mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-10-17 12:18:23 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

gh-125420: implement Sequence.count API on memoryview objects (#125443)

Browse source
This commit is contained in:
Bénédikt Tran 2024-12-10 11:12:33 +01:00 • committed by GitHub
parent 050d59bd17
commit 4331832db0
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
5 changed files with 97 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

28
Lib/test/test_memoryview.py
View file

@ -90,6 +90,22 @@ class AbstractMemoryTests:
m = self._view(b)
self.assertEqual(list(m), [m[i] for i in range(len(m))])
def test_count(self):
for tp in self._types:
b = tp(self._source)
m = self._view(b)
l = m.tolist()
for ch in list(m):
self.assertEqual(m.count(ch), l.count(ch))
b = tp((b'a' * 5) + (b'c' * 3))
m = self._view(b) # may be sliced
l = m.tolist()
with self.subTest('count', buffer=b):
self.assertEqual(m.count(ord('a')), l.count(ord('a')))
self.assertEqual(m.count(ord('b')), l.count(ord('b')))
self.assertEqual(m.count(ord('c')), l.count(ord('c')))
def test_setitem_readonly(self):
if not self.ro_type:
self.skipTest("no read-only type to test")
@ -464,6 +480,18 @@ class BaseMemoryviewTests:
def _check_contents(self, tp, obj, contents):
self.assertEqual(obj, tp(contents))
def test_count(self):
super().test_count()
for tp in self._types:
b = tp((b'a' * 5) + (b'c' * 3))
m = self._view(b) # should not be sliced
self.assertEqual(len(b), len(m))
with self.subTest('count', buffer=b):
self.assertEqual(m.count(ord('a')), 5)
self.assertEqual(m.count(ord('b')), 0)
self.assertEqual(m.count(ord('c')), 3)
class BaseMemorySliceTests:
source_bytes = b"XabcdefY"