|
| 1 | +import unittest |
| 2 | +from _apple_support import SystemLog |
| 3 | +from test.support import is_apple |
| 4 | +from unittest.mock import Mock, call |
| 5 | + |
| 6 | +if not is_apple: |
| 7 | + raise unittest.SkipTest("Apple-specific") |
| 8 | + |
| 9 | + |
| 10 | +# Test redirection of stdout and stderr to the Apple system log. |
| 11 | +class TestAppleSystemLogOutput(unittest.TestCase): |
| 12 | + maxDiff = None |
| 13 | + |
| 14 | + def assert_writes(self, output): |
| 15 | + self.assertEqual( |
| 16 | + self.log_write.mock_calls, |
| 17 | + [ |
| 18 | + call(self.log_level, line) |
| 19 | + for line in output |
| 20 | + ] |
| 21 | + ) |
| 22 | + |
| 23 | + self.log_write.reset_mock() |
| 24 | + |
| 25 | + def setUp(self): |
| 26 | + self.log_write = Mock() |
| 27 | + self.log_level = 42 |
| 28 | + self.log = SystemLog(self.log_write, self.log_level, errors="replace") |
| 29 | + |
| 30 | + def test_repr(self): |
| 31 | + self.assertEqual(repr(self.log), "<SystemLog (level 42)>") |
| 32 | + self.assertEqual(repr(self.log.buffer), "<LogStream (level 42)>") |
| 33 | + |
| 34 | + def test_log_config(self): |
| 35 | + self.assertIs(self.log.writable(), True) |
| 36 | + self.assertIs(self.log.readable(), False) |
| 37 | + |
| 38 | + self.assertEqual("UTF-8", self.log.encoding) |
| 39 | + self.assertEqual("replace", self.log.errors) |
| 40 | + |
| 41 | + self.assertIs(self.log.line_buffering, True) |
| 42 | + self.assertIs(self.log.write_through, False) |
| 43 | + |
| 44 | + def test_empty_str(self): |
| 45 | + self.log.write("") |
| 46 | + self.log.flush() |
| 47 | + |
| 48 | + self.assert_writes([]) |
| 49 | + |
| 50 | + def test_simple_str(self): |
| 51 | + self.log.write("hello world\n") |
| 52 | + |
| 53 | + self.assert_writes([b"hello world\n"]) |
| 54 | + |
| 55 | + def test_buffered_str(self): |
| 56 | + self.log.write("h") |
| 57 | + self.log.write("ello") |
| 58 | + self.log.write(" ") |
| 59 | + self.log.write("world\n") |
| 60 | + self.log.write("goodbye.") |
| 61 | + self.log.flush() |
| 62 | + |
| 63 | + self.assert_writes([b"hello world\n", b"goodbye."]) |
| 64 | + |
| 65 | + def test_manual_flush(self): |
| 66 | + self.log.write("Hello") |
| 67 | + |
| 68 | + self.assert_writes([]) |
| 69 | + |
| 70 | + self.log.write(" world\nHere for a while...\nGoodbye") |
| 71 | + self.assert_writes([b"Hello world\n", b"Here for a while...\n"]) |
| 72 | + |
| 73 | + self.log.write(" world\nHello again") |
| 74 | + self.assert_writes([b"Goodbye world\n"]) |
| 75 | + |
| 76 | + self.log.flush() |
| 77 | + self.assert_writes([b"Hello again"]) |
| 78 | + |
| 79 | + def test_non_ascii(self): |
| 80 | + # Spanish |
| 81 | + self.log.write("ol\u00e9\n") |
| 82 | + self.assert_writes([b"ol\xc3\xa9\n"]) |
| 83 | + |
| 84 | + # Chinese |
| 85 | + self.log.write("\u4e2d\u6587\n") |
| 86 | + self.assert_writes([b"\xe4\xb8\xad\xe6\x96\x87\n"]) |
| 87 | + |
| 88 | + # Printing Non-BMP emoji |
| 89 | + self.log.write("\U0001f600\n") |
| 90 | + self.assert_writes([b"\xf0\x9f\x98\x80\n"]) |
| 91 | + |
| 92 | + # Non-encodable surrogates are replaced |
| 93 | + self.log.write("\ud800\udc00\n") |
| 94 | + self.assert_writes([b"??\n"]) |
| 95 | + |
| 96 | + def test_modified_null(self): |
| 97 | + # Null characters are logged using "modified UTF-8". |
| 98 | + self.log.write("\u0000\n") |
| 99 | + self.assert_writes([b"\xc0\x80\n"]) |
| 100 | + self.log.write("a\u0000\n") |
| 101 | + self.assert_writes([b"a\xc0\x80\n"]) |
| 102 | + self.log.write("\u0000b\n") |
| 103 | + self.assert_writes([b"\xc0\x80b\n"]) |
| 104 | + self.log.write("a\u0000b\n") |
| 105 | + self.assert_writes([b"a\xc0\x80b\n"]) |
| 106 | + |
| 107 | + def test_nonstandard_str(self): |
| 108 | + # String subclasses are accepted, but they should be converted |
| 109 | + # to a standard str without calling any of their methods. |
| 110 | + class CustomStr(str): |
| 111 | + def splitlines(self, *args, **kwargs): |
| 112 | + raise AssertionError() |
| 113 | + |
| 114 | + def __len__(self): |
| 115 | + raise AssertionError() |
| 116 | + |
| 117 | + def __str__(self): |
| 118 | + raise AssertionError() |
| 119 | + |
| 120 | + self.log.write(CustomStr("custom\n")) |
| 121 | + self.assert_writes([b"custom\n"]) |
| 122 | + |
| 123 | + def test_non_str(self): |
| 124 | + # Non-string classes are not accepted. |
| 125 | + for obj in [b"", b"hello", None, 42]: |
| 126 | + with self.subTest(obj=obj): |
| 127 | + with self.assertRaisesRegex( |
| 128 | + TypeError, |
| 129 | + fr"write\(\) argument must be str, not " |
| 130 | + fr"{type(obj).__name__}" |
| 131 | + ): |
| 132 | + self.log.write(obj) |
| 133 | + |
| 134 | + def test_byteslike_in_buffer(self): |
| 135 | + # The underlying buffer *can* accept bytes-like objects |
| 136 | + self.log.buffer.write(bytearray(b"hello")) |
| 137 | + self.log.flush() |
| 138 | + |
| 139 | + self.log.buffer.write(b"") |
| 140 | + self.log.flush() |
| 141 | + |
| 142 | + self.log.buffer.write(b"goodbye") |
| 143 | + self.log.flush() |
| 144 | + |
| 145 | + self.assert_writes([b"hello", b"goodbye"]) |
| 146 | + |
| 147 | + def test_non_byteslike_in_buffer(self): |
| 148 | + for obj in ["hello", None, 42]: |
| 149 | + with self.subTest(obj=obj): |
| 150 | + with self.assertRaisesRegex( |
| 151 | + TypeError, |
| 152 | + fr"write\(\) argument must be bytes-like, not " |
| 153 | + fr"{type(obj).__name__}" |
| 154 | + ): |
| 155 | + self.log.buffer.write(obj) |
0 commit comments