Mark 'abc'.expandtab() optimization as specific to CPython
Improve also str.replace(a, a) test
diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py
index 14d3fa6..27df862 100644
--- a/Lib/test/test_unicode.py
+++ b/Lib/test/test_unicode.py
@@ -277,9 +277,9 @@
@support.cpython_only
def test_replace_id(self):
- a = 'a' # single ascii letters are singletons
- text = 'abc'
- self.assertIs(text.replace('a', 'a'), text)
+ pattern = 'abc'
+ text = 'abc def'
+ self.assertIs(text.replace(pattern, pattern), text)
def test_bytes_comparison(self):
with support.check_warnings():
@@ -1579,6 +1579,7 @@
return
self.assertRaises(OverflowError, 't\tt\t'.expandtabs, sys.maxsize)
+ @support.cpython_only
def test_expandtabs_optimization(self):
s = 'abc'
self.assertIs(s.expandtabs(), s)