/*
* Copyright 2002-2016 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.io.IOException;
import java.util.Collections;
import org.junit.Test;
import reactor.core.publisher.Flux;
import reactor.test.StepVerifier;
import org.springframework.core.ResolvableType;
import org.springframework.core.io.ByteArrayResource;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.util.MimeTypeUtils;
import org.springframework.util.StreamUtils;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Arjen Poutsma
*/
public class ResourceDecoderTests extends AbstractDataBufferAllocatingTestCase {
private final ResourceDecoder decoder = new ResourceDecoder();
@Test
public void canDecode() throws Exception {
assertTrue(this.decoder.canDecode(ResolvableType.forClass(InputStreamResource.class),
MimeTypeUtils.TEXT_PLAIN));
assertTrue(this.decoder.canDecode(ResolvableType.forClass(ByteArrayResource.class),
MimeTypeUtils.TEXT_PLAIN));
assertTrue(this.decoder.canDecode(ResolvableType.forClass(Resource.class),
MimeTypeUtils.TEXT_PLAIN));
assertTrue(this.decoder.canDecode(ResolvableType.forClass(InputStreamResource.class),
MimeTypeUtils.APPLICATION_JSON));
}
@Test
public void decode() throws Exception {
DataBuffer fooBuffer = stringBuffer("foo");
DataBuffer barBuffer = stringBuffer("bar");
Flux<DataBuffer> source = Flux.just(fooBuffer, barBuffer);
Flux<Resource> result = this.decoder
.decode(source, ResolvableType.forClass(Resource.class), null, Collections.emptyMap());
StepVerifier.create(result)
.consumeNextWith(resource -> {
try {
byte[] bytes = StreamUtils.copyToByteArray(resource.getInputStream());
assertEquals("foobar", new String(bytes));
}
catch (IOException e) {
fail(e.getMessage());
}
})
.expectComplete()
.verify();
}
}