Christian Heimes | 7b6fc8e | 2007-11-08 02:28:11 +0000 | [diff] [blame] | 1 | """Unit tests for the memoryview |
| 2 | |
| 3 | XXX We need more tests! Some tests are in test_bytes |
| 4 | """ |
| 5 | |
| 6 | import unittest |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 7 | import test.support |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 8 | import sys |
Antoine Pitrou | c6b09eb | 2008-09-01 15:10:14 +0000 | [diff] [blame] | 9 | import gc |
| 10 | import weakref |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 11 | import array |
Christian Heimes | 7b6fc8e | 2007-11-08 02:28:11 +0000 | [diff] [blame] | 12 | |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 13 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 14 | class AbstractMemoryTests: |
| 15 | source_bytes = b"abcdef" |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 16 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 17 | @property |
| 18 | def _source(self): |
| 19 | return self.source_bytes |
| 20 | |
| 21 | @property |
| 22 | def _types(self): |
| 23 | return filter(None, [self.ro_type, self.rw_type]) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 24 | |
| 25 | def check_getitem_with_type(self, tp): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 26 | item = self.getitem_type |
| 27 | b = tp(self._source) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 28 | oldrefcount = sys.getrefcount(b) |
| 29 | m = self._view(b) |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 30 | self.assertEquals(m[0], item(b"a")) |
Ezio Melotti | e961593 | 2010-01-24 19:26:24 +0000 | [diff] [blame] | 31 | self.assertIsInstance(m[0], bytes) |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 32 | self.assertEquals(m[5], item(b"f")) |
| 33 | self.assertEquals(m[-1], item(b"f")) |
| 34 | self.assertEquals(m[-6], item(b"a")) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 35 | # Bounds checking |
| 36 | self.assertRaises(IndexError, lambda: m[6]) |
| 37 | self.assertRaises(IndexError, lambda: m[-7]) |
| 38 | self.assertRaises(IndexError, lambda: m[sys.maxsize]) |
| 39 | self.assertRaises(IndexError, lambda: m[-sys.maxsize]) |
| 40 | # Type checking |
| 41 | self.assertRaises(TypeError, lambda: m[None]) |
| 42 | self.assertRaises(TypeError, lambda: m[0.0]) |
| 43 | self.assertRaises(TypeError, lambda: m["a"]) |
| 44 | m = None |
| 45 | self.assertEquals(sys.getrefcount(b), oldrefcount) |
| 46 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 47 | def test_getitem(self): |
| 48 | for tp in self._types: |
| 49 | self.check_getitem_with_type(tp) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 50 | |
Raymond Hettinger | 159eac9 | 2009-06-23 20:38:54 +0000 | [diff] [blame] | 51 | def test_iter(self): |
| 52 | for tp in self._types: |
| 53 | b = tp(self._source) |
| 54 | m = self._view(b) |
| 55 | self.assertEqual(list(m), [m[i] for i in range(len(m))]) |
| 56 | |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 57 | def test_setitem_readonly(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 58 | if not self.ro_type: |
| 59 | return |
| 60 | b = self.ro_type(self._source) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 61 | oldrefcount = sys.getrefcount(b) |
| 62 | m = self._view(b) |
| 63 | def setitem(value): |
| 64 | m[0] = value |
| 65 | self.assertRaises(TypeError, setitem, b"a") |
| 66 | self.assertRaises(TypeError, setitem, 65) |
| 67 | self.assertRaises(TypeError, setitem, memoryview(b"a")) |
| 68 | m = None |
| 69 | self.assertEquals(sys.getrefcount(b), oldrefcount) |
| 70 | |
| 71 | def test_setitem_writable(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 72 | if not self.rw_type: |
| 73 | return |
