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.function.Consumer;
  12 import java.util.stream.Stream;
  13
  14 import static org.assertj.core.api.Assertions.assertThat;
  15
  16
  17 class TestData
  18 {
  19         static final String PETER = "peter";
  20         static final String KLAUS = "klaus";
  21
  22         static final String WORD_HALLO = "Hallo";
  23         static final String WORD_MÜSCH = "Müsch";
  24         static final String WORD_WELT = "Welt";
  25         static final String WORD_S = "s";
  26         static final String WORD_BOÄH = "Boäh";
  27
  28         static final TestOutputWord PETER_HALLO = TestOutputWord.of(PETER, WORD_HALLO);
  29         static final TestOutputWord PETER_WELT = TestOutputWord.of(PETER, WORD_WELT);
  30         static final TestOutputWord PETER_BOÄH = TestOutputWord.of(PETER, WORD_BOÄH);
  31         static final TestOutputWord KLAUS_MÜSCH = TestOutputWord.of(KLAUS, WORD_MÜSCH);
  32         static final TestOutputWord KLAUS_S = TestOutputWord.of(KLAUS, WORD_S);
  33
  34         private static final KeyValue<String, TestInputWord>[] INPUT_MESSAGES = new KeyValue[]
  35         {
  36                         new KeyValue<>(
  37                                         PETER,
  38                                         TestInputWord.of(PETER, WORD_HALLO)),
  39                         new KeyValue<>(
  40                                         KLAUS,
  41                                         TestInputWord.of(KLAUS, WORD_MÜSCH)),
  42                         new KeyValue<>(
  43                                         PETER,
  44                                         TestInputWord.of(PETER, WORD_WELT)),
  45                         new KeyValue<>(
  46                                         KLAUS,
  47                                         TestInputWord.of(KLAUS, WORD_MÜSCH)),
  48                         new KeyValue<>(
  49                                         KLAUS,
  50                                         TestInputWord.of(KLAUS, WORD_S)),
  51                         new KeyValue<>(
  52                                         PETER,
  53                                         TestInputWord.of(PETER, WORD_BOÄH)),
  54                         new KeyValue<>(
  55                                         PETER,
  56                                         TestInputWord.of(PETER, WORD_WELT)),
  57                         new KeyValue<>(
  58                                         PETER,
  59                                         TestInputWord.of(PETER, WORD_BOÄH)),
  60                         new KeyValue<>(
  61                                         KLAUS,
  62                                         TestInputWord.of(KLAUS, WORD_S)),
  63                         new KeyValue<>(
  64                                         PETER,
  65                                         TestInputWord.of(PETER, WORD_BOÄH)),
  66                         new KeyValue<>(
  67                                         KLAUS,
  68                                         TestInputWord.of(KLAUS, WORD_S)),
  69         };
  70
  71         static Stream<KeyValue<String, TestInputWord>> getInputMessages()
  72         {
  73                 return Stream.of(TestData.INPUT_MESSAGES);
  74         }
  75
  76         static Consumer<MultiValueMap<TestOutputWord, TestOutputWordCounter>> expectedMessagesAssertion()
  77         {
  78                 return receivedMessages -> assertExpectedMessages(receivedMessages);
  79         }
  80
  81         static void assertExpectedMessages(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
  82         {
  83                 expectedMessages().forEach(
  84                                 (word, counter) ->
  85                                                 assertThat(receivedMessages.get(word))
  86                                                                 .containsExactlyElementsOf(counter));
  87         }
  88
  89         static Consumer<MultiValueMap<TestOutputWord, TestOutputWordCounter>> expectedNumberOfMessagesForWordAssertion()
  90         {
  91                 return receivedMessages -> assertExpectedNumberOfMessagesForWord(receivedMessages);
  92         }
  93
  94         static void assertExpectedNumberOfMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
  95         {
  96                 assertThat(countMessagesForWord(PETER_HALLO, receivedMessages));
  97                 assertThat(countMessagesForWord(PETER_WELT, receivedMessages));
  98                 assertThat(countMessagesForWord(PETER_BOÄH, receivedMessages));
  99                 assertThat(countMessagesForWord(KLAUS_MÜSCH, receivedMessages));
 100                 assertThat(countMessagesForWord(KLAUS_S, receivedMessages));
 101         }
 102
 103         private static int countMessagesForWord(TestOutputWord word, MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForUsers)
 104         {
 105                 return messagesForUsers.get(word).size();
 106         }
 107
 108         static Consumer<MultiValueMap<TestOutputWord, TestOutputWordCounter>> expectedLastMessagesForWordAssertion()
 109         {
 110                 return receivedMessages -> assertExpectedLastMessagesForWord(receivedMessages);
 111         }
 112
 113         static void assertExpectedState(ReadOnlyKeyValueStore<Word, Long> store)
 114         {
 115                 assertWordCountEqualsWordCountFromLastMessage(PETER_HALLO, store.get(wordOf(PETER_HALLO)));
 116                 assertWordCountEqualsWordCountFromLastMessage(PETER_WELT, store.get(wordOf(PETER_WELT)));
