diff --git a/test_tjnetwork.py b/test_tjnetwork.py
index 7623f59..28c4abd 100644
--- a/test_tjnetwork.py
+++ b/test_tjnetwork.py
@@ -104,6 +104,12 @@ class TestApi:
         assert change_set.operations[0]['properties'] == ['demand']
         assert get_junction(p, 'j0')['demand'] == 100.0
 
+        assert get_junction(p, 'j0')['coord']['x'] == 0.0
+        assert get_junction(p, 'j0')['coord']['y'] == 10.0
+        change_set = set_junction(p, 'j0', {'coord': {'x': 100.0, 'y': 200.0}})
+        assert get_junction(p, 'j0')['coord']['x'] == 100.0
+        assert get_junction(p, 'j0')['coord']['y'] == 200.0
+
         # TODO: pattern
 
         change_set = add_junction(p, "j1", 0.0, 10.0, 20.0)