| 1 | n/a | # Adapted from test_file.py by Daniel Stutzbach |
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| 2 | n/a | |
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| 3 | n/a | import sys |
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| 4 | n/a | import os |
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| 5 | n/a | import io |
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| 6 | n/a | import errno |
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| 7 | n/a | import unittest |
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| 8 | n/a | from array import array |
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| 9 | n/a | from weakref import proxy |
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| 10 | n/a | from functools import wraps |
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| 11 | n/a | |
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| 12 | n/a | from test.support import (TESTFN, TESTFN_UNICODE, check_warnings, run_unittest, |
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| 13 | n/a | make_bad_fd, cpython_only) |
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| 14 | n/a | from collections import UserList |
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| 15 | n/a | |
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| 16 | n/a | import _io # C implementation of io |
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| 17 | n/a | import _pyio # Python implementation of io |
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| 18 | n/a | |
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| 19 | n/a | |
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| 20 | n/a | class AutoFileTests: |
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| 21 | n/a | # file tests for which a test file is automatically set up |
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| 22 | n/a | |
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| 23 | n/a | def setUp(self): |
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| 24 | n/a | self.f = self.FileIO(TESTFN, 'w') |
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| 25 | n/a | |
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| 26 | n/a | def tearDown(self): |
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| 27 | n/a | if self.f: |
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| 28 | n/a | self.f.close() |
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| 29 | n/a | os.remove(TESTFN) |
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| 30 | n/a | |
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| 31 | n/a | def testWeakRefs(self): |
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| 32 | n/a | # verify weak references |
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| 33 | n/a | p = proxy(self.f) |
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| 34 | n/a | p.write(bytes(range(10))) |
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| 35 | n/a | self.assertEqual(self.f.tell(), p.tell()) |
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| 36 | n/a | self.f.close() |
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| 37 | n/a | self.f = None |
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| 38 | n/a | self.assertRaises(ReferenceError, getattr, p, 'tell') |
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| 39 | n/a | |
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| 40 | n/a | def testSeekTell(self): |
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| 41 | n/a | self.f.write(bytes(range(20))) |
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| 42 | n/a | self.assertEqual(self.f.tell(), 20) |
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| 43 | n/a | self.f.seek(0) |
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| 44 | n/a | self.assertEqual(self.f.tell(), 0) |
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| 45 | n/a | self.f.seek(10) |
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| 46 | n/a | self.assertEqual(self.f.tell(), 10) |
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| 47 | n/a | self.f.seek(5, 1) |
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| 48 | n/a | self.assertEqual(self.f.tell(), 15) |
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| 49 | n/a | self.f.seek(-5, 1) |
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| 50 | n/a | self.assertEqual(self.f.tell(), 10) |
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| 51 | n/a | self.f.seek(-5, 2) |
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| 52 | n/a | self.assertEqual(self.f.tell(), 15) |
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| 53 | n/a | |
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| 54 | n/a | def testAttributes(self): |
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| 55 | n/a | # verify expected attributes exist |
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| 56 | n/a | f = self.f |
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| 57 | n/a | |
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| 58 | n/a | self.assertEqual(f.mode, "wb") |
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| 59 | n/a | self.assertEqual(f.closed, False) |
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| 60 | n/a | |
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| 61 | n/a | # verify the attributes are readonly |
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| 62 | n/a | for attr in 'mode', 'closed': |
