Test more split argument combinations:
1) multi-char separator
2) multi-char separator that only occurs at last position
3) all of the above with mixed Unicode and 8-bit-string arguments
diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py
index 5f79101..05aecd8 100644
--- a/Lib/test/test_unicode.py
+++ b/Lib/test/test_unicode.py
@@ -67,6 +67,13 @@
test('split', u'a b c d', [u'a b c d'], None, 0)
test('split', u'a b c d', [u'a', u'b', u'c d'], None, 2)
test('split', u'a b c d ', [u'a', u'b', u'c', u'd'])
+test('split', u'a//b//c//d', [u'a', u'b', u'c', u'd'], u'//')
+test('split', u'a//b//c//d', [u'a', u'b', u'c', u'd'], '//')
+test('split', 'a//b//c//d', [u'a', u'b', u'c', u'd'], u'//')
+test('split', u'endcase test', [u'endcase ', u''], u'test')
+test('split', u'endcase test', [u'endcase ', u''], 'test')
+test('split', 'endcase test', [u'endcase ', u''], u'test')
+
# join now works with any sequence type
class Sequence: