mjsax commented on code in PR #20403:
URL: https://github.com/apache/kafka/pull/20403#discussion_r2404148247
##########
streams/src/test/java/org/apache/kafka/streams/processor/internals/ProcessorTopologyTest.java:
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@@ -867,6 +867,27 @@ public void
testDrivingInternalRepartitioningForwardingTimestampTopology() {
equalTo(new TestRecord<>("key3", "value3", null, 3000L)));
}
+
+ @Test
+ public void testTopologyInitializationWithInitialKeyAndValue() {
+ final String initialKey = "key1";
+ final String initialValue = "value1";
+ final StoreBuilder<KeyValueStore<String, String>> storeBuilder =
+
Stores.keyValueStoreBuilder(Stores.inMemoryKeyValueStore(DEFAULT_STORE_NAME),
Serdes.String(), Serdes.String()).withLoggingEnabled(Collections.emptyMap());
+ topology.addSource("source1", STRING_DESERIALIZER,
STRING_DESERIALIZER, INPUT_TOPIC_1);
+ topology.addProcessor("processor1", defineWithStores(() -> new
StatefulProcessorWithInitialization(DEFAULT_STORE_NAME, initialKey,
initialValue), Collections.singleton(storeBuilder)), "source1");
+ driver = new TopologyTestDriver(topology, props);
+ final TestInputTopic<String, String> inputTopic =
driver.createInputTopic(INPUT_TOPIC_1, STRING_SERIALIZER, STRING_SERIALIZER);
+ inputTopic.pipeInput("key2", "value2");
Review Comment:
Do we even need to pipe anything though the input topic? I though `init()`
would be executed even w/o input data?
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