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| 63 | n/a | self.assertRaises((AttributeError, TypeError), |
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| 64 | n/a | setattr, f, attr, 'oops') |
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| 65 | n/a | |
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| 66 | n/a | def testBlksize(self): |
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| 67 | n/a | # test private _blksize attribute |
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| 68 | n/a | blksize = io.DEFAULT_BUFFER_SIZE |
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| 69 | n/a | # try to get preferred blksize from stat.st_blksize, if available |
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| 70 | n/a | if hasattr(os, 'fstat'): |
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| 71 | n/a | fst = os.fstat(self.f.fileno()) |
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| 72 | n/a | blksize = getattr(fst, 'st_blksize', blksize) |
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| 73 | n/a | self.assertEqual(self.f._blksize, blksize) |
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| 74 | n/a | |
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| 75 | n/a | # verify readinto |
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| 76 | n/a | def testReadintoByteArray(self): |
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| 77 | n/a | self.f.write(bytes([1, 2, 0, 255])) |
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| 78 | n/a | self.f.close() |
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| 79 | n/a | |
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| 80 | n/a | ba = bytearray(b'abcdefgh') |
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| 81 | n/a | with self.FileIO(TESTFN, 'r') as f: |
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| 82 | n/a | n = f.readinto(ba) |
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| 83 | n/a | self.assertEqual(ba, b'\x01\x02\x00\xffefgh') |
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| 84 | n/a | self.assertEqual(n, 4) |
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| 85 | n/a | |
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| 86 | n/a | def _testReadintoMemoryview(self): |
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| 87 | n/a | self.f.write(bytes([1, 2, 0, 255])) |
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| 88 | n/a | self.f.close() |
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| 89 | n/a | |
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| 90 | n/a | m = memoryview(bytearray(b'abcdefgh')) |
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| 91 | n/a | with self.FileIO(TESTFN, 'r') as f: |
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| 92 | n/a | n = f.readinto(m) |
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| 93 | n/a | self.assertEqual(m, b'\x01\x02\x00\xffefgh') |
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| 94 | n/a | self.assertEqual(n, 4) |
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| 95 | n/a | |
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| 96 | n/a | m = memoryview(bytearray(b'abcdefgh')).cast('H', shape=[2, 2]) |
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| 97 | n/a | with self.FileIO(TESTFN, 'r') as f: |
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| 98 | n/a | n = f.readinto(m) |
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| 99 | n/a | self.assertEqual(bytes(m), b'\x01\x02\x00\xffefgh') |
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| 100 | n/a | self.assertEqual(n, 4) |
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| 101 | n/a | |
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| 102 | n/a | def _testReadintoArray(self): |
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| 103 | n/a | self.f.write(bytes([1, 2, 0, 255])) |
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| 104 | n/a | self.f.close() |
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| 105 | n/a | |
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| 106 | n/a | a = array('B', b'abcdefgh') |
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| 107 | n/a | with self.FileIO(TESTFN, 'r') as f: |
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| 108 | n/a | n = f.readinto(a) |
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| 109 | n/a | self.assertEqual(a, array('B', [1, 2, 0, 255, 101, 102, 103, 104])) |
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| 110 | n/a | self.assertEqual(n, 4) |
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| 111 | n/a | |
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| 112 | n/a | a = array('b', b'abcdefgh') |
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| 113 | n/a | with self.FileIO(TESTFN, 'r') as f: |
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| 114 | n/a | n = f.readinto(a) |
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| 115 | n/a | self.assertEqual(a, array('b', [1, 2, 0, -1, 101, 102, 103, 104])) |
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| 116 | n/a | self.assertEqual(n, 4) |
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| 117 | n/a | |
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| 118 | n/a | a = array('I', b'abcdefgh') |
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| 119 | n/a | with self.FileIO(TESTFN, 'r') as f: |
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| 120 | n/a | n = f.readinto(a) |
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| 121 | n/a | self.assertEqual(a, array('I', b'\x01\x02\x00\xffefgh')) |
