Issue #18829: Add tests for the csv module for invalid characters (delimiter,
escapechar, quotechar)
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@ -828,6 +828,19 @@ class TestDialectValidity(unittest.TestCase):
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self.assertEqual(str(cm.exception),
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self.assertEqual(str(cm.exception),
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'"lineterminator" must be a string')
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'"lineterminator" must be a string')
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def test_invalid_chars(self):
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def create_invalid(field_name, value):
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class mydialect(csv.Dialect):
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pass
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setattr(mydialect, field_name, value)
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d = mydialect()
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for field_name in ("delimiter", "escapechar", "quotechar"):
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self.assertRaises(csv.Error, create_invalid, field_name, "")
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self.assertRaises(csv.Error, create_invalid, field_name, "abc")
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self.assertRaises(csv.Error, create_invalid, field_name, b'x')
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self.assertRaises(csv.Error, create_invalid, field_name, 5)
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class TestSniffer(unittest.TestCase):
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class TestSniffer(unittest.TestCase):
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sample1 = """\
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sample1 = """\
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