/*
* 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.util.Collections;
import org.junit.Test;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
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.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author Sebastien Deleuze
* @author Brian Clozel
* @author Mark Paluch
*/
public class StringDecoderTests extends AbstractDataBufferAllocatingTestCase {
private StringDecoder decoder = StringDecoder.allMimeTypes(true);
@Test
public void canDecode() {
assertTrue(this.decoder.canDecode(ResolvableType.forClass(String.class),
MimeTypeUtils.TEXT_PLAIN));
assertTrue(this.decoder.canDecode(ResolvableType.forClass(String.class),
MimeTypeUtils.TEXT_HTML));
assertTrue(this.decoder.canDecode(ResolvableType.forClass(String.class),
MimeTypeUtils.APPLICATION_JSON));
assertFalse(this.decoder.canDecode(ResolvableType.forClass(Integer.class),
MimeTypeUtils.TEXT_PLAIN));
assertFalse(this.decoder.canDecode(ResolvableType.forClass(Object.class),
MimeTypeUtils.APPLICATION_JSON));
}
@Test
public void decode() throws InterruptedException {
this.decoder = StringDecoder.allMimeTypes(false);
Flux<DataBuffer> source = Flux.just(stringBuffer("foo"), stringBuffer("bar"), stringBuffer("baz"));
Flux<String> output = this.decoder.decode(source, ResolvableType.forClass(String.class),
null, Collections.emptyMap());
StepVerifier.create(output)
.expectNext("foo", "bar", "baz")
.expectComplete()
.verify();
}
@Test
public void decodeNewLine() throws InterruptedException {
DataBuffer fooBar = stringBuffer("\nfoo\r\nbar\r");
DataBuffer baz = stringBuffer("\nbaz");
Flux<DataBuffer> source = Flux.just(fooBar, baz);
Flux<String> output = decoder.decode(source, ResolvableType.forClass(String.class),
null, Collections.emptyMap());
StepVerifier.create(output)
.expectNext("\n", "foo\r", "\n", "bar\r", "\n", "baz")
.expectComplete()
.verify();
}
@Test
public void decodeEmptyFlux() throws InterruptedException {
Flux<DataBuffer> source = Flux.empty();
Flux<String> output = this.decoder.decode(source, ResolvableType.forClass(String.class),
null, Collections.emptyMap());
StepVerifier.create(output)
.expectNextCount(0)
.expectComplete()
.verify();
}
@Test
public void decodeEmptyString() throws InterruptedException {
Flux<DataBuffer> source = Flux.just(stringBuffer(""));
Flux<String> output = this.decoder.decode(source,
ResolvableType.forClass(String.class), null, Collections.emptyMap());
StepVerifier.create(output)
.expectNext("")
.expectComplete().verify();
}
@Test
public void decodeToMono() throws InterruptedException {
this.decoder = StringDecoder.allMimeTypes(false);
Flux<DataBuffer> source = Flux.just(stringBuffer("foo"), stringBuffer("bar"), stringBuffer("baz"));
Mono<String> output = this.decoder.decodeToMono(source,
ResolvableType.forClass(String.class), null, Collections.emptyMap());
StepVerifier.create(output)
.expectNext("foobarbaz")
.expectComplete()
.verify();
}
@Test
public void decodeToMonoWithEmptyFlux() throws InterruptedException {
Flux<DataBuffer> source = Flux.empty();
Mono<String> output = this.decoder.decodeToMono(source,
ResolvableType.forClass(String.class), null, Collections.emptyMap());
StepVerifier.create(output)
.expectNextCount(0)
.expectComplete()
.verify();
}
}