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mediadevices_test.go
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mediadevices_test.go
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package mediadevices
import (
"io"
"testing"
"time"
"github.com/pion/mediadevices/pkg/driver"
_ "github.com/pion/mediadevices/pkg/driver/audiotest"
_ "github.com/pion/mediadevices/pkg/driver/videotest"
"github.com/pion/mediadevices/pkg/frame"
"github.com/pion/mediadevices/pkg/prop"
)
func TestGetUserMedia(t *testing.T) {
constraints := MediaStreamConstraints{
Video: func(c *MediaTrackConstraints) {
c.Width = prop.Int(640)
c.Height = prop.Int(480)
},
Audio: func(c *MediaTrackConstraints) {
},
}
constraintsWrong := MediaStreamConstraints{
Video: func(c *MediaTrackConstraints) {
c.Width = prop.IntExact(10000)
c.Height = prop.Int(480)
},
Audio: func(c *MediaTrackConstraints) {
},
}
// GetUserMedia with broken parameters
ms, err := GetUserMedia(constraintsWrong)
if err == nil {
t.Fatal("Expected error, but got nil")
}
// GetUserMedia with correct parameters
ms, err = GetUserMedia(constraints)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
tracks := ms.GetTracks()
if l := len(tracks); l != 2 {
t.Fatalf("Number of the tracks is expected to be 2, got %d", l)
}
for _, track := range tracks {
track.OnEnded(func(err error) {
if err != io.EOF {
t.Errorf("OnEnded called: %v", err)
}
})
}
time.Sleep(50 * time.Millisecond)
for _, track := range tracks {
track.Close()
}
// Stop and retry GetUserMedia
ms, err = GetUserMedia(constraints)
if err != nil {
t.Fatalf("Failed to GetUserMedia after the previsous tracks stopped: %v", err)
}
tracks = ms.GetTracks()
if l := len(tracks); l != 2 {
t.Fatalf("Number of the tracks is expected to be 2, got %d", l)
}
for _, track := range tracks {
track.OnEnded(func(err error) {
if err != io.EOF {
t.Errorf("OnEnded called: %v", err)
}
})
}
time.Sleep(50 * time.Millisecond)
for _, track := range tracks {
track.Close()
}
}
func TestSelectBestDriverConstraintsResultIsSetProperly(t *testing.T) {
filterFn := driver.FilterVideoRecorder()
drivers := driver.GetManager().Query(filterFn)
if len(drivers) == 0 {
t.Fatal("expect to get at least 1 driver")
}
driver := drivers[0]
err := driver.Open()
if err != nil {
t.Fatal("expect to open driver successfully")
}
defer driver.Close()
if len(driver.Properties()) == 0 {
t.Fatal("expect to get at least 1 property")
}
expectedProp := driver.Properties()[0]
// By reducing the value from the driver by a tiny amount, this property should be chosen.
// At the same time, we'll be able to find out if the return constraints will be properly set
// to the best constraints.
cases := map[string]struct {
width, height int
frameFormat frame.Format
frameRate float32
}{
"DifferentWidth": {
width: expectedProp.Width - 1,
height: expectedProp.Height,
frameFormat: expectedProp.FrameFormat,
frameRate: expectedProp.FrameRate,
},
"DifferentHeight": {
width: expectedProp.Width,
height: expectedProp.Height - 1,
frameFormat: expectedProp.FrameFormat,
frameRate: expectedProp.FrameRate,
},
"DifferentFrameFormat": {
width: expectedProp.Width,
height: expectedProp.Height,
frameFormat: frame.FormatI420,
frameRate: expectedProp.FrameRate,
},
}
for name, c := range cases {
c := c
t.Run(name, func(t *testing.T) {
var vc prop.VideoConstraints
if c.frameRate >= 0 {
vc = prop.VideoConstraints{
Width: prop.Int(c.width),
Height: prop.Int(c.height),
FrameFormat: prop.FrameFormat(c.frameFormat),
FrameRate: prop.Float(c.frameRate),
}
} else {
// do not specify the framerate
vc = prop.VideoConstraints{
Width: prop.Int(c.width),
Height: prop.Int(c.height),
FrameFormat: prop.FrameFormat(c.frameFormat),
}
}
wantConstraints := MediaTrackConstraints{
MediaConstraints: prop.MediaConstraints{
VideoConstraints: vc,
},
}
bestDriver, bestConstraints, err := selectBestDriver(filterFn, wantConstraints)
if err != nil {
t.Fatal(err)
}
if driver != bestDriver {
t.Fatal("best driver is not expected")
}
s := bestConstraints.selectedMedia
if s.Width != expectedProp.Width ||
s.Height != expectedProp.Height ||
s.FrameFormat != expectedProp.FrameFormat ||
s.FrameRate != expectedProp.FrameRate {
t.Fatalf("failed to return best constraints\nexpected:\n%v\n\ngot:\n%v", expectedProp, bestConstraints.selectedMedia)
}
})
}
}
func TestSelectBestDriverConstraintsNoFit(t *testing.T) {
filterFn := driver.FilterVideoRecorder()
drivers := driver.GetManager().Query(filterFn)
if len(drivers) == 0 {
t.Fatal("expect to get at least 1 driver")
}
driver := drivers[0]
err := driver.Open()
if err != nil {
t.Fatal("expect to open driver successfully")
}
defer driver.Close()
if len(driver.Properties()) == 0 {
t.Fatal("expect to get at least 1 property")
}
expectedProp := driver.Properties()[0]
cases := map[string]struct {
width, height int
frameFormat frame.Format
frameRate float32
}{
"DifferentWidth": {
width: expectedProp.Width - 1,
height: expectedProp.Height,
frameFormat: expectedProp.FrameFormat,
frameRate: expectedProp.FrameRate,
},
"DifferentHeight": {
width: expectedProp.Width,
height: expectedProp.Height - 1,
frameFormat: expectedProp.FrameFormat,
frameRate: expectedProp.FrameRate,
},
"DifferentFrameFormat": {
width: expectedProp.Width,
height: expectedProp.Height,
frameFormat: frame.FormatI420,
frameRate: expectedProp.FrameRate,
},
}
for name, c := range cases {
c := c
t.Run(name, func(t *testing.T) {
wantConstraints := MediaTrackConstraints{
MediaConstraints: prop.MediaConstraints{
VideoConstraints: prop.VideoConstraints{
Width: prop.IntExact(c.width),
Height: prop.IntExact(c.height),
FrameFormat: prop.FrameFormatExact(c.frameFormat),
FrameRate: prop.FloatExact(c.frameRate),
},
},
}
_, _, err := selectBestDriver(filterFn, wantConstraints)
if err == nil {
t.Fatal("expect to not find a driver that fits the constraints")
}
})
}
}