juplo.de Git - demos/kafka/wordcount/blob - src/test/java/de/juplo/kafka/wordcount/counter/TestData.java

   1 package de.juplo.kafka.wordcount.counter;
   2
   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;
  10
  11 import java.util.stream.Stream;
  12
  13 import static org.assertj.core.api.Assertions.assertThat;
  14
  15
  16 class TestData
  17 {
  18         static final String PETER = "peter";
  19         static final String KLAUS = "klaus";
  20
  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";
  26
  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);
  32
  33         private static final KeyValue<String, TestInputWord>[] INPUT_MESSAGES = new KeyValue[]
  34         {
  35                         new KeyValue<>(
  36                                         PETER,
  37                                         TestInputWord.of(PETER, WORD_HALLO)),
  38                         new KeyValue<>(
  39                                         KLAUS,
  40                                         TestInputWord.of(KLAUS, WORD_MÜSCH)),
  41                         new KeyValue<>(
  42                                         PETER,
  43                                         TestInputWord.of(PETER, WORD_WELT)),
  44                         new KeyValue<>(
  45                                         KLAUS,
  46                                         TestInputWord.of(KLAUS, WORD_MÜSCH)),
  47                         new KeyValue<>(
  48                                         KLAUS,
  49                                         TestInputWord.of(KLAUS, WORD_S)),
  50                         new KeyValue<>(
  51                                         PETER,
  52                                         TestInputWord.of(PETER, WORD_BOÄH)),
  53                         new KeyValue<>(
  54                                         PETER,
  55                                         TestInputWord.of(PETER, WORD_WELT)),
  56                         new KeyValue<>(
  57                                         PETER,
  58                                         TestInputWord.of(PETER, WORD_BOÄH)),
  59                         new KeyValue<>(
  60                                         KLAUS,
  61                                         TestInputWord.of(KLAUS, WORD_S)),
  62                         new KeyValue<>(
  63                                         PETER,
  64                                         TestInputWord.of(PETER, WORD_BOÄH)),
  65                         new KeyValue<>(
  66                                         KLAUS,
  67                                         TestInputWord.of(KLAUS, WORD_S)),
  68         };
  69
  70         static Stream<KeyValue<String, TestInputWord>> getInputMessages()
  71         {
  72                 return Stream.of(TestData.INPUT_MESSAGES);
  73         }
  74
  75         static void assertExpectedMessages(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
  76         {
  77                 expectedMessages().forEach(
  78                                 (word, counter) ->
  79                                                 assertThat(receivedMessages.get(word))
  80                                                                 .containsExactlyElementsOf(counter));
  81         }
  82
  83         static void assertExpectedNumberOfMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
  84         {
  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));
  90         }
  91
  92         private static int countMessagesForWord(TestOutputWord word, MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForUsers)
  93         {
  94                 return messagesForUsers.get(word).size();
  95         }
  96
  97         static void assertExpectedState(ReadOnlyKeyValueStore<Word, Long> store)
  98         {
  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)));
 104         }
 105
 106         private static Word wordOf(TestOutputWord testOutputWord)
 107         {
 108                 Word word = new Word();
 109
 110                 word.setUser(testOutputWord.getUser());
 111                 word.setWord(testOutputWord.getWord());
 112
 113                 return word;
 114         }
 115
 116         static void assertExpectedLastMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
 117         {
 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));
 123         }
 124
 125         private static void assertWordCountEqualsWordCountFromLastMessage(
 126                         TestOutputWord word,
 127                         Long counter)
 128         {
 129                 TestOutputWordCounter testOutputWordCounter = TestOutputWordCounter.of(
 130                                 word.getUser(),
 131                                 word.getWord(),
 132                                 counter);
 133                 assertWordCountEqualsWordCountFromLastMessage(word, testOutputWordCounter);
 134         }
 135
 136         private static void assertWordCountEqualsWordCountFromLastMessage(
 137                         TestOutputWord word,
 138                         TestOutputWordCounter counter)
 139         {
 140                 assertThat(counter).isEqualTo(getLastMessageFor(word));
 141         }
 142
 143         private static TestOutputWordCounter getLastMessageFor(TestOutputWord word)
 144         {
 145                 return getLastMessageFor(word, expectedMessages());
 146         }
 147
 148         private static TestOutputWordCounter getLastMessageFor(
 149                         TestOutputWord user,
 150                         MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForWord)
 151         {
 152                 return messagesForWord
 153                                 .get(user)
 154                                 .stream()
 155                                 .reduce(null, (left, right) -> right);
 156         }
 157
 158         private static final KeyValue<TestOutputWord, TestOutputWordCounter>[] EXPECTED_MESSAGES = new KeyValue[]
 159         {
 160                         KeyValue.pair(
 161                                         PETER_HALLO,
 162                                         TestOutputWordCounter.of(PETER, WORD_HALLO,1)),
 163                         KeyValue.pair(
 164                                         KLAUS_MÜSCH,
 165                                         TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,1)),
 166                         KeyValue.pair(
 167                                         PETER_WELT,
 168                                         TestOutputWordCounter.of(PETER, WORD_WELT,1)),
 169                         KeyValue.pair(
 170                                         KLAUS_MÜSCH,
 171                                         TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,2)),
 172                         KeyValue.pair(
 173                                         KLAUS_S,
 174                                         TestOutputWordCounter.of(KLAUS, WORD_S,1)),
 175                         KeyValue.pair(
 176                                         PETER_BOÄH,
 177                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,1)),
 178                         KeyValue.pair(
 179                                         PETER_WELT,
 180                                         TestOutputWordCounter.of(PETER, WORD_WELT,2)),
 181                         KeyValue.pair(
 182                                         PETER_BOÄH,
 183                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,2)),
 184                         KeyValue.pair(
 185                                         KLAUS_S,
 186                                         TestOutputWordCounter.of(KLAUS, WORD_S,2)),
 187                         KeyValue.pair(
 188                                         PETER_BOÄH,
 189                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,3)),
 190                         KeyValue.pair(
 191                                         KLAUS_S,
 192                                         TestOutputWordCounter.of(KLAUS, WORD_S,3)),
 193         };
 194
 195         static MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages()
 196         {
 197                 MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages = new LinkedMultiValueMap<>();
 198                 Stream
 199                                 .of(EXPECTED_MESSAGES)
 200                                 .forEach(keyValue -> expectedMessages.add(keyValue.key, keyValue.value));
 201                 return expectedMessages;
 202         }
 203 }