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| 122 | n/a | self.assertEqual(n, 4) |
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| 123 | n/a | |
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| 124 | n/a | def testWritelinesList(self): |
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| 125 | n/a | l = [b'123', b'456'] |
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| 126 | n/a | self.f.writelines(l) |
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| 127 | n/a | self.f.close() |
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| 128 | n/a | self.f = self.FileIO(TESTFN, 'rb') |
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| 129 | n/a | buf = self.f.read() |
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| 130 | n/a | self.assertEqual(buf, b'123456') |
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| 131 | n/a | |
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| 132 | n/a | def testWritelinesUserList(self): |
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| 133 | n/a | l = UserList([b'123', b'456']) |
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| 134 | n/a | self.f.writelines(l) |
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| 135 | n/a | self.f.close() |
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| 136 | n/a | self.f = self.FileIO(TESTFN, 'rb') |
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| 137 | n/a | buf = self.f.read() |
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| 138 | n/a | self.assertEqual(buf, b'123456') |
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| 139 | n/a | |
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| 140 | n/a | def testWritelinesError(self): |
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| 141 | n/a | self.assertRaises(TypeError, self.f.writelines, [1, 2, 3]) |
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| 142 | n/a | self.assertRaises(TypeError, self.f.writelines, None) |
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| 143 | n/a | self.assertRaises(TypeError, self.f.writelines, "abc") |
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| 144 | n/a | |
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| 145 | n/a | def test_none_args(self): |
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| 146 | n/a | self.f.write(b"hi\nbye\nabc") |
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| 147 | n/a | self.f.close() |
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| 148 | n/a | self.f = self.FileIO(TESTFN, 'r') |
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| 149 | n/a | self.assertEqual(self.f.read(None), b"hi\nbye\nabc") |
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| 150 | n/a | self.f.seek(0) |
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| 151 | n/a | self.assertEqual(self.f.readline(None), b"hi\n") |
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| 152 | n/a | self.assertEqual(self.f.readlines(None), [b"bye\n", b"abc"]) |
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| 153 | n/a | |
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| 154 | n/a | def test_reject(self): |
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| 155 | n/a | self.assertRaises(TypeError, self.f.write, "Hello!") |
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| 156 | n/a | |
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| 157 | n/a | def testRepr(self): |
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| 158 | n/a | self.assertEqual(repr(self.f), |
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| 159 | n/a | "<%s.FileIO name=%r mode=%r closefd=True>" % |
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| 160 | n/a | (self.modulename, self.f.name, self.f.mode)) |
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| 161 | n/a | del self.f.name |
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| 162 | n/a | self.assertEqual(repr(self.f), |
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| 163 | n/a | "<%s.FileIO fd=%r mode=%r closefd=True>" % |
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| 164 | n/a | (self.modulename, self.f.fileno(), self.f.mode)) |
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| 165 | n/a | self.f.close() |
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| 166 | n/a | self.assertEqual(repr(self.f), |
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| 167 | n/a | "<%s.FileIO [closed]>" % (self.modulename,)) |
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| 168 | n/a | |
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| 169 | n/a | def testReprNoCloseFD(self): |
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| 170 | n/a | fd = os.open(TESTFN, os.O_RDONLY) |
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| 171 | n/a | try: |
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| 172 | n/a | with self.FileIO(fd, 'r', closefd=False) as f: |
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| 173 | n/a | self.assertEqual(repr(f), |
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| 174 | n/a | "<%s.FileIO name=%r mode=%r closefd=False>" % |
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| 175 | n/a | (self.modulename, f.name, f.mode)) |
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| 176 | n/a | finally: |
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| 177 | n/a | os.close(fd) |
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| 178 | n/a | |
