+func TestKafkaPollingAgentTimedOut_shouldResultInEMptyMessages(t *testing.T) {
+ assertions := require.New(t)
+
+ kafkaFactoryMock := mocks.KafkaFactory{}
+ kafkaConsumerMock := mocks.KafkaConsumer{}
+ kafkaConsumerMock.On("Commit").Return([]kafka.TopicPartition{}, error(nil))
+ kafkaConsumerMock.On("Subscribe", mock.Anything).Return(error(nil))
+ kafkaConsumerMock.On("ReadMessage", mock.Anything).Return(nil, kafka.NewError(kafka.ErrTimedOut, "", false))
+ kafkaFactoryMock.On("NewKafkaConsumer", mock.Anything).Return(kafkaConsumerMock, nil)
+
+ pollingAgentUnderTest := newKafkaPollingAgent(kafkaFactoryMock, "")
+ messages, err := pollingAgentUnderTest.pollMessages()
+
+ assertions.Equal([]byte(""), messages)
+ assertions.Nil(err)
+}
+
+func TestJobWithoutParameters_shouldSendOneMessageAtATime(t *testing.T) {
+ assertions := require.New(t)
+
+ wg := sync.WaitGroup{}
+ messageNo := 1
+ distributeClientMock := NewTestClient(func(req *http.Request) *http.Response {
+ if req.URL.String() == "http://consumerHost/target" {
+ assertions.Equal(req.Method, "POST")
+ assertions.Equal(fmt.Sprint("message", messageNo), getBodyAsString(req, t))
+ messageNo++
+ assertions.Equal("text/plain", req.Header.Get("Content-Type"))
+ wg.Done()
+ return &http.Response{
+ StatusCode: 200,
+ Body: ioutil.NopCloser(bytes.NewBufferString(`OK`)),
+ Header: make(http.Header), // Must be set to non-nil value or it panics
+ }
+ }
+ t.Error("Wrong call to client: ", req)
+ t.Fail()
+ return nil
+ })
+
+ jobUnderTest := newJob(JobInfo{
+ sourceType: kafkaSource,
+ TargetUri: "http://consumerHost/target",
+ }, distributeClientMock)
+
+ wg.Add(2)
+ go jobUnderTest.start()
+
+ jobUnderTest.messagesChannel <- []byte("message1")
+ jobUnderTest.messagesChannel <- []byte("message2")
+
+ if waitTimeout(&wg, 2*time.Second) {
+ t.Error("Not all calls to server were made")
+ t.Fail()
+ }
+}
+
+func TestJobWithBufferedParameters_shouldSendMessagesTogether(t *testing.T) {
+ assertions := require.New(t)
+
+ wg := sync.WaitGroup{}
+ distributeClientMock := NewTestClient(func(req *http.Request) *http.Response {
+ if req.URL.String() == "http://consumerHost/target" {
+ assertions.Equal(req.Method, "POST")
+ assertions.Equal(`["{\"data\": 1}","{\"data\": 2}","ABCDEFGH"]`, getBodyAsString(req, t))
+ assertions.Equal("application/json", req.Header.Get("Content-Type"))
+ wg.Done()
+ return &http.Response{
+ StatusCode: 200,
+ Body: ioutil.NopCloser(bytes.NewBufferString(`OK`)),
+ Header: make(http.Header), // Must be set to non-nil value or it panics
+ }
+ }
+ t.Error("Wrong call to client: ", req)
+ t.Fail()
+ return nil
+ })
+
+ jobUnderTest := newJob(JobInfo{
+ TargetUri: "http://consumerHost/target",
+ InfoJobData: Parameters{
+ BufferTimeout: BufferTimeout{
+ MaxSize: 5,
+ MaxTimeMiliseconds: 200,
+ },
+ },
+ }, distributeClientMock)
+
+ wg.Add(1)
+ go jobUnderTest.start()
+
+ go func() {
+ jobUnderTest.messagesChannel <- []byte(`{"data": 1}`)
+ jobUnderTest.messagesChannel <- []byte(`{"data": 2}`)
+ jobUnderTest.messagesChannel <- []byte("ABCDEFGH")
+ }()
+
+ if waitTimeout(&wg, 2*time.Second) {
+ t.Error("Not all calls to server were made")
+ t.Fail()
+ }
+}
+
+func TestJobReadMoreThanBufferSizeMessages_shouldOnlyReturnMaxSizeNoOfMessages(t *testing.T) {
+ assertions := require.New(t)
+
+ jobUnderTest := newJob(JobInfo{}, nil)
+
+ go func() {
+ for i := 0; i < 4; i++ {
+ jobUnderTest.messagesChannel <- []byte(strconv.Itoa(i))
+ }
+ }()
+
+ msgs := jobUnderTest.read(BufferTimeout{
+ MaxSize: 2,
+ MaxTimeMiliseconds: 200,
+ })
+
+ assertions.Equal([]byte("[\"0\",\"1\"]"), msgs)
+}
+func TestJobReadBufferedWhenTimeout_shouldOnlyReturnMessagesSentBeforeTimeout(t *testing.T) {
+ assertions := require.New(t)
+
+ jobUnderTest := newJob(JobInfo{}, nil)
+
+ go func() {
+ for i := 0; i < 4; i++ {
+ time.Sleep(10 * time.Millisecond)
+ jobUnderTest.messagesChannel <- []byte(strconv.Itoa(i))
+ }
+ }()
+
+ msgs := jobUnderTest.read(BufferTimeout{
+ MaxSize: 2,
+ MaxTimeMiliseconds: 30,
+ })
+
+ assertions.Equal([]byte("[\"0\",\"1\"]"), msgs)
+}
+