X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2FApplicationTests.java;h=a1501769255f2be2a0eb788045ec71812b7517b5;hb=595eab489c638b07072f6ec7e3c6f52000295931;hp=1781b1d04c5866e838a8a9d399f70eb568295995;hpb=ccc0bbf53e09e7154e96958957e78f94a9d11ead;p=demos%2Fkafka%2Ftraining

diff --git a/src/test/java/de/juplo/kafka/ApplicationTests.java b/src/test/java/de/juplo/kafka/ApplicationTests.java
index 1781b1d..a150176 100644
--- a/src/test/java/de/juplo/kafka/ApplicationTests.java
+++ b/src/test/java/de/juplo/kafka/ApplicationTests.java
@@ -1,83 +1,155 @@
 package de.juplo.kafka;
 
+import lombok.extern.slf4j.Slf4j;
 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.test.context.ContextConfiguration;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.util.*;
 
 import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+import static org.assertj.core.api.Assertions.assertThat;
 
 
-@ContextConfiguration(classes = ApplicationTests.Configuration.class)
-public class ApplicationTests extends GenericApplicationTests<String, Long>
+@Slf4j
+public class ApplicationTests extends GenericApplicationTests<String, String>
 {
+  @Autowired
+  StateRepository stateRepository;
+
+
   public ApplicationTests()
   {
-    super(
-        new RecordGenerator()
+    super(new ApplicationTestRecrodGenerator());
+    ((ApplicationTestRecrodGenerator) recordGenerator).tests = this;
+  }
+
+
+  static class ApplicationTestRecrodGenerator implements RecordGenerator
+  {
+    ApplicationTests tests;
+
+    final int[] numbers = {1, 77, 33, 2, 66, 666, 11};
+    final String[] dieWilden13 =
+      IntStream
+        .range(1, 14)
+        .mapToObj(i -> "seeräuber-" + i)
+        .toArray(i -> new String[i]);
+    final StringSerializer stringSerializer = new StringSerializer();
+    final Bytes calculateMessage = new Bytes(stringSerializer.serialize(TOPIC, "CALCULATE"));
+
+    int counter = 0;
+
+    Map<String, List<AdderResult>> state;
+
+    @Override
+    public int generate(
+      boolean poisonPills,
+      boolean logicErrors,
+      Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+    {
+      counter = 0;
+      state =
+        Arrays
+          .stream(dieWilden13)
+          .collect(Collectors.toMap(
+            seeräuber -> seeräuber,
+            seeräuber -> new LinkedList()));
+
+      int number[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
+      int message[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
+      int next = 0;
+
+      for (int pass = 0; pass < 333; pass++)
+      {
+        for (int i = 0; i < 13; i++)
         {
-          final StringSerializer stringSerializer = new StringSerializer();
-          final LongSerializer longSerializer = new LongSerializer();
+          String seeräuber = dieWilden13[i];
+          Bytes key = new Bytes(stringSerializer.serialize(TOPIC, seeräuber));
+
+          if (message[i] > number[i])
+          {
+            send(key, calculateMessage, fail(logicErrors, pass, counter), messageSender);
+            state.get(seeräuber).add(new AdderResult(number[i], (number[i] + 1) * number[i] / 2));
+            // Pick next number to calculate
+            number[i] = numbers[next++ % numbers.length];
+            message[i] = 1;
+            log.debug("Seeräuber {} will die Summe für {} berechnen", seeräuber, number[i]);
+          }
+
+          Bytes value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(message[i]++)));
+          send(key, value, fail(logicErrors, pass, counter), messageSender);
+        }
+      }
+
+      return counter;
+    }
 
+    boolean fail(boolean logicErrors, int pass, int counter)
+    {
+      return logicErrors && pass > 300 && counter % 77 == 0;
+    }
+
+    void send(
+      Bytes key,
+      Bytes value,
+      boolean fail,
+      Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+    {
+      counter++;
+
+      if (fail)
+      {
+        value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(-1)));
+      }
+
+      messageSender.accept(new ProducerRecord<>(TOPIC, key, value));
+    }
+
+    @Override
+    public boolean canGeneratePoisonPill()
+    {
+      return false;
+    }
 
-          @Override
-          public int generate(
-              boolean poisonPills,
-              boolean logicErrors,
-              Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+    @Override
+    public void assertBusinessLogic()
+    {
+      for (int i = 0; i < PARTITIONS; i++)
+      {
+        StateDocument stateDocument =
+          tests.stateRepository.findById(Integer.toString(i)).get();
+
+        stateDocument
+          .results
+          .entrySet()
+          .stream()
+          .forEach(entry ->
           {
-            int i = 0;
+            String user = entry.getKey();
+            List<AdderResult> resultsForUser = entry.getValue();
 
-            for (int partition = 0; partition < 10; partition++)
+            for (int j = 0; j < resultsForUser.size(); j++)
             {
-              for (int key = 0; key < 10000; key++)
+              if (!(j < state.get(user).size()))
               {
-                i++;
-
-                Bytes value = new Bytes(longSerializer.serialize(TOPIC, (long)i));
-                if (i == 99977)
-                {
-                  if (logicErrors)
-                  {
-                    value = new Bytes(longSerializer.serialize(TOPIC, Long.MIN_VALUE));
-                  }
-                  if (poisonPills)
-                  {
-                    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);
+                break;
               }
-            }
-
-            return i;
-          }
-        });
-  }
 
+              assertThat(resultsForUser.get(j))
+                .as("Unexpected results calculation %d of user %s", j, user)
+                .isEqualTo(state.get(user).get(j));
+            }
 
-  @TestConfiguration
-  public static class Configuration
-  {
-    @Bean
-    public RecordHandler<String, Long> recordHandler()
-    {
-      return (record) ->
-      {
-        if (record.value() == Long.MIN_VALUE)
-          throw new RuntimeException("BOOM (Logic-Error)!");
-      };
+            assertThat(state.get(user))
+              .as("More results calculated for user %s as expected", user)
+              .containsAll(resultsForUser);
+          });
+      }
     }
   }
-}
+}
\ No newline at end of file