floordiv addtl tests

Author: TomAugspurger

pandas/tests/test_index.py

@@ -3464,6 +3464,26 @@ def setUp(self):
     def create_index(self):
         return RangeIndex(5)
 
+    def test_binops(self):
+        import operator as op
+        from itertools import combinations
+        ops = [op.add, op.sub, op.mul, op.floordiv, op.truediv, pow]
+        scalars = [-1, 1, 2]
+        idxs = [RangeIndex(0, 10, 1),
+                RangeIndex(0, 20, 2),
+                RangeIndex(-10, 10, 2),
+                RangeIndex(5, -5, -1)]
+        for op in ops:
+            for a, b in combinations(idxs, 2):
+                result = op(a, b)
+                expected = op(Int64Index(a), Int64Index(b))
+                tm.assert_index_equal(result, expected)
+            for idx in idxs:
+                for scalar in scalars:
+                    result = op(idx, scalar)
+                    expected = op(Int64Index(idx), scalar)
+                    tm.assert_index_equal(result, expected)
+
     def test_too_many_names(self):
         def testit():
             self.index.names = ["roger", "harold"]