github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/communication/nats/message_custom_test.go (about)

     1  /*
     2   * Copyright (C) 2017 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program is free software: you can redistribute it and/or modify
     5   * it under the terms of the GNU General Public License as published by
     6   * the Free Software Foundation, either version 3 of the License, or
     7   * (at your option) any later version.
     8   *
     9   * This program is distributed in the hope that it will be useful,
    10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12   * GNU General Public License for more details.
    13   *
    14   * You should have received a copy of the GNU General Public License
    15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package nats
    19  
    20  import (
    21  	"testing"
    22  
    23  	"github.com/mysteriumnetwork/node/communication"
    24  	"github.com/nats-io/nats.go"
    25  	"github.com/stretchr/testify/assert"
    26  )
    27  
    28  type customMessage struct {
    29  	Field int
    30  }
    31  
    32  type customMessageProducer struct {
    33  	Message *customMessage
    34  }
    35  
    36  func (producer *customMessageProducer) GetMessageEndpoint() (communication.MessageEndpoint, error) {
    37  	return communication.MessageEndpoint("custom-message"), nil
    38  }
    39  
    40  func (producer *customMessageProducer) Produce() (messagePtr interface{}) {
    41  	return producer.Message
    42  }
    43  
    44  func TestMessageCustomSend(t *testing.T) {
    45  	connection := StartConnectionMock()
    46  	defer connection.Close()
    47  
    48  	sender := &senderNATS{
    49  		connection: connection,
    50  		codec:      communication.NewCodecJSON(),
    51  	}
    52  
    53  	err := sender.Send(&customMessageProducer{&customMessage{123}})
    54  	assert.NoError(t, err)
    55  	assert.JSONEq(t, `{"Field": 123}`, string(connection.GetLastMessage()))
    56  }
    57  
    58  func TestMessageCustomSendNull(t *testing.T) {
    59  	connection := StartConnectionMock()
    60  	defer connection.Close()
    61  
    62  	sender := &senderNATS{
    63  		connection: connection,
    64  		codec:      communication.NewCodecJSON(),
    65  	}
    66  
    67  	err := sender.Send(&customMessageProducer{})
    68  	assert.NoError(t, err)
    69  	assert.JSONEq(t, `null`, string(connection.GetLastMessage()))
    70  }
    71  
    72  type customMessageConsumer struct {
    73  	messageReceived chan interface{}
    74  }
    75  
    76  func (consumer *customMessageConsumer) GetMessageEndpoint() (communication.MessageEndpoint, error) {
    77  	return communication.MessageEndpoint("custom-message"), nil
    78  }
    79  
    80  func (consumer *customMessageConsumer) NewMessage() (messagePtr interface{}) {
    81  	return &customMessage{}
    82  }
    83  
    84  func (consumer *customMessageConsumer) Consume(messagePtr interface{}) error {
    85  	consumer.messageReceived <- messagePtr
    86  	return nil
    87  }
    88  
    89  func TestMessageCustomReceive(t *testing.T) {
    90  	connection := StartConnectionMock()
    91  	defer connection.Close()
    92  
    93  	receiver := &receiverNATS{
    94  		connection: connection,
    95  		codec:      communication.NewCodecJSON(),
    96  		subs:       make(map[string]*nats.Subscription),
    97  	}
    98  
    99  	consumer := &customMessageConsumer{messageReceived: make(chan interface{})}
   100  	err := receiver.Receive(consumer)
   101  	assert.NoError(t, err)
   102  
   103  	connection.Publish("custom-message", []byte(`{"Field":123}`))
   104  	message, err := connection.MessageWait(consumer.messageReceived)
   105  	assert.NoError(t, err)
   106  	assert.Exactly(t, customMessage{123}, *message.(*customMessage))
   107  }