Examples with KStreamTestDriver org.apache.kafka.test.KStreamTestDriver used on opensource projects

Example 16 with KStreamTestDriver

use of org.apache.kafka.test.KStreamTestDriver in project kafka by apache.

the class KTableKTableJoinTest method testSendingOldValues.

@Test
public void testSendingOldValues() throws Exception {
    final KStreamBuilder builder = new KStreamBuilder();
    final int[] expectedKeys = new int[] { 0, 1, 2, 3 };
    final KTable<Integer, String> table1;
    final KTable<Integer, String> table2;
    final KTable<Integer, String> joined;
    final MockProcessorSupplier<Integer, String> proc;
    table1 = builder.table(intSerde, stringSerde, topic1, storeName1);
    table2 = builder.table(intSerde, stringSerde, topic2, storeName2);
    joined = table1.join(table2, MockValueJoiner.TOSTRING_JOINER);
    ((KTableImpl<?, ?, ?>) joined).enableSendingOldValues();
    proc = new MockProcessorSupplier<>();
    builder.addProcessor("proc", proc, ((KTableImpl<?, ?, ?>) joined).name);
    driver = new KStreamTestDriver(builder, stateDir);
    driver.setTime(0L);
    assertTrue(((KTableImpl<?, ?, ?>) table1).sendingOldValueEnabled());
    assertTrue(((KTableImpl<?, ?, ?>) table2).sendingOldValueEnabled());
    assertTrue(((KTableImpl<?, ?, ?>) joined).sendingOldValueEnabled());
    for (int i = 0; i < 2; i++) {
        driver.process(topic1, expectedKeys[i], "X" + expectedKeys[i]);
    }
    driver.flushState();
    proc.checkAndClearProcessResult();
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], "Y" + expectedKeys[i]);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+Y0<-null)", "1:(X1+Y1<-null)");
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "XX" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(XX0+Y0<-X0+Y0)", "1:(XX1+Y1<-X1+Y1)");
    // push all items to the other stream. this should produce four items.
    for (int expectedKey : expectedKeys) {
        driver.process(topic2, expectedKey, "YY" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(XX0+YY0<-XX0+Y0)", "1:(XX1+YY1<-XX1+Y1)", "2:(XX2+YY2<-null)", "3:(XX3+YY3<-null)");
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "X" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+YY0<-XX0+YY0)", "1:(X1+YY1<-XX1+YY1)", "2:(X2+YY2<-XX2+YY2)", "3:(X3+YY3<-XX3+YY3)");
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], null);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(null<-X0+YY0)", "1:(null<-X1+YY1)");
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "XX" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("2:(XX2+YY2<-X2+YY2)", "3:(XX3+YY3<-X3+YY3)");
}

Example 17 with KStreamTestDriver

use of org.apache.kafka.test.KStreamTestDriver in project kafka by apache.

the class KTableKTableLeftJoinTest method testSendingOldValue.

@Test
public void testSendingOldValue() throws Exception {
    final KStreamBuilder builder = new KStreamBuilder();
    final int[] expectedKeys = new int[] { 0, 1, 2, 3 };
    KTable<Integer, String> table1;
    KTable<Integer, String> table2;
    KTable<Integer, String> joined;
    MockProcessorSupplier<Integer, String> proc;
    table1 = builder.table(intSerde, stringSerde, topic1, storeName1);
    table2 = builder.table(intSerde, stringSerde, topic2, storeName2);
    joined = table1.leftJoin(table2, MockValueJoiner.TOSTRING_JOINER);
    ((KTableImpl<?, ?, ?>) joined).enableSendingOldValues();
    proc = new MockProcessorSupplier<>();
    builder.addProcessor("proc", proc, ((KTableImpl<?, ?, ?>) joined).name);
    driver = new KStreamTestDriver(builder, stateDir);
    driver.setTime(0L);
    assertTrue(((KTableImpl<?, ?, ?>) table1).sendingOldValueEnabled());
    assertTrue(((KTableImpl<?, ?, ?>) table2).sendingOldValueEnabled());
    assertTrue(((KTableImpl<?, ?, ?>) joined).sendingOldValueEnabled());
    for (int i = 0; i < 2; i++) {
        driver.process(topic1, expectedKeys[i], "X" + expectedKeys[i]);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+null<-null)", "1:(X1+null<-null)");
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], "Y" + expectedKeys[i]);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+Y0<-X0+null)", "1:(X1+Y1<-X1+null)");
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "X" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+Y0<-X0+Y0)", "1:(X1+Y1<-X1+Y1)", "2:(X2+null<-null)", "3:(X3+null<-null)");
    // push all items to the other stream. this should produce four items.
    for (int expectedKey : expectedKeys) {
        driver.process(topic2, expectedKey, "YY" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+YY0<-X0+Y0)", "1:(X1+YY1<-X1+Y1)", "2:(X2+YY2<-X2+null)", "3:(X3+YY3<-X3+null)");
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "X" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+YY0<-X0+YY0)", "1:(X1+YY1<-X1+YY1)", "2:(X2+YY2<-X2+YY2)", "3:(X3+YY3<-X3+YY3)");
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], null);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(X0+null<-X0+YY0)", "1:(X1+null<-X1+YY1)");
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "XX" + expectedKey);
    }
    driver.flushState();
    proc.checkAndClearProcessResult("0:(XX0+null<-X0+null)", "1:(XX1+null<-X1+null)", "2:(XX2+YY2<-X2+YY2)", "3:(XX3+YY3<-X3+YY3)");
}