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| 179 | n/a | def testErrors(self): |
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| 180 | n/a | f = self.f |
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| 181 | n/a | self.assertFalse(f.isatty()) |
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| 182 | n/a | self.assertFalse(f.closed) |
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| 183 | n/a | #self.assertEqual(f.name, TESTFN) |
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| 184 | n/a | self.assertRaises(ValueError, f.read, 10) # Open for reading |
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| 185 | n/a | f.close() |
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| 186 | n/a | self.assertTrue(f.closed) |
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| 187 | n/a | f = self.FileIO(TESTFN, 'r') |
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| 188 | n/a | self.assertRaises(TypeError, f.readinto, "") |
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| 189 | n/a | self.assertFalse(f.closed) |
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| 190 | n/a | f.close() |
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| 191 | n/a | self.assertTrue(f.closed) |
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| 192 | n/a | |
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| 193 | n/a | def testMethods(self): |
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| 194 | n/a | methods = ['fileno', 'isatty', 'seekable', 'readable', 'writable', |
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| 195 | n/a | 'read', 'readall', 'readline', 'readlines', |
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| 196 | n/a | 'tell', 'truncate', 'flush'] |
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| 197 | n/a | |
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| 198 | n/a | self.f.close() |
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| 199 | n/a | self.assertTrue(self.f.closed) |
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| 200 | n/a | |
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| 201 | n/a | for methodname in methods: |
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| 202 | n/a | method = getattr(self.f, methodname) |
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| 203 | n/a | # should raise on closed file |
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| 204 | n/a | self.assertRaises(ValueError, method) |
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| 205 | n/a | |
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| 206 | n/a | self.assertRaises(TypeError, self.f.readinto) |
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| 207 | n/a | self.assertRaises(ValueError, self.f.readinto, bytearray(1)) |
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| 208 | n/a | self.assertRaises(TypeError, self.f.seek) |
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| 209 | n/a | self.assertRaises(ValueError, self.f.seek, 0) |
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| 210 | n/a | self.assertRaises(TypeError, self.f.write) |
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| 211 | n/a | self.assertRaises(ValueError, self.f.write, b'') |
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| 212 | n/a | self.assertRaises(TypeError, self.f.writelines) |
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| 213 | n/a | self.assertRaises(ValueError, self.f.writelines, b'') |
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| 214 | n/a | |
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| 215 | n/a | def testOpendir(self): |
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| 216 | n/a | # Issue 3703: opening a directory should fill the errno |
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| 217 | n/a | # Windows always returns "[Errno 13]: Permission denied |
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| 218 | n/a | # Unix uses fstat and returns "[Errno 21]: Is a directory" |
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| 219 | n/a | try: |
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| 220 | n/a | self.FileIO('.', 'r') |
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| 221 | n/a | except OSError as e: |
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| 222 | n/a | self.assertNotEqual(e.errno, 0) |
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| 223 | n/a | self.assertEqual(e.filename, ".") |
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| 224 | n/a | else: |
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| 225 | n/a | self.fail("Should have raised OSError") |
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| 226 | n/a | |
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| 227 | n/a | @unittest.skipIf(os.name == 'nt', "test only works on a POSIX-like system") |
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| 228 | n/a | def testOpenDirFD(self): |
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| 229 | n/a | fd = os.open('.', os.O_RDONLY) |
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| 230 | n/a | with self.assertRaises(OSError) as cm: |
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| 231 | n/a | self.FileIO(fd, 'r') |
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| 232 | n/a | os.close(fd) |
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| 233 | n/a | self.assertEqual(cm.exception.errno, errno.EISDIR) |
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| 234 | n/a | |
