/*
* Copyright 2002-2017 the original author or authors.
*
* Licensed 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.springframework.core.codec;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import org.junit.Before;
import org.junit.Test;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.test.StepVerifier;
import org.springframework.core.ResolvableType;
import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.util.MimeTypeUtils;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author Arjen Poutsma
*/
public class ByteArrayEncoderTests extends AbstractDataBufferAllocatingTestCase {
private ByteArrayEncoder encoder;
@Before
public void createEncoder() {
this.encoder = new ByteArrayEncoder();
}
@Test
public void canEncode() {
assertTrue(this.encoder.canEncode(ResolvableType.forClass(byte[].class),
MimeTypeUtils.TEXT_PLAIN));
assertFalse(this.encoder.canEncode(ResolvableType.forClass(Integer.class),
MimeTypeUtils.TEXT_PLAIN));
assertTrue(this.encoder.canEncode(ResolvableType.forClass(byte[].class),
MimeTypeUtils.APPLICATION_JSON));
// SPR-15464
assertFalse(this.encoder.canEncode(ResolvableType.NONE, null));
}
@Test
public void encode() {
byte[] fooBytes = "foo".getBytes(StandardCharsets.UTF_8);
byte[] barBytes = "bar".getBytes(StandardCharsets.UTF_8);
Flux<byte[]> source = Flux.just(fooBytes, barBytes);
Flux<DataBuffer> output = this.encoder.encode(source, this.bufferFactory,
ResolvableType.forClassWithGenerics(Publisher.class, ByteBuffer.class),
null, Collections.emptyMap());
StepVerifier.create(output)
.consumeNextWith(b -> {
byte[] buf = new byte[3];
b.read(buf);
assertArrayEquals(fooBytes, buf);
})
.consumeNextWith(b -> {
byte[] buf = new byte[3];
b.read(buf);
assertArrayEquals(barBytes, buf);
})
.expectComplete()
.verify();
}
}