diff options
| -rw-r--r-- | Lib/test/outstanding_bugs.py | 70 |
1 files changed, 69 insertions, 1 deletions
diff --git a/Lib/test/outstanding_bugs.py b/Lib/test/outstanding_bugs.py index 7c6cd9e..9c75bfc 100644 --- a/Lib/test/outstanding_bugs.py +++ b/Lib/test/outstanding_bugs.py @@ -45,9 +45,77 @@ class TestDifflibLongestMatch(unittest.TestCase): self.assertEquals(aptr, 1) self.assertEquals(bptr, 0) +# test_io +import io +class TextIOWrapperTest(unittest.TestCase): + + def setUp(self): + self.testdata = b"AAA\r\nBBB\rCCC\r\nDDD\nEEE\r\n" + self.normalized = b"AAA\nBBB\nCCC\nDDD\nEEE\n".decode("ASCII") + + def tearDown(self): + test_support.unlink(test_support.TESTFN) + + + def test_issue1395_1(self): + txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ASCII") + + # read one char at a time + reads = "" + while True: + c = txt.read(1) + if not c: + break + reads += c + self.assertEquals(reads, self.normalized) + + def test_issue1395_2(self): + txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ASCII") + txt._CHUNK_SIZE = 4 + + reads = "" + while True: + c = txt.read(4) + if not c: + break + reads += c + self.assertEquals(reads, self.normalized) + + def test_issue1395_3(self): + txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ASCII") + txt._CHUNK_SIZE = 4 + + reads = txt.read(4) + reads += txt.read(4) + reads += txt.readline() + reads += txt.readline() + reads += txt.readline() + self.assertEquals(reads, self.normalized) + + def test_issue1395_4(self): + txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ASCII") + txt._CHUNK_SIZE = 4 + + reads = txt.read(4) + reads += txt.read() + self.assertEquals(reads, self.normalized) + + def test_issue1395_5(self): + txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ASCII") + txt._CHUNK_SIZE = 4 + + reads = txt.read(4) + pos = txt.tell() + txt.seek(0) + txt.seek(pos) + self.assertEquals(txt.read(4), "BBB\n") + + def test_main(): - test_support.run_unittest(TestDifflibLongestMatch) + test_support.run_unittest( + TestDifflibLongestMatch, + TextIOWrapperTest) if __name__ == "__main__": test_main() |