fix(settings): Play test sound when user enables test sound

Fixes #3735

src/audio/audio.cpp

@@ -88,6 +88,20 @@ private:
 /**
  * @class Audio
  *
+ * @enum Audio::Sound
+ * @brief Provides the different sounds for use in the getSound function.
+ * @see getSound
+ *
+ * @value NewMessage Returns the new message notification sound.
+ * @value Test Returns the test sound.
+ * @value IncomingCall Returns the incoming call sound.
+ *
+ * @fn QString Audio::getSound(Sound s)
+ * @brief Function to get the path of the requested sound.
+ *
+ * @param s Name of the sound to get the path of.
+ * @return The path of the requested sound.
+ *
  * @fn void Audio::frameAvailable(const int16_t *pcm, size_t sample_count, uint8_t channels, uint32_t sampling_rate);
  *
  * When there are input subscribers, we regularly emit captured audio frames with this signal

src/audio/audio.h

@@ -28,6 +28,8 @@
 #include <QMutex>
 #include <QTimer>
 
+#include <cassert>
+
 #if defined(__APPLE__) && defined(__MACH__)
  #include <OpenAL/al.h>
  #include <OpenAL/alc.h>
@@ -49,6 +51,22 @@ class Audio : public QObject
     class Private;
 
 public:
+
+    enum class Sound { NewMessage, Test, IncomingCall };
+
+    inline static QString getSound(Sound s) {
+        switch (s)
+        {
+        case Sound::Test:
+            return QStringLiteral(":/audio/notification.pcm");
+        case Sound::NewMessage:
+            return QStringLiteral(":/audio/notification.pcm");
+        case Sound::IncomingCall:
+            return QStringLiteral(":/audio/ToxIncomingCall.pcm");
+        }
+        assert(false);
+        return QString();
+    }
     static Audio& getInstance();
 
     qreal outputVolume() const;

src/widget/form/settings/avform.cpp

@@ -528,13 +528,17 @@ void AVForm::on_playbackSlider_valueChanged(int value)
         audio.setOutputVolume(percentage);
 
         if (mPlayTestSound)
-            audio.playMono16Sound(QStringLiteral(":/audio/notification.pcm"));
+            audio.playMono16Sound(Audio::getSound(Audio::Sound::Test));
     }
 }
 
 void AVForm::on_btnPlayTestSound_clicked(bool checked)
 {
     mPlayTestSound = checked;
+
+    Audio& audio = Audio::getInstance();
+    if (mPlayTestSound && audio.isOutputReady())
+        audio.playMono16Sound(Audio::getSound(Audio::Sound::Test));
 }
 
 void AVForm::on_microphoneSlider_valueChanged(int value)