Handover recorder between session

This patch enable a proper handover of QMediaRecorder between session.
When the recorder is set to one session it will automatically disconnect
from the owning session.

Pick-to: 6.2
Change-Id: I7bc210134dee98126fea9da8d68c55cfa72a57f8
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/auto/integration/qmediacapturesession/tst_qmediacapturesession.cpp b/tests/auto/integration/qmediacapturesession/tst_qmediacapturesession.cpp
index 71a006ef5..61c0be23f 100644
--- a/tests/auto/integration/qmediacapturesession/tst_qmediacapturesession.cpp
+++ b/tests/auto/integration/qmediacapturesession/tst_qmediacapturesession.cpp
@@ -80,6 +80,7 @@ private slots:
     void can_change_VideoOutput_when_recording();
 
     void can_add_and_remove_recorders();
+    void can_move_Recorder_between_sessions();
     void cannot_record_without_Camera_and_AudioInput();
     void can_record_AudioInput_with_null_AudioDevice();
     void can_record_Camera_with_null_CameraDevice();
@@ -578,6 +579,38 @@ void tst_QMediaCaptureSession::can_add_and_remove_recorders()
     QVERIFY(!QTest::currentTestFailed());
 }
 
+void tst_QMediaCaptureSession::can_move_Recorder_between_sessions()
+{
+    QMediaCaptureSession session0;
+    QMediaCaptureSession session1;
+    QSignalSpy recorderChanged0(&session0, SIGNAL(recorderChanged()));
+    QSignalSpy recorderChanged1(&session1, SIGNAL(recorderChanged()));
+    {
+        QMediaRecorder recorder;
+        {
+            QMediaCaptureSession session2;
+            QSignalSpy recorderChanged2(&session2, SIGNAL(recorderChanged()));
+            session2.setRecorder(&recorder);
+            QTRY_COMPARE(recorderChanged2.count(), 1);
+        }
+        QVERIFY(recorder.captureSession() == nullptr);
+
+        session0.setRecorder(&recorder);
+        QTRY_COMPARE(recorderChanged0.count(), 1);
+        QVERIFY(session0.recorder() == &recorder);
+        QVERIFY(recorder.captureSession() == &session0);
+
+        session1.setRecorder(&recorder);
+        QTRY_COMPARE(recorderChanged0.count(), 2);
+        QVERIFY(session0.recorder() == nullptr);
+        QTRY_COMPARE(recorderChanged1.count(), 1);
+        QVERIFY(session1.recorder() == &recorder);
+        QVERIFY(recorder.captureSession() == &session1);
+    }
+    QTRY_COMPARE(recorderChanged1.count(), 2);
+    QVERIFY(session1.recorder() == nullptr);
+}
+
 void tst_QMediaCaptureSession::cannot_record_without_Camera_and_AudioInput()
 {
     QMediaCaptureSession session;