ToolTip: use QQmlInfo and don't crash with non-Items

Before:

    ToolTip must be attached to an Item QObject(0x239c3e0)
    The program has unexpectedly finished.

After:

    qrc:/main.qml:8:5: QML QtObject: ToolTip must be attached to an Item

Change-Id: I9a2bf317a13eb7408fc5851087457bbfbeca9f3f
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/auto/controls/data/tst_tooltip.qml b/tests/auto/controls/data/tst_tooltip.qml
index 43a9a0e9..9f295651 100644
--- a/tests/auto/controls/data/tst_tooltip.qml
+++ b/tests/auto/controls/data/tst_tooltip.qml
@@ -65,6 +65,10 @@ TestCase {
         SignalSpy { }
     }
 
+    QtObject {
+        id: object
+    }
+
     function test_properties_data() {
         return [
             {tag: "text", property: "text", defaultValue: "", setValue: "Hello", signalName: "textChanged"},
@@ -153,4 +157,9 @@ TestCase {
 
         control.destroy()
     }
+
+    function test_warning() {
+        ignoreWarning(Qt.resolvedUrl("tst_tooltip.qml") + ":68:5: QML QtObject: ToolTip must be attached to an Item")
+        object.ToolTip.text = ""
+    }
 }