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.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;
  11
  12 import java.util.stream.Stream;
  13
  14 import static de.juplo.kafka.wordcount.counter.CounterStreamProcessor.TYPE;
  15 import static org.assertj.core.api.Assertions.assertThat;
  16
  17
  18 class TestData
  19 {
  20         static final String PETER = "peter";
  21         static final String KLAUS = "klaus";
  22
  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";
  28
  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);
  34
  35         private static final KeyValue<TestInputUser, TestInputWord>[] INPUT_MESSAGES = new KeyValue[]
  36         {
  37                         KeyValue.pair(
  38                                         TestInputUser.of(PETER),
  39                                         TestInputWord.of(PETER, WORD_HALLO)),
  40                         KeyValue.pair(
  41                                         TestInputUser.of(KLAUS),
  42                                         TestInputWord.of(KLAUS, WORD_MÜSCH)),
  43                         KeyValue.pair(
  44                                         TestInputUser.of(PETER),
  45                                         TestInputWord.of(PETER, WORD_WELT)),
  46                         KeyValue.pair(
  47                                         TestInputUser.of(KLAUS),
  48                                         TestInputWord.of(KLAUS, WORD_MÜSCH)),
  49                         KeyValue.pair(
  50                                         TestInputUser.of(KLAUS),
  51                                         TestInputWord.of(KLAUS, WORD_S)),
  52                         KeyValue.pair(
  53                                         TestInputUser.of(PETER),
  54                                         TestInputWord.of(PETER, WORD_BOÄH)),
  55                         KeyValue.pair(
  56                                         TestInputUser.of(PETER),
  57                                         TestInputWord.of(PETER, WORD_WELT)),
  58                         KeyValue.pair(
  59                                         TestInputUser.of(PETER),
  60                                         TestInputWord.of(PETER, WORD_BOÄH)),
  61                         KeyValue.pair(
  62                                         TestInputUser.of(KLAUS),
  63                                         TestInputWord.of(KLAUS, WORD_S)),
  64                         KeyValue.pair(
  65                                         TestInputUser.of(PETER),
  66                                         TestInputWord.of(PETER, WORD_BOÄH)),
  67                         KeyValue.pair(
  68                                         TestInputUser.of(KLAUS),
  69                                         TestInputWord.of(KLAUS, WORD_S)),
  70         };
  71
  72         static Stream<KeyValue<TestInputUser, TestInputWord>> getInputMessages()
  73         {
  74                 return Stream.of(TestData.INPUT_MESSAGES);
  75         }
  76
  77         static void assertExpectedMessages(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
  78         {
  79                 expectedMessages().forEach(
  80                                 (word, counter) ->
  81                                                 assertThat(receivedMessages.get(word))
  82                                                                 .containsExactlyElementsOf(counter));
  83         }
  84
  85         static void assertExpectedNumberOfMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
  86         {
  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));
  92         }
  93
  94         private static int countMessagesForWord(TestOutputWord word, MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForUsers)
  95         {
  96                 return messagesForUsers.get(word) == null
  97                                 ? 0
  98                                 : messagesForUsers.get(word).size();
  99         }
 100
 101         static void assertExpectedState(ReadOnlyKeyValueStore<Word, Long> store)
 102         {
 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)));
 108         }
 109
 110         private static Word wordOf(TestOutputWord testOutputWord)
 111         {
 112                 return Word.of(
 113                                 testOutputWord.getChannel(),
 114                                 testOutputWord.getKey());
 115         }
 116
 117         static void assertExpectedLastMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
 118         {
 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));
 124         }
 125
 126         private static void assertWordCountEqualsWordCountFromLastMessage(
 127                         TestOutputWord word,
 128                         Long counter)
 129         {
 130                 TestOutputWordCounter testOutputWordCounter = TestOutputWordCounter.of(
 131                                 word.getChannel(),
 132                                 word.getKey(),
 133                                 counter);
 134                 assertWordCountEqualsWordCountFromLastMessage(word, testOutputWordCounter);
 135         }
 136
 137         private static void assertWordCountEqualsWordCountFromLastMessage(
 138                         TestOutputWord word,
 139                         TestOutputWordCounter counter)
 140         {
 141                 assertThat(counter).isEqualTo(getLastMessageFor(word));
 142         }
 143
 144         private static TestOutputWordCounter getLastMessageFor(TestOutputWord word)
 145         {
 146                 return getLastMessageFor(word, expectedMessages());
 147         }
 148
 149         private static TestOutputWordCounter getLastMessageFor(
 150                         TestOutputWord user,
 151                         MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForWord)
 152         {
 153                 return messagesForWord
 154                                 .get(user)
 155                                 .stream()
 156                                 .reduce(null, (left, right) -> right);
 157         }
 158
 159         private static final KeyValue<TestOutputWord, TestOutputWordCounter>[] EXPECTED_MESSAGES = new KeyValue[]
 160         {
 161                         KeyValue.pair(
 162                                         PETER_HALLO,
 163                                         TestOutputWordCounter.of(PETER, WORD_HALLO,1)),
 164                         KeyValue.pair(
 165                                         KLAUS_MÜSCH,
 166                                         TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,1)),
 167                         KeyValue.pair(
 168                                         PETER_WELT,
 169                                         TestOutputWordCounter.of(PETER, WORD_WELT,1)),
 170                         KeyValue.pair(
 171                                         KLAUS_MÜSCH,
 172                                         TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,2)),
 173                         KeyValue.pair(
 174                                         KLAUS_S,
 175                                         TestOutputWordCounter.of(KLAUS, WORD_S,1)),
 176                         KeyValue.pair(
 177                                         PETER_BOÄH,
 178                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,1)),
 179                         KeyValue.pair(
 180                                         PETER_WELT,
 181                                         TestOutputWordCounter.of(PETER, WORD_WELT,2)),
 182                         KeyValue.pair(
 183                                         PETER_BOÄH,
 184                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,2)),
 185                         KeyValue.pair(
 186                                         KLAUS_S,
 187                                         TestOutputWordCounter.of(KLAUS, WORD_S,2)),
 188                         KeyValue.pair(
 189                                         PETER_BOÄH,
 190                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,3)),
 191                         KeyValue.pair(
 192                                         KLAUS_S,
 193                                         TestOutputWordCounter.of(KLAUS, WORD_S,3)),
 194         };
 195
 196         static MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages()
 197         {
 198                 MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages = new LinkedMultiValueMap<>();
 199                 Stream
 200                                 .of(EXPECTED_MESSAGES)
 201                                 .forEach(keyValue -> expectedMessages.add(keyValue.key, keyValue.value));
 202                 return expectedMessages;
 203         }
 204 }