parametrize over separator, keep date hardcoded

dateutil/test/test_parser.py

@@ -165,24 +165,20 @@ def test_parser_default(parsable_text, expected_datetime, assertion_message):
     assert parse(parsable_text, default=datetime(2003, 9, 25)) == expected_datetime, assertion_message
 
 
-@pytest.mark.parametrize('dstr,expected', [
-    ("10-09-2003", datetime(2003, 9, 10)),
-    ("10.09.2003", datetime(2003, 9, 10)),
-    ("10/09/2003", datetime(2003, 9, 10)),
-    ("10 09 2003", datetime(2003, 9, 10)),
-])
-def test_parse_dayfirst(dstr, expected):
+@pytest.mark.parametrize('sep', ['-', '.', '/', ' '])
+def test_parse_dayfirst(sep):
+    expected = datetime(2003, 9, 10)
+    fmt = sep.join(['%d', '%m', '%Y'])
+    dstr = expected.strftime(fmt)
     result = parse(dstr, dayfirst=True)
     assert result == expected
 
 
-@pytest.mark.parametrize('dstr,expected', [
-    ("10 09 03", datetime(2010, 9, 3)),
-    ("10-09-03", datetime(2010, 9, 3)),
-    ("10.09.03", datetime(2010, 9, 3)),
-    ("10/09/03", datetime(2010, 9, 3)),
-])
-def test_parse_yearfirst(dstr, expected):
+@pytest.mark.parametrize('sep', ['-', '.', '/', ' '])
+def test_parse_yearfirst(sep):
+    expected = datetime(2010, 9, 3)
+    fmt = sep.join(['%Y', '%m', '%d'])
+    dstr = expected.strftime(fmt)
     result = parse(dstr, yearfirst=True)
     assert result == expected