testlib: Fix qml objects not deleted between data tests

Call wait(0) after the cleanup() function and not only at
the end of the test run (wait(0) is used to call processEvents()).
Otherwise, eventual destroy() calls in test function are not executed
between data tests.

Task-number: QTBUG-30523
Task-number: QTBUG-42185
Change-Id: I1d588ee28c61cda835e25307bc1c565d68b741fe
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/auto/qmltest/selftests/tst_destroy.qml b/tests/auto/qmltest/selftests/tst_destroy.qml
index 962f4a70ef..3b1b80520b 100644
--- a/tests/auto/qmltest/selftests/tst_destroy.qml
+++ b/tests/auto/qmltest/selftests/tst_destroy.qml
@@ -51,4 +51,22 @@ TestCase {
         // The object created in test above should be deleted
         compare(testCase.children.length, 0)
     }
+
+    function test_c_QTBUG_42185_data() {
+   // Adding dummy data objects for the purpose of calling multiple times the test function
+   // and checking that the created object (tmp) is destroyed as expected between each data run.
+        return [{tag: "test 0"}, {tag: "test 1"}, {tag: "test 2"},];
+    }
+
+    function test_c_QTBUG_42185() {
+        compare(testCase.children.length, 0)
+        var tmp = Qt.createQmlObject('import QtQuick 2.1; Rectangle {width: 20; height: 20;}', testCase, '')
+        compare(testCase.children.length, 1)
+        tmp.destroy()
+    }
+
+    function test_d_QTBUG_42185() {
+        // The object created in test above should be deleted
+        compare(testCase.children.length, 0)
+    }
 }