Namen der Test-Klassen korrigiert

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

diff --git a/src/test/java/de/juplo/kafka/ApplicationTests.java b/src/test/java/de/juplo/kafka/ApplicationTests.java
new file mode 100644 (file)
index 0000000..51d579e
--- /dev/null
+++ b/src/test/java/de/juplo/kafka/ApplicationTests.java
@@ -0,0 +1,84 @@
+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 = ApplicationTests.Configuration.class)
+public class ApplicationTests extends GenericApplicationTests<String, Long>
+{
+  public ApplicationTests()
+  {
+    super(
+        new RecordGenerator()
+        {
+          final StringSerializer stringSerializer = new StringSerializer();
+          final LongSerializer longSerializer = new LongSerializer();
+
+
+          @Override
+          public void generate(
+              int numberOfMessagesToGenerate,
+              Set<Integer> poisonPills,
+              Set<Integer> logicErrors,
+              Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+          {
+            int i = 0;
+
+            for (int partition = 0; partition < 10; partition++)
+            {
+              for (int key = 0; key < 10; key++)
+              {
+                if (++i > numberOfMessagesToGenerate)
+                  return;
+
+                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<Bytes, Bytes> record =
+                    new ProducerRecord<>(
+                        TOPIC,
+                        partition,
+                        new Bytes(stringSerializer.serialize(TOPIC,Integer.toString(partition*10+key%2))),
+                        value);
+
+                messageSender.accept(record);
+              }
+            }
+          }
+        });
+  }
+
+
+  @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)!");
+      };
+    }
+  }
+}