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-rw-r--r--Lib/test/test_buffer.py39
-rw-r--r--Lib/test/test_memoryview.py11
2 files changed, 34 insertions, 16 deletions
diff --git a/Lib/test/test_buffer.py b/Lib/test/test_buffer.py
index f302da4..a3f3ef0 100644
--- a/Lib/test/test_buffer.py
+++ b/Lib/test/test_buffer.py
@@ -924,23 +924,30 @@ class TestBufferProtocol(unittest.TestCase):
except BufferError: # re-exporter does not provide full information
return
ex = result.obj if isinstance(result, memoryview) else result
- self.assertIs(m.obj, ex)
- self.assertEqual(m.nbytes, expected_len)
- self.assertEqual(m.itemsize, itemsize)
- self.assertEqual(m.format, fmt)
- self.assertEqual(m.readonly, readonly)
- self.assertEqual(m.ndim, ndim)
- self.assertEqual(m.shape, tuple(shape))
- if not (sliced and suboffsets):
- self.assertEqual(m.strides, tuple(strides))
- self.assertEqual(m.suboffsets, tuple(suboffsets))
-
- n = 1 if ndim == 0 else len(lst)
- self.assertEqual(len(m), n)
- rep = result.tolist() if fmt else result.tobytes()
- self.assertEqual(rep, lst)
- self.assertEqual(m, result)
+ def check_memoryview(m, expected_readonly=readonly):
+ self.assertIs(m.obj, ex)
+ self.assertEqual(m.nbytes, expected_len)
+ self.assertEqual(m.itemsize, itemsize)
+ self.assertEqual(m.format, fmt)
+ self.assertEqual(m.readonly, expected_readonly)
+ self.assertEqual(m.ndim, ndim)
+ self.assertEqual(m.shape, tuple(shape))
+ if not (sliced and suboffsets):
+ self.assertEqual(m.strides, tuple(strides))
+ self.assertEqual(m.suboffsets, tuple(suboffsets))
+
+ n = 1 if ndim == 0 else len(lst)
+ self.assertEqual(len(m), n)
+
+ rep = result.tolist() if fmt else result.tobytes()
+ self.assertEqual(rep, lst)
+ self.assertEqual(m, result)
+
+ check_memoryview(m)
+ with m.toreadonly() as mm:
+ check_memoryview(mm, expected_readonly=True)
+ m.tobytes() # Releasing mm didn't release m
def verify_getbuf(self, orig_ex, ex, req, sliced=False):
def simple_fmt(ex):
diff --git a/Lib/test/test_memoryview.py b/Lib/test/test_memoryview.py
index ddd5b9a..ca307d8 100644
--- a/Lib/test/test_memoryview.py
+++ b/Lib/test/test_memoryview.py
@@ -362,6 +362,17 @@ class AbstractMemoryTests:
self.assertEqual(list(reversed(m)), aslist)
self.assertEqual(list(reversed(m)), list(m[::-1]))
+ def test_toreadonly(self):
+ for tp in self._types:
+ b = tp(self._source)
+ m = self._view(b)
+ mm = m.toreadonly()
+ self.assertTrue(mm.readonly)
+ self.assertTrue(memoryview(mm).readonly)
+ self.assertEqual(mm.tolist(), m.tolist())
+ mm.release()
+ m.tolist()
+
def test_issue22668(self):
a = array.array('H', [256, 256, 256, 256])
x = memoryview(a)