diff --git a/tests/test_utils.py b/tests/test_utils.py
index 9604076..6a4f58d 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,6 +1,7 @@
 
 
 from utils.iou import get_iou_matrix
+from utils.camera import pixel_to_camera
 
 
 def test_iou():
@@ -9,3 +10,12 @@ def test_iou():
     iou_matrix = get_iou_matrix(boxes_pred, boxes_gt)
     assert iou_matrix.shape == (len(boxes_pred), len(boxes_gt))
 
+
+def test_pixel_to_camera():
+    kk = [[718.3351, 0., 600.3891], [0., 718.3351, 181.5122], [0., 0., 1.]]
+    zz = 10
+    uv_vector = [1000., 400.]
+    xx_norm = pixel_to_camera(uv_vector, kk, 1)[0]
+    xx_1 = xx_norm * zz
+    xx_2 = pixel_to_camera(uv_vector, kk, zz)[0]
+    assert xx_1 == xx_2