(self)
| 1963 | self.assertEqual(c, b"") |
| 1964 | |
| 1965 | def test_resize_forbidden(self): |
| 1966 | # #4509: can't resize a bytearray when there are buffer exports, even |
| 1967 | # if it wouldn't reallocate the underlying buffer. |
| 1968 | # Furthermore, no destructive changes to the buffer may be applied |
| 1969 | # before raising the error. |
| 1970 | b = bytearray(10) |
| 1971 | v = memoryview(b) |
| 1972 | def manual_resize(n): |
| 1973 | b[1:-1] = range(n + 1, 2*n - 1) |
| 1974 | b.resize(10) |
| 1975 | orig = b[:] |
| 1976 | self.assertRaises(BufferError, b.resize, 11) |
| 1977 | self.assertRaises(BufferError, manual_resize, 11) |
| 1978 | self.assertEqual(b, orig) |
| 1979 | self.assertRaises(BufferError, b.resize, 9) |
| 1980 | self.assertEqual(b, orig) |
| 1981 | self.assertRaises(BufferError, b.resize, 0) |
| 1982 | self.assertEqual(b, orig) |
| 1983 | # Other operations implying resize |
| 1984 | self.assertRaises(BufferError, b.pop, 0) |
| 1985 | self.assertEqual(b, orig) |
| 1986 | self.assertRaises(BufferError, b.remove, b[1]) |
| 1987 | self.assertEqual(b, orig) |
| 1988 | def delitem(): |
| 1989 | del b[1] |
| 1990 | self.assertRaises(BufferError, delitem) |
| 1991 | self.assertEqual(b, orig) |
| 1992 | # deleting a non-contiguous slice |
| 1993 | def delslice(): |
| 1994 | b[1:-1:2] = b"" |
| 1995 | self.assertRaises(BufferError, delslice) |
| 1996 | self.assertEqual(b, orig) |
| 1997 | |
| 1998 | @test.support.cpython_only |
| 1999 | def test_obsolete_write_lock(self): |
nothing calls this directly
no test coverage detected