1 files changed, 15 insertions, 0 deletions
diff --git a/tests/auto/qmltest/surface3d/tst_heightproxy.qml b/tests/auto/qmltest/surface3d/tst_heightproxy.qml
index dc6938f8..29772451 100644
--- a/tests/auto/qmltest/surface3d/tst_heightproxy.qml
+++ b/tests/auto/qmltest/surface3d/tst_heightproxy.qml
@@ -42,6 +42,10 @@ Item {
         id: change
     }
 
+    HeightMapSurfaceDataProxy {
+        id: invalid
+    }
+
     TestCase {
         name: "HeightMapSurfaceDataProxy Initial"
 
@@ -98,4 +102,15 @@ Item {
             compare(change.rowCount, 24)
         }
     }
+
+    TestCase {
+        name: "HeightMapSurfaceDataProxy Invalid"
+
+        function test_invalid() {
+            invalid.maxXValue = -10
+            compare(invalid.minXValue, -11)
+            invalid.minZValue = 20
+            compare(invalid.maxZValue, 21)
+        }
+    }
 }