 117                 assertWordCountEqualsWordCountFromLastMessage(PETER_BOÄH, store.get(wordOf(PETER_BOÄH)));
 118                 assertWordCountEqualsWordCountFromLastMessage(KLAUS_MÜSCH, store.get(wordOf(KLAUS_MÜSCH)));
 119                 assertWordCountEqualsWordCountFromLastMessage(KLAUS_S, store.get(wordOf(KLAUS_S)));
 120         }
 121
 122         private static Word wordOf(TestOutputWord testOutputWord)
 123         {
 124                 Word word = new Word();
 125
 126                 word.setUser(testOutputWord.getUser());
 127                 word.setWord(testOutputWord.getWord());
 128
 129                 return word;
 130         }
 131
 132         static void assertExpectedLastMessagesForWord(MultiValueMap<TestOutputWord, TestOutputWordCounter> receivedMessages)
 133         {
 134                 assertWordCountEqualsWordCountFromLastMessage(PETER_HALLO, getLastMessageFor(PETER_HALLO, receivedMessages));
 135                 assertWordCountEqualsWordCountFromLastMessage(PETER_WELT, getLastMessageFor(PETER_WELT, receivedMessages));
 136                 assertWordCountEqualsWordCountFromLastMessage(PETER_BOÄH, getLastMessageFor(PETER_BOÄH, receivedMessages));
 137                 assertWordCountEqualsWordCountFromLastMessage(KLAUS_MÜSCH, getLastMessageFor(KLAUS_MÜSCH, receivedMessages));
 138                 assertWordCountEqualsWordCountFromLastMessage(KLAUS_S, getLastMessageFor(KLAUS_S, receivedMessages));
 139         }
 140
 141         private static void assertWordCountEqualsWordCountFromLastMessage(
 142                         TestOutputWord word,
 143                         Long counter)
 144         {
 145                 TestOutputWordCounter testOutputWordCounter = TestOutputWordCounter.of(
 146                                 word.getUser(),
 147                                 word.getWord(),
 148                                 counter);
 149                 assertWordCountEqualsWordCountFromLastMessage(word, testOutputWordCounter);
 150         }
 151
 152         private static void assertWordCountEqualsWordCountFromLastMessage(
 153                         TestOutputWord word,
 154                         TestOutputWordCounter counter)
 155         {
 156                 assertThat(counter).isEqualTo(getLastMessageFor(word));
 157         }
 158
 159         private static TestOutputWordCounter getLastMessageFor(TestOutputWord word)
 160         {
 161                 return getLastMessageFor(word, expectedMessages());
 162         }
 163
 164         private static TestOutputWordCounter getLastMessageFor(
 165                         TestOutputWord user,
 166                         MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForWord)
 167         {
 168                 return messagesForWord
 169                                 .get(user)
 170                                 .stream()
 171                                 .reduce(null, (left, right) -> right);
 172         }
 173
 174         private static final KeyValue<TestOutputWord, TestOutputWordCounter>[] EXPECTED_MESSAGES = new KeyValue[]
 175         {
 176                         KeyValue.pair(
 177                                         PETER_HALLO,
 178                                         TestOutputWordCounter.of(PETER, WORD_HALLO,1)),
 179                         KeyValue.pair(
 180                                         KLAUS_MÜSCH,
 181                                         TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,1)),
 182                         KeyValue.pair(
 183                                         PETER_WELT,
 184                                         TestOutputWordCounter.of(PETER, WORD_WELT,1)),
 185                         KeyValue.pair(
 186                                         KLAUS_MÜSCH,
 187                                         TestOutputWordCounter.of(KLAUS, WORD_MÜSCH,2)),
 188                         KeyValue.pair(
 189                                         KLAUS_S,
 190                                         TestOutputWordCounter.of(KLAUS, WORD_S,1)),
 191                         KeyValue.pair(
 192                                         PETER_BOÄH,
 193                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,1)),
 194                         KeyValue.pair(
 195                                         PETER_WELT,
 196                                         TestOutputWordCounter.of(PETER, WORD_WELT,2)),
 197                         KeyValue.pair(
 198                                         PETER_BOÄH,
 199                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,2)),
 200                         KeyValue.pair(
 201                                         KLAUS_S,
 202                                         TestOutputWordCounter.of(KLAUS, WORD_S,2)),
 203                         KeyValue.pair(
 204                                         PETER_BOÄH,
 205                                         TestOutputWordCounter.of(PETER, WORD_BOÄH,3)),
 206                         KeyValue.pair(
 207                                         KLAUS_S,
 208                                         TestOutputWordCounter.of(KLAUS, WORD_S,3)),
 209         };
 210
 211         static MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages()
 212         {
 213                 MultiValueMap<TestOutputWord, TestOutputWordCounter> expectedMessages = new LinkedMultiValueMap<>();
 214                 Stream
 215                                 .of(EXPECTED_MESSAGES)
 216                                 .forEach(keyValue -> expectedMessages.add(keyValue.key, keyValue.value));
 217                 return expectedMessages;
 218         }
 219 }