| 74 | tp = self.rw_type |
| 75 | b = self.rw_type(self._source) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 76 | oldrefcount = sys.getrefcount(b) |
| 77 | m = self._view(b) |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 78 | m[0] = tp(b"0") |
| 79 | self._check_contents(tp, b, b"0bcdef") |
| 80 | m[1:3] = tp(b"12") |
| 81 | self._check_contents(tp, b, b"012def") |
| 82 | m[1:1] = tp(b"") |
| 83 | self._check_contents(tp, b, b"012def") |
| 84 | m[:] = tp(b"abcdef") |
| 85 | self._check_contents(tp, b, b"abcdef") |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 86 | |
| 87 | # Overlapping copies of a view into itself |
| 88 | m[0:3] = m[2:5] |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 89 | self._check_contents(tp, b, b"cdedef") |
| 90 | m[:] = tp(b"abcdef") |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 91 | m[2:5] = m[0:3] |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 92 | self._check_contents(tp, b, b"ababcf") |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 93 | |
| 94 | def setitem(key, value): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 95 | m[key] = tp(value) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 96 | # Bounds checking |
| 97 | self.assertRaises(IndexError, setitem, 6, b"a") |
| 98 | self.assertRaises(IndexError, setitem, -7, b"a") |
| 99 | self.assertRaises(IndexError, setitem, sys.maxsize, b"a") |
| 100 | self.assertRaises(IndexError, setitem, -sys.maxsize, b"a") |
| 101 | # Wrong index/slice types |
| 102 | self.assertRaises(TypeError, setitem, 0.0, b"a") |
| 103 | self.assertRaises(TypeError, setitem, (0,), b"a") |
| 104 | self.assertRaises(TypeError, setitem, "a", b"a") |
| 105 | # Trying to resize the memory object |
| 106 | self.assertRaises(ValueError, setitem, 0, b"") |
| 107 | self.assertRaises(ValueError, setitem, 0, b"ab") |
| 108 | self.assertRaises(ValueError, setitem, slice(1,1), b"a") |
| 109 | self.assertRaises(ValueError, setitem, slice(0,2), b"a") |
| 110 | |
| 111 | m = None |
| 112 | self.assertEquals(sys.getrefcount(b), oldrefcount) |
| 113 | |
Antoine Pitrou | e0793ba | 2010-09-01 21:14:16 +0000 | [diff] [blame] | 114 | def test_delitem(self): |
| 115 | for tp in self._types: |
| 116 | b = tp(self._source) |
| 117 | m = self._view(b) |
| 118 | with self.assertRaises(TypeError): |
| 119 | del m[1] |
| 120 | with self.assertRaises(TypeError): |
| 121 | del m[1:4] |
| 122 | |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 123 | def test_tobytes(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 124 | for tp in self._types: |
| 125 | m = self._view(tp(self._source)) |
| 126 | b = m.tobytes() |
| 127 | # This calls self.getitem_type() on each separate byte of b"abcdef" |
| 128 | expected = b"".join( |
| 129 | self.getitem_type(bytes([c])) for c in b"abcdef") |
| 130 | self.assertEquals(b, expected) |
Ezio Melotti | e961593 | 2010-01-24 19:26:24 +0000 | [diff] [blame] | 131 | self.assertIsInstance(b, bytes) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 132 | |
| 133 | def test_tolist(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 134 | for tp in self._types: |
| 135 | m = self._view(tp(self._source)) |
| 136 | l = m.tolist() |
| 137 | self.assertEquals(l, list(b"abcdef")) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 138 | |
| 139 | def test_compare(self): |
| 140 | # memoryviews can compare for equality with other objects |
| 141 | # having the buffer interface. |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 142 | for tp in self._types: |
| 143 | m = self._view(tp(self._source)) |
| 144 | for tp_comp in self._types: |
| 145 | self.assertTrue(m == tp_comp(b"abcdef")) |
