[2.7] bpo-30157: Fix csv.Sniffer.sniff() regex pattern. (GH-5601) (GH-5604)
Co-authored-by: Jake Davis <jcdavis@awedge.net>.
(cherry picked from commit 2411292ba8155327125d8a1da8a4c9fa003d5909)
diff --git a/Lib/test/test_csv.py b/Lib/test/test_csv.py
index d456759..88d5af7 100644
--- a/Lib/test/test_csv.py
+++ b/Lib/test/test_csv.py
@@ -1036,6 +1036,15 @@
self.assertEqual(sniffer.has_header(self.header2 + self.sample8),
True)
+ def test_guess_quote_and_delimiter(self):
+ sniffer = csv.Sniffer()
+ for header in (";'123;4';", "'123;4';", ";'123;4'", "'123;4'"):
+ dialect = sniffer.sniff(header, ",;")
+ self.assertEqual(dialect.delimiter, ';')
+ self.assertEqual(dialect.quotechar, "'")
+ self.assertIs(dialect.doublequote, False)
+ self.assertIs(dialect.skipinitialspace, False)
+
def test_sniff(self):
sniffer = csv.Sniffer()
dialect = sniffer.sniff(self.sample1)