counter: 1.2.15 - `TestData` only holds and asserts the test-data

[demos/kafka/wordcount] / src / test / java / de / juplo / kafka / wordcount / counter / CounterStreamProcessorTopologyTest.java

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 2c8bd1e..8e09d0c 100644 (file)
--- a/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java
+++ b/src/test/java/de/juplo/kafka/wordcount/counter/CounterStreamProcessorTopologyTest.java
@@ -1,56 +1,102 @@
 package de.juplo.kafka.wordcount.counter;
 
-import org.apache.kafka.common.serialization.StringDeserializer;
-import org.apache.kafka.common.serialization.StringSerializer;
+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.Stores;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 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.Stream;
 
+import static de.juplo.kafka.wordcount.counter.TestData.convertToMap;
+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;
 
+
+@Slf4j
 public class CounterStreamProcessorTopologyTest
 {
   public final static String IN = "TEST-IN";
   public final static String OUT = "TEST-OUT";
 
-  @Test
-  public void test()
+
+  TopologyTestDriver testDriver;
+  TestInputTopic<String, Word> in;
+  TestOutputTopic<Word, WordCounter> out;
+
+
+  @BeforeEach
+  public void setUpTestDriver()
   {
     Topology topology = CounterStreamProcessor.buildTopology(
         IN,
         OUT,
         Stores.inMemoryKeyValueStore("TOPOLOGY-TEST"));
 
-    CounterApplicationConfiguriation config =
+    CounterApplicationConfiguriation applicationConfiguriation =
         new CounterApplicationConfiguriation();
-    Properties properties =
-        config.propertyMap(new CounterApplicationProperties());
+    Properties streamProcessorProperties =
+        applicationConfiguriation.streamProcessorProperties(new CounterApplicationProperties());
+    Map<String, Object> propertyMap = convertToMap(streamProcessorProperties);
 
-    TopologyTestDriver testDriver = new TopologyTestDriver(topology, properties);
+    JsonSerde<?> keySerde = new JsonSerde<>();
+    keySerde.configure(propertyMap, true);
+    JsonSerde<?> valueSerde = new JsonSerde<>();
+    valueSerde.configure(propertyMap, false);
 
-    TestInputTopic<String, String> in = testDriver.createInputTopic(
+    testDriver = new TopologyTestDriver(topology, streamProcessorProperties);
+
+    in = testDriver.createInputTopic(
         IN,
-        new StringSerializer(),
-        new StringSerializer());
+        (JsonSerializer<String>)keySerde.serializer(),
+        (JsonSerializer<Word>)valueSerde.serializer());
 
-    TestOutputTopic<String, String> out = testDriver.createOutputTopic(
+    out = testDriver.createOutputTopic(
         OUT,
-        new StringDeserializer(),
-        new StringDeserializer());
+        (JsonDeserializer<Word>)keySerde.deserializer(),
+        (JsonDeserializer<WordCounter>)valueSerde.deserializer());
+  }
 
-    TestData.writeInputData((key, value) -> in.pipeInput(key, value));
 
-    List<Message> receivedMessages = out
+  @Test
+  public void test()
+  {
+    Stream
+        .of(TestData.INPUT_MESSAGES)
+        .forEach(word -> in.pipeInput(word.getUser(), word));
+
+    MultiValueMap<Word, WordCounter> receivedMessages = new LinkedMultiValueMap<>();
+    out
         .readRecordsToList()
-        .stream()
-        .map(record -> Message.of(record.key(), record.value()))
-        .toList();
+        .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());
+        });
 
-    TestData.assertExpectedResult(receivedMessages);
+    TestData.assertExpectedMessages(receivedMessages);
+  }
+
+  @AfterEach
+  public void tearDown()
+  {
+    testDriver.close();
   }
 }