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/*
* Copyright 2013 Netflix, Inc.
*
* 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 feign.codec;
import feign.Response;
import org.testng.annotations.Test;
import org.w3c.dom.Document;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNull;
import static feign.Util.UTF_8;
public class DefaultDecoderTest {
private final Decoder decoder = new Decoder.Default();
@Test public void testDecodesToString() throws Exception {
Response response = knownResponse();
Object decodedObject = decoder.decode(response, String.class);
assertEquals(decodedObject.getClass(), String.class);
assertEquals(decodedObject.toString(), "response body");
}
@Test public void testDecodesToByteArray() throws Exception {
Response response = knownResponse();
Object decodedObject = decoder.decode(response, byte[].class);
assertEquals(decodedObject.getClass(), byte[].class);
assertEquals((byte[]) decodedObject, "response body".getBytes(UTF_8));
}
@Test public void testDecodesNullBodyToNull() throws Exception {
assertNull(decoder.decode(nullBodyResponse(), Document.class));
}
@Test(expectedExceptions = DecodeException.class, expectedExceptionsMessageRegExp = ".* is not a type supported by this decoder.")
public void testRefusesToDecodeOtherTypes() throws Exception {
decoder.decode(knownResponse(), Document.class);
}
private Response knownResponse() {
String content = "response body";
InputStream inputStream = new ByteArrayInputStream(content.getBytes(UTF_8));
Map<String, Collection<String>> headers = new HashMap<String, Collection<String>>();
headers.put("Content-Type", Collections.singleton("text/plain"));
return Response.create(200, "OK", headers, inputStream, content.length());
}
private Response nullBodyResponse() {
return Response.create(200, "OK", Collections.<String, Collection<String>>emptyMap(), null);
}
}