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| 235 | n/a | #A set of functions testing that we get expected behaviour if someone has |
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| 236 | n/a | #manually closed the internal file descriptor. First, a decorator: |
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| 237 | n/a | def ClosedFD(func): |
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| 238 | n/a | @wraps(func) |
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| 239 | n/a | def wrapper(self): |
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| 240 | n/a | #forcibly close the fd before invoking the problem function |
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| 241 | n/a | f = self.f |
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| 242 | n/a | os.close(f.fileno()) |
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| 243 | n/a | try: |
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| 244 | n/a | func(self, f) |
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| 245 | n/a | finally: |
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| 246 | n/a | try: |
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| 247 | n/a | self.f.close() |
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| 248 | n/a | except OSError: |
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| 249 | n/a | pass |
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| 250 | n/a | return wrapper |
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| 251 | n/a | |
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| 252 | n/a | def ClosedFDRaises(func): |
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| 253 | n/a | @wraps(func) |
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| 254 | n/a | def wrapper(self): |
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| 255 | n/a | #forcibly close the fd before invoking the problem function |
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| 256 | n/a | f = self.f |
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| 257 | n/a | os.close(f.fileno()) |
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| 258 | n/a | try: |
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| 259 | n/a | func(self, f) |
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| 260 | n/a | except OSError as e: |
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| 261 | n/a | self.assertEqual(e.errno, errno.EBADF) |
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| 262 | n/a | else: |
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| 263 | n/a | self.fail("Should have raised OSError") |
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| 264 | n/a | finally: |
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| 265 | n/a | try: |
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| 266 | n/a | self.f.close() |
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| 267 | n/a | except OSError: |
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| 268 | n/a | pass |
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| 269 | n/a | return wrapper |
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| 270 | n/a | |
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| 271 | n/a | @ClosedFDRaises |
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| 272 | n/a | def testErrnoOnClose(self, f): |
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| 273 | n/a | f.close() |
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| 274 | n/a | |
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| 275 | n/a | @ClosedFDRaises |
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| 276 | n/a | def testErrnoOnClosedWrite(self, f): |
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| 277 | n/a | f.write(b'a') |
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| 278 | n/a | |
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| 279 | n/a | @ClosedFDRaises |
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| 280 | n/a | def testErrnoOnClosedSeek(self, f): |
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| 281 | n/a | f.seek(0) |
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| 282 | n/a | |
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| 283 | n/a | @ClosedFDRaises |
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| 284 | n/a | def testErrnoOnClosedTell(self, f): |
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| 285 | n/a | f.tell() |
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| 286 | n/a | |
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| 287 | n/a | @ClosedFDRaises |
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| 288 | n/a | def testErrnoOnClosedTruncate(self, f): |
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| 289 | n/a | f.truncate(0) |
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| 290 | n/a | |
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| 291 | n/a | @ClosedFD |
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| 292 | n/a | def testErrnoOnClosedSeekable(self, f): |
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| 293 | n/a | f.seekable() |
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| 294 | n/a | |
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| 295 | n/a | @ClosedFD |
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| 296 | n/a | def testErrnoOnClosedReadable(self, f): |
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| 297 | n/a | f.readable() |
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| 298 | n/a | |
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| 299 | n/a | @ClosedFD |