Example 18 with KStreamTestDriver

use of org.apache.kafka.test.KStreamTestDriver in project kafka by apache.

the class KTableKTableLeftJoinTest method shouldNotThrowIllegalStateExceptionWhenMultiCacheEvictions.

/**
     * This test was written to reproduce https://issues.apache.org/jira/browse/KAFKA-4492
     * It is based on a fairly complicated join used by the developer that reported the bug.
     * Before the fix this would trigger an IllegalStateException.
     */
@Test
public void shouldNotThrowIllegalStateExceptionWhenMultiCacheEvictions() throws Exception {
    final String agg = "agg";
    final String tableOne = "tableOne";
    final String tableTwo = "tableTwo";
    final String tableThree = "tableThree";
    final String tableFour = "tableFour";
    final String tableFive = "tableFive";
    final String tableSix = "tableSix";
    final String[] inputs = { agg, tableOne, tableTwo, tableThree, tableFour, tableFive, tableSix };
    final KStreamBuilder builder = new KStreamBuilder();
    final KTable<Long, String> aggTable = builder.table(Serdes.Long(), Serdes.String(), agg, agg).groupBy(new KeyValueMapper<Long, String, KeyValue<Long, String>>() {

        @Override
        public KeyValue<Long, String> apply(final Long key, final String value) {
            return new KeyValue<>(key, value);
        }
    }, Serdes.Long(), Serdes.String()).reduce(MockReducer.STRING_ADDER, MockReducer.STRING_ADDER, "agg-store");
    final KTable<Long, String> one = builder.table(Serdes.Long(), Serdes.String(), tableOne, tableOne);
    final KTable<Long, String> two = builder.table(Serdes.Long(), Serdes.String(), tableTwo, tableTwo);
    final KTable<Long, String> three = builder.table(Serdes.Long(), Serdes.String(), tableThree, tableThree);
    final KTable<Long, String> four = builder.table(Serdes.Long(), Serdes.String(), tableFour, tableFour);
    final KTable<Long, String> five = builder.table(Serdes.Long(), Serdes.String(), tableFive, tableFive);
    final KTable<Long, String> six = builder.table(Serdes.Long(), Serdes.String(), tableSix, tableSix);
    final ValueMapper<String, String> mapper = new ValueMapper<String, String>() {

        @Override
        public String apply(final String value) {
            return value.toUpperCase(Locale.ROOT);
        }
    };
    final KTable<Long, String> seven = one.mapValues(mapper);
    final KTable<Long, String> eight = six.leftJoin(seven, MockValueJoiner.TOSTRING_JOINER);
    aggTable.leftJoin(one, MockValueJoiner.TOSTRING_JOINER).leftJoin(two, MockValueJoiner.TOSTRING_JOINER).leftJoin(three, MockValueJoiner.TOSTRING_JOINER).leftJoin(four, MockValueJoiner.TOSTRING_JOINER).leftJoin(five, MockValueJoiner.TOSTRING_JOINER).leftJoin(eight, MockValueJoiner.TOSTRING_JOINER).mapValues(mapper);
    driver = new KStreamTestDriver(builder, stateDir, 250);
    final String[] values = { "a", "AA", "BBB", "CCCC", "DD", "EEEEEEEE", "F", "GGGGGGGGGGGGGGG", "HHH", "IIIIIIIIII", "J", "KK", "LLLL", "MMMMMMMMMMMMMMMMMMMMMM", "NNNNN", "O", "P", "QQQQQ", "R", "SSSS", "T", "UU", "VVVVVVVVVVVVVVVVVVV" };
    final Random random = new Random();
    for (int i = 0; i < 1000; i++) {
        for (String input : inputs) {
            final Long key = (long) random.nextInt(1000);
            final String value = values[random.nextInt(values.length)];
            driver.process(input, key, value);
        }
    }
}

Example 19 with KStreamTestDriver

use of org.apache.kafka.test.KStreamTestDriver in project kafka by apache.

the class KStreamKTableJoinTest method testJoin.

