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DefaultDecoderTest.java
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87 lines (76 loc) · 2.84 KB
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/**
* Copyright 2012-2018 The Feign 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 feign.codec;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
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 feign.Response;
import static feign.Util.UTF_8;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
public class DefaultDecoderTest {
@Rule
public final ExpectedException thrown = ExpectedException.none();
private final Decoder decoder = new Decoder.Default();
@Test
public void testDecodesToString() throws Exception {
Response response = knownResponse();
Object decodedObject = decoder.decode(response, String.class);
assertEquals(String.class, decodedObject.getClass());
assertEquals("response body", decodedObject.toString());
}
@Test
public void testDecodesToByteArray() throws Exception {
Response response = knownResponse();
Object decodedObject = decoder.decode(response, byte[].class);
assertEquals(byte[].class, decodedObject.getClass());
assertEquals("response body", new String((byte[]) decodedObject, UTF_8));
}
@Test
public void testDecodesNullBodyToNull() throws Exception {
assertNull(decoder.decode(nullBodyResponse(), Document.class));
}
@Test
public void testRefusesToDecodeOtherTypes() throws Exception {
thrown.expect(DecodeException.class);
thrown.expectMessage(" is not a type supported by this decoder.");
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.builder()
.status(200)
.reason("OK")
.headers(headers)
.body(inputStream, content.length())
.build();
}
private Response nullBodyResponse() {
return Response.builder()
.status(200)
.reason("OK")
.headers(Collections.<String, Collection<String>>emptyMap())
.build();
}
}