Add __array__ method to mock numpy-like

Author: znicholls

pandas/tests/dtypes/test_inference.py

@@ -79,14 +79,16 @@ def __iter__(self):
         iter_values = iter(self._values)
 
         def it_outer():
-            for element in iter_values:
-                yield element
+            yield from iter_values
 
         return it_outer()
 
     def __len__(self):
         return len(self._values)
 
+    def __array__(self, t=None):
+        return self._values
+
     @property
     def ndim(self):
         return self._values.ndim
@@ -210,10 +212,13 @@ class DtypeList(list):
     assert not inference.is_array_like(123)
 
 
-@pytest.mark.parametrize("eg", (
-    np.array(2),
-    MockNumpyLikeArray(np.array(2)),
-))
+@pytest.mark.parametrize(
+    "eg",
+    (
+        np.array(2),
+        MockNumpyLikeArray(np.array(2)),
+    ),
+)
 def test_assert_almost_equal(eg):
     tm.assert_almost_equal(eg, eg)