| /* |
| * Copyright (C) 2015 Square, 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 com.squareup.okhttp; |
| |
| import com.squareup.okhttp.internal.SslContextBuilder; |
| import com.squareup.okhttp.mockwebserver.MockResponse; |
| import com.squareup.okhttp.mockwebserver.MockWebServer; |
| import com.squareup.okhttp.mockwebserver.SocketPolicy; |
| import com.squareup.okhttp.testing.RecordingHostnameVerifier; |
| import java.util.Arrays; |
| import java.util.concurrent.TimeUnit; |
| import javax.net.ssl.SSLContext; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TestRule; |
| import org.junit.rules.Timeout; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public final class ConnectionReuseTest { |
| @Rule public final TestRule timeout = new Timeout(30_000); |
| @Rule public final MockWebServer server = new MockWebServer(); |
| |
| private SSLContext sslContext = SslContextBuilder.localhost(); |
| private OkHttpClient client = new OkHttpClient(); |
| |
| @Test public void connectionsAreReused() throws Exception { |
| server.enqueue(new MockResponse().setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| assertConnectionReused(request, request); |
| } |
| |
| @Test public void connectionsAreReusedWithHttp2() throws Exception { |
| enableHttp2(); |
| server.enqueue(new MockResponse().setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| assertConnectionReused(request, request); |
| } |
| |
| @Test public void connectionsAreNotReusedWithRequestConnectionClose() throws Exception { |
| server.enqueue(new MockResponse().setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request requestA = new Request.Builder() |
| .url(server.url("/")) |
| .header("Connection", "close") |
| .build(); |
| Request requestB = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| assertConnectionNotReused(requestA, requestB); |
| } |
| |
| @Test public void connectionsAreNotReusedWithResponseConnectionClose() throws Exception { |
| server.enqueue(new MockResponse() |
| .addHeader("Connection", "close") |
| .setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request requestA = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| Request requestB = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| assertConnectionNotReused(requestA, requestB); |
| } |
| |
| @Test public void connectionsAreNotReusedWithUnknownLengthResponseBody() throws Exception { |
| server.enqueue(new MockResponse() |
| .setBody("a") |
| .setSocketPolicy(SocketPolicy.DISCONNECT_AT_END) |
| .clearHeaders()); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| assertConnectionNotReused(request, request); |
| } |
| |
| @Test public void connectionsAreNotReusedIfPoolIsSizeZero() throws Exception { |
| client.setConnectionPool(new ConnectionPool(0, 5000)); |
| server.enqueue(new MockResponse().setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| assertConnectionNotReused(request, request); |
| } |
| |
| @Test public void connectionsReusedWithRedirectEvenIfPoolIsSizeZero() throws Exception { |
| client.setConnectionPool(new ConnectionPool(0, 5000)); |
| server.enqueue(new MockResponse() |
| .setResponseCode(301) |
| .addHeader("Location: /b") |
| .setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| Response response = client.newCall(request).execute(); |
| assertEquals("b", response.body().string()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| assertEquals(1, server.takeRequest().getSequenceNumber()); |
| } |
| |
| @Test public void connectionsNotReusedWithRedirectIfDiscardingResponseIsSlow() throws Exception { |
| client.setConnectionPool(new ConnectionPool(0, 5000)); |
| server.enqueue(new MockResponse() |
| .setResponseCode(301) |
| .addHeader("Location: /b") |
| .setBodyDelay(1, TimeUnit.SECONDS) |
| .setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| Response response = client.newCall(request).execute(); |
| assertEquals("b", response.body().string()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| } |
| |
| @Test public void silentRetryWhenIdempotentRequestFailsOnReusedConnection() throws Exception { |
| server.enqueue(new MockResponse().setBody("a")); |
| server.enqueue(new MockResponse().setSocketPolicy(SocketPolicy.DISCONNECT_AFTER_REQUEST)); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| |
| Response responseA = client.newCall(request).execute(); |
| assertEquals("a", responseA.body().string()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| |
| Response responseB = client.newCall(request).execute(); |
| assertEquals("b", responseB.body().string()); |
| assertEquals(1, server.takeRequest().getSequenceNumber()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| } |
| |
| @Test public void staleConnectionNotReusedForNonIdempotentRequest() throws Exception { |
| server.enqueue(new MockResponse().setBody("a") |
| .setSocketPolicy(SocketPolicy.SHUTDOWN_OUTPUT_AT_END)); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request requestA = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| Response responseA = client.newCall(requestA).execute(); |
| assertEquals("a", responseA.body().string()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| |
| Request requestB = new Request.Builder() |
| .url(server.url("/")) |
| .post(RequestBody.create(MediaType.parse("text/plain"), "b")) |
| .build(); |
| Response responseB = client.newCall(requestB).execute(); |
| assertEquals("b", responseB.body().string()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| } |
| |
| @Test public void http2ConnectionsAreSharedBeforeResponseIsConsumed() throws Exception { |
| enableHttp2(); |
| server.enqueue(new MockResponse().setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| Response response1 = client.newCall(request).execute(); |
| Response response2 = client.newCall(request).execute(); |
| response1.body().string(); // Discard the response body. |
| response2.body().string(); // Discard the response body. |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| assertEquals(1, server.takeRequest().getSequenceNumber()); |
| } |
| |
| @Test public void connectionsAreEvicted() throws Exception { |
| server.enqueue(new MockResponse().setBody("a")); |
| server.enqueue(new MockResponse().setBody("b")); |
| |
| client.setConnectionPool(new ConnectionPool(5, 250, TimeUnit.MILLISECONDS)); |
| Request request = new Request.Builder() |
| .url(server.url("/")) |
| .build(); |
| |
| Response response1 = client.newCall(request).execute(); |
| assertEquals("a", response1.body().string()); |
| |
| // Give the thread pool a chance to evict. |
| Thread.sleep(500); |
| |
| Response response2 = client.newCall(request).execute(); |
| assertEquals("b", response2.body().string()); |
| |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| } |
| |
| private void enableHttp2() { |
| client.setSslSocketFactory(sslContext.getSocketFactory()); |
| client.setHostnameVerifier(new RecordingHostnameVerifier()); |
| client.setProtocols(Arrays.asList(Protocol.HTTP_2, Protocol.HTTP_1_1)); |
| server.useHttps(sslContext.getSocketFactory(), false); |
| server.setProtocols(client.getProtocols()); |
| } |
| |
| private void assertConnectionReused(Request... requests) throws Exception { |
| for (int i = 0; i < requests.length; i++) { |
| Response response = client.newCall(requests[i]).execute(); |
| response.body().string(); // Discard the response body. |
| assertEquals(i, server.takeRequest().getSequenceNumber()); |
| } |
| } |
| |
| private void assertConnectionNotReused(Request... requests) throws Exception { |
| for (Request request : requests) { |
| Response response = client.newCall(request).execute(); |
| response.body().string(); // Discard the response body. |
| assertEquals(0, server.takeRequest().getSequenceNumber()); |
| } |
| } |
| } |