tst_qqmlqt: reliably call QDesktopServices::unsetUrlHandler()

Use QScopeGuard instead of manual calls, so even a failed test will
properly clean up after itself.

Pick-to: 6.3
Change-Id: I321f3560557e58b16cd177c623cb78b5b25111a7
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 8 insertions, 7 deletions

diff --git a/tests/auto/qml/qqmlqt/tst_qqmlqt.cpp b/tests/auto/qml/qqmlqt/tst_qqmlqt.cpp
index 8e4849e2d6..e97ab543d1 100644
--- a/tests/auto/qml/qqmlqt/tst_qqmlqt.cpp
+++ b/tests/auto/qml/qqmlqt/tst_qqmlqt.cpp
@@ -637,7 +637,10 @@ void tst_qqmlqt::openUrlExternally()
     const QUrl htmlTestFile = testFileUrl("test.html");
     QDesktopServices::setUrlHandler("test", &handler, "noteCall");
     QDesktopServices::setUrlHandler(htmlTestFile.scheme(), &handler, "noteCall");
-
+    const auto unset = qScopeGuard([&] {
+        QDesktopServices::unsetUrlHandler(htmlTestFile.scheme());
+        QDesktopServices::unsetUrlHandler("test");
+    });
     QQmlComponent component(&engine, testFileUrl("openUrlExternally.qml"));
     QScopedPointer<QObject> object(component.create());
     QVERIFY(object != nullptr);
@@ -648,9 +651,6 @@ void tst_qqmlqt::openUrlExternally()
 
     QCOMPARE(handler.called,2);
     QCOMPARE(handler.last, htmlTestFile);
-
-    QDesktopServices::unsetUrlHandler("test");
-    QDesktopServices::unsetUrlHandler(htmlTestFile.scheme());
 }
 
 void tst_qqmlqt::openUrlExternally_pragmaLibrary()
@@ -660,6 +660,10 @@ void tst_qqmlqt::openUrlExternally_pragmaLibrary()
     const QUrl htmlTestFile = testFileUrl("test.html");
     QDesktopServices::setUrlHandler("test", &handler, "noteCall");
     QDesktopServices::setUrlHandler(htmlTestFile.scheme(), &handler, "noteCall");
+    const auto unset = qScopeGuard([&] {
+        QDesktopServices::unsetUrlHandler(htmlTestFile.scheme());
+        QDesktopServices::unsetUrlHandler("test");
+    });
 
     QQmlComponent component(&engine, testFileUrl("openUrlExternally_lib.qml"));
     QScopedPointer<QObject> object(component.create());
@@ -671,9 +675,6 @@ void tst_qqmlqt::openUrlExternally_pragmaLibrary()
 
     QCOMPARE(handler.called,2);
     QCOMPARE(handler.last, htmlTestFile);
-
-    QDesktopServices::unsetUrlHandler("test");
-    QDesktopServices::unsetUrlHandler(htmlTestFile.scheme());
 }
 
 void tst_qqmlqt::md5()