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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.predicate.serialization;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import static org.junit.Assert.assertArrayEquals;
/**
* @author bjorncs
*/
public class SerializationTestHelper {
private SerializationTestHelper() {}
public static <T> void assertSerializationDeserializationMatches
(T object, Serializer<T> serializer, Deserializer<T> deserializer) throws IOException {
ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream(4096);
DataOutputStream out = new DataOutputStream(byteArrayOut);
serializer.serialize(object, out);
out.flush();
byte[] bytes = byteArrayOut.toByteArray();
DataInputStream in = new DataInputStream(new ByteArrayInputStream(bytes));
T newObject = deserializer.deserialize(in);
byteArrayOut = new ByteArrayOutputStream(4096);
out = new DataOutputStream(byteArrayOut);
serializer.serialize(newObject, out);
byte[] newBytes = byteArrayOut.toByteArray();
assertArrayEquals(bytes, newBytes);
}
@FunctionalInterface
public interface Serializer<T> {
void serialize(T object, DataOutputStream out) throws IOException;
}
@FunctionalInterface
public interface Deserializer<T> {
T deserialize(DataInputStream in) throws IOException;
}
}
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