[Python-checkins] cpython: Mark itertools tests of tuple reuse as being specific to CPython.
alex.gaynor
python-checkins at python.org
Mon Jul 18 01:26:10 CEST 2011
http://hg.python.org/cpython/rev/2eb8789e30e7
changeset: 71397:2eb8789e30e7
parent: 71389:b2125a6deb96
user: Alex Gaynor <alex.gaynor at gmail.com>
date: Sun Jul 17 16:21:30 2011 -0700
summary:
Mark itertools tests of tuple reuse as being specific to CPython.
files:
Lib/test/test_itertools.py | 21 +++++++++++++++------
1 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -168,7 +168,8 @@
self.assertEqual(result, list(combinations2(values, r))) # matches second pure python version
self.assertEqual(result, list(combinations3(values, r))) # matches second pure python version
- # Test implementation detail: tuple re-use
+ @support.impl_detail("tuple reuse is specific to CPython")
+ def test_combinations_tuple_reuse(self):
self.assertEqual(len(set(map(id, combinations('abcde', 3)))), 1)
self.assertNotEqual(len(set(map(id, list(combinations('abcde', 3))))), 1)
@@ -238,7 +239,9 @@
self.assertEqual(result, list(cwr1(values, r))) # matches first pure python version
self.assertEqual(result, list(cwr2(values, r))) # matches second pure python version
- # Test implementation detail: tuple re-use
+ @support.impl_detail("tuple reuse is specific to CPython")
+ def test_combinations_with_replacement_tuple_reuse(self):
+ cwr = combinations_with_replacement
self.assertEqual(len(set(map(id, cwr('abcde', 3)))), 1)
self.assertNotEqual(len(set(map(id, list(cwr('abcde', 3))))), 1)
@@ -302,7 +305,8 @@
self.assertEqual(result, list(permutations(values, None))) # test r as None
self.assertEqual(result, list(permutations(values))) # test default r
- # Test implementation detail: tuple re-use
+ @support.impl_detail("tuple resuse is CPython specific")
+ def test_permutations_tuple_reuse(self):
self.assertEqual(len(set(map(id, permutations('abcde', 3)))), 1)
self.assertNotEqual(len(set(map(id, list(permutations('abcde', 3))))), 1)
@@ -566,11 +570,13 @@
self.assertEqual(list(zip()), lzip())
self.assertRaises(TypeError, zip, 3)
self.assertRaises(TypeError, zip, range(3), 3)
- # Check tuple re-use (implementation detail)
self.assertEqual([tuple(list(pair)) for pair in zip('abc', 'def')],
lzip('abc', 'def'))
self.assertEqual([pair for pair in zip('abc', 'def')],
lzip('abc', 'def'))
+
+ @support.impl_detail("tuple reuse is specific to CPython")
+ def test_zip_tuple_reuse(self):
ids = list(map(id, zip('abc', 'def')))
self.assertEqual(min(ids), max(ids))
ids = list(map(id, list(zip('abc', 'def'))))
@@ -613,11 +619,13 @@
else:
self.fail('Did not raise Type in: ' + stmt)
- # Check tuple re-use (implementation detail)
self.assertEqual([tuple(list(pair)) for pair in zip_longest('abc', 'def')],
list(zip('abc', 'def')))
self.assertEqual([pair for pair in zip_longest('abc', 'def')],
list(zip('abc', 'def')))
+
+ @support.impl_detail("tuple reuse is specific to CPython")
+ def test_zip_longest_tuple_reuse(self):
ids = list(map(id, zip_longest('abc', 'def')))
self.assertEqual(min(ids), max(ids))
ids = list(map(id, list(zip_longest('abc', 'def'))))
@@ -721,7 +729,8 @@
args = map(iter, args)
self.assertEqual(len(list(product(*args))), expected_len)
- # Test implementation detail: tuple re-use
+ @support.impl_detail("tuple reuse is specific to CPython")
+ def test_product_tuple_reuse(self):
self.assertEqual(len(set(map(id, product('abc', 'def')))), 1)
self.assertNotEqual(len(set(map(id, list(product('abc', 'def'))))), 1)
--
Repository URL: http://hg.python.org/cpython
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