diff --git a/unittests/test_apiutils.py b/unittests/test_apiutils.py
index 717595d049a5a7c27b644dc6079d02efa1cefb71..9cf9e1b7ac0043f3c256f1210272ff15b9df458b 100644
--- a/unittests/test_apiutils.py
+++ b/unittests/test_apiutils.py
@@ -144,3 +144,38 @@ def test_compare_entities():
 
     assert "tests_234234" in diff_r1["properties"]
     assert "tests_TT" in diff_r2["properties"]
+
+    
+def test_compare_entities_units():
+    r1 = db.Record()
+    r2 = db.Record()
+    r1.add_parent("bla")
+    r2.add_parent("bla")
+    r1.add_parent("lopp")
+    r1.add_property("test", value=2, unit="cm")
+    r2.add_property("test", value=2, unit="m")
+    r1.add_property("tests", value=3, unit="cm")
+    r2.add_property("tests", value=45, unit="cm")
+    r1.add_property("tester", value=3)
+    r2.add_property("tester", )
+    r1.add_property("tests_234234", value=45, unit="cm")
+    r2.add_property("tests_TT", value=45, unit="cm")
+
+    diff_r1, diff_r2 = compare_entities(r1, r2)
+
+    assert len(diff_r1["parents"]) == 1
+    assert len(diff_r2["parents"]) == 0
+    assert len(diff_r1["properties"]) == 4
+    assert len(diff_r2["properties"]) == 4
+
+    assert "tests" in diff_r1["properties"]
+    assert "tests" in diff_r2["properties"]
+
+    assert "tester" in diff_r1["properties"]
+    assert "tester" in diff_r2["properties"]
+
+    assert "tests_234234" in diff_r1["properties"]
+    assert "tests_TT" in diff_r2["properties"]
+
+    assert diff_r1["properties"]["test"]["unit"] == "cm"
+    assert diff_r2["properties"]["test"]["unit"] == "m"