Client: Add removePrimaryScreen test

Test that removing the primary screen will not crash the application.

Task-number: QTBUG-62044
Change-Id: I8ba870e1d608629318ef897f88a6cc0d6e6aa85e
Reviewed-by: Pier Luigi Fiorini <pierluigi.fiorini@liri.io>

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/auto/client/client/tst_client.cpp b/tests/auto/client/client/tst_client.cpp
index e02aa9f8f..3cf19546f 100644
--- a/tests/auto/client/client/tst_client.cpp
+++ b/tests/auto/client/client/tst_client.cpp
@@ -140,6 +140,7 @@ private slots:
     void primaryScreen();
     void screens();
     void windowScreens();
+    void removePrimaryScreen();
     void createDestroyWindow();
     void events();
     void backingStore();
@@ -211,6 +212,38 @@ void tst_WaylandClient::windowScreens()
     QTRY_VERIFY(!compositor->surface());
 }
 
+void tst_WaylandClient::removePrimaryScreen()
+{
+    QSharedPointer<MockOutput> firstOutput;
+    QTRY_VERIFY(firstOutput = compositor->output());
+
+    TestWindow window;
+    window.show();
+
+    QSharedPointer<MockSurface> surface;
+    QTRY_VERIFY(surface = compositor->surface());
+    QTRY_COMPARE(QGuiApplication::screens().size(), 1);
+    QScreen *primaryScreen = QGuiApplication::screens().first();
+    QCOMPARE(window.screen(), primaryScreen);
+
+    compositor->sendAddOutput();
+
+    QTRY_COMPARE(QGuiApplication::screens().size(), 2);
+    QScreen *secondaryScreen = QGuiApplication::screens().at(1);
+    QVERIFY(secondaryScreen);
+
+    compositor->sendRemoveOutput(firstOutput);
+    QTRY_COMPARE(QGuiApplication::screens().size(), 1);
+
+    compositor->sendMousePress(surface, QPoint(10, 10));
+    QTRY_COMPARE(window.mousePressEventCount, 1);
+    compositor->sendMouseRelease(surface);
+    QTRY_COMPARE(window.mouseReleaseEventCount, 1);
+
+    window.destroy();
+    QTRY_VERIFY(!compositor->surface());
+}
+
 void tst_WaylandClient::createDestroyWindow()
 {
     TestWindow window;