mjsax commented on code in PR #13249: URL: https://github.com/apache/kafka/pull/13249#discussion_r1107869144
########## streams/src/test/java/org/apache/kafka/streams/state/internals/NullableValueAndTimestampSerdeTest.java: ########## @@ -0,0 +1,72 @@ +/* + * 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.state.internals; + +import org.apache.kafka.common.serialization.Deserializer; +import org.apache.kafka.common.serialization.Serdes.StringSerde; +import org.apache.kafka.common.serialization.Serializer; +import org.apache.kafka.streams.state.ValueAndTimestamp; +import org.junit.Test; + +import static org.hamcrest.MatcherAssert.assertThat; +import static org.hamcrest.Matchers.is; +import static org.hamcrest.Matchers.notNullValue; +import static org.hamcrest.Matchers.nullValue; + +public class NullableValueAndTimestampSerdeTest { + + private final static NullableValueAndTimestampSerde<String> SERDE = new NullableValueAndTimestampSerde<>(new StringSerde()); + private final static Serializer<ValueAndTimestamp<String>> SERIALIZER = SERDE.serializer(); + private final static Deserializer<ValueAndTimestamp<String>> DESERIALIZER = SERDE.deserializer(); + + @Test + public void shouldSerdeNull() { + assertThat(SERIALIZER.serialize(null, null), is(nullValue())); + assertThat(DESERIALIZER.deserialize(null, null), is(nullValue())); + } + + @Test + public void shouldSerdeNonNull() { + final ValueAndTimestamp<String> valueAndTimestamp = ValueAndTimestamp.make("foo", 10L); + + final byte[] rawValueAndTimestamp = SERIALIZER.serialize(null, valueAndTimestamp); + assertThat(rawValueAndTimestamp, is(notNullValue())); + + assertThat(DESERIALIZER.deserialize(null, rawValueAndTimestamp), is(valueAndTimestamp)); + } + + @Test + public void shouldSerdeNonNullWithNullValue() { + final ValueAndTimestamp<String> valueAndTimestamp = ValueAndTimestamp.makeAllowNullable(null, 10L); + + final byte[] rawValueAndTimestamp = SERIALIZER.serialize(null, valueAndTimestamp); + assertThat(rawValueAndTimestamp, is(notNullValue())); + + assertThat(DESERIALIZER.deserialize(null, rawValueAndTimestamp), is(valueAndTimestamp)); + } + + @Test + public void shouldSerializeNonNullWithEmptyBytes() { Review Comment: Yes, that was the question. I was just not sure if it would do this. SG. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
