expanding unit test for QAudioDecoder

Looking for feedback concerning:
implementation of the change
desired functionality of QAudioDecoder

Changed the behaviour of QAudioDecoder for
more sane error output

Change-Id: I82193a94b6fe1ef4202a4ac7bd95c607e0bee9c6
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

2 files changed, 95 insertions, 0 deletions

diff --git a/tests/auto/unit/qaudiodecoder/tst_qaudiodecoder.cpp b/tests/auto/unit/qaudiodecoder/tst_qaudiodecoder.cpp
index 43c51e35c..e124710c4 100644
--- a/tests/auto/unit/qaudiodecoder/tst_qaudiodecoder.cpp
+++ b/tests/auto/unit/qaudiodecoder/tst_qaudiodecoder.cpp
@@ -62,6 +62,8 @@ private Q_SLOTS:
     void format();
     void source();
     void readAll();
+    void nullControl();
+    void nullService();
 
 private:
     MockAudioDecoderService  *mockAudioDecoderService;
@@ -338,6 +340,87 @@ void tst_QAudioDecoder::readAll()
     }
 }
 
+void tst_QAudioDecoder::nullControl()
+{
+    mockAudioDecoderService->setControlNull();
+    QAudioDecoder d;
+
+    QVERIFY(d.error() == QAudioDecoder::ServiceMissingError);
+    QVERIFY(!d.errorString().isEmpty());
+
+    QVERIFY(d.hasSupport("MIME") == QtMultimedia::MaybeSupported);
+
+    QVERIFY(d.state() == QAudioDecoder::StoppedState);
+
+    QVERIFY(d.sourceFilename().isEmpty());
+    d.setSourceFilename("test");
+    QVERIFY(d.sourceFilename().isEmpty());
+
+    QFile f;
+    QVERIFY(d.sourceDevice() == 0);
+    d.setSourceDevice(&f);
+    QVERIFY(d.sourceDevice() == 0);
+
+    QAudioFormat format;
+    format.setChannels(2);
+    QVERIFY(!d.audioFormat().isValid());
+    d.setAudioFormat(format);
+    QVERIFY(!d.audioFormat().isValid());
+
+    QVERIFY(!d.read().isValid());
+    QVERIFY(!d.bufferAvailable());
+
+    QVERIFY(d.position() == -1);
+    QVERIFY(d.duration() == -1);
+
+    d.start();
+    QVERIFY(d.error() == QAudioDecoder::ServiceMissingError);
+    QVERIFY(!d.errorString().isEmpty());
+    QVERIFY(d.state() == QAudioDecoder::StoppedState);
+    d.stop();
+}
+
+
+void tst_QAudioDecoder::nullService()
+{
+    mockProvider->service = 0;
+    QAudioDecoder d;
+
+    QVERIFY(d.error() == QAudioDecoder::ServiceMissingError);
+    QVERIFY(!d.errorString().isEmpty());
+
+    QVERIFY(d.hasSupport("MIME") == QtMultimedia::MaybeSupported);
+
+    QVERIFY(d.state() == QAudioDecoder::StoppedState);
+
+    QVERIFY(d.sourceFilename().isEmpty());
+    d.setSourceFilename("test");
+    QVERIFY(d.sourceFilename().isEmpty());
+
+    QFile f;
+    QVERIFY(d.sourceDevice() == 0);
+    d.setSourceDevice(&f);
+    QVERIFY(d.sourceDevice() == 0);
+
+    QAudioFormat format;
+    format.setChannels(2);
+    QVERIFY(!d.audioFormat().isValid());
+    d.setAudioFormat(format);
+    QVERIFY(!d.audioFormat().isValid());
+
+    QVERIFY(!d.read().isValid());
+    QVERIFY(!d.bufferAvailable());
+
+    QVERIFY(d.position() == -1);
+    QVERIFY(d.duration() == -1);
+
+    d.start();
+    QVERIFY(d.error() == QAudioDecoder::ServiceMissingError);
+    QVERIFY(!d.errorString().isEmpty());
+    QVERIFY(d.state() == QAudioDecoder::StoppedState);
+    d.stop();
+}
+
 QTEST_MAIN(tst_QAudioDecoder)
 
 #include "tst_qaudiodecoder.moc"
diff --git a/tests/auto/unit/qmultimedia_common/mockaudiodecoderservice.h b/tests/auto/unit/qmultimedia_common/mockaudiodecoderservice.h
index 35db819e7..d3228686b 100644
--- a/tests/auto/unit/qmultimedia_common/mockaudiodecoderservice.h
+++ b/tests/auto/unit/qmultimedia_common/mockaudiodecoderservice.h
@@ -55,6 +55,7 @@ public:
         : QMediaService(parent)
     {
         mockControl = new MockAudioDecoderControl(this);
+        validControl = mockControl;
     }
 
     ~MockAudioDecoderService()
@@ -74,7 +75,18 @@ public:
         Q_UNUSED(control);
     }
 
+    void setControlNull()
+    {
+        mockControl = 0;
+    }
+
+    void setControlValid()
+    {
+        mockControl = validControl;
+    }
+
     MockAudioDecoderControl *mockControl;
+    MockAudioDecoderControl *validControl;
 };