diff --git a/tests/test_utils_npy.py b/tests/test_utils_npy.py
index 338eea1b1..0ff6d4bc8 100644
--- a/tests/test_utils_npy.py
+++ b/tests/test_utils_npy.py
@@ -7,10 +7,10 @@ from slic.utils.npy import *
 
 @pytest.mark.parametrize("start, stop, step, expected", [
     (0, 5, 1, [0, 1, 2, 3, 4, 5]),                         
-    (5, 0, -1, [5, 4, 3, 2, 1, 0]),                        
+    (5, 0, -1, [0, 1, 2, 3, 4, 5]),                        
     (1, 2, 3/10, [1, 4/3, 5/3, 2]),                        
     (-2, 2, 3/2, [-2, -2/3, 2/3, 2]),                      
-    (5/2, 1/2, -2/5, [5/2, 21/10, 17/10, 13/10, 9/10, 1/2])
+    (5/2, 1/2, -2/5, [1/2, 9/10, 13/10, 17/10, 21/10, 5/2])
 ])
 def test_nice_arange(start, stop, step, expected):
     np.testing.assert_allclose(nice_arange(start, stop, step), expected)
@@ -24,6 +24,7 @@ def test_nice_arange(start, stop, step, expected):
     (2, 2, 3, np.array([2., 2., 2., 2.])),                           # constant start = stop
     (3, 0, 3, np.array([3., 2., 1., 0.])),                           # decreasing
     (0, 1, 0, np.array([0.])),                                      # edge case: 0 intervals → 1 point
+    (-2, 2, 3, np.array([-2, -2/3, 2/3, 2])),
 ])
 def test_nice_linspace(start, stop, num, expected):
     np.testing.assert_allclose(nice_linspace(start, stop, num), expected)