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=42ca78b961c444eb1c01b1627926c49ac3f918d5;hpb=ff29d17cc2b1fa9b465c1874e387c23b7d7adc4e;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 42ca78b..e80e383 100644
--- a/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java
+++ b/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java
@@ -1,72 +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.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.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.JsonSerde;
 import org.springframework.kafka.support.serializer.JsonSerializer;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
 
-import java.util.List;
 import java.util.Map;
-import java.util.Properties;
-import java.util.stream.Collectors;
 
+import static de.juplo.kafka.wordcount.counter.CounterApplicationConfiguriation.serializationConfig;
+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";
 
-  @Test
-  public void test()
+
+  static TopologyTestDriver testDriver;
+  static MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages = new LinkedMultiValueMap<>();
+
+
+  @BeforeAll
+  public static void setUpTestDriver()
   {
     Topology topology = CounterStreamProcessor.buildTopology(
         IN,
         OUT,
-        Stores.inMemoryKeyValueStore("TOPOLOGY-TEST"));
-
-    CounterApplicationConfiguriation applicationConfiguriation =
-        new CounterApplicationConfiguriation();
-    Properties streamProcessorProperties =
-        applicationConfiguriation.streamProcessorProperties(new CounterApplicationProperties());
-
-    Map<String, ?> propertyMap = streamProcessorProperties
-        .entrySet()
-        .stream()
-        .collect(
-            Collectors.toMap(
-                entry -> (String)entry.getKey(),
-                entry -> entry.getValue()
-            ));
-    JsonSerde<?> keySerde = new JsonSerde<>();
-    keySerde.configure(propertyMap, true);
-    JsonSerde<?> valueSerde = new JsonSerde<>();
-    valueSerde.configure(propertyMap, false);
-
-    TopologyTestDriver testDriver = new TopologyTestDriver(topology, streamProcessorProperties);
-
-    TestInputTopic<String, Word> in = testDriver.createInputTopic(
-        IN,
-        (JsonSerializer<String>)keySerde.serializer(),
-        (JsonSerializer<Word>)valueSerde.serializer());
+        Stores.inMemoryKeyValueStore(STORE_NAME));
 
-    TestOutputTopic<Word, WordCount> out = testDriver.createOutputTopic(
-        OUT,
-        (JsonDeserializer<Word>)keySerde.deserializer(),
-        (JsonDeserializer<WordCount>)valueSerde.deserializer());
+    testDriver = new TopologyTestDriver(topology, serializationConfig());
+
+    TestInputTopic<TestInputUser, TestInputWord> in =
+        testDriver.createInputTopic(IN, serializer(), serializer());
+    TestOutputTopic<TestOutputWord, TestOutputWordCounter> out =
+        testDriver.createOutputTopic(OUT, keyDeserializer(), valueDeserializer());
 
-    TestData.writeInputData((key, value) -> in.pipeInput(key, value));
+    TestData
+        .getInputMessages()
+        .forEach(kv -> in.pipeInput(kv.key, kv.value));
 
-    List<Message> receivedMessages = out
+    receivedMessages = new LinkedMultiValueMap<>();
+    out
         .readRecordsToList()
-        .stream()
-        .map(record -> Message.of(record.key(), record.value()))
-        .toList();
+        .forEach(record -> receivedMessages.add(record.key(), record.value()));
+  }
+
+
+  @DisplayName("Assert the expected output messages")
+  @Test
+  public void testExpectedMessages()
+  {
+    TestData.assertExpectedMessages(receivedMessages);
+  }
+
+  @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);
+  }
 
-    TestData.assertExpectedResult(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);
   }
 }