1 package de.juplo.kafka.wordcount.counter;
3 import de.juplo.kafka.wordcount.splitter.TestInputUser;
4 import de.juplo.kafka.wordcount.splitter.TestInputWord;
5 import de.juplo.kafka.wordcount.top10.TestOutputWord;
6 import de.juplo.kafka.wordcount.top10.TestOutputWordCounter;
7 import org.apache.kafka.streams.KeyValue;
8 import org.apache.kafka.streams.state.ReadOnlyKeyValueStore;
9 import org.springframework.util.LinkedMultiValueMap;
10 import org.springframework.util.MultiValueMap;
12 import java.util.stream.Stream;
14 import static de.juplo.kafka.wordcount.counter.CounterStreamProcessor.TYPE;
15 import static org.assertj.core.api.Assertions.assertThat;
20 static final String PETER = "peter";
21 static final String KLAUS = "klaus";
23 static final String WORD_HALLO = "Hallo";
24 static final String WORD_MÜSCH = "Müsch";
25 static final String WORD_WELT = "Welt";
26 static final String WORD_S = "s";
27 static final String WORD_BOÄH = "Boäh";
29 static final TestOutputWord PETER_HALLO = TestOutputWord.of(TYPE, PETER, WORD_HALLO);
30 static final TestOutputWord PETER_WELT = TestOutputWord.of(TYPE, PETER, WORD_WELT);
31 static final TestOutputWord PETER_BOÄH = TestOutputWord.of(TYPE, PETER, WORD_BOÄH);
32 static final TestOutputWord KLAUS_MÜSCH = TestOutputWord.of(TYPE, KLAUS, WORD_MÜSCH);
33 static final TestOutputWord KLAUS_S = TestOutputWord.of(TYPE, KLAUS, WORD_S);
35 private static final KeyValue<TestInputUser, TestInputWord>[] INPUT_MESSAGES = new KeyValue[]
38 TestInputUser.of(PETER),
39 TestInputWord.of(PETER, WORD_HALLO)),
41 TestInputUser.of(KLAUS),
42 TestInputWord.of(KLAUS, WORD_MÜSCH)),
44 TestInputUser.of(PETER),
45 TestInputWord.of(PETER, WORD_WELT)),
47 TestInputUser.of(KLAUS),
48 TestInputWord.of(KLAUS, WORD_MÜSCH)),
50 TestInputUser.of(KLAUS),
51 TestInputWord.of(KLAUS, WORD_S)),
53 TestInputUser.of(PETER),
54 TestInputWord.of(PETER, WORD_BOÄH)),
56 TestInputUser.of(PETER),
57 TestInputWord.of(PETER, WORD_WELT)),
59 TestInputUser.of(PETER),
60 TestInputWord.of(PETER, WORD_BOÄH)),
62 TestInputUser.of(KLAUS),
63 TestInputWord.of(KLAUS, WORD_S)),
65 TestInputUser.of(PETER),
66 TestInputWord.of(PETER, WORD_BOÄH)),
68 TestInputUser.of(KLAUS),
69 TestInputWord.of(KLAUS, WORD_S)),
72 static Stream<KeyValue<TestInputUser, TestInputWord>> getInputMessages()
74 return Stream.of(TestData.INPUT_MESSAGES);
77 static void assertExpectedMessages(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
79 expectedMessages().forEach(
81 assertThat(receivedMessages.get(word))
82 .containsExactlyElementsOf(counter));
85 static void assertExpectedNumberOfMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
87 assertThat(countMessagesForWord(PETER_HALLO, receivedMessages));
88 assertThat(countMessagesForWord(PETER_WELT, receivedMessages));
89 assertThat(countMessagesForWord(PETER_BOÄH, receivedMessages));
90 assertThat(countMessagesForWord(KLAUS_MÜSCH, receivedMessages));
91 assertThat(countMessagesForWord(KLAUS_S, receivedMessages));
94 private static int countMessagesForWord(TestOutputWord word, MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForUsers)
96 return messagesForUsers.get(word) == null
98 : messagesForUsers.get(word).size();
101 static void assertExpectedState(ReadOnlyKeyValueStore<Word, Long> store)
103 assertWordCountEqualsWordCountFromLastMessage(PETER_HALLO, store.get(wordOf(PETER_HALLO)));
104 assertWordCountEqualsWordCountFromLastMessage(PETER_WELT, store.get(wordOf(PETER_WELT)));
105 assertWordCountEqualsWordCountFromLastMessage(PETER_BOÄH, store.get(wordOf(PETER_BOÄH)));
106 assertWordCountEqualsWordCountFromLastMessage(KLAUS_MÜSCH, store.get(wordOf(KLAUS_MÜSCH)));
107 assertWordCountEqualsWordCountFromLastMessage(KLAUS_S, store.get(wordOf(KLAUS_S)));
110 private static Word wordOf(TestOutputWord testOutputWord)
113 testOutputWord.getChannel(),
114 testOutputWord.getKey());
117 static void assertExpectedLastMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
119 assertWordCountEqualsWordCountFromLastMessage(PETER_HALLO, getLastMessageFor(PETER_HALLO, receivedMessages));
120 assertWordCountEqualsWordCountFromLastMessage(PETER_WELT, getLastMessageFor(PETER_WELT, receivedMessages));
121 assertWordCountEqualsWordCountFromLastMessage(PETER_BOÄH, getLastMessageFor(PETER_BOÄH, receivedMessages));
122 assertWordCountEqualsWordCountFromLastMessage(KLAUS_MÜSCH, getLastMessageFor(KLAUS_MÜSCH, receivedMessages));
123 assertWordCountEqualsWordCountFromLastMessage(KLAUS_S, getLastMessageFor(KLAUS_S, receivedMessages));
126 private static void assertWordCountEqualsWordCountFromLastMessage(
130 TestOutputWordCounter testOutputWordCounter = TestOutputWordCounter.of(
134 assertWordCountEqualsWordCountFromLastMessage(word, testOutputWordCounter);
137 private static void assertWordCountEqualsWordCountFromLastMessage(
139 TestOutputWordCounter counter)
141 assertThat(counter).isEqualTo(getLastMessageFor(word));
144 private static TestOutputWordCounter getLastMessageFor(TestOutputWord word)
146 return getLastMessageFor(word, expectedMessages());
149 private static TestOutputWordCounter getLastMessageFor(
151 MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForWord)
153 return messagesForWord
156 .reduce(null, (left, right) -> right);
159 private static final KeyValue<TestOutputWord, TestOutputWordCounter>[] EXPECTED_MESSAGES = new KeyValue[]
163 TestOutputWordCounter.of(PETER, WORD_HALLO,1)),
166 TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,1)),
169 TestOutputWordCounter.of(PETER, WORD_WELT,1)),
172 TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,2)),
175 TestOutputWordCounter.of(KLAUS, WORD_S,1)),
178 TestOutputWordCounter.of(PETER, WORD_BOÄH,1)),
181 TestOutputWordCounter.of(PETER, WORD_WELT,2)),
184 TestOutputWordCounter.of(PETER, WORD_BOÄH,2)),
187 TestOutputWordCounter.of(KLAUS, WORD_S,2)),
190 TestOutputWordCounter.of(PETER, WORD_BOÄH,3)),
193 TestOutputWordCounter.of(KLAUS, WORD_S,3)),
196 static MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages()
198 MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages = new LinkedMultiValueMap<>();
200 .of(EXPECTED_MESSAGES)
201 .forEach(keyValue -> expectedMessages.add(keyValue.key, keyValue.value));
202 return expectedMessages;