X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fcounter%2FCounterStreamProcessorTopologyTest.java;h=e80e383108569f4f1fb35babda6b152b854b1826;hb=refs%2Fheads%2Fcounter;hp=e5964dc7eebc35d21d2e03c95804734775187889;hpb=3c23bfd42005211ac9812fba698ab74c8a6b7aa0;p=demos%2Fkafka%2Fwordcount

diff --git a/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java b/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java
index e5964dc..e80e383 100644
--- a/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java
+++ b/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java
@@ -1,94 +1,130 @@
 package de.juplo.kafka.wordcount.counter;
 
+import de.juplo.kafka.wordcount.splitter.TestInputUser;
 import de.juplo.kafka.wordcount.splitter.TestInputWord;
 import de.juplo.kafka.wordcount.top10.TestOutputWord;
 import de.juplo.kafka.wordcount.top10.TestOutputWordCounter;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.common.serialization.StringSerializer;
 import org.apache.kafka.streams.TestInputTopic;
 import org.apache.kafka.streams.TestOutputTopic;
 import org.apache.kafka.streams.Topology;
 import org.apache.kafka.streams.TopologyTestDriver;
+import org.apache.kafka.streams.state.KeyValueStore;
 import org.apache.kafka.streams.state.Stores;
-import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.springframework.kafka.support.serializer.JsonDeserializer;
 import org.springframework.kafka.support.serializer.JsonSerializer;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
 
+import java.util.Map;
+
 import static de.juplo.kafka.wordcount.counter.CounterApplicationConfiguriation.serializationConfig;
-import static de.juplo.kafka.wordcount.counter.TestData.parseHeader;
-import static org.springframework.kafka.support.mapping.AbstractJavaTypeMapper.DEFAULT_CLASSID_FIELD_NAME;
-import static org.springframework.kafka.support.mapping.AbstractJavaTypeMapper.KEY_DEFAULT_CLASSID_FIELD_NAME;
+import static de.juplo.kafka.wordcount.counter.CounterStreamProcessor.STORE_NAME;
 
 
 @Slf4j
 public class CounterStreamProcessorTopologyTest
 {
-  public final static String IN = "TEST-IN";
-  public final static String OUT = "TEST-OUT";
+  public static final String IN = "TEST-IN";
+  public static final String OUT = "TEST-OUT";
 
 
-  TopologyTestDriver testDriver;
-  TestInputTopic<String, TestInputWord> in;
-  TestOutputTopic<TestOutputWord, TestOutputWordCounter> out;
+  static TopologyTestDriver testDriver;
+  static MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages = new LinkedMultiValueMap<>();
 
 
-  @BeforeEach
-  public void setUpTestDriver()
+  @BeforeAll
+  public static void setUpTestDriver()
   {
     Topology topology = CounterStreamProcessor.buildTopology(
         IN,
         OUT,
-        Stores.inMemoryKeyValueStore("TOPOLOGY-TEST"));
+        Stores.inMemoryKeyValueStore(STORE_NAME));
 
     testDriver = new TopologyTestDriver(topology, serializationConfig());
 
-    in = testDriver.createInputTopic(
-        IN,
-        new StringSerializer(),
-        new JsonSerializer().noTypeInfo());
-
-    out = testDriver.createOutputTopic(
-        OUT,
-        new JsonDeserializer()
-            .copyWithType(TestOutputWord.class)
-            .ignoreTypeHeaders(),
-        new JsonDeserializer()
-            .copyWithType(TestOutputWordCounter.class)
-            .ignoreTypeHeaders());
-  }
-
+    TestInputTopic<TestInputUser, TestInputWord> in =
+        testDriver.createInputTopic(IN, serializer(), serializer());
+    TestOutputTopic<TestOutputWord, TestOutputWordCounter> out =
+        testDriver.createOutputTopic(OUT, keyDeserializer(), valueDeserializer());
 
-  @Test
-  public void test()
-  {
     TestData
         .getInputMessages()
-        .forEach(word -> in.pipeInput(word.getUser(), word));
+        .forEach(kv -> in.pipeInput(kv.key, kv.value));
 
-    MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages = new LinkedMultiValueMap<>();
+    receivedMessages = new LinkedMultiValueMap<>();
     out
         .readRecordsToList()
-        .forEach(record ->
-        {
-          log.debug(
-              "OUT: {} -> {}, {}, {}",
-              record.key(),
-              record.value(),
-              parseHeader(record.headers(), KEY_DEFAULT_CLASSID_FIELD_NAME),
-              parseHeader(record.headers(), DEFAULT_CLASSID_FIELD_NAME));
-          receivedMessages.add(record.key(), record.value());
-        });
+        .forEach(record -> receivedMessages.add(record.key(), record.value()));
+  }
+
 
+  @DisplayName("Assert the expected output messages")
+  @Test
+  public void testExpectedMessages()
+  {
     TestData.assertExpectedMessages(receivedMessages);
   }
 
-  @AfterEach
-  public void tearDown()
+  @DisplayName("Assert the expected number of messages")
+  @Test
+  public void testExpectedNumberOfMessagesForWord()
+  {
+    TestData.assertExpectedNumberOfMessagesForWord(receivedMessages);
+  }
+
+  @DisplayName("Await the expected final output messages")
+  @Test
+  public void testExpectedLastMessagesForWord()
+  {
+    TestData.assertExpectedLastMessagesForWord(receivedMessages);
+  }
+
+  @DisplayName("Assert the expected state in the state-store")
+  @Test
+  public void testExpectedState()
+  {
+    KeyValueStore<Word, Long> store = testDriver.getKeyValueStore(STORE_NAME);
+    TestData.assertExpectedState(store);
+  }
+
+  @AfterAll
+  public static void tearDown()
   {
     testDriver.close();
   }
+
+
+  private static JsonSerializer serializer()
+  {
+    return new JsonSerializer().noTypeInfo();
+  }
+
+  private static JsonDeserializer<TestOutputWord> keyDeserializer()
+  {
+    return deserializer(true);
+  }
+
+  private static JsonDeserializer<TestOutputWordCounter> valueDeserializer()
+  {
+    return deserializer(false);
+  }
+
+  private static <T> JsonDeserializer<T> deserializer(boolean isKey)
+  {
+    JsonDeserializer<T> deserializer = new JsonDeserializer<>();
+    deserializer.configure(
+        Map.of(JsonDeserializer.TYPE_MAPPINGS, typeMappingsConfig()),
+        isKey);
+    return deserializer;
+  }
+
+  private static String typeMappingsConfig()
+  {
+    return CounterStreamProcessor.typeMappingsConfig(TestOutputWord.class, TestOutputWordCounter.class);
+  }
 }