) + self.assertRaises(TypeError, lambda: 3 in 12) self.assertRaises(TypeError, lambda: 3 not in map) |