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