juplo.de Git - demos/kafka/wordcount/blob - src/test/java/de/juplo/kafka/wordcount/query/QueryApplicationIT.java

   1 package de.juplo.kafka.wordcount.query;
   2
   3 import com.fasterxml.jackson.databind.ObjectMapper;
   4 import lombok.extern.slf4j.Slf4j;
   5 import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
   6 import org.apache.kafka.streams.state.Stores;
   7 import org.junit.jupiter.api.BeforeAll;
   8 import org.junit.jupiter.api.DisplayName;
   9 import org.junit.jupiter.api.Test;
  10 import org.springframework.beans.factory.annotation.Autowired;
  11 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
  12 import org.springframework.boot.test.context.SpringBootTest;
  13 import org.springframework.boot.test.context.TestConfiguration;
  14 import org.springframework.context.annotation.Bean;
  15 import org.springframework.context.annotation.Primary;
  16 import org.springframework.http.MediaType;
  17 import org.springframework.kafka.core.KafkaTemplate;
  18 import org.springframework.kafka.support.SendResult;
  19 import org.springframework.kafka.test.context.EmbeddedKafka;
  20 import org.springframework.test.web.servlet.MockMvc;
  21 import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
  22
  23 import java.nio.charset.StandardCharsets;
  24 import java.time.Duration;
  25 import java.util.concurrent.CompletableFuture;
  26
  27 import static de.juplo.kafka.wordcount.query.QueryStreamProcessor.STORE_NAME;
  28 import static org.awaitility.Awaitility.await;
  29 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
  30
  31
  32 @SpringBootTest(
  33                 properties = {
  34                                 "spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer",
  35                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  36                                 "spring.kafka.producer.properties.spring.json.type.mapping=userdata:de.juplo.kafka.wordcount.users.TestUserData,ranking:de.juplo.kafka.wordcount.top10.TestRanking",
  37                                 "logging.level.root=WARN",
  38                                 "logging.level.de.juplo=DEBUG",
  39                                 "logging.level.org.apache.kafka.clients=INFO",
  40                                 "logging.level.org.apache.kafka.streams=INFO",
  41                                 "juplo.wordcount.query.bootstrap-server=${spring.embedded.kafka.brokers}",
  42                                 "juplo.wordcount.query.users-input-topic=" + QueryApplicationIT.TOPIC_USERS,
  43                                 "juplo.wordcount.query.ranking-input-topic=" + QueryApplicationIT.TOPIC_TOP10 })
  44 @AutoConfigureMockMvc
  45 @EmbeddedKafka(topics = { QueryApplicationIT.TOPIC_TOP10, QueryApplicationIT.TOPIC_USERS})
  46 @Slf4j
  47 public class QueryApplicationIT
  48 {
  49         public static final String TOPIC_TOP10 = "top10";
  50         public static final String TOPIC_USERS = "users";
  51
  52
  53         @Autowired
  54         MockMvc mockMvc;
  55         @Autowired
  56         ObjectMapper objectMapper;
  57         @Autowired
  58         QueryStreamProcessor streamProcessor;
  59
  60
  61         @BeforeAll
  62         public static void testSendMessage(
  63                         @Autowired KafkaTemplate<String, Object> kafkaTemplate)
  64         {
  65                 TestData
  66                                 .getUsersMessages()
  67                                 .forEach(kv -> flush(kafkaTemplate.send(TOPIC_USERS, kv.key, kv.value)));
  68                 TestData
  69                                 .getTop10Messages()
  70                                 .forEach(kv -> flush(kafkaTemplate.send(TOPIC_TOP10, kv.key, kv.value)));
  71         }
  72
  73         private static void flush(CompletableFuture<SendResult<String, Object>> future)
  74         {
  75                 try
  76                 {
  77                         SendResult<String, Object> result = future.get();
  78                         log.info(
  79                                         "Sent: {}={}, partition={}, offset={}",
  80                                         result.getProducerRecord().key(),
  81                                         result.getProducerRecord().value(),
  82                                         result.getRecordMetadata().partition(),
  83                                         result.getRecordMetadata().offset());
  84                 }
  85                 catch (Exception e)
  86                 {
  87                         throw new RuntimeException(e);
  88                 }
  89         }
  90
  91         @DisplayName("Await, that the expected state is visible in the state-store")
  92         @Test
  93         public void testAwaitExpectedStateInStore()
  94         {
  95                 await("The expected state is visible in the state-store")
  96                                 .atMost(Duration.ofSeconds(5))
  97                                 .untilAsserted(() -> TestData.assertExpectedState(user -> streamProcessor.getStore().get(user)));
  98         }
  99
 100         @DisplayName("Await, that the expected state is queryable")
 101         @Test
 102         public void testAwaitExpectedStateIsQueryable()
 103         {
 104                 await("The expected state is queryable")
 105                                 .atMost(Duration.ofSeconds(5))
 106                                 .untilAsserted(() -> TestData.assertExpectedState(user -> requestUserRankingFor(user)));
 107         }
 108
 109         private UserRanking requestUserRankingFor(String user)
 110         {
 111                 try
 112                 {
 113                         return objectMapper.readValue(
 114                                         mockMvc
 115                                                         .perform(MockMvcRequestBuilders.get("/{user}", user)
 116                                                                         .contentType(MediaType.APPLICATION_JSON))
 117                                                         .andExpect(status().isOk())
 118                                                         .andReturn()
 119                                                         .getResponse()
 120                                                         .getContentAsString(StandardCharsets.UTF_8),
 121                                         UserRanking.class);
 122                 }
 123                 catch (Exception e)
 124                 {
 125                         throw new RuntimeException(e);
 126                 }
 127         }
 128
 129         @TestConfiguration
 130         static class Configuration
 131         {
 132                 @Primary
 133                 @Bean
 134                 KeyValueBytesStoreSupplier inMemoryStoreSupplier()
 135                 {
 136                         return Stores.inMemoryKeyValueStore(STORE_NAME);
 137                 }
 138         }
 139 }