diff --git a/models/abstract/ChassisUtils_test.go b/models/abstract/ChassisUtils_test.go
index ecc5752..d6043f4 100644
--- a/models/abstract/ChassisUtils_test.go
+++ b/models/abstract/ChassisUtils_test.go
@@ -23,17 +23,16 @@
 )
 
 func TestChassisUtils_GenerateChassis(t *testing.T) {
-	chassis := abstract.GenerateChassis("MY_CLLI")
+	chassis := abstract.GenerateChassis("MY_CLLI", 1, 1)
 	slot := chassis.Slots[6]
 	port := slot.Ports[0]
 	ont := port.Onts[3]
 	svlan := ont.Svlan
 	cvlan := ont.Cvlan
 	if svlan != 98 { // see map doc
-		t.Fail()
+		t.Errorf("SVlan should be 98 and is %d\n", svlan)
 	}
 	if cvlan != 434 { // see map doc
-		t.Fail()
+		t.Errorf("CVlan should be 434 and is %d\n", cvlan)
 	}
-
 }