Implement the missing test cases at [https://github.com/apache/mahout/blob/main/testing/qdp/test_numpy.py#L139](https://www.google.com/search?q=https://github.com/apache/mahout/blob/main/testing/qdp/test_numpy.py%23L139)
Implement the missing test cases at https://github.com/apache/mahout/blob/main/testing/qdp/test_numpy.py#L139