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| 300 | n/a | def testErrnoOnClosedWritable(self, f): |
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| 301 | n/a | f.writable() |
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| 302 | n/a | |
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| 303 | n/a | @ClosedFD |
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| 304 | n/a | def testErrnoOnClosedFileno(self, f): |
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| 305 | n/a | f.fileno() |
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| 306 | n/a | |
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| 307 | n/a | @ClosedFD |
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| 308 | n/a | def testErrnoOnClosedIsatty(self, f): |
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| 309 | n/a | self.assertEqual(f.isatty(), False) |
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| 310 | n/a | |
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| 311 | n/a | def ReopenForRead(self): |
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| 312 | n/a | try: |
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| 313 | n/a | self.f.close() |
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| 314 | n/a | except OSError: |
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| 315 | n/a | pass |
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| 316 | n/a | self.f = self.FileIO(TESTFN, 'r') |
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| 317 | n/a | os.close(self.f.fileno()) |
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| 318 | n/a | return self.f |
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| 319 | n/a | |
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| 320 | n/a | @ClosedFDRaises |
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| 321 | n/a | def testErrnoOnClosedRead(self, f): |
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| 322 | n/a | f = self.ReopenForRead() |
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| 323 | n/a | f.read(1) |
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| 324 | n/a | |
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| 325 | n/a | @ClosedFDRaises |
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| 326 | n/a | def testErrnoOnClosedReadall(self, f): |
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| 327 | n/a | f = self.ReopenForRead() |
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| 328 | n/a | f.readall() |
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| 329 | n/a | |
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| 330 | n/a | @ClosedFDRaises |
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| 331 | n/a | def testErrnoOnClosedReadinto(self, f): |
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| 332 | n/a | f = self.ReopenForRead() |
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| 333 | n/a | a = array('b', b'x'*10) |
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| 334 | n/a | f.readinto(a) |
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| 335 | n/a | |
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| 336 | n/a | class CAutoFileTests(AutoFileTests, unittest.TestCase): |
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| 337 | n/a | FileIO = _io.FileIO |
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| 338 | n/a | modulename = '_io' |
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| 339 | n/a | |
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| 340 | n/a | class PyAutoFileTests(AutoFileTests, unittest.TestCase): |
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| 341 | n/a | FileIO = _pyio.FileIO |
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| 342 | n/a | modulename = '_pyio' |
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| 343 | n/a | |
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| 344 | n/a | |
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| 345 | n/a | class OtherFileTests: |
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| 346 | n/a | |
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| 347 | n/a | def testAbles(self): |
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| 348 | n/a | try: |
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| 349 | n/a | f = self.FileIO(TESTFN, "w") |
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| 350 | n/a | self.assertEqual(f.readable(), False) |
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| 351 | n/a | self.assertEqual(f.writable(), True) |
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| 352 | n/a | self.assertEqual(f.seekable(), True) |
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| 353 | n/a | f.close() |
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| 354 | n/a | |
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| 355 | n/a | f = self.FileIO(TESTFN, "r") |
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| 356 | n/a | self.assertEqual(f.readable(), True) |
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| 357 | n/a | self.assertEqual(f.writable(), False) |
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| 358 | n/a | self.assertEqual(f.seekable(), True) |
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| 359 | n/a | f.close() |
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| 360 | n/a | |
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| 361 | n/a | f = self.FileIO(TESTFN, "a+") |
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| 362 | n/a | self.assertEqual(f.readable(), True) |
