1 package de.juplo.kafka.wordcount.counter;
3 import de.juplo.kafka.wordcount.splitter.TestInputWord;
4 import de.juplo.kafka.wordcount.top10.TestOutputWord;
5 import de.juplo.kafka.wordcount.top10.TestOutputWordCounter;
6 import org.apache.kafka.streams.KeyValue;
7 import org.apache.kafka.streams.state.ReadOnlyKeyValueStore;
8 import org.springframework.util.LinkedMultiValueMap;
9 import org.springframework.util.MultiValueMap;
11 import java.util.stream.Stream;
13 import static org.assertj.core.api.Assertions.assertThat;
18 static final String PETER = "peter";
19 static final String KLAUS = "klaus";
21 static final String WORD_HALLO = "Hallo";
22 static final String WORD_MÜSCH = "Müsch";
23 static final String WORD_WELT = "Welt";
24 static final String WORD_S = "s";
25 static final String WORD_BOÄH = "Boäh";
27 static final TestOutputWord PETER_HALLO = TestOutputWord.of(PETER, WORD_HALLO);
28 static final TestOutputWord PETER_WELT = TestOutputWord.of(PETER, WORD_WELT);
29 static final TestOutputWord PETER_BOÄH = TestOutputWord.of(PETER, WORD_BOÄH);
30 static final TestOutputWord KLAUS_MÜSCH = TestOutputWord.of(KLAUS, WORD_MÜSCH);
31 static final TestOutputWord KLAUS_S = TestOutputWord.of(KLAUS, WORD_S);
33 private static final KeyValue<String, TestInputWord>[] INPUT_MESSAGES = new KeyValue[]
37 TestInputWord.of(PETER, WORD_HALLO)),
40 TestInputWord.of(KLAUS, WORD_MÜSCH)),
43 TestInputWord.of(PETER, WORD_WELT)),
46 TestInputWord.of(KLAUS, WORD_MÜSCH)),
49 TestInputWord.of(KLAUS, WORD_S)),
52 TestInputWord.of(PETER, WORD_BOÄH)),
55 TestInputWord.of(PETER, WORD_WELT)),
58 TestInputWord.of(PETER, WORD_BOÄH)),
61 TestInputWord.of(KLAUS, WORD_S)),
64 TestInputWord.of(PETER, WORD_BOÄH)),
67 TestInputWord.of(KLAUS, WORD_S)),
70 static Stream<KeyValue<String, TestInputWord>> getInputMessages()
72 return Stream.of(TestData.INPUT_MESSAGES);
75 static void assertExpectedMessages(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
77 expectedMessages().forEach(
79 assertThat(receivedMessages.get(word))
80 .containsExactlyElementsOf(counter));
83 static void assertExpectedNumberOfMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
85 assertThat(countMessagesForWord(PETER_HALLO, receivedMessages));
86 assertThat(countMessagesForWord(PETER_WELT, receivedMessages));
87 assertThat(countMessagesForWord(PETER_BOÄH, receivedMessages));
88 assertThat(countMessagesForWord(KLAUS_MÜSCH, receivedMessages));
89 assertThat(countMessagesForWord(KLAUS_S, receivedMessages));
92 private static int countMessagesForWord(TestOutputWord word, MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForUsers)
94 return messagesForUsers.get(word).size();
97 static void assertExpectedState(ReadOnlyKeyValueStore<Word, Long> store)
99 assertWordCountEqualsWordCountFromLastMessage(PETER_HALLO, store.get(wordOf(PETER_HALLO)));
100 assertWordCountEqualsWordCountFromLastMessage(PETER_WELT, store.get(wordOf(PETER_WELT)));
101 assertWordCountEqualsWordCountFromLastMessage(PETER_BOÄH, store.get(wordOf(PETER_BOÄH)));
102 assertWordCountEqualsWordCountFromLastMessage(KLAUS_MÜSCH, store.get(wordOf(KLAUS_MÜSCH)));
103 assertWordCountEqualsWordCountFromLastMessage(KLAUS_S, store.get(wordOf(KLAUS_S)));
106 private static Word wordOf(TestOutputWord testOutputWord)
108 Word word = new Word();
110 word.setUser(testOutputWord.getUser());
111 word.setWord(testOutputWord.getWord());
116 static void assertExpectedLastMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
118 assertWordCountEqualsWordCountFromLastMessage(PETER_HALLO, getLastMessageFor(PETER_HALLO, receivedMessages));
119 assertWordCountEqualsWordCountFromLastMessage(PETER_WELT, getLastMessageFor(PETER_WELT, receivedMessages));
120 assertWordCountEqualsWordCountFromLastMessage(PETER_BOÄH, getLastMessageFor(PETER_BOÄH, receivedMessages));
121 assertWordCountEqualsWordCountFromLastMessage(KLAUS_MÜSCH, getLastMessageFor(KLAUS_MÜSCH, receivedMessages));
122 assertWordCountEqualsWordCountFromLastMessage(KLAUS_S, getLastMessageFor(KLAUS_S, receivedMessages));
125 private static void assertWordCountEqualsWordCountFromLastMessage(
129 TestOutputWordCounter testOutputWordCounter = TestOutputWordCounter.of(
133 assertWordCountEqualsWordCountFromLastMessage(word, testOutputWordCounter);
136 private static void assertWordCountEqualsWordCountFromLastMessage(
138 TestOutputWordCounter counter)
140 assertThat(counter).isEqualTo(getLastMessageFor(word));
143 private static TestOutputWordCounter getLastMessageFor(TestOutputWord word)
145 return getLastMessageFor(word, expectedMessages());
148 private static TestOutputWordCounter getLastMessageFor(
150 MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForWord)
152 return messagesForWord
155 .reduce(null, (left, right) -> right);
158 private static final KeyValue<TestOutputWord, TestOutputWordCounter>[] EXPECTED_MESSAGES = new KeyValue[]
162 TestOutputWordCounter.of(PETER, WORD_HALLO,1)),
165 TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,1)),
168 TestOutputWordCounter.of(PETER, WORD_WELT,1)),
171 TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,2)),
174 TestOutputWordCounter.of(KLAUS, WORD_S,1)),
177 TestOutputWordCounter.of(PETER, WORD_BOÄH,1)),
180 TestOutputWordCounter.of(PETER, WORD_WELT,2)),
183 TestOutputWordCounter.of(PETER, WORD_BOÄH,2)),
186 TestOutputWordCounter.of(KLAUS, WORD_S,2)),
189 TestOutputWordCounter.of(PETER, WORD_BOÄH,3)),
192 TestOutputWordCounter.of(KLAUS, WORD_S,3)),
195 static MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages()
197 MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages = new LinkedMultiValueMap<>();
199 .of(EXPECTED_MESSAGES)
200 .forEach(keyValue -> expectedMessages.add(keyValue.key, keyValue.value));
201 return expectedMessages;