Add tests for __index__

HyeockJinKim · HyeockJinKim · commit 9cc7591414d2 · 2019-09-29T21:59:22.000+09:00
diff --git a/py/tests/range.py b/py/tests/range.py
@@ -116,4 +116,24 @@ def __index__(self):
 assert a[b:10] == a[1:10]
 assert a[10:b:-1] == a[10:1:-1]
 
+class NonIntegerIndex:
+    def __index__(self):
+        return 1.1
+
+a = range(10)
+b = NonIntegerIndex()
+try:
+    a[b]
+except TypeError:
+    pass
+else:
+    assert False, "TypeError not raised"
+
+try:
+    a[b:10]
+except TypeError:
+    pass
+else:
+    assert False, "TypeError not raised"
+
 doc="finished"
