address comments - second round

Author: vtavana

tests/test_arraycreation.py

@@ -521,6 +521,16 @@ def test_vander_seq(sequence):
     assert_allclose(vander_func(numpy, sequence), vander_func(dpnp, sequence))
 
 
+@pytest.mark.parametrize(
+    "sequence",
+    [[1, 2, 3, 4], (1, 2, 3, 4)],
+    ids=["[1, 2, 3, 4]", "(1, 2, 3, 4)"],
+)
+def test_vander_seq(sequence):
+    vander_func = lambda xp, x: xp.vander(x)
+    assert_allclose(vander_func(numpy, sequence), vander_func(dpnp, sequence))
+
+
 @pytest.mark.parametrize(
     "shape",
     [(), 0, (0,), (2, 0, 3), (3, 2)],