/*
* 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.ribbon;
import com.google.mockwebserver.MockResponse;
import com.google.mockwebserver.MockWebServer;
import com.google.mockwebserver.SocketPolicy;
import dagger.Provides;
import feign.Feign;
import feign.RequestLine;
import feign.codec.Decoder;
import feign.codec.Encoder;
import org.testng.annotations.Test;
import java.io.IOException;
import java.net.URL;
import static com.netflix.config.ConfigurationManager.getConfigInstance;
import static feign.Util.UTF_8;
import static org.testng.Assert.assertEquals;
import javax.inject.Named;
@Test
public class RibbonClientTest {
interface TestInterface {
@RequestLine("POST /") void post();
@RequestLine("GET /?a={a}") void getWithQueryParameters(@Named("a") String a);
@dagger.Module(injects = Feign.class, overrides = true, addsTo = Feign.Defaults.class)
static class Module {
@Provides Decoder defaultDecoder() {
return new Decoder.Default();
}
@Provides Encoder defaultEncoder() {
return new Encoder.Default();
}
}
}
@Test
public void loadBalancingDefaultPolicyRoundRobin() throws IOException, InterruptedException {
String client = "RibbonClientTest-loadBalancingDefaultPolicyRoundRobin";
String serverListKey = client + ".ribbon.listOfServers";
MockWebServer server1 = new MockWebServer();
server1.enqueue(new MockResponse().setBody("success!".getBytes(UTF_8)));
server1.play();
MockWebServer server2 = new MockWebServer();
server2.enqueue(new MockResponse().setBody("success!".getBytes(UTF_8)));
server2.play();
getConfigInstance().setProperty(serverListKey, hostAndPort(server1.getUrl("")) + "," + hostAndPort(server2.getUrl("")));
try {
TestInterface api = Feign.create(TestInterface.class, "http://" + client, new TestInterface.Module(), new RibbonModule());
api.post();
api.post();
assertEquals(server1.getRequestCount(), 1);
assertEquals(server2.getRequestCount(), 1);
// TODO: verify ribbon stats match
// assertEquals(target.lb().getLoadBalancerStats().getSingleServerStat())
} finally {
server1.shutdown();
server2.shutdown();
getConfigInstance().clearProperty(serverListKey);
}
}
@Test
public void ioExceptionRetry() throws IOException, InterruptedException {
String client = "RibbonClientTest-ioExceptionRetry";
String serverListKey = client + ".ribbon.listOfServers";
MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setSocketPolicy(SocketPolicy.DISCONNECT_AT_START));
server.enqueue(new MockResponse().setBody("success!".getBytes(UTF_8)));
server.play();
getConfigInstance().setProperty(serverListKey, hostAndPort(server.getUrl("")));
try {
TestInterface api = Feign.create(TestInterface.class, "http://" + client, new TestInterface.Module(), new RibbonModule());
api.post();
assertEquals(server.getRequestCount(), 2);
// TODO: verify ribbon stats match
// assertEquals(target.lb().getLoadBalancerStats().getSingleServerStat())
} finally {
server.shutdown();
getConfigInstance().clearProperty(serverListKey);
}
}
/*
This test-case replicates a bug that occurs when using RibbonRequest with a query string.
The querystrings would not be URL-encoded, leading to invalid HTTP-requests if the query string contained
invalid characters (ex. space).
*/
@Test public void urlEncodeQueryStringParameters () throws IOException, InterruptedException {
String client = "RibbonClientTest-urlEncodeQueryStringParameters";
String serverListKey = client + ".ribbon.listOfServers";
String queryStringValue = "some string with space";
String expectedQueryStringValue = "some+string+with+space";
String expectedRequestLine = String.format("GET /?a=%s HTTP/1.1", expectedQueryStringValue);
MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("success!".getBytes(UTF_8)));
server.play();
getConfigInstance().setProperty(serverListKey, hostAndPort(server.getUrl("")));
try {
TestInterface api = Feign.create(TestInterface.class, "http://" + client, new TestInterface.Module(), new RibbonModule());
api.getWithQueryParameters(queryStringValue);
final String recordedRequestLine = server.takeRequest().getRequestLine();
assertEquals(recordedRequestLine, expectedRequestLine);
} finally {
server.shutdown();
getConfigInstance().clearProperty(serverListKey);
}
}
static String hostAndPort(URL url) {
// our build slaves have underscores in their hostnames which aren't permitted by ribbon
return "localhost:" + url.getPort();
}
}