86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
package video
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import (
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"encoding/base64"
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"fmt"
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"github.com/cyrilix/robocar-protobuf/go/events"
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mqtt "github.com/eclipse/paho.mqtt.golang"
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"github.com/golang/protobuf/proto"
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"io/ioutil"
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"sync"
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"testing"
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"time"
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)
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func TestNewCameraFake(t *testing.T) {
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oldPublish := publish
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defer func() {
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publish = oldPublish
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}()
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var muEventsPublished sync.Mutex
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eventsPublished := make([]*[]byte, 0, 10)
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publish = func(client mqtt.Client, topic string, payload *[]byte) {
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muEventsPublished.Lock()
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defer muEventsPublished.Unlock()
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eventsPublished = append(eventsPublished, payload)
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}
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videoDir := "testdata/video"
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fps := 250
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camera, err := NewCameraFake(nil, "topic/fake/video", videoDir, fps)
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if err != nil {
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t.Errorf("unable to load frame from directory %v: %v", videoDir, err)
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}
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// Video frame
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files, err := ioutil.ReadDir(videoDir)
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if err != nil {
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t.Errorf("unable to list files in directory %v: %v", videoDir, err)
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}
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if err := camera.Start(); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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defer camera.Stop()
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time.Sleep(5 * time.Millisecond)
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for idx, frame := range files {
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muEventsPublished.Lock()
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if len(eventsPublished) < idx+1 {
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t.Errorf("frame %v has not been published", idx)
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t.FailNow()
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}
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msgPublished := eventsPublished[idx]
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var frameMsg events.FrameMessage
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err := proto.Unmarshal(*msgPublished, &frameMsg)
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if err != nil {
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t.Errorf("unable to unmarshal msg frame: %v", err)
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}
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frameContent, err := ioutil.ReadFile(fmt.Sprintf("%s/%s", videoDir, frame.Name()))
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if err != nil {
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t.Errorf("unable to read frame file %v: %v", frame.Name(), err)
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}
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srcFrame := base64.StdEncoding.EncodeToString(frameContent)
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publishedFrame := base64.StdEncoding.EncodeToString(frameMsg.GetFrame())
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if srcFrame != publishedFrame {
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t.Errorf("frame signatures doesn't match: %v, wants %v", publishedFrame, srcFrame)
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}
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if frameMsg.GetId().GetName() != "camera" {
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t.Errorf("bad name frame: %v, wants %v", frameMsg.GetId().GetName(), "camera")
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}
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if len(frameMsg.GetId().GetId()) != 13 {
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t.Errorf("bad id length: %v, wants %v", len(frameMsg.GetId().GetId()), 13)
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}
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if frameMsg.GetId().GetCreatedAt() == nil {
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t.Errorf("missin CreatedAt field")
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}
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muEventsPublished.Unlock()
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time.Sleep(1 * time.Second / time.Duration(fps))
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}
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}
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