TST: Add a test for vectorized call

Author: Smit-create

quantecon/tests/test_ecdf.py

@@ -30,3 +30,10 @@ def test_ascending(self):
         F_1 = self.ecdf(x)
         F_2 = self.ecdf(1.1 * x)
         self.assertGreaterEqual(F_2, F_1)
+
+    def test_vectorized(self):
+        "ecdf: testing vectorized __call__ method"
+        t = np.linspace(-1, 1, 100)
+        self.assertEqual(t.shape, self.ecdf(t).shape)
+        t = np.linspace(-1, 1, 100).reshape(2, 2, 25)
+        self.assertEqual(t.shape, self.ecdf(t).shape)