Code an die Version aus 'sumup-adder--springified' angepasst

[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
index 1a336d6..bd9f449 100644 (file)
--- a/src/test/java/de/juplo/kafka/ApplicationTests.java
+++ b/src/test/java/de/juplo/kafka/ApplicationTests.java
@@ -1,34 +1,50 @@
 package de.juplo.kafka;
 
+import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.common.serialization.StringSerializer;
 import org.apache.kafka.common.utils.Bytes;
+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;
 
-public class ApplicationTests extends GenericApplicationTests<String, String>
+
+@Slf4j
+public class ApplicationTests extends GenericApplicationTests<String, Message>
 {
+  @Autowired
+  StateRepository stateRepository;
+
+
   public ApplicationTests()
   {
     super(new ApplicationTestRecrodGenerator());
+    ((ApplicationTestRecrodGenerator)recordGenerator).tests = this;
   }
 
 
   static class ApplicationTestRecrodGenerator implements RecordGenerator
   {
-    final int[] numbers = {1, 7, 3, 2, 33, 6, 11};
+    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"));
+    final Bytes calculateMessage = new Bytes(stringSerializer.serialize(TOPIC, "{}"));
 
     int counter = 0;
 
+    Map<String, List<AdderResult>> state;
+
     @Override
     public int generate(
         boolean poisonPills,
@@ -36,48 +52,121 @@ public class ApplicationTests extends GenericApplicationTests<String, String>
         Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
     {
       counter = 0;
-
-      for (int i = 0; i < 33; i++)
+      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++)
       {
-        String seeräuber = dieWilden13[i % 13];
-        int number = numbers[i % 7];
-
-        Bytes key = new Bytes(stringSerializer.serialize(TOPIC, seeräuber));
-
-        for (int message = 1; message <= number; message++)
+        for (int i = 0; i<13; i++)
         {
-          Bytes value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(message)));
-          send(key, value, logicErrors, messageSender);
+          String seeräuber = dieWilden13[i];
+          Bytes key = new Bytes(stringSerializer.serialize(TOPIC, seeräuber));
+
+          if (message[i] > number[i])
+          {
+            send(
+              key,
+              calculateMessage,
+              Message.Type.CALC,
+              poisonPill(poisonPills, pass, counter),
+              logicError(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]);
+          }
+
+          send(
+            key,
+            new Bytes(stringSerializer.serialize(TOPIC, "{\"next\":" + message[i]++ + "}")),
+            Message.Type.ADD,
+            poisonPill(poisonPills, pass, counter),
+            logicError(logicErrors, pass, counter),
+            messageSender);
         }
-        send(key, calculateMessage, logicErrors, messageSender);
       }
 
       return counter;
     }
 
+    boolean poisonPill (boolean poisonPills, int pass, int counter)
+    {
+      return poisonPills && pass > 300 && counter%99 == 0;
+    }
+
+    boolean logicError(boolean logicErrors, int pass, int counter)
+    {
+      return logicErrors && pass > 300 && counter%77 == 0;
+    }
+
     void send(
         Bytes key,
         Bytes value,
-        boolean logicErrors,
+        Message.Type type,
+        boolean poisonPill,
+        boolean logicError,
         Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
     {
       counter++;
 
-      if (counter == 77)
+      if (logicError)
       {
-        if (logicErrors)
-        {
-          value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(-1)));
-        }
+        value = new Bytes(stringSerializer.serialize(TOPIC, "{\"next\":-1}"));
+      }
+      if (poisonPill)
+      {
+        value = new Bytes("BOOM!".getBytes());
       }
 
-      messageSender.accept(new ProducerRecord<>(TOPIC, key, value));
+      ProducerRecord<Bytes, Bytes> record = new ProducerRecord<>(TOPIC, key, value);
+      record.headers().add("__TypeId__", type.toString().getBytes());
+      messageSender.accept(record);
     }
 
     @Override
-    public boolean canGeneratePoisonPill()
+    public void assertBusinessLogic()
     {
-      return false;
+      for (int i=0; i<PARTITIONS; i++)
+      {
+        StateDocument stateDocument =
+            tests.stateRepository.findById(Integer.toString(i)).get();
+
+        stateDocument
+            .results
+            .entrySet()
+            .stream()
+            .forEach(entry ->
+            {
+              String user = entry.getKey();
+              List<AdderResult> resultsForUser = entry.getValue();
+
+              for (int j=0; j < resultsForUser.size(); j++)
+              {
+                if (!(j < state.get(user).size()))
+                {
+                  break;
+                }
+
+                assertThat(resultsForUser.get(j))
+                    .as("Unexpected results calculation %d of user %s", j, user)
+                    .isEqualTo(state.get(user).get(j));
+              }
+
+              assertThat(state.get(user))
+                  .as("More results calculated for user %s as expected", user)
+                  .containsAll(resultsForUser);
+            });
+      }
     }
   }
 }