Merge branch 'deserialization' into sumup-adder--ohne--stored-offsets

[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..a150176 100644 (file)
--- a/src/test/java/de/juplo/kafka/ApplicationTests.java
+++ b/src/test/java/de/juplo/kafka/ApplicationTests.java
@@ -1,74 +1,110 @@
 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;
+
 
+@Slf4j
 public class ApplicationTests extends GenericApplicationTests<String, String>
 {
+  @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]);
+      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)
+      boolean poisonPills,
+      boolean logicErrors,
+      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, 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);
         }
-        send(key, calculateMessage, logicErrors, 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 logicErrors,
-        Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+      Bytes key,
+      Bytes value,
+      boolean fail,
+      Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
     {
       counter++;
 
-      if (counter == 77)
+      if (fail)
       {
-        if (logicErrors)
-        {
-          value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(-1)));
-        }
+        value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(-1)));
       }
 
       messageSender.accept(new ProducerRecord<>(TOPIC, key, value));
@@ -79,5 +115,41 @@ public class ApplicationTests extends GenericApplicationTests<String, String>
     {
       return false;
     }
+
+    @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 ->
+          {
+            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);
+          });
+      }
+    }
   }
-}
+}
\ No newline at end of file