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OkHttpClientTest.java
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/*
* Copyright 2012-2023 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.okhttp;
import feign.Feign.Builder;
import feign.Headers;
import feign.RequestLine;
import feign.Response;
import feign.Request;
import feign.Util;
import feign.assertj.MockWebServerAssertions;
import feign.client.AbstractClientTest;
import feign.Feign;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.concurrent.TimeUnit;
import okhttp3.mockwebserver.MockResponse;
import org.assertj.core.data.MapEntry;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assume.assumeFalse;
/** Tests client-specific behavior, such as ensuring Content-Length is sent when specified. */
public class OkHttpClientTest extends AbstractClientTest {
@Override
public Builder newBuilder() {
return Feign.builder().client(new OkHttpClient());
}
@Test
public void testContentTypeWithoutCharset() throws Exception {
server.enqueue(new MockResponse()
.setBody("AAAAAAAA"));
OkHttpClientTestInterface api = newBuilder()
.target(OkHttpClientTestInterface.class, "http://localhost:" + server.getPort());
Response response = api.getWithContentType();
// Response length should not be null
assertEquals("AAAAAAAA", Util.toString(response.body().asReader(Util.UTF_8)));
MockWebServerAssertions.assertThat(server.takeRequest())
.hasHeaders(
MapEntry.entry("Accept", Collections.singletonList("text/plain")),
MapEntry.entry("Content-Type", Collections.singletonList("text/plain")))
.hasMethod("GET");
}
@Test
public void testNoFollowRedirect() throws Exception {
server.enqueue(
new MockResponse().setResponseCode(302).addHeader("Location", server.url("redirect")));
// Enqueue a response to fail fast if the redirect is followed, instead of waiting for the
// timeout
server.enqueue(new MockResponse().setBody("Hello"));
OkHttpClientTestInterface api = newBuilder()
// Use the same connect and read timeouts as the OkHttp default
.options(new Request.Options(10_000, TimeUnit.MILLISECONDS, 10_000, TimeUnit.MILLISECONDS,
false))
.target(OkHttpClientTestInterface.class, "http://localhost:" + server.getPort());
Response response = api.get();
// Response length should not be null
assertEquals(302, response.status());
assertEquals(server.url("redirect").toString(),
response.headers().get("Location").iterator().next());
}
@Test
public void testFollowRedirect() throws Exception {
String expectedBody = "Hello";
server.enqueue(
new MockResponse().setResponseCode(302).addHeader("Location", server.url("redirect")));
server.enqueue(new MockResponse().setBody(expectedBody));
OkHttpClientTestInterface api = newBuilder()
// Use the same connect and read timeouts as the OkHttp default
.options(new Request.Options(10_000, TimeUnit.MILLISECONDS, 10_000, TimeUnit.MILLISECONDS,
true))
.target(OkHttpClientTestInterface.class, "http://localhost:" + server.getPort());
Response response = api.get();
// Response length should not be null
assertEquals(200, response.status());
String payload = Util.toString(response.body().asReader(StandardCharsets.UTF_8));
assertEquals(expectedBody, payload);
}
/*
* OkHTTP does not support gzip and deflate compression out-of-the-box. But you can add an
* interceptor that implies it, see
* https://stackoverflow.com/questions/51901333/okhttp-3-how-to-decompress-gzip-deflate-response-
* manually-using-java-android
*/
@Override
public void canSupportGzip() throws Exception {
assumeFalse("OkHTTP client do not support gzip compression", false);
}
@Override
public void canSupportDeflate() throws Exception {
assumeFalse("OkHTTP client do not support deflate compression", false);
}
@Override
public void canExceptCaseInsensitiveHeader() throws Exception {
assumeFalse("OkHTTP client do not support gzip compression", false);
}
public interface OkHttpClientTestInterface {
@RequestLine("GET /")
@Headers({"Accept: text/plain", "Content-Type: text/plain"})
Response getWithContentType();
@RequestLine("GET /")
Response get();
}
}