public void VolumeFieldIsUpdated()
{
Context c = new Context();
c.ConnectAndWait();
helper.SpawnAplaySinkInput();
SinkInput aplay = null;
using (Operation opn = c.EnumerateSinkInputs((SinkInput input, int eol) => {
if (eol == 0)
{
if (input.Properties[Properties.ApplicationProcessBinary] == "aplay")
{
aplay = input;
}
}
})) {
opn.Wait();
}
Volume vol = aplay.Volume;
vol.Modify(0.1);
Assert.AreNotEqual(vol, aplay.Volume);
using (Operation opn = aplay.SetVolume(vol, (_) => {; })) {
opn.Wait();
}
Helper.DrainEventLoop();
// Wait for volume change events to percolate
Thread.Sleep(200);
Helper.DrainEventLoop();
Thread.Sleep(10);
Helper.DrainEventLoop();
try {
Assert.AreEqual(vol, aplay.Volume);
} finally {
//Reset the volume to 100%
vol.Reset();
using (Operation opn = aplay.SetVolume(vol, (_) => {; })) {
opn.Wait();
}
}
}
public void VolumeChangedEventFires()
{
Context c = new Context();
c.ConnectAndWait();
helper.SpawnAplaySinkInput();
SinkInput aplay = null;
using (Operation opn = c.EnumerateSinkInputs((SinkInput input, int eol) => {
if (eol == 0)
{
if (input.Properties[Properties.ApplicationProcessBinary] == "aplay")
{
aplay = input;
}
}
})) {
opn.Wait();
}
Assert.IsNotNull(aplay, "Testing error: aplay SinkInput not found");
var volumeChangedEventTriggered = new ManualResetEvent(false);
aplay.VolumeChanged += delegate(object sender, SinkInput.VolumeChangedEventArgs e) {
volumeChangedEventTriggered.Set();
};
// Ensure the volume changed callback is hooked up.
Helper.DrainEventLoop();
Volume vol = aplay.Volume;
vol.Modify(0.1);
using (Operation o = aplay.SetVolume(vol, (_) => {; })) {
o.Wait();
}
Helper.RunUntilEventSignal(() => {; }, volumeChangedEventTriggered, "Timeout waiting for VolumeChanged signal");
}