[refactor] Use protobuf messages
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										66
									
								
								part/part.go
									
									
									
									
									
								
							
							
						
						
									
										66
									
								
								part/part.go
									
									
									
									
									
								
							@@ -1,27 +1,24 @@
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package part
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import (
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	"encoding/json"
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	"github.com/cyrilix/robocar-base/mqttdevice"
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	"github.com/cyrilix/robocar-base/service"
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	"github.com/cyrilix/robocar-base/types"
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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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	log "github.com/sirupsen/logrus"
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	"sync"
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	"time"
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)
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func NewPart(client mqtt.Client, pub mqttdevice.Publisher, throttleTopic, driveModeTopic, rcThrottleTopic string,
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	minValue, maxValue float64, publishPilotFrequency int) *ThrottlePart {
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func NewPart(client mqtt.Client, throttleTopic, driveModeTopic, rcThrottleTopic string, minValue, maxValue float32, publishPilotFrequency int) *ThrottlePart {
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	return &ThrottlePart{
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		client:                client,
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		pub:                   pub,
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		throttleTopic:         throttleTopic,
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		driveModeTopic:        driveModeTopic,
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		rcThrottleTopic:       rcThrottleTopic,
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		minThrottle:           minValue,
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		maxThrottle:           maxValue,
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		driveMode:             types.DriveModeUser,
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		driveMode:             events.DriveMode_USER,
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		publishPilotFrequency: publishPilotFrequency,
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	}
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@@ -29,12 +26,11 @@ func NewPart(client mqtt.Client, pub mqttdevice.Publisher, throttleTopic, driveM
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type ThrottlePart struct {
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	client                   mqtt.Client
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	pub                      mqttdevice.Publisher
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	throttleTopic            string
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	minThrottle, maxThrottle float64
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	minThrottle, maxThrottle float32
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	muDriveMode sync.RWMutex
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	driveMode   types.DriveMode
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	driveMode   events.DriveMode
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	cancel                          chan interface{}
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	publishPilotFrequency           int
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@@ -43,7 +39,7 @@ type ThrottlePart struct {
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func (p *ThrottlePart) Start() error {
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	if err := registerCallbacks(p); err != nil {
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		log.Printf("unable to rgeister callbacks: %v", err)
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		log.Infof("unable to rgeister callbacks: %v", err)
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		return err
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	}
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@@ -63,14 +59,21 @@ func (p *ThrottlePart) publishPilotValue() {
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	p.muDriveMode.RLock()
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	defer p.muDriveMode.RUnlock()
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	if p.driveMode != types.DriveModePilot {
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	if p.driveMode != events.DriveMode_PILOT {
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		return
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	}
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	p.pub.Publish(p.throttleTopic, mqttdevice.NewMqttValue(types.Throttle{
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		Value:      p.minThrottle,
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		Confidence: 1.0,
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	}))
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	throttleMsg := events.ThrottleMessage{
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		Throttle:             p.minThrottle,
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		Confidence:           1.0,
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	}
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	payload, err := proto.Marshal(&throttleMsg)
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	if err != nil {
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		log.Errorf("unable to marshal %T protobuf content: %err", throttleMsg, err)
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		return
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	}
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	publish(p.client, p.throttleTopic, &payload)
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}
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func (p *ThrottlePart) Stop() {
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@@ -79,26 +82,25 @@ func (p *ThrottlePart) Stop() {
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}
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func (p *ThrottlePart) onDriveMode(_ mqtt.Client, message mqtt.Message) {
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	m := types.ParseString(string(message.Payload()))
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	p.muDriveMode.Lock()
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	defer p.muDriveMode.Unlock()
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	p.driveMode = m
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}
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func (p *ThrottlePart) onRCThrottle(_ mqtt.Client, message mqtt.Message) {
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	payload := message.Payload()
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	var throttle types.Throttle
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	err := json.Unmarshal(payload, &throttle)
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	var msg events.DriveModeMessage
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	err := proto.Unmarshal(message.Payload(), &msg)
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	if err != nil {
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		log.Errorf("unable to parse throttle json: %v", err)
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		log.Errorf("unable to unmarshal protobuf %T message: %v", msg, err)
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		return
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	}
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	p.muDriveMode.Lock()
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	defer p.muDriveMode.Unlock()
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	p.driveMode = msg.GetDriveMode()
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}
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func (p *ThrottlePart) onRCThrottle(_ mqtt.Client, message mqtt.Message) {
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	p.muDriveMode.RLock()
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	defer p.muDriveMode.RUnlock()
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	if p.driveMode == types.DriveModeUser {
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		p.pub.Publish(p.throttleTopic, mqttdevice.NewMqttValue(throttle))
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	if p.driveMode == events.DriveMode_USER {
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		// Republish same content
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		payload := message.Payload()
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		publish(p.client, p.throttleTopic, &payload)
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	}
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}
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@@ -114,3 +116,7 @@ var registerCallbacks = func (p *ThrottlePart) error {
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	}
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	return nil
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}
