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TableSourceNodeTest.java
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TableSourceNodeTest.java
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/*
* 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.kstream.internals.graph;
import org.apache.kafka.streams.kstream.Consumed;
import org.apache.kafka.streams.kstream.Materialized;
import org.apache.kafka.streams.kstream.internals.ConsumedInternal;
import org.apache.kafka.streams.kstream.internals.KTableSource;
import org.apache.kafka.streams.kstream.internals.MaterializedInternal;
import org.apache.kafka.streams.kstream.internals.graph.TableSourceNode.TableSourceNodeBuilder;
import org.apache.kafka.streams.processor.internals.InternalTopologyBuilder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
@RunWith(MockitoJUnitRunner.StrictStubs.class)
public class TableSourceNodeTest {
private static final String STORE_NAME = "store-name";
private static final String TOPIC = "input-topic";
@Mock
private InternalTopologyBuilder topologyBuilder;
@Test
public void shouldConnectStateStoreToInputTopicIfInputTopicIsUsedAsChangelog() {
final boolean shouldReuseSourceTopicForChangelog = true;
buildTableSourceNode(shouldReuseSourceTopicForChangelog);
verify(topologyBuilder).connectSourceStoreAndTopic(STORE_NAME, TOPIC);
}
@Test
public void shouldConnectStateStoreToChangelogTopic() {
final boolean shouldReuseSourceTopicForChangelog = false;
buildTableSourceNode(shouldReuseSourceTopicForChangelog);
verify(topologyBuilder, never()).connectSourceStoreAndTopic(STORE_NAME, TOPIC);
}
private void buildTableSourceNode(final boolean shouldReuseSourceTopicForChangelog) {
final TableSourceNodeBuilder<String, String> tableSourceNodeBuilder = TableSourceNode.tableSourceNodeBuilder();
final TableSourceNode<String, String> tableSourceNode = tableSourceNodeBuilder
.withTopic(TOPIC)
.withMaterializedInternal(new MaterializedInternal<>(Materialized.as(STORE_NAME)))
.withConsumedInternal(new ConsumedInternal<>(Consumed.as("node-name")))
.withProcessorParameters(
new ProcessorParameters<>(new KTableSource<>(STORE_NAME, STORE_NAME), null))
.build();
tableSourceNode.reuseSourceTopicForChangeLog(shouldReuseSourceTopicForChangelog);
tableSourceNode.writeToTopology(topologyBuilder);
}
}