address comments

Author: npolina4

tests/skipped_tests.tbl

@@ -117,8 +117,6 @@ tests/third_party/cupy/core_tests/test_ndarray_conversion.py::TestNdarrayToBytes
 tests/third_party/cupy/core_tests/test_ndarray_conversion.py::TestNdarrayToBytes_param_3_{order='C', shape=(2, 3)}::test_item
 tests/third_party/cupy/core_tests/test_ndarray_conversion.py::TestNdarrayToBytes_param_4_{order='F', shape=(2, 3)}::test_item
 
-tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayDiagonal::test_diagonal1
-tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayDiagonal::test_diagonal2
 tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayFlatten::test_flatten_order
 tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayFlatten::test_flatten_order_copied
 tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayFlatten::test_flatten_order_transposed

tests/skipped_tests_gpu.tbl

@@ -241,8 +241,6 @@ tests/third_party/cupy/core_tests/test_ndarray_complex_ops.py::TestAngle::test_a
 tests/third_party/cupy/core_tests/test_ndarray_complex_ops.py::TestRealImag::test_imag_inplace
 tests/third_party/cupy/core_tests/test_ndarray_complex_ops.py::TestRealImag::test_real_inplace
 
-tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayDiagonal::test_diagonal1
-tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayDiagonal::test_diagonal2
 tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayFlatten::test_flatten_order
 tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayFlatten::test_flatten_order_copied
 tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py::TestArrayFlatten::test_flatten_order_transposed

tests/third_party/cupy/core_tests/test_ndarray_copy_and_view.py

@@ -384,6 +384,7 @@ def test_astype_boolean_view(self, xp):
         return a.astype(numpy.int8)
 
 
+@pytest.mark.usefixtures("allow_fall_back_on_numpy")
 class TestArrayDiagonal:
     @testing.for_all_dtypes()
     @testing.numpy_cupy_array_equal()