Improve icolumn.py cc 2/4 test_map_column (#416)

Summary:
Pull Request resolved: #416

Pull Request resolved: #406

Improves test coverage for icolumn.py through test_map_column.

Reviewed By: wenleix

Differential Revision: D37492649

fbshipit-source-id: 1decb34edd19ba7a46be5e5dca6067f680c5584d

Author: andrewaikens87

torcharrow/test/test_map_column.py

@@ -63,6 +63,58 @@ def base_test_keys_values_get(self):
         self.assertEqual(list(c.maps.values()), [[123], [45, 67], None])
         self.assertEqual(list(c.maps.get("de", 0)), [0, 45, None])
 
+    def base_test_get_operator(self):
+        col_rep = [
+            {"helsinki": [-1.0, 21.0], "moscow": [-4.0, 24.0]},
+            {},
+            {"nowhere": [], "algiers": [11.0, 25, 2], "kinshasa": [22.0, 26.0]},
+        ]
+        c = ta.column(
+            col_rep,
+            device=self.device,
+        )
+        indicies = [0, 2]
+        expected = [col_rep[i] for i in indicies]
+        result = [c[i] for i in indicies]
+        self.assertEqual(expected, result)
+
+    def base_test_slice_operation(self):
+        col_rep = [
+            {"helsinki": [-1.0, 21.0], "moscow": [-4.0, 24.0]},
+            {},
+            {"nowhere": [], "algiers": [11.0, 25, 2], "kinshasa": [22.0, 26.0]},
+            {"london": [], "new york": [500]},
+        ]
+        c = ta.column(
+            col_rep,
+            device=self.device,
+        )
+        expected_slice_every_other = col_rep[0:4:2]
+        result_every_other = c[0:4:2]
+        self.assertEqual(expected_slice_every_other, list(result_every_other))
+
+        expected_slice_most = col_rep[1:]
+        result_most = c[1:4:1]
+        self.assertEqual(expected_slice_most, list(result_most))
+
+    def base_test_equality_operators(self):
+        col_rep = [
+            {"helsinki": [-1.0, 21.0], "moscow": [-4.0, 24.0]},
+            {"boston": [-4.0]},
+            {"nowhere": [], "algiers": [11.0, 25, 2], "kinshasa": [22.0, 26.0]},
+            {"london": [], "new york": [500]},
+        ]
+        c = ta.column(
+            col_rep,
+            device=self.device,
+        )
+        c2 = ta.column(
+            col_rep,
+            device=self.device,
+        )
+        self.assertTrue(all(c == c2))
+        self.assertFalse(any(c != c2))
+
 
 if __name__ == "__main__":
     unittest.main()

torcharrow/test/test_map_column_cpu.py

@@ -22,6 +22,15 @@ def test_infer(self):
     def test_keys_values_get(self):
         self.base_test_keys_values_get()
 
+    def test_get_operator(self):
+        self.base_test_get_operator()
+
+    def test_slice_operation(self):
+        self.base_test_slice_operation()
+
+    def test_equality_operators(self):
+        self.base_test_equality_operators()
+
 
 if __name__ == "__main__":
     unittest.main()