/**

* Copyright 2012-2020 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;

import feign.Request.HttpMethod;

import org.assertj.core.util.Lists;

import org.junit.Test;

import java.util.Arrays;

import java.util.Collection;

import java.util.Collections;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

import static feign.assertj.FeignAssertions.assertThat;

import static org.assertj.core.api.Assertions.entry;

@SuppressWarnings("deprecation")

public class ResponseTest {

@Test

public void reasonPhraseIsOptional() {

Response response = Response.builder()

.status(200)

.headers(Collections.<String, Collection<String>>emptyMap())

.request(

Request.create(HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8, null))

.body(new byte[0])

.build();

assertThat(response.reason()).isNull();

assertThat(response.toString()).isEqualTo("HTTP/1.1 200\n\n");

}

@Test

public void canAccessHeadersCaseInsensitively() {

Map<String, Collection<String>> headersMap = new LinkedHashMap<>();

List<String> valueList = Collections.singletonList("application/json");

headersMap.put("Content-Type", valueList);

Response response = Response.builder()

.status(200)

.headers(headersMap)

.request(

Request.create(HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8, null))

.body(new byte[0])

.build();

assertThat(response.headers().get("content-type")).isEqualTo(valueList);

assertThat(response.headers().get("Content-Type")).isEqualTo(valueList);

}

@Test

public void headerValuesWithSameNameOnlyVaryingInCaseAreMerged() {

Map<String, Collection<String>> headersMap = new LinkedHashMap<>();

headersMap.put("Set-Cookie", Arrays.asList("Cookie-A=Value", "Cookie-B=Value"));

headersMap.put("set-cookie", Collections.singletonList("Cookie-C=Value"));

Response response = Response.builder()

.status(200)

.headers(headersMap)

.request(

Request.create(HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8, null))

.body(new byte[0])

.build();

List<String> expectedHeaderValue =

Arrays.asList("Cookie-A=Value", "Cookie-B=Value", "Cookie-C=Value");

assertThat(response.headers()).containsOnly(entry(("set-cookie"), expectedHeaderValue));

}

@Test

public void headersAreOptional() {

Response response = Response.builder()

.status(200)

.request(

Request.create(HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8, null))

.body(new byte[0])

.build();

assertThat(response.headers()).isNotNull().isEmpty();

}

@Test

public void support1xxStatusCodes() {

Response response = Response.builder()

.status(103)

.request(

Request.create(HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8, null))

.body((Response.Body) null)

.build();

assertThat(response.status()).isEqualTo(103);

}

@Test

public void statusCodesOfAnyValueAreAllowed() {

Lists.list(600, 50, 35600).forEach(statusCode -> {

Response response = Response.builder()

.status(statusCode)

.request(Request.create(HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8,

null))

.body((Response.Body) null)

.build();

assertThat(response.status()).isEqualTo(statusCode);

});

}

}