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Add tests checking the CSV module's ability to handle 

embedded newlines in quoted field values.
This commit is contained in:
R. David Murray 2009-04-01 21:26:18 +00:00
parent cafc225f54
commit 3864459196
1 changed files with 18 additions and 0 deletions
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18
Lib/test/test_csv.py
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@ -166,6 +166,8 @@ class Test_Csv(unittest.TestCase):
quoting = csv.QUOTE_NONNUMERIC)
self._write_test(['a',1,'p,q'], '"a","1","p,q"',
quoting = csv.QUOTE_ALL)
self._write_test(['a\nb',1], '"a\nb","1"',
quoting = csv.QUOTE_ALL)
def test_write_escape(self):
self._write_test(['a',1,'p,q'], 'a,1,"p,q"',
@ -245,6 +247,7 @@ class Test_Csv(unittest.TestCase):
# will this fail where locale uses comma for decimals?
self._read_test([',3,"5",7.3, 9'], [['', 3, '5', 7.3, 9]],
quoting=csv.QUOTE_NONNUMERIC)
self._read_test(['"a\nb", 7'], [['a\nb', ' 7']])
self.assertRaises(ValueError, self._read_test,
['abc,3'], [[]],
quoting=csv.QUOTE_NONNUMERIC)
@ -282,6 +285,21 @@ class Test_Csv(unittest.TestCase):
self.assertRaises(StopIteration, r.next)
self.assertEqual(r.line_num, 3)
def test_roundtrip_quoteed_newlines(self):
fd, name = tempfile.mkstemp()
fileobj = os.fdopen(fd, "w+b")
try:
writer = csv.writer(fileobj)
self.assertRaises(TypeError, writer.writerows, None)
rows = [['a\nb','b'],['c','x\r\nd']]
writer.writerows(rows)
fileobj.seek(0)
for i, row in enumerate(csv.reader(fileobj)):
self.assertEqual(row, rows[i])
finally:
fileobj.close()
os.unlink(name)
class TestDialectRegistry(unittest.TestCase):
def test_registry_badargs(self):
self.assertRaises(TypeError, csv.list_dialects, None)