/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.kafka.streams.processor.internals;
import org.apache.kafka.clients.producer.MockProducer;
import org.apache.kafka.common.serialization.Serdes;
import org.apache.kafka.common.serialization.Serializer;
import org.apache.kafka.common.utils.Bytes;
import org.apache.kafka.streams.errors.StreamsException;
import org.apache.kafka.streams.state.StateSerdes;
import org.apache.kafka.test.MockProcessorContext;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.fail;
public class SinkNodeTest {
private final Serializer anySerializer = Serdes.Bytes().serializer();
private final StateSerdes anyStateSerde = StateSerdes.withBuiltinTypes("anyName", Bytes.class, Bytes.class);
private final MockProcessorContext context = new MockProcessorContext(anyStateSerde,
new RecordCollectorImpl(new MockProducer<byte[], byte[]>(true, anySerializer, anySerializer), null));
private final SinkNode sink = new SinkNode<>("anyNodeName", "any-output-topic", anySerializer, anySerializer, null);
@Before
public void before() {
sink.init(context);
}
@After
public void after() {
context.close();
}
@Test
@SuppressWarnings("unchecked")
public void shouldThrowStreamsExceptionOnInputRecordWithInvalidTimestamp() {
final Bytes anyKey = new Bytes("any key".getBytes());
final Bytes anyValue = new Bytes("any value".getBytes());
// When/Then
context.setTime(-1); // ensures a negative timestamp is set for the record we send next
try {
sink.process(anyKey, anyValue);
fail("Should have thrown StreamsException");
} catch (final StreamsException ignored) {
// expected
}
}
@Test
@SuppressWarnings("unchecked")
public void shouldThrowStreamsExceptionOnKeyValueTypeSerializerMismatch() {
final String keyOfDifferentTypeThanSerializer = "key with different type";
final String valueOfDifferentTypeThanSerializer = "value with different type";
// When/Then
context.setTime(0);
try {
sink.process(keyOfDifferentTypeThanSerializer, valueOfDifferentTypeThanSerializer);
fail("Should have thrown StreamsException");
} catch (final StreamsException e) {
assertThat(e.getCause(), instanceOf(ClassCastException.class));
}
}
@Test
@SuppressWarnings("unchecked")
public void shouldHandleNullKeysWhenThrowingStreamsExceptionOnKeyValueTypeSerializerMismatch() {
final String invalidValueToTriggerSerializerMismatch = "";
// When/Then
context.setTime(1);
try {
sink.process(null, invalidValueToTriggerSerializerMismatch);
fail("Should have thrown StreamsException");
} catch (final StreamsException e) {
assertThat(e.getCause(), instanceOf(ClassCastException.class));
assertThat(e.getMessage(), containsString("unknown because key is null"));
}
}
@Test
@SuppressWarnings("unchecked")
public void shouldHandleNullValuesWhenThrowingStreamsExceptionOnKeyValueTypeSerializerMismatch() {
final String invalidKeyToTriggerSerializerMismatch = "";
// When/Then
context.setTime(1);
try {
sink.process(invalidKeyToTriggerSerializerMismatch, null);
fail("Should have thrown StreamsException");
} catch (final StreamsException e) {
assertThat(e.getCause(), instanceOf(ClassCastException.class));
assertThat(e.getMessage(), containsString("unknown because value is null"));
}
}
}