Tests aus gemerged springified-consumer--serialization -> deserialization

[demos/kafka/training] / src / test / java / de / juplo / kafka / ApplicationTest.java

diff --git a/src/test/java/de/juplo/kafka/ApplicationTest.java b/src/test/java/de/juplo/kafka/ApplicationTest.java
index d3ff3b1..ed93a21 100644 (file)
--- a/src/test/java/de/juplo/kafka/ApplicationTest.java
+++ b/src/test/java/de/juplo/kafka/ApplicationTest.java
@@ -1,21 +1,26 @@
 package de.juplo.kafka;
 
+import org.apache.kafka.clients.consumer.ConsumerRecord;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.common.serialization.LongSerializer;
 import org.apache.kafka.common.serialization.StringSerializer;
 import org.apache.kafka.common.utils.Bytes;
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Primary;
+import org.springframework.test.context.ContextConfiguration;
 
 import java.util.Set;
 import java.util.function.Consumer;
 
 
+@ContextConfiguration(classes = ApplicationTest.Configuration.class)
 public class ApplicationTest extends GenericApplicationTest<String, Long>
 {
   public ApplicationTest()
   {
     super(
-        new StringSerializer(),
-        new RecordGenerator<> ()
+        new RecordGenerator()
         {
           final StringSerializer stringSerializer = new StringSerializer();
           final LongSerializer longSerializer = new LongSerializer();
@@ -25,7 +30,8 @@ public class ApplicationTest extends GenericApplicationTest<String, Long>
           public void generate(
               int numberOfMessagesToGenerate,
               Set<Integer> poisonPills,
-              Consumer<ProducerRecord<String, Bytes>> messageSender)
+              Set<Integer> logicErrors,
+              Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
           {
             int i = 0;
 
@@ -36,16 +42,21 @@ public class ApplicationTest extends GenericApplicationTest<String, Long>
                 if (++i > numberOfMessagesToGenerate)
                   return;
 
-                Bytes value =
-                    poisonPills.contains(i)
-                        ? new Bytes(stringSerializer.serialize(TOPIC, "BOOM!"))
-                        : new Bytes(longSerializer.serialize(TOPIC, (long)i));
+                Bytes value = new Bytes(longSerializer.serialize(TOPIC, (long)i));
+                if (logicErrors.contains(i))
+                {
+                  value = new Bytes(longSerializer.serialize(TOPIC, Long.MIN_VALUE));
+                }
+                if (poisonPills.contains(i))
+                {
+                  value = new Bytes(stringSerializer.serialize(TOPIC, "BOOM (Poison-Pill)!"));
+                }
 
-                ProducerRecord<String, Bytes> record =
+                ProducerRecord<Bytes, Bytes> record =
                     new ProducerRecord<>(
                         TOPIC,
                         partition,
-                        Integer.toString(partition*10+key%2),
+                        new Bytes(stringSerializer.serialize(TOPIC,Integer.toString(partition*10+key%2))),
                         value);
 
                 messageSender.accept(record);
@@ -54,4 +65,20 @@ public class ApplicationTest extends GenericApplicationTest<String, Long>
           }
         });
   }
+
+
+  @TestConfiguration
+  public static class Configuration
+  {
+    @Primary
+    @Bean
+    public Consumer<ConsumerRecord<String, Long>> consumer()
+    {
+      return (record) ->
+      {
+        if (record.value() == Long.MIN_VALUE)
+          throw new RuntimeException("BOOM (Logic-Error)!");
+      };
+    }
+  }
 }