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var publish = func(client mqtt.Client, topic string, payload *[]byte) {
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	client.Publish(topic, 0, false, *payload)
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}
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@@ -1,70 +1,81 @@
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package part
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import (
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	"encoding/json"
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	"github.com/cyrilix/robocar-base/mqttdevice"
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	"github.com/cyrilix/robocar-base/testtools"
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	"github.com/cyrilix/robocar-base/types"
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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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	"sync"
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	"testing"
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	"time"
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)
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func TestDefaultThrottle(t *testing.T) {
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	oldRegister := registerCallbacks
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	defer func(){
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	oldPublish := publish
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	defer func() {
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		registerCallbacks = oldRegister
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		publish = oldPublish
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	}()
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	registerCallbacks = func(p *ThrottlePart) error {
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		return nil
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	}
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	var muEventsPublished sync.Mutex
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	eventsPublished := make(map[string][]byte)
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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[topic] = *payload
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	}
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	throttleTopic := "topic/throttle"
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	driveModeTopic := "topic/driveMode"
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	rcThrottleTopic := "topic/rcThrottle"
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	minValue := 0.56
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	minValue := float32(0.56)
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	pub := testtools.NewFakePublisher()
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	p := NewPart(nil, pub, throttleTopic, driveModeTopic, rcThrottleTopic, minValue, 1., 200)
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	p := NewPart(nil, throttleTopic, driveModeTopic, rcThrottleTopic, minValue, 1., 200)
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	cases := []struct {
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		driveMode        string
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		rcThrottle       types.Throttle
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		expectedThrottle types.Throttle
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		driveMode        events.DriveModeMessage
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		rcThrottle       events.ThrottleMessage
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		expectedThrottle events.ThrottleMessage
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	}{
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		{types.ToString(types.DriveModeUser), types.Throttle{Value: 0.3, Confidence: 1.0},types.Throttle{Value: 0.3, Confidence: 1.0}},
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		{types.ToString(types.DriveModePilot), types.Throttle{Value: 0.5, Confidence: 1.0}, types.Throttle{Value: minValue, Confidence: 1.0}},
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		{types.ToString(types.DriveModePilot), types.Throttle{Value: 0.4, Confidence: 1.0}, types.Throttle{Value: minValue, Confidence: 1.0}},
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		{types.ToString(types.DriveModeUser), types.Throttle{Value: 0.5, Confidence: 1.0}, types.Throttle{Value: 0.5, Confidence: 1.0}},
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		{types.ToString(types.DriveModeUser), types.Throttle{Value: 0.4, Confidence: 1.0}, types.Throttle{Value: 0.4, Confidence: 1.0}},
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		{types.ToString(types.DriveModeUser), types.Throttle{Value: 0.6, Confidence: 1.0}, types.Throttle{Value: 0.6, Confidence: 1.0}},
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		{events.DriveModeMessage{DriveMode: events.DriveMode_USER}, events.ThrottleMessage{Throttle: 0.3, Confidence: 1.0}, events.ThrottleMessage{Throttle: 0.3, Confidence: 1.0}},
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		{events.DriveModeMessage{DriveMode: events.DriveMode_PILOT}, events.ThrottleMessage{Throttle: 0.5, Confidence: 1.0}, events.ThrottleMessage{Throttle: minValue, Confidence: 1.0}},
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		{events.DriveModeMessage{DriveMode: events.DriveMode_PILOT}, events.ThrottleMessage{Throttle: 0.4, Confidence: 1.0}, events.ThrottleMessage{Throttle: minValue, Confidence: 1.0}},
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		{events.DriveModeMessage{DriveMode: events.DriveMode_USER}, events.ThrottleMessage{Throttle: 0.5, Confidence: 1.0}, events.ThrottleMessage{Throttle: 0.5, Confidence: 1.0}},
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		{events.DriveModeMessage{DriveMode: events.DriveMode_USER}, events.ThrottleMessage{Throttle: 0.4, Confidence: 1.0}, events.ThrottleMessage{Throttle: 0.4, Confidence: 1.0}},
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		{events.DriveModeMessage{DriveMode: events.DriveMode_USER}, events.ThrottleMessage{Throttle: 0.6, Confidence: 1.0}, events.ThrottleMessage{Throttle: 0.6, Confidence: 1.0}},
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	}
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	go p.Start()
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	defer func(){close(p.cancel)}()
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	defer func() { close(p.cancel) }()
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	for _, c := range cases {
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		p.onDriveMode(nil, testtools.NewFakeMessage(driveModeTopic, mqttdevice.NewMqttValue(c.driveMode)))
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		p.onRCThrottle(nil, testtools.NewFakeMessage(rcThrottleTopic, mqttdevice.NewMqttValue(c.rcThrottle)))
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		p.onDriveMode(nil, testtools.NewFakeMessageFromProtobuf(driveModeTopic, &c.driveMode))
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		p.onRCThrottle(nil, testtools.NewFakeMessageFromProtobuf(rcThrottleTopic, &c.rcThrottle))
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		time.Sleep(10 * time.Millisecond)
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		for i := 3; i >= 0; i-- {
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			mqttValue := pub.PublishedEvent(throttleTopic)
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			var throttle types.Throttle
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			err := json.Unmarshal(mqttValue, &throttle)
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			var msg events.ThrottleMessage
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			muEventsPublished.Lock()
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			err := proto.Unmarshal(eventsPublished[throttleTopic], &msg)
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			if err != nil {
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				t.Errorf("unable to unmarshall response: %v", err)
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				t.Fail()
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			}
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			muEventsPublished.Unlock()
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			if throttle != c.expectedThrottle {
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				t.Errorf("bad throttle value for mode %v: %v, wants %v", c.driveMode, throttle.Value, c.expectedThrottle)
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			if msg.GetThrottle() != c.expectedThrottle.GetThrottle() {
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				t.Errorf("bad msg value for mode %v: %v, wants %v", c.driveMode, msg.GetThrottle(), c.expectedThrottle.GetThrottle())
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			}
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			if throttle.Confidence != 1. {
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				t.Errorf("bad throtlle confidence: %v, wants %v", throttle.Confidence, 1.)
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			if msg.GetConfidence() != 1. {
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				t.Errorf("bad throtlle confidence: %v, wants %v", msg.GetConfidence(), 1.)
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			}
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			time.Sleep(1 * time.Millisecond)
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