juplo.de Git - demos/kafka/training/blob - src/test/java/de/juplo/kafka/ApplicationTests.java

   1 package de.juplo.kafka;
   2
   3 import lombok.extern.slf4j.Slf4j;
   4 import org.apache.kafka.clients.consumer.ConsumerRecord;
   5 import org.junit.jupiter.api.*;
   6 import org.springframework.beans.factory.annotation.Autowired;
   7 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
   8 import org.springframework.boot.test.context.SpringBootTest;
   9 import org.springframework.boot.test.context.TestConfiguration;
  10 import org.springframework.context.annotation.Bean;
  11 import org.springframework.http.MediaType;
  12 import org.springframework.kafka.annotation.KafkaListener;
  13 import org.springframework.kafka.test.context.EmbeddedKafka;
  14 import org.springframework.test.web.servlet.MockMvc;
  15
  16 import java.time.Duration;
  17 import java.util.LinkedList;
  18 import java.util.List;
  19
  20 import static de.juplo.kafka.ApplicationTests.PARTITIONS;
  21 import static de.juplo.kafka.ApplicationTests.TOPIC;
  22 import static org.awaitility.Awaitility.*;
  23 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
  24 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
  25
  26
  27 @SpringBootTest(
  28                 properties = {
  29                                 "spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
  30                                 "sumup.gateway.topic=" + TOPIC})
  31 @AutoConfigureMockMvc
  32 @EmbeddedKafka(topics = TOPIC, partitions = PARTITIONS)
  33 @Slf4j
  34 public class ApplicationTests
  35 {
  36         static final String TOPIC = "FOO";
  37         static final int PARTITIONS = 10;
  38
  39         @Autowired
  40         MockMvc mockMvc;
  41         @Autowired
  42         Consumer consumer;
  43
  44
  45         @BeforeEach
  46         public void clear()
  47         {
  48                 consumer.received.clear();
  49         }
  50
  51
  52         @Test
  53         void testSendMessage() throws Exception
  54         {
  55                 mockMvc
  56                                 .perform(post("/peter")
  57                                                 .content("66")
  58                                                 .contentType(MediaType.APPLICATION_JSON))
  59                                 .andExpect(status().isOk());
  60                 await("Message was send")
  61                                 .atMost(Duration.ofSeconds(5))
  62                                 .until(() -> consumer.received.size() == 1);
  63         }
  64
  65
  66         static class Consumer
  67         {
  68                 final List<ConsumerRecord<String, String>> received = new LinkedList<>();
  69
  70                 @KafkaListener(groupId = "TEST", topics = TOPIC)
  71                 public void receive(ConsumerRecord<String, String> record)
  72                 {
  73                         log.debug("Received message: {}", record);
  74                         received.add(record);
  75                 }
  76         }
  77
  78         @TestConfiguration
  79         static class Configuration
  80         {
  81                 @Bean
  82                 Consumer consumer()
  83                 {
  84                         return new Consumer();
  85                 }
  86         }
  87 }