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Jackson2SmileDecoderTests.java
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Jackson2SmileDecoderTests.java
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/*
* Copyright 2002-2019 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
*
* https://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.http.codec.json;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.List;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.core.ResolvableType;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.testfixture.codec.AbstractDecoderTests;
import org.springframework.http.MediaType;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
import org.springframework.util.MimeType;
import org.springframework.web.testfixture.xml.Pojo;
import static org.assertj.core.api.Assertions.assertThat;
import static org.springframework.http.MediaType.APPLICATION_JSON;
/**
* Unit tests for {@link Jackson2SmileDecoder}.
*
* @author Sebastien Deleuze
*/
public class Jackson2SmileDecoderTests extends AbstractDecoderTests<Jackson2SmileDecoder> {
private final static MimeType SMILE_MIME_TYPE = new MimeType("application", "x-jackson-smile");
private final static MimeType STREAM_SMILE_MIME_TYPE = new MimeType("application", "stream+x-jackson-smile");
private Pojo pojo1 = new Pojo("f1", "b1");
private Pojo pojo2 = new Pojo("f2", "b2");
private ObjectMapper mapper = Jackson2ObjectMapperBuilder.smile().build();
public Jackson2SmileDecoderTests() {
super(new Jackson2SmileDecoder());
}
@Override
@Test
public void canDecode() {
assertThat(decoder.canDecode(ResolvableType.forClass(Pojo.class), SMILE_MIME_TYPE)).isTrue();
assertThat(decoder.canDecode(ResolvableType.forClass(Pojo.class), STREAM_SMILE_MIME_TYPE)).isTrue();
assertThat(decoder.canDecode(ResolvableType.forClass(Pojo.class), null)).isTrue();
assertThat(decoder.canDecode(ResolvableType.forClass(String.class), null)).isFalse();
assertThat(decoder.canDecode(ResolvableType.forClass(Pojo.class), APPLICATION_JSON)).isFalse();
assertThat(this.decoder.canDecode(ResolvableType.forClass(Pojo.class),
new MediaType("application", "x-jackson-smile", StandardCharsets.UTF_8))).isTrue();
assertThat(this.decoder.canDecode(ResolvableType.forClass(Pojo.class),
new MediaType("application", "x-jackson-smile", StandardCharsets.ISO_8859_1))).isFalse();
}
@Override
@Test
public void decode() {
Flux<DataBuffer> input = Flux.just(this.pojo1, this.pojo2)
.map(this::writeObject)
.flatMap(this::dataBuffer);
testDecodeAll(input, Pojo.class, step -> step
.expectNext(pojo1)
.expectNext(pojo2)
.verifyComplete());
}
private byte[] writeObject(Object o) {
try {
return this.mapper.writer().writeValueAsBytes(o);
}
catch (JsonProcessingException e) {
throw new AssertionError(e);
}
}
@Override
@Test
public void decodeToMono() {
List<Pojo> expected = Arrays.asList(pojo1, pojo2);
Flux<DataBuffer> input = Flux.just(expected)
.map(this::writeObject)
.flatMap(this::dataBuffer);
ResolvableType elementType = ResolvableType.forClassWithGenerics(List.class, Pojo.class);
testDecodeToMono(input, elementType, step -> step
.expectNext(expected)
.expectComplete()
.verify(), null, null);
}
}