tests/basics/string_rsplit: Add tests for negative "maxsplit" argument.

dpgeorge · dpgeorge · commit 7400d8876257 · 2017-06-02T13:08:18.000+10:00
diff --git a/tests/basics/string_rsplit.py b/tests/basics/string_rsplit.py
@@ -52,3 +52,7 @@
 print("/*10/*11/*12/*".rsplit("/*", 5))
 
 print(b"abcabc".rsplit(b"bc", 2))
+
+# negative "maxsplit" should delegate to .split()
+print('abaca'.rsplit('a', -1))
+print('abaca'.rsplit('a', -2))
