Add tests for volume and mute

remote/volume.go

@@ -67,7 +67,7 @@ func (c *Control) GetVolumeMute() (bool, error) {
 		return false, err
 	}
 
-	resp := [4]byte{}
+	resp := [5]byte{}
 	_, err = c.conn.Read(resp[:])
 	if err != nil {
 		return false, err

remote/volume_test.go

@@ -0,0 +1,104 @@
+package remote
+
+import (
+	"testing"
+)
+
+func TestSetVolume(t *testing.T) {
+	control, mock := newControlMock()
+
+	err := control.SetVolume(101)
+	if err == nil {
+		t.Fail()
+	}
+
+	err = control.SetVolume(0)
+	if err != nil || mock.writeBuf.String() != "-v.0\r" {
+		t.Fail()
+	}
+
+	mock.Close()
+
+	err = control.SetVolume(100)
+	if err != nil || mock.writeBuf.String() != "-v.100\r" {
+		t.Fail()
+	}
+}
+
+func TestVolumeUp(t *testing.T) {
+	control, mock := newControlMock()
+
+	err := control.VolumeUp()
+	if err != nil || mock.writeBuf.String() != "-v.u\r" {
+		t.Fail()
+	}
+}
+
+func TestVolumeDown(t *testing.T) {
+	control, mock := newControlMock()
+
+	err := control.VolumeDown()
+	if err != nil || mock.writeBuf.String() != "-v.d\r" {
+		t.Fail()
+	}
+}
+
+func TestGetVolume(t *testing.T) {
+	control, mock := newControlMock()
+
+	control.SetVolume(0)
+	mock.FlushToReader()
+
+	volume, err := control.GetVolume()
+	if err != nil || volume != 0 {
+		t.Fail()
+	}
+
+	mock.Close()
+
+	control.SetVolume(100)
+	mock.FlushToReader()
+
+	volume, err = control.GetVolume()
+	if err != nil || volume != 100 {
+		t.Fail()
+	}
+}
+
+func TestSetVolumeMute(t *testing.T) {
+	control, mock := newControlMock()
+
+	err := control.SetVolumeMute(false)
+	if err != nil || mock.writeBuf.String() != "-m.0\r" {
+		t.Fail()
+	}
+
+	mock.Close()
+
+	err = control.SetVolumeMute(true)
+	if err != nil || mock.writeBuf.String() != "-m.1\r" {
+		t.Fail()
+	}
+}
+
+func TestGetVolumeMute(t *testing.T) {
+	control, mock := newControlMock()
+
+	control.SetVolumeMute(false)
+	mock.FlushToReader()
+
+	muted, err := control.GetVolumeMute()
+	if err != nil || muted {
+		t.Fail()
+	}
+
+	mock.Close()
+
+	control.SetVolumeMute(true)
+	mock.FlushToReader()
+
+	muted, err = control.GetVolumeMute()
+	if err != nil || !muted {
+		t.Fail()
+	}
+}