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sample_test.go
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sample_test.go
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package pulseaudio
import (
"fmt"
"testing"
"time"
)
// clientForTest creates a new client and ensures that there is an active output.
func clientForTest() *Client {
c, err := NewClient()
if err != nil {
panic(err)
}
outs, active, err := c.Outputs()
if err != nil {
panic(err)
}
if active < 0 {
for _, out := range outs {
if !out.Available {
continue
}
err = out.Activate()
if err != nil {
panic(err)
}
break
}
}
err = c.SetVolume(0.5)
if err != nil {
panic(err)
}
return c
}
func Example() {
client, err := NewClient()
if err != nil {
panic(err)
}
defer client.Close()
// Use `client` to interact with PulseAudio
}
func TestExampleClient_SetVolume(t *testing.T) {
c := clientForTest()
defer c.Close()
err := c.SetVolume(1.5)
if err != nil {
panic(err)
}
vol, err := c.Volume()
if err != nil {
t.Errorf("%v", err)
}
if vol < 1.4999 {
t.Errorf("Wrong volume value : %v", vol)
}
}
func TestExampleClient_Updates(t *testing.T) {
c := clientForTest()
defer c.Close()
updates, err := c.Updates()
if err != nil {
panic(err)
}
select {
case _ = <-updates:
t.Errorf("Got update from PulseAudio")
case _ = <-time.After(time.Millisecond * 10):
fmt.Println("No update in 10 ms")
}
err = c.SetVolume(0.1)
if err != nil {
panic(err)
}
fmt.Println("Volume set to 0.1")
select {
case _ = <-updates:
fmt.Println("Got update from PulseAudio")
case _ = <-time.After(time.Millisecond * 10):
t.Errorf("No update in 10 ms")
}
// Output:
// No update in 10 ms
// Volume set to 0.1
// Got update from PulseAudio
}
func TestExampleClient_SetMute(t *testing.T) {
c := clientForTest()
defer c.Close()
err := c.SetMute(true)
if err != nil {
t.Errorf("Can't mute : %v", err)
}
b, err := c.Mute()
if err != nil || !b {
t.Errorf("Can't mute : %v", err)
}
err = c.SetMute(false)
if err != nil {
t.Errorf("Can't unmute : %v", err)
}
b, err = c.Mute()
if err != nil || b {
t.Errorf("Wrong value : %v", err)
}
}
func TestExampleClient_ToggleMute(t *testing.T) {
c := clientForTest()
defer c.Close()
b1, err := c.ToggleMute()
if err != nil {
t.Errorf("Can't toggle mute : %v", err)
}
b2, err := c.ToggleMute()
if err != nil {
t.Errorf("Can't toggle mute : %v", err)
}
if b1 == b2 {
t.Errorf("Wrong value : %v", err)
}
}