Added invalid value tests for QML autotests

Plus fixed a QML documentation bug, and added a missing
inheritance to docs.

Task-number: QTRD-3383
Change-Id: I1f7c56c49b829fee2cfd0731bbcc7e248a06a0c0
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/auto/qmltest/axis3d/tst_logvalue.qml b/tests/auto/qmltest/axis3d/tst_logvalue.qml
index fad93611..89228ad1 100644
--- a/tests/auto/qmltest/axis3d/tst_logvalue.qml
+++ b/tests/auto/qmltest/axis3d/tst_logvalue.qml
@@ -40,6 +40,10 @@ Item {
         id: change
     }
 
+    LogValueAxis3DFormatter {
+        id: invalid
+    }
+
     TestCase {
         name: "LogValueAxis3DFormatter Initial"
 
@@ -73,4 +77,15 @@ Item {
             compare(change.showEdgeLabels, false)
         }
     }
+
+    TestCase {
+        name: "LogValueAxis3DFormatter Invalid"
+
+        function test_invalid() {
+            invalid.base = 1
+            compare(invalid.base, 10)
+            invalid.base = -1
+            compare(invalid.base, 10)
+        }
+    }
 }