diff options
Diffstat (limited to 'Lib/test/test_csv.py')
| -rw-r--r-- | Lib/test/test_csv.py | 73 |
1 files changed, 67 insertions, 6 deletions
diff --git a/Lib/test/test_csv.py b/Lib/test/test_csv.py index 3038369..66c1375 100644 --- a/Lib/test/test_csv.py +++ b/Lib/test/test_csv.py @@ -46,6 +46,20 @@ class Test_Csv(unittest.TestCase): quoting=csv.QUOTE_ALL, quotechar=None) self.assertRaises(TypeError, ctor, arg, quoting=csv.QUOTE_NONE, quotechar='') + ctor(arg, delimiter=' ') + ctor(arg, escapechar=' ') + ctor(arg, quotechar=' ') + ctor(arg, delimiter='\t', skipinitialspace=True) + ctor(arg, escapechar='\t', skipinitialspace=True) + ctor(arg, quotechar='\t', skipinitialspace=True) + ctor(arg, delimiter=' ', skipinitialspace=True) + ctor(arg, delimiter='^') + ctor(arg, escapechar='^') + ctor(arg, quotechar='^') + ctor(arg, delimiter='\x85') + ctor(arg, escapechar='\x85') + ctor(arg, quotechar='\x85') + ctor(arg, lineterminator='\x85') def test_reader_arg_valid(self): self._test_arg_valid(csv.reader, []) @@ -152,9 +166,6 @@ class Test_Csv(unittest.TestCase): def test_write_arg_valid(self): self._write_error_test(csv.Error, None) - self._write_test((), '') - self._write_test([None], '""') - self._write_error_test(csv.Error, [None], quoting = csv.QUOTE_NONE) # Check that exceptions are passed up the chain self._write_error_test(OSError, BadIterable()) class BadList: @@ -168,7 +179,6 @@ class Test_Csv(unittest.TestCase): def __str__(self): raise OSError self._write_error_test(OSError, [BadItem()]) - def test_write_bigfield(self): # This exercises the buffer realloc functionality bigstring = 'X' * 50000 @@ -275,6 +285,49 @@ class Test_Csv(unittest.TestCase): fileobj.seek(0) self.assertEqual(fileobj.read(), 'a\r\n""\r\n') + + def test_write_empty_fields(self): + self._write_test((), '') + self._write_test([''], '""') + self._write_error_test(csv.Error, [''], quoting=csv.QUOTE_NONE) + self._write_test([''], '""', quoting=csv.QUOTE_STRINGS) + self._write_test([''], '""', quoting=csv.QUOTE_NOTNULL) + self._write_test([None], '""') + self._write_error_test(csv.Error, [None], quoting=csv.QUOTE_NONE) + self._write_error_test(csv.Error, [None], quoting=csv.QUOTE_STRINGS) + self._write_error_test(csv.Error, [None], quoting=csv.QUOTE_NOTNULL) + self._write_test(['', ''], ',') + self._write_test([None, None], ',') + + def test_write_empty_fields_space_delimiter(self): + self._write_test([''], '""', delimiter=' ', skipinitialspace=False) + self._write_test([''], '""', delimiter=' ', skipinitialspace=True) + self._write_test([None], '""', delimiter=' ', skipinitialspace=False) + self._write_test([None], '""', delimiter=' ', skipinitialspace=True) + + self._write_test(['', ''], ' ', delimiter=' ', skipinitialspace=False) + self._write_test(['', ''], '"" ""', delimiter=' ', skipinitialspace=True) + self._write_test([None, None], ' ', delimiter=' ', skipinitialspace=False) + self._write_test([None, None], '"" ""', delimiter=' ', skipinitialspace=True) + + self._write_test(['', ''], ' ', delimiter=' ', skipinitialspace=False, + quoting=csv.QUOTE_NONE) + self._write_error_test(csv.Error, ['', ''], + delimiter=' ', skipinitialspace=True, + quoting=csv.QUOTE_NONE) + for quoting in csv.QUOTE_STRINGS, csv.QUOTE_NOTNULL: + self._write_test(['', ''], '"" ""', delimiter=' ', skipinitialspace=False, + quoting=quoting) + self._write_test(['', ''], '"" ""', delimiter=' ', skipinitialspace=True, + quoting=quoting) + + for quoting in csv.QUOTE_NONE, csv.QUOTE_STRINGS, csv.QUOTE_NOTNULL: + self._write_test([None, None], ' ', delimiter=' ', skipinitialspace=False, + quoting=quoting) + self._write_error_test(csv.Error, [None, None], + delimiter=' ', skipinitialspace=True, + quoting=quoting) + def test_writerows_errors(self): with TemporaryFile("w+", encoding="utf-8", newline='') as fileobj: writer = csv.writer(fileobj) @@ -376,6 +429,14 @@ class Test_Csv(unittest.TestCase): [['no space', 'space', 'spaces', '\ttab']], skipinitialspace=True) + def test_read_space_delimiter(self): + self._read_test(['a b', ' a ', ' ', ''], + [['a', '', '', 'b'], ['', '', 'a', '', ''], ['', '', ''], []], + delimiter=' ', skipinitialspace=False) + self._read_test(['a b', ' a ', ' ', ''], + [['a', 'b'], ['a', ''], [''], []], + delimiter=' ', skipinitialspace=True) + def test_read_bigfield(self): # This exercises the buffer realloc functionality and field size # limits. @@ -502,10 +563,10 @@ class TestDialectRegistry(unittest.TestCase): escapechar = "\\" with TemporaryFile("w+", encoding="utf-8") as fileobj: - fileobj.write("abc def\nc1ccccc1 benzene\n") + fileobj.write("abc def\nc1ccccc1 benzene\n") fileobj.seek(0) reader = csv.reader(fileobj, dialect=space()) - self.assertEqual(next(reader), ["abc", "def"]) + self.assertEqual(next(reader), ["abc", "", "", "def"]) self.assertEqual(next(reader), ["c1ccccc1", "benzene"]) def compare_dialect_123(self, expected, *writeargs, **kwwriteargs): |