+++ /dev/null
-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, Message>
-{
- @Autowired
- StateRepository stateRepository;
-
-
- public ApplicationTests()
- {
- 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, "{}"));
-
- 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++)
- {
- 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);
- }
- }
-
- 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,
- Message.Type type,
- boolean poisonPill,
- boolean logicError,
- Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
- {
- counter++;
-
- if (logicError)
- {
- value = new Bytes(stringSerializer.serialize(TOPIC, "{\"next\":-1}"));
- }
- if (poisonPill)
- {
- value = new Bytes("BOOM!".getBytes());
- }
-
- ProducerRecord<Bytes, Bytes> record = new ProducerRecord<>(TOPIC, key, value);
- record.headers().add("__TypeId__", type.toString().getBytes());
- messageSender.accept(record);
- }
-
- @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);
- });
- }
- }
- }
-}