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| 363 | n/a | self.assertEqual(f.writable(), True) |
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| 364 | n/a | self.assertEqual(f.seekable(), True) |
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| 365 | n/a | self.assertEqual(f.isatty(), False) |
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| 366 | n/a | f.close() |
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| 367 | n/a | |
|---|
| 368 | n/a | if sys.platform != "win32": |
|---|
| 369 | n/a | try: |
|---|
| 370 | n/a | f = self.FileIO("/dev/tty", "a") |
|---|
| 371 | n/a | except OSError: |
|---|
| 372 | n/a | # When run in a cron job there just aren't any |
|---|
| 373 | n/a | # ttys, so skip the test. This also handles other |
|---|
| 374 | n/a | # OS'es that don't support /dev/tty. |
|---|
| 375 | n/a | pass |
|---|
| 376 | n/a | else: |
|---|
| 377 | n/a | self.assertEqual(f.readable(), False) |
|---|
| 378 | n/a | self.assertEqual(f.writable(), True) |
|---|
| 379 | n/a | if sys.platform != "darwin" and \ |
|---|
| 380 | n/a | 'bsd' not in sys.platform and \ |
|---|
| 381 | n/a | not sys.platform.startswith(('sunos', 'aix')): |
|---|
| 382 | n/a | # Somehow /dev/tty appears seekable on some BSDs |
|---|
| 383 | n/a | self.assertEqual(f.seekable(), False) |
|---|
| 384 | n/a | self.assertEqual(f.isatty(), True) |
|---|
| 385 | n/a | f.close() |
|---|
| 386 | n/a | finally: |
|---|
| 387 | n/a | os.unlink(TESTFN) |
|---|
| 388 | n/a | |
|---|
| 389 | n/a | def testInvalidModeStrings(self): |
|---|
| 390 | n/a | # check invalid mode strings |
|---|
| 391 | n/a | for mode in ("", "aU", "wU+", "rw", "rt"): |
|---|
| 392 | n/a | try: |
|---|
| 393 | n/a | f = self.FileIO(TESTFN, mode) |
|---|
| 394 | n/a | except ValueError: |
|---|
| 395 | n/a | pass |
|---|
| 396 | n/a | else: |
|---|
| 397 | n/a | f.close() |
|---|
| 398 | n/a | self.fail('%r is an invalid file mode' % mode) |
|---|
| 399 | n/a | |
|---|
| 400 | n/a | def testModeStrings(self): |
|---|
| 401 | n/a | # test that the mode attribute is correct for various mode strings |
|---|
| 402 | n/a | # given as init args |
|---|
| 403 | n/a | try: |
|---|
| 404 | n/a | for modes in [('w', 'wb'), ('wb', 'wb'), ('wb+', 'rb+'), |
|---|
| 405 | n/a | ('w+b', 'rb+'), ('a', 'ab'), ('ab', 'ab'), |
|---|
| 406 | n/a | ('ab+', 'ab+'), ('a+b', 'ab+'), ('r', 'rb'), |
|---|
| 407 | n/a | ('rb', 'rb'), ('rb+', 'rb+'), ('r+b', 'rb+')]: |
|---|
| 408 | n/a | # read modes are last so that TESTFN will exist first |
|---|
| 409 | n/a | with self.FileIO(TESTFN, modes[0]) as f: |
|---|
| 410 | n/a | self.assertEqual(f.mode, modes[1]) |
|---|
| 411 | n/a | finally: |
|---|
| 412 | n/a | if os.path.exists(TESTFN): |
|---|
| 413 | n/a | os.unlink(TESTFN) |
|---|
| 414 | n/a | |
|---|
| 415 | n/a | def testUnicodeOpen(self): |
|---|
| 416 | n/a | # verify repr works for unicode too |
|---|
| 417 | n/a | f = self.FileIO(str(TESTFN), "w") |
|---|
| 418 | n/a | f.close() |
|---|
| 419 | n/a | os.unlink(TESTFN) |
|---|
| 420 | n/a | |
|---|
| 421 | n/a | def testBytesOpen(self): |
|---|
| 422 | n/a | # Opening a bytes filename |
|---|
| 423 | n/a | try: |
|---|
| 424 | n/a | fn = TESTFN.encode("ascii") |
|---|
| 425 | n/a | except UnicodeEncodeError: |
|---|
| 426 | n/a | self.skipTest('could not encode %r to ascii' % TESTFN) |
|---|
| 427 | n/a | f = self.FileIO(fn, "w") |
|---|
| 428 | n/a | try: |
|---|
| 429 | n/a | f.write(b"abc") |
|---|
| 430 | n/a | f.close() |
|---|
| 431 | n/a | with open(TESTFN, "rb") as f: |
|---|
| 432 | n/a | self.assertEqual(f.read(), b"abc") |
|---|
| 433 | n/a | finally: |
|---|
| 434 | n/a | os.unlink(TESTFN) |
|---|
| 435 | n/a | |
|---|
| 436 | n/a | @unittest.skipIf(sys.getfilesystemencoding() != 'utf-8', |
|---|
| 437 | n/a | "test only works for utf-8 filesystems") |
|---|
| 438 | n/a | def testUtf8BytesOpen(self): |
|---|
| 439 | n/a | # Opening a UTF-8 bytes filename |
|---|
| 440 | n/a | try: |
|---|
| 441 | n/a | fn = TESTFN_UNICODE.encode("utf-8") |
|---|
| 442 | n/a | except UnicodeEncodeError: |
|---|
| 443 | n/a | self.skipTest('could not encode %r to utf-8' % TESTFN_UNICODE) |
|---|
| 444 | n/a | f = self.FileIO(fn, "w") |
|---|
| 445 | n/a | try: |
|---|
| 446 | n/a | f.write(b"abc") |
|---|
| 447 | n/a | f.close() |
|---|
| 448 | n/a | with open(TESTFN_UNICODE, "rb") as f: |
|---|
| 449 | n/a | self.assertEqual(f.read(), b"abc") |
|---|
| 450 | n/a | finally: |
|---|
| 451 | n/a | os.unlink(TESTFN_UNICODE) |
|---|
| 452 | n/a | |
|---|
| 453 | n/a | def testConstructorHandlesNULChars(self): |
|---|
| 454 | n/a | fn_with_NUL = 'foo\0bar' |
|---|
| 455 | n/a | self.assertRaises(ValueError, self.FileIO, fn_with_NUL, 'w') |
|---|
| 456 | n/a | self.assertRaises(ValueError, self.FileIO, bytes(fn_with_NUL, 'ascii'), 'w') |
|---|
| 457 | n/a | |
|---|
| 458 | n/a | def testInvalidFd(self): |
|---|
| 459 | n/a | self.assertRaises(ValueError, self.FileIO, -10) |
|---|
| 460 | n/a | self.assertRaises(OSError, self.FileIO, make_bad_fd()) |
|---|
| 461 | n/a | if sys.platform == 'win32': |
|---|
| 462 | n/a | import msvcrt |
|---|
| 463 | n/a | self.assertRaises(OSError, msvcrt.get_osfhandle, make_bad_fd()) |
|---|
| 464 | n/a | |
|---|
| 465 | n/a | def testBadModeArgument(self): |
|---|
| 466 | n/a | # verify that we get a sensible error message for bad mode argument |
|---|
| 467 | n/a | bad_mode = "qwerty" |
|---|
| 468 | n/a | try: |
|---|
| 469 | n/a | f = self.FileIO(TESTFN, bad_mode) |
|---|
| 470 | n/a | except ValueError as msg: |
|---|
