diff --git a/tests/permute_test.py b/tests/permute_test.py
index 4ad50b6..99bb2fe 100644
--- a/tests/permute_test.py
+++ b/tests/permute_test.py
@@ -6,6 +6,10 @@
 
 
 @pytest.mark.parametrize("x", [
+    ((), (), torch.tensor(6), (), torch.tensor(6)),
+    ((False,), ((1, 1),), torch.tensor([1, 2]), (0,), torch.tensor([1, 2])),
+    ((False, True), ((1, 1), (0, 0)), torch.zeros([2, 0]), (1, 0), torch.zeros([0, 2])),
+    ((False, True), ((1, 1), (0, 1)), torch.tensor([[0], [4]]), (1, 0), torch.tensor([[0, -4]])),
     ((False, False), ((1, 1), (1, 1)), torch.tensor([[1, 0], [0, 4]]), (0, 1), torch.tensor([[1, 0], [0, 4]])),
     ((True, False), ((1, 1), (1, 1)), torch.tensor([[1, 0], [0, 4]]), (1, 0), torch.tensor([[1, 0], [0, -4]])),
     ((False, True, True), ((1, 1), (1, 1), (1, 1)), torch.tensor([[[1, 0], [0, 2]], [[0, 3], [4, 0]]]), (0, 2, 1), torch.tensor([[[1, 0], [0, -2]], [[0, 4], [3, 0]]])),
diff --git a/tests/reverse_test.py b/tests/reverse_test.py
index d21e653..7e1b3c6 100644
--- a/tests/reverse_test.py
+++ b/tests/reverse_test.py
@@ -6,6 +6,10 @@
 
 
 @pytest.mark.parametrize("x", [
+    ((), (), torch.tensor(6), (), torch.tensor(6)),
+    ((False, False), ((1, 1), (0, 0)), torch.zeros([2, 0]), (0,), torch.zeros([2, 0])),
+    ((False, False), ((1, 1), (0, 1)), torch.tensor([[0], [4]]), (0,), torch.tensor([[0], [4]])),
+    ((False, False), ((1, 1), (1, 1)), torch.tensor([[1, 0], [0, 4]]), (), torch.tensor([[1, 0], [0, 4]])),
     ((False, False), ((1, 1), (1, 1)), torch.tensor([[1, 0], [0, 4]]), (0,), torch.tensor([[1, 0], [0, 4]])),
     ((True, False), ((1, 1), (1, 1)), torch.tensor([[1, 0], [0, 4]]), (0,), torch.tensor([[1, 0], [0, -4]])),
     ((False, False), ((1, 1), (1, 1)), torch.tensor([[1, 0], [0, 4]]), (1,), torch.tensor([[1, 0], [0, 4]])),