<commit_before>// Copyright © 2015 The Things Network
// Use of this source code is governed by the MIT license that can be found in the LICENSE file.

package mosquitto

import (
	"bytes"
	"encoding/hex"
	"fmt"
	"os/exec"
	"testing"

	MQTT "git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.golang.git"
	"github.com/TheThingsNetwork/ttn/core"
	. "github.com/TheThingsNetwork/ttn/utils/testing"
	"github.com/brocaar/lorawan"
)

/**

- Setup a client
- Create topic on the client and register to them
- Publish to the registration topic and see if nextRegistrationIsTriggered
- Publish to registered topics and see if next() trigger things
- Publish to unregistered topics and make sure next() isn't triggered
- Send() to a given topic and see if client received

*/

type publicationShape struct {
	AppEUI  string
	DevEUI  string
	Topic   string
	Content interface{}
}

type packetShape struct {
	DevAddr lorawan.DevAddr
	Data    string
}

func TestNext(t *testing.T) {
	devices := []PersonnalizedActivation{
		{
			DevAddr: lorawan.DevAddr([4]byte{0, 0, 0, 1}),
			NwkSKey: lorawan.AES128Key([16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}),
			AppSKey: lorawan.AES128Key([16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}),
		},
		{
			DevAddr: lorawan.DevAddr([4]byte{2, 2, 2, 2}),
			NwkSKey: lorawan.AES128Key([16]byte{2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2}),
			AppSKey: lorawan.AES128Key([16]byte{1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2}),
		},
	}

	applications := []lorawan.EUI64{
		lorawan.EUI64([8]byte{1, 2, 3, 4, 5, 6, 7, 8}),
		lorawan.EUI64([8]byte{1, 1, 2, 2, 3, 3, 4, 4}),
	}

	tests := []struct {
		Desc          string
		Registrations []publicationShape
		Publication   publicationShape
		WantPacket    packetShape
		WantError     *string
	}{
		{
			Desc: "Register #0 | Publish #0 -> #0",
			Registrations: []publicationShape{
				{
					AppEUI:  hex.EncodeToString(applications[0][:]),
					DevEUI:  "personnalized",
					Topic:   TOPIC_ACTIVATIONS,
					Content: devices[0],
				},
			},
			Publication: publicationShape{
				AppEUI:  hex.EncodeToString(applications[0][:]),
				DevEUI:  fmt.Sprintf("%s%s", hex.EncodeToString([]byte{0, 0, 0, 0}), hex.EncodeToString(devices[0].DevAddr[:])),
				Topic:   TOPIC_UPLINK,
				Content: "Data",
			},
			WantPacket: packetShape{
				DevAddr: devices[0].DevAddr,
				Data:    "Data",
			},
			WantError: nil,
		},
	}

	for _, test := range tests {
		// Describe
		Desc(t, test.Desc)

		// Build
		if err := exec.Command("sh", "-c", "mosquitto -p 33333").Run(); err != nil {
			panic(err)
		}
		adapter, mosquitto := genAdapter(t, test.Registrations, 33333)

		// Operate
		mosquitto.Publish(test.Publication)
		packet, _, err := adapter.Next()

		// Check
		checkErrors(t, test.WantError, err)
		checkPackets(t, test.WantPacket, packet)
	}
}

// ----- BUILD utilities
type Mosquitto struct {
	MQTT *MQTT.Client
}

func (m *Mosquitto) Publish(p publicationShape) {
	topic := fmt.Sprintf("%s/%s/%s/%s", p.AppEUI, RESOURCE, p.DevEUI, TOPIC_ACTIVATIONS)
	if token := m.MQTT.Publish(topic, 2, true, p.Content); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}
}

func genAdapter(t *testing.T, registrations []publicationShape, port int) (*Adapter, *Mosquitto) {
	mqttBroker := fmt.Sprintf("tcp://localhost:%d", port)

	// Prepare client
	opts := MQTT.NewClientOptions()
	opts.AddBroker(mqttBroker)
	opts.SetClientID("TestClient")
	client := MQTT.NewClient(opts)
	if token := client.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}
	for _, r := range registrations {
		topic := fmt.Sprintf("%s/%s/%s/%s", r.AppEUI, RESOURCE, r.DevEUI, TOPIC_ACTIVATIONS)
		dev := r.Content.(PersonnalizedActivation)
		buf := new(bytes.Buffer)
		buf.Write(dev.DevAddr[:])
		buf.Write(dev.NwkSKey[:])
		buf.Write(dev.AppSKey[:])
		client.Publish(topic, 2, true, buf.Bytes())
	}
	mosquitto := &Mosquitto{MQTT: client}

	// Prepare adapter
	ctx := GetLogger(t, "Adapter")
	adapter, err := NewAdapter(mqttBroker, ctx)
	if err != nil {
		panic(err)
	}

	// Send them all
	return adapter, mosquitto
}

// ----- OPERATE utilities

// ----- CHECK utilities
func checkErrors(t *testing.T, want *string, got error) {

}

func checkPackets(t *testing.T, want packetShape, got core.Packet) {

}<commit_msg>[refactor] Create check utilities methods<commit_after>// Copyright © 2015 The Things Network
// Use of this source code is governed by the MIT license that can be found in the LICENSE file.

package mosquitto

import (
	"bytes"
	"encoding/hex"
	"fmt"
	"os/exec"
	"testing"

