test case added.

Author: Rajat Jain

pandas/tests/arrays/integer/test_dtypes.py

@@ -269,6 +269,14 @@ def test_to_numpy_dtype(dtype, in_series):
     tm.assert_numpy_array_equal(result, expected)
 
 
+@pytest.mark.parametrize("dtype", ["int32", "int64"])
+def test_nd_array_cast_to_dtype(dtype):
+    b = pd.DataFrame([['0', '1'], ['2', '3']], dtype="Int64")
+    result = b.to_numpy(dtype=dtype)
+    expected = np.array([[0, 1], [2, 3]], dtype=dtype)
+    tm.assert_numpy_array_equal(result, expected)
+
+
 @pytest.mark.parametrize("dtype", ["int64", "bool"])
 def test_to_numpy_na_raises(dtype):
     a = pd.array([0, 1, None], dtype="Int64")