@Test
public void testJoin() throws Exception {
    final KStreamBuilder builder = new KStreamBuilder();
    final int[] expectedKeys = new int[] { 0, 1, 2, 3 };
    final KStream<Integer, String> stream;
    final KTable<Integer, String> table;
    final MockProcessorSupplier<Integer, String> processor;
    processor = new MockProcessorSupplier<>();
    stream = builder.stream(intSerde, stringSerde, topic1);
    table = builder.table(intSerde, stringSerde, topic2, "anyStoreName");
    stream.join(table, MockValueJoiner.TOSTRING_JOINER).process(processor);
    final Collection<Set<String>> copartitionGroups = builder.copartitionGroups();
    assertEquals(1, copartitionGroups.size());
    assertEquals(new HashSet<>(Arrays.asList(topic1, topic2)), copartitionGroups.iterator().next());
    driver = new KStreamTestDriver(builder, stateDir);
    driver.setTime(0L);
    for (int i = 0; i < 2; i++) {
        driver.process(topic1, expectedKeys[i], "X" + expectedKeys[i]);
    }
    processor.checkAndClearProcessResult();
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], "Y" + expectedKeys[i]);
    }
    processor.checkAndClearProcessResult();
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "X" + expectedKey);
    }
    processor.checkAndClearProcessResult("0:X0+Y0", "1:X1+Y1");
    // push all items to the other stream. this should not produce any item
    for (int expectedKey : expectedKeys) {
        driver.process(topic2, expectedKey, "YY" + expectedKey);
    }
    processor.checkAndClearProcessResult();
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "X" + expectedKey);
    }
    processor.checkAndClearProcessResult("0:X0+YY0", "1:X1+YY1", "2:X2+YY2", "3:X3+YY3");
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], null);
    }
    processor.checkAndClearProcessResult();
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "XX" + expectedKey);
    }
    processor.checkAndClearProcessResult("2:XX2+YY2", "3:XX3+YY3");
}

Example 20 with KStreamTestDriver

use of org.apache.kafka.test.KStreamTestDriver in project kafka by apache.

the class KStreamKTableLeftJoinTest method testJoin.

@Test
public void testJoin() throws Exception {
    KStreamBuilder builder = new KStreamBuilder();
    final int[] expectedKeys = new int[] { 0, 1, 2, 3 };
    KStream<Integer, String> stream;
    KTable<Integer, String> table;
    MockProcessorSupplier<Integer, String> processor;
    processor = new MockProcessorSupplier<>();
    stream = builder.stream(intSerde, stringSerde, topic1);
    table = builder.table(intSerde, stringSerde, topic2, "anyStoreName");
    stream.leftJoin(table, MockValueJoiner.TOSTRING_JOINER).process(processor);
    Collection<Set<String>> copartitionGroups = builder.copartitionGroups();
    assertEquals(1, copartitionGroups.size());
    assertEquals(new HashSet<>(Arrays.asList(topic1, topic2)), copartitionGroups.iterator().next());
    driver = new KStreamTestDriver(builder, stateDir);
    driver.setTime(0L);
    for (int i = 0; i < 2; i++) {
        driver.process(topic1, expectedKeys[i], "X" + expectedKeys[i]);
    }
    processor.checkAndClearProcessResult("0:X0+null", "1:X1+null");
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], "Y" + expectedKeys[i]);
    }
    processor.checkAndClearProcessResult();
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "X" + expectedKey);
    }
    processor.checkAndClearProcessResult("0:X0+Y0", "1:X1+Y1", "2:X2+null", "3:X3+null");
    // push all items to the other stream. this should not produce any item
    for (int expectedKey : expectedKeys) {
        driver.process(topic2, expectedKey, "YY" + expectedKey);
    }
    processor.checkAndClearProcessResult();
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "X" + expectedKey);
    }
    processor.checkAndClearProcessResult("0:X0+YY0", "1:X1+YY1", "2:X2+YY2", "3:X3+YY3");
    for (int i = 0; i < 2; i++) {
        driver.process(topic2, expectedKeys[i], null);
    }
    processor.checkAndClearProcessResult();
    for (int expectedKey : expectedKeys) {
        driver.process(topic1, expectedKey, "XX" + expectedKey);
    }
    processor.checkAndClearProcessResult("0:XX0+null", "1:XX1+null", "2:XX2+YY2", "3:XX3+YY3");
}