diff options
Diffstat (limited to 'Lib/test/test_range.py')
| -rw-r--r-- | Lib/test/test_range.py | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Lib/test/test_range.py b/Lib/test/test_range.py index e03b570dab..9e11e518f6 100644 --- a/Lib/test/test_range.py +++ b/Lib/test/test_range.py @@ -4,6 +4,7 @@ import unittest import sys import pickle import itertools +import test.support # pure Python implementations (3 args only), for comparison def pyrange(start, stop, step): @@ -493,6 +494,38 @@ class RangeTest(unittest.TestCase): test_id = "reversed(range({}, {}, {}))".format(start, end, step) self.assert_iterators_equal(iter1, iter2, test_id, limit=100) + @test.support.cpython_only + def test_range_iterator_invocation(self): + import _testcapi + rangeiter_type = type(iter(range(0))) + + self.assertWarns(DeprecationWarning, rangeiter_type, 1, 3, 1) + + with test.support.check_warnings(('', DeprecationWarning)): + # rangeiter_new doesn't take keyword arguments + with self.assertRaises(TypeError): + rangeiter_type(a=1) + + # rangeiter_new takes exactly 3 arguments + self.assertRaises(TypeError, rangeiter_type) + self.assertRaises(TypeError, rangeiter_type, 1) + self.assertRaises(TypeError, rangeiter_type, 1, 1) + self.assertRaises(TypeError, rangeiter_type, 1, 1, 1, 1) + + # start, stop and stop must fit in C long + for good_val in [_testcapi.LONG_MAX, _testcapi.LONG_MIN]: + rangeiter_type(good_val, good_val, good_val) + for bad_val in [_testcapi.LONG_MAX + 1, _testcapi.LONG_MIN - 1]: + self.assertRaises(OverflowError, + rangeiter_type, bad_val, 1, 1) + self.assertRaises(OverflowError, + rangeiter_type, 1, bad_val, 1) + self.assertRaises(OverflowError, + rangeiter_type, 1, 1, bad_val) + + # step mustn't be zero + self.assertRaises(ValueError, rangeiter_type, 1, 1, 0) + def test_slice(self): def check(start, stop, step=None): i = slice(start, stop, step) |