import org.apache.kafka.common.header.Header;
import org.apache.kafka.common.header.Headers;
import org.apache.kafka.streams.KeyValue;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
-import java.util.List;
import java.util.Map;
import java.util.Properties;
-import java.util.function.BiConsumer;
import java.util.stream.Collectors;
+import java.util.stream.Stream;
import static org.assertj.core.api.Assertions.assertThat;
class TestData
{
- static void writeInputData(BiConsumer<String, Word> consumer)
+ static final Word[] INPUT_MESSAGES = new Word[]
{
- consumer.accept(
- "peter",
- Word.of("peter","Hallo"));
- consumer.accept(
- "klaus",
- Word.of("klaus","Müsch"));
- consumer.accept(
- "peter",
- Word.of("peter","Welt"));
- consumer.accept(
- "klaus",
- Word.of("klaus","Müsch"));
- consumer.accept(
- "klaus",
- Word.of("klaus","s"));
- consumer.accept(
- "peter",
- Word.of("peter","Boäh"));
- consumer.accept(
- "peter",
- Word.of("peter","Welt"));
- consumer.accept(
- "peter",
- Word.of("peter","Boäh"));
- consumer.accept(
- "klaus",
- Word.of("klaus","s"));
- consumer.accept(
- "peter",
- Word.of("peter","Boäh"));
- consumer.accept(
- "klaus",
- Word.of("klaus","s"));
- }
+ Word.of("peter","Hallo"),
+ Word.of("klaus","Müsch"),
+ Word.of("peter","Welt"),
+ Word.of("klaus","Müsch"),
+ Word.of("klaus","s"),
+ Word.of("peter","Boäh"),
+ Word.of("peter","Welt"),
+ Word.of("peter","Boäh"),
+ Word.of("klaus","s"),
+ Word.of("peter","Boäh"),
+ Word.of("klaus","s"),
+ };
- static void assertExpectedResult(List<KeyValue<Word, WordCounter>> receivedMessages)
+ static void assertExpectedMessages(MultiValueMap<Word, WordCounter> receivedMessages)
{
- assertThat(receivedMessages).hasSize(11);
- assertThat(receivedMessages).containsSubsequence(
- expectedMessages[0]); // Hallo
- assertThat(receivedMessages).containsSubsequence(
- expectedMessages[1],
- expectedMessages[3]); // Müsch
- assertThat(receivedMessages).containsSubsequence(
- expectedMessages[2],
- expectedMessages[6]);
- assertThat(receivedMessages).containsSubsequence(
- expectedMessages[4],
- expectedMessages[8],
- expectedMessages[10]); // s
- assertThat(receivedMessages).containsSubsequence(
- expectedMessages[5],
- expectedMessages[7],
- expectedMessages[9]); // Boäh
+ expectedMessages().forEach(
+ (word, counter) ->
+ assertThat(receivedMessages.get(word))
+ .containsExactlyElementsOf(counter));
}
- static KeyValue<Word, WordCounter>[] expectedMessages = new KeyValue[]
+ static final KeyValue<Word, WordCounter>[] EXPECTED_MESSAGES = new KeyValue[]
{
KeyValue.pair(
Word.of("peter","Hallo"),
WordCounter.of("klaus","s",3)),
};
+ static MultiValueMap<Word, WordCounter> expectedMessages()
+ {
+ MultiValueMap<Word, WordCounter> expectedMessages = new LinkedMultiValueMap<>();
+ Stream
+ .of(EXPECTED_MESSAGES)
+ .forEach(keyValue -> expectedMessages.add(keyValue.key, keyValue.value));
+ return expectedMessages;
+ }
+
static Map<String, Object> convertToMap(Properties properties)
{
return properties