sarama/kafka/consumer_test.go

package kafka

import (
	"encoding/binary"
	"sarama/mock"
	"testing"
)

func TestSimpleConsumer(t *testing.T) {
	masterResponses := make(chan []byte, 1)
	extraResponses := make(chan []byte, 2)
	mockBroker := mock.NewBroker(t, masterResponses)
	mockExtra := mock.NewBroker(t, extraResponses)
	defer mockBroker.Close()
	defer mockExtra.Close()

	// return the extra mock as another available broker
	response := []byte{
		0x00, 0x00, 0x00, 0x01,
		0x00, 0x00, 0x00, 0x01,
		0x00, 0x09, 'l', 'o', 'c', 'a', 'l', 'h', 'o', 's', 't',
		0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x01,
		0x00, 0x00,
		0x00, 0x07, 'm', 'y', 'T', 'o', 'p', 'i', 'c',
		0x00, 0x00, 0x00, 0x01,
		0x00, 0x00,
		0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x01,
		0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00}
	binary.BigEndian.PutUint32(response[19:], uint32(mockExtra.Port()))
	masterResponses <- response
	extraResponses <- nil
	extraResponses <- []byte{
		0x00, 0x00, 0x00, 0x01,
		0x00, 0x07, 'm', 'y', 'T', 'o', 'p', 'i', 'c',
		0x00, 0x00, 0x00, 0x01,
		0x00, 0x00, 0x00, 0x00,
		0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00}

	client, err := NewClient("clientID", "localhost", mockBroker.Port())
	if err != nil {
		t.Fatal(err)
	}

	consumer, err := NewConsumer(client, "myTopic", 0, "myConsumerGroup")
	if err != nil {
		t.Fatal(err)
	}

	consumer.Close()
	client.Close()
}