| 146 | self.assertFalse(m != tp_comp(b"abcdef")) |
| 147 | self.assertFalse(m == tp_comp(b"abcde")) |
| 148 | self.assertTrue(m != tp_comp(b"abcde")) |
| 149 | self.assertFalse(m == tp_comp(b"abcde1")) |
| 150 | self.assertTrue(m != tp_comp(b"abcde1")) |
| 151 | self.assertTrue(m == m) |
| 152 | self.assertTrue(m == m[:]) |
| 153 | self.assertTrue(m[0:6] == m[:]) |
| 154 | self.assertFalse(m[0:5] == m) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 155 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 156 | # Comparison with objects which don't support the buffer API |
| 157 | self.assertFalse(m == "abcdef") |
| 158 | self.assertTrue(m != "abcdef") |
| 159 | self.assertFalse("abcdef" == m) |
| 160 | self.assertTrue("abcdef" != m) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 161 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 162 | # Unordered comparisons |
| 163 | for c in (m, b"abcdef"): |
| 164 | self.assertRaises(TypeError, lambda: m < c) |
| 165 | self.assertRaises(TypeError, lambda: c <= m) |
| 166 | self.assertRaises(TypeError, lambda: m >= c) |
| 167 | self.assertRaises(TypeError, lambda: c > m) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 168 | |
| 169 | def check_attributes_with_type(self, tp): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 170 | m = self._view(tp(self._source)) |
| 171 | self.assertEquals(m.format, self.format) |
| 172 | self.assertEquals(m.itemsize, self.itemsize) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 173 | self.assertEquals(m.ndim, 1) |
| 174 | self.assertEquals(m.shape, (6,)) |
Benjamin Peterson | 5e19e44 | 2008-09-10 21:47:03 +0000 | [diff] [blame] | 175 | self.assertEquals(len(m), 6) |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 176 | self.assertEquals(m.strides, (self.itemsize,)) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 177 | self.assertEquals(m.suboffsets, None) |
| 178 | return m |
| 179 | |
| 180 | def test_attributes_readonly(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 181 | if not self.ro_type: |
| 182 | return |
| 183 | m = self.check_attributes_with_type(self.ro_type) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 184 | self.assertEquals(m.readonly, True) |
| 185 | |
| 186 | def test_attributes_writable(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 187 | if not self.rw_type: |
| 188 | return |
| 189 | m = self.check_attributes_with_type(self.rw_type) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 190 | self.assertEquals(m.readonly, False) |
| 191 | |
Antoine Pitrou | c6b09eb | 2008-09-01 15:10:14 +0000 | [diff] [blame] | 192 | def test_getbuffer(self): |
| 193 | # Test PyObject_GetBuffer() on a memoryview object. |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 194 | for tp in self._types: |
| 195 | b = tp(self._source) |
| 196 | oldrefcount = sys.getrefcount(b) |
| 197 | m = self._view(b) |
| 198 | oldviewrefcount = sys.getrefcount(m) |
| 199 | s = str(m, "utf-8") |
| 200 | self._check_contents(tp, b, s.encode("utf-8")) |
| 201 | self.assertEquals(sys.getrefcount(m), oldviewrefcount) |
| 202 | m = None |
| 203 | self.assertEquals(sys.getrefcount(b), oldrefcount) |
Antoine Pitrou | c6b09eb | 2008-09-01 15:10:14 +0000 | [diff] [blame] | 204 | |
| 205 | def test_gc(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 206 | for tp in self._types: |
| 207 | if not isinstance(tp, type): |
| 208 | # If tp is a factory rather than a plain type, skip |
| 209 | continue |
Antoine Pitrou | c6b09eb | 2008-09-01 15:10:14 +0000 | [diff] [blame] | 210 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 211 | class MySource(tp): |
| 212 | pass |
| 213 | class MyObject: |
| 214 | pass |
| 215 | |