| 471 | n/a | if msg.args[0] != 0: |
|---|
| 472 | n/a | s = str(msg) |
|---|
| 473 | n/a | if TESTFN in s or bad_mode not in s: |
|---|
| 474 | n/a | self.fail("bad error message for invalid mode: %s" % s) |
|---|
| 475 | n/a | # if msg.args[0] == 0, we're probably on Windows where there may be |
|---|
| 476 | n/a | # no obvious way to discover why open() failed. |
|---|
| 477 | n/a | else: |
|---|
| 478 | n/a | f.close() |
|---|
| 479 | n/a | self.fail("no error for invalid mode: %s" % bad_mode) |
|---|
| 480 | n/a | |
|---|
| 481 | n/a | def testTruncate(self): |
|---|
| 482 | n/a | f = self.FileIO(TESTFN, 'w') |
|---|
| 483 | n/a | f.write(bytes(bytearray(range(10)))) |
|---|
| 484 | n/a | self.assertEqual(f.tell(), 10) |
|---|
| 485 | n/a | f.truncate(5) |
|---|
| 486 | n/a | self.assertEqual(f.tell(), 10) |
|---|
| 487 | n/a | self.assertEqual(f.seek(0, io.SEEK_END), 5) |
|---|
| 488 | n/a | f.truncate(15) |
|---|
| 489 | n/a | self.assertEqual(f.tell(), 5) |
|---|
| 490 | n/a | self.assertEqual(f.seek(0, io.SEEK_END), 15) |
|---|
| 491 | n/a | f.close() |
|---|
| 492 | n/a | |
|---|
| 493 | n/a | def testTruncateOnWindows(self): |
|---|
| 494 | n/a | def bug801631(): |
|---|
| 495 | n/a | # SF bug <http://www.python.org/sf/801631> |
|---|
| 496 | n/a | # "file.truncate fault on windows" |
|---|
| 497 | n/a | f = self.FileIO(TESTFN, 'w') |
|---|
| 498 | n/a | f.write(bytes(range(11))) |
|---|
| 499 | n/a | f.close() |
|---|
| 500 | n/a | |
|---|
| 501 | n/a | f = self.FileIO(TESTFN,'r+') |
|---|
| 502 | n/a | data = f.read(5) |
|---|
| 503 | n/a | if data != bytes(range(5)): |
|---|
| 504 | n/a | self.fail("Read on file opened for update failed %r" % data) |
|---|
| 505 | n/a | if f.tell() != 5: |
|---|
| 506 | n/a | self.fail("File pos after read wrong %d" % f.tell()) |
|---|
| 507 | n/a | |
|---|
| 508 | n/a | f.truncate() |
|---|
| 509 | n/a | if f.tell() != 5: |
|---|
| 510 | n/a | self.fail("File pos after ftruncate wrong %d" % f.tell()) |
|---|
| 511 | n/a | |
|---|
| 512 | n/a | f.close() |
|---|
| 513 | n/a | size = os.path.getsize(TESTFN) |
|---|
| 514 | n/a | if size != 5: |
|---|
| 515 | n/a | self.fail("File size after ftruncate wrong %d" % size) |
|---|
| 516 | n/a | |
|---|
| 517 | n/a | try: |
|---|
| 518 | n/a | bug801631() |
|---|
| 519 | n/a | finally: |
|---|
| 520 | n/a | os.unlink(TESTFN) |
|---|
| 521 | n/a | |
|---|
| 522 | n/a | def testAppend(self): |
|---|
| 523 | n/a | try: |
|---|
| 524 | n/a | f = open(TESTFN, 'wb') |
|---|
| 525 | n/a | f.write(b'spam') |
|---|
| 526 | n/a | f.close() |
|---|
| 527 | n/a | f = open(TESTFN, 'ab') |
|---|
| 528 | n/a | f.write(b'eggs') |
|---|
| 529 | n/a | f.close() |
|---|
| 530 | n/a | f = open(TESTFN, 'rb') |
|---|
| 531 | n/a | d = f.read() |
|---|
| 532 | n/a | f.close() |
|---|
| 533 | n/a | self.assertEqual(d, b'spameggs') |
|---|
| 534 | n/a | finally: |
|---|
| 535 | n/a | try: |
|---|
| 536 | n/a | os.unlink(TESTFN) |
|---|
| 537 | n/a | except: |
|---|
| 538 | n/a | pass |
|---|
| 539 | n/a | |
|---|
| 540 | n/a | def testInvalidInit(self): |
|---|
| 541 | n/a | self.assertRaises(TypeError, self.FileIO, "1", 0, 0) |
|---|
| 542 | n/a | |
|---|
| 543 | n/a | def testWarnings(self): |
|---|
| 544 | n/a | with check_warnings(quiet=True) as w: |
|---|
| 545 | n/a | self.assertEqual(w.warnings, []) |
|---|
| 546 | n/a | self.assertRaises(TypeError, self.FileIO, []) |
|---|
| 547 | n/a | self.assertEqual(w.warnings, []) |
|---|
| 548 | n/a | self.assertRaises(ValueError, self.FileIO, "/some/invalid/name", "rt") |
|---|
| 549 | n/a | self.assertEqual(w.warnings, []) |
|---|
| 550 | n/a | |
|---|
| 551 | n/a | def testUnclosedFDOnException(self): |
|---|
| 552 | n/a | class MyException(Exception): pass |
|---|
| 553 | n/a | class MyFileIO(self.FileIO): |
|---|
| 554 | n/a | def __setattr__(self, name, value): |
|---|
| 555 | n/a | if name == "name": |
|---|
| 556 | n/a | raise MyException("blocked setting name") |
|---|
| 557 | n/a | return super(MyFileIO, self).__setattr__(name, value) |
|---|
| 558 | n/a | fd = os.open(__file__, os.O_RDONLY) |
|---|
| 559 | n/a | self.assertRaises(MyException, MyFileIO, fd) |
|---|
| 560 | n/a | os.close(fd) # should not raise OSError(EBADF) |
|---|
| 561 | n/a | |
|---|
| 562 | n/a | class COtherFileTests(OtherFileTests, unittest.TestCase): |
|---|
| 563 | n/a | FileIO = _io.FileIO |
|---|
| 564 | n/a | modulename = '_io' |
|---|
| 565 | n/a | |
|---|
| 566 | n/a | @cpython_only |
|---|
| 567 | n/a | def testInvalidFd_overflow(self): |
|---|
| 568 | n/a | # Issue 15989 |
|---|
| 569 | n/a | import _testcapi |
|---|
| 570 | n/a | self.assertRaises(TypeError, self.FileIO, _testcapi.INT_MAX + 1) |
|---|
| 571 | n/a | self.assertRaises(TypeError, self.FileIO, _testcapi.INT_MIN - 1) |
|---|
| 572 | n/a | |
|---|
| 573 | n/a | class PyOtherFileTests(OtherFileTests, unittest.TestCase): |
|---|
| 574 | n/a | FileIO = _pyio.FileIO |
|---|
| 575 | n/a | modulename = '_pyio' |
|---|
| 576 | n/a | |
|---|
| 577 | n/a | |
|---|
| 578 | n/a | def test_main(): |
|---|
| 579 | n/a | # Historically, these tests have been sloppy about removing TESTFN. |
|---|
| 580 | n/a | # So get rid of it no matter what. |
|---|
| 581 | n/a | try: |
|---|
| 582 | n/a | run_unittest(CAutoFileTests, PyAutoFileTests, |
|---|
| 583 | n/a | COtherFileTests, PyOtherFileTests) |
|---|
| 584 | n/a | finally: |
|---|
| 585 | n/a | if os.path.exists(TESTFN): |
|---|
| 586 | n/a | os.unlink(TESTFN) |
|---|
| 587 | n/a | |
|---|
| 588 | n/a | if __name__ == '__main__': |
|---|
| 589 | n/a | test_main() |
|---|
