Unicode replace() method with empty pattern argument should fail, like
it does for 8-bit strings.
diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py
index 429b673..a915b2e 100644
--- a/Lib/test/test_unicode.py
+++ b/Lib/test/test_unicode.py
@@ -206,6 +206,12 @@
test('replace', u'one!two!three!', u'one@two@three@', u'!', u'@')
test('replace', u'one!two!three!', u'one!two!three!', u'x', u'@')
test('replace', u'one!two!three!', u'one!two!three!', u'x', u'@', 2)
+try:
+ u"abc".replace(u"", u"x")
+except ValueError:
+ pass
+else:
+ raise TestFailed, "u.replace('', ...) should raise ValueError"
test('startswith', u'hello', True, u'he')
test('startswith', u'hello', True, u'hello')