| 216 | # Create a reference cycle through a memoryview object |
| 217 | b = MySource(tp(b'abc')) |
| 218 | m = self._view(b) |
| 219 | o = MyObject() |
| 220 | b.m = m |
| 221 | b.o = o |
| 222 | wr = weakref.ref(o) |
| 223 | b = m = o = None |
| 224 | # The cycle must be broken |
| 225 | gc.collect() |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 226 | self.assertTrue(wr() is None, wr()) |
Antoine Pitrou | c6b09eb | 2008-09-01 15:10:14 +0000 | [diff] [blame] | 227 | |
Antoine Pitrou | 6e6cc83 | 2010-09-09 12:59:39 +0000 | [diff] [blame] | 228 | def _check_released(self, m, tp): |
| 229 | check = self.assertRaisesRegexp(ValueError, "released") |
| 230 | with check: bytes(m) |
| 231 | with check: m.tobytes() |
| 232 | with check: m.tolist() |
| 233 | with check: m[0] |
| 234 | with check: m[0] = b'x' |
| 235 | with check: len(m) |
| 236 | with check: m.format |
| 237 | with check: m.itemsize |
| 238 | with check: m.ndim |
| 239 | with check: m.readonly |
| 240 | with check: m.shape |
| 241 | with check: m.strides |
| 242 | with check: |
| 243 | with m: |
| 244 | pass |
| 245 | # str() and repr() still function |
| 246 | self.assertIn("released memory", str(m)) |
| 247 | self.assertIn("released memory", repr(m)) |
| 248 | self.assertEqual(m, m) |
| 249 | self.assertNotEqual(m, memoryview(tp(self._source))) |
| 250 | self.assertNotEqual(m, tp(self._source)) |
| 251 | |
| 252 | def test_contextmanager(self): |
| 253 | for tp in self._types: |
| 254 | b = tp(self._source) |
| 255 | m = self._view(b) |
| 256 | with m as cm: |
| 257 | self.assertIs(cm, m) |
| 258 | self._check_released(m, tp) |
| 259 | m = self._view(b) |
| 260 | # Can release explicitly inside the context manager |
| 261 | with m: |
| 262 | m.release() |
| 263 | |
| 264 | def test_release(self): |
| 265 | for tp in self._types: |
| 266 | b = tp(self._source) |
| 267 | m = self._view(b) |
| 268 | m.release() |
| 269 | self._check_released(m, tp) |
| 270 | # Can be called a second time (it's a no-op) |
| 271 | m.release() |
| 272 | self._check_released(m, tp) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 273 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 274 | # Variations on source objects for the buffer: bytes-like objects, then arrays |
| 275 | # with itemsize > 1. |
| 276 | # NOTE: support for multi-dimensional objects is unimplemented. |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 277 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 278 | class BaseBytesMemoryTests(AbstractMemoryTests): |
| 279 | ro_type = bytes |
| 280 | rw_type = bytearray |
| 281 | getitem_type = bytes |
| 282 | itemsize = 1 |
| 283 | format = 'B' |
| 284 | |
| 285 | class BaseArrayMemoryTests(AbstractMemoryTests): |
| 286 | ro_type = None |
| 287 | rw_type = lambda self, b: array.array('i', list(b)) |
Antoine Pitrou | 1ce3eb5 | 2010-09-01 20:29:34 +0000 | [diff] [blame] | 288 | getitem_type = lambda self, b: array.array('i', list(b)).tobytes() |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 289 | itemsize = array.array('i').itemsize |
| 290 | format = 'i' |
| 291 | |
| 292 | def test_getbuffer(self): |
| 293 | # XXX Test should be adapted for non-byte buffers |
| 294 | pass |
| 295 | |
| 296 | def test_tolist(self): |
| 297 | # XXX NotImplementedError: tolist() only supports byte views |
| 298 | pass |
| 299 | |
| 300 | |
| 301 | # Variations on indirection levels: memoryview, slice of memoryview, |
| 302 | # slice of slice of memoryview. |
| 303 | # This is important to test allocation subtleties. |
| 304 | |
| 305 | class BaseMemoryviewTests: |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 306 | def _view(self, obj): |
| 307 | return memoryview(obj) |