	MQTT "git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.golang.git"
	"github.com/TheThingsNetwork/ttn/core"
	"github.com/TheThingsNetwork/ttn/utils/errors"
	. "github.com/TheThingsNetwork/ttn/utils/testing"
	"github.com/brocaar/lorawan"
)

type publicationShape struct {
	AppEUI  string
	DevEUI  string
	Topic   string
	Content interface{}
}

type packetShape struct {
	DevAddr lorawan.DevAddr
	Data    string
}

func TestNext(t *testing.T) {
	devices := []PersonnalizedActivation{
		{
			DevAddr: lorawan.DevAddr([4]byte{0, 0, 0, 1}),
			NwkSKey: lorawan.AES128Key([16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}),
			AppSKey: lorawan.AES128Key([16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}),
		},
		{
			DevAddr: lorawan.DevAddr([4]byte{2, 2, 2, 2}),
			NwkSKey: lorawan.AES128Key([16]byte{2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2}),
			AppSKey: lorawan.AES128Key([16]byte{1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2}),
		},
	}

	applications := []lorawan.EUI64{
		lorawan.EUI64([8]byte{1, 2, 3, 4, 5, 6, 7, 8}),
		lorawan.EUI64([8]byte{1, 1, 2, 2, 3, 3, 4, 4}),
	}

	tests := []struct {
		Desc          string
		Registrations []publicationShape
		Publication   publicationShape
		WantPacket    packetShape
		WantError     *string
	}{
		{
			Desc: "Register #0 | Publish #0 -> #0",
			Registrations: []publicationShape{
				{
					AppEUI:  hex.EncodeToString(applications[0][:]),
					DevEUI:  "personnalized",
					Topic:   TOPIC_ACTIVATIONS,
					Content: devices[0],
				},
			},
			Publication: publicationShape{
				AppEUI:  hex.EncodeToString(applications[0][:]),
				DevEUI:  fmt.Sprintf("%s%s", hex.EncodeToString([]byte{0, 0, 0, 0}), hex.EncodeToString(devices[0].DevAddr[:])),
				Topic:   TOPIC_UPLINK,
				Content: "Data",
			},
			WantPacket: packetShape{
				DevAddr: devices[0].DevAddr,
				Data:    "Data",
			},
			WantError: nil,
		},
	}

	for _, test := range tests {
		// Describe
		Desc(t, test.Desc)

		// Build
		if err := exec.Command("sh", "-c", "mosquitto -p 33333").Run(); err != nil {
			panic(err)
		}
		adapter, mosquitto := genAdapter(t, test.Registrations, 33333)

		// Operate
		mosquitto.Publish(test.Publication)
		packet, _, err := adapter.Next()

		// Check
		checkErrors(t, test.WantError, err)
		checkPackets(t, test.WantPacket, packet)
	}
}

// ----- BUILD utilities
type Mosquitto struct {
	MQTT *MQTT.Client
}

func (m *Mosquitto) Publish(p publicationShape) {
	topic := fmt.Sprintf("%s/%s/%s/%s", p.AppEUI, RESOURCE, p.DevEUI, TOPIC_ACTIVATIONS)
	if token := m.MQTT.Publish(topic, 2, true, p.Content); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}
}

func genAdapter(t *testing.T, registrations []publicationShape, port int) (*Adapter, *Mosquitto) {
	mqttBroker := fmt.Sprintf("tcp://localhost:%d", port)

	// Prepare client
	opts := MQTT.NewClientOptions()
	opts.AddBroker(mqttBroker)
	opts.SetClientID("TestClient")
	client := MQTT.NewClient(opts)
	if token := client.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}
	for _, r := range registrations {
		topic := fmt.Sprintf("%s/%s/%s/%s", r.AppEUI, RESOURCE, r.DevEUI, TOPIC_ACTIVATIONS)
		dev := r.Content.(PersonnalizedActivation)
		buf := new(bytes.Buffer)
		buf.Write(dev.DevAddr[:])
		buf.Write(dev.NwkSKey[:])
		buf.Write(dev.AppSKey[:])
		client.Publish(topic, 2, true, buf.Bytes())
	}
	mosquitto := &Mosquitto{MQTT: client}

	// Prepare adapter
	ctx := GetLogger(t, "Adapter")
	adapter, err := NewAdapter(mqttBroker, ctx)
	if err != nil {
		panic(err)
	}

	// Send them all
	return adapter, mosquitto
}

// ----- CHECK utilities
func checkErrors(t *testing.T, want *string, got error) {
	if want == nil && got == nil || got.(errors.Failure).Nature == *want {
		Ok(t, "Check errors")
		return
	}

	Ko(t, "Expected error to be %s but got %v", want, got)
}

func checkPackets(t *testing.T, want packetShape, got core.Packet) {
	devAddr, err := got.DevAddr()
	if err != nil {
		Ko(t, "Received a wrongly formatted packet: %+v", got)
		return
	}

	if devAddr != want.DevAddr {
		Ko(t, "Expected address [%v] but got [%v]", want.DevAddr, devAddr)
		return
	}

	data, ok := got.Payload.MACPayload.(*lorawan.MACPayload)
	if !ok {
		Ko(t, "Received a wrongly formatted packet: %+v", got)
		return
	}

	if len(data.FRMPayload) != 1 {
		Ko(t, "Received a wrongly formatted packet: %+v", got)
		return
	}

	msg := string(data.FRMPayload[0].(*lorawan.DataPayload).Bytes)

	if want.Data != msg {
		Ko(t, `Expected msg to be "%s" but got "%s"`, want.Data, msg)
		return
	}

	Ok(t, "Check packets")
}
{'fraction_non_alphanumeric': 0.16853932584269662, 'fraction_numerical': 0.033598778226246316, 'mean_word_length': 3.632642748863062, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 2, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '7645426', 'n_tokens_mistral': 4119, 'n_tokens_neox': 3540, 'n_words': 870}