| 308 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 309 | def _check_contents(self, tp, obj, contents): |
| 310 | self.assertEquals(obj, tp(contents)) |
Christian Heimes | 7b6fc8e | 2007-11-08 02:28:11 +0000 | [diff] [blame] | 311 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 312 | class BaseMemorySliceTests: |
| 313 | source_bytes = b"XabcdefY" |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 314 | |
| 315 | def _view(self, obj): |
| 316 | m = memoryview(obj) |
| 317 | return m[1:7] |
| 318 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 319 | def _check_contents(self, tp, obj, contents): |
| 320 | self.assertEquals(obj[1:7], tp(contents)) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 321 | |
| 322 | def test_refs(self): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 323 | for tp in self._types: |
| 324 | m = memoryview(tp(self._source)) |
| 325 | oldrefcount = sys.getrefcount(m) |
| 326 | m[1:2] |
| 327 | self.assertEquals(sys.getrefcount(m), oldrefcount) |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 328 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 329 | class BaseMemorySliceSliceTests: |
| 330 | source_bytes = b"XabcdefY" |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 331 | |
| 332 | def _view(self, obj): |
| 333 | m = memoryview(obj) |
| 334 | return m[:7][1:] |
| 335 | |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 336 | def _check_contents(self, tp, obj, contents): |
| 337 | self.assertEquals(obj[1:7], tp(contents)) |
| 338 | |
| 339 | |
| 340 | # Concrete test classes |
| 341 | |
| 342 | class BytesMemoryviewTest(unittest.TestCase, |
| 343 | BaseMemoryviewTests, BaseBytesMemoryTests): |
| 344 | |
| 345 | def test_constructor(self): |
| 346 | for tp in self._types: |
| 347 | ob = tp(self._source) |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 348 | self.assertTrue(memoryview(ob)) |
| 349 | self.assertTrue(memoryview(object=ob)) |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 350 | self.assertRaises(TypeError, memoryview) |
| 351 | self.assertRaises(TypeError, memoryview, ob, ob) |
| 352 | self.assertRaises(TypeError, memoryview, argument=ob) |
| 353 | self.assertRaises(TypeError, memoryview, ob, argument=True) |
| 354 | |
| 355 | class ArrayMemoryviewTest(unittest.TestCase, |
| 356 | BaseMemoryviewTests, BaseArrayMemoryTests): |
| 357 | |
| 358 | def test_array_assign(self): |
| 359 | # Issue #4569: segfault when mutating a memoryview with itemsize != 1 |
| 360 | a = array.array('i', range(10)) |
| 361 | m = memoryview(a) |
| 362 | new_a = array.array('i', range(9, -1, -1)) |
| 363 | m[:] = new_a |
| 364 | self.assertEquals(a, new_a) |
| 365 | |
| 366 | |
| 367 | class BytesMemorySliceTest(unittest.TestCase, |
| 368 | BaseMemorySliceTests, BaseBytesMemoryTests): |
| 369 | pass |
| 370 | |
| 371 | class ArrayMemorySliceTest(unittest.TestCase, |
| 372 | BaseMemorySliceTests, BaseArrayMemoryTests): |
| 373 | pass |
| 374 | |
| 375 | class BytesMemorySliceSliceTest(unittest.TestCase, |
| 376 | BaseMemorySliceSliceTests, BaseBytesMemoryTests): |
| 377 | pass |
| 378 | |
| 379 | class ArrayMemorySliceSliceTest(unittest.TestCase, |
| 380 | BaseMemorySliceSliceTests, BaseArrayMemoryTests): |
| 381 | pass |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 382 | |
| 383 | |
Christian Heimes | 7b6fc8e | 2007-11-08 02:28:11 +0000 | [diff] [blame] | 384 | def test_main(): |
Antoine Pitrou | c3b3924 | 2009-01-03 16:59:18 +0000 | [diff] [blame] | 385 | test.support.run_unittest(__name__) |
Christian Heimes | 7b6fc8e | 2007-11-08 02:28:11 +0000 | [diff] [blame] | 386 | |
| 387 | if __name__ == "__main__": |
| 388 | test_main() |