/* TestPerHostServiceWrappedHttpClient.java
*
* Copyright 2009-2015 Comcast Interactive Media, LLC.
*
* 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 org.fishwife.jrugged.httpclient;
import static org.easymock.EasyMock.*;
import static org.junit.Assert.*;
import java.util.concurrent.Callable;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.HttpVersion;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.message.BasicHttpResponse;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import org.fishwife.jrugged.ServiceWrapper;
import org.fishwife.jrugged.ServiceWrapperFactory;
import org.junit.Before;
import org.junit.Test;
public class TestPerHostServiceWrappedHttpClient {
private PerHostServiceWrappedHttpClient impl;
private HttpClient mockBackend;
private ServiceWrapperFactory mockFactory;
private final static String HOST_STRING = "foo.example.com:8080";
private HttpHost host;
private HttpRequest req;
private HttpContext ctx;
private HttpResponse resp;
@Before
public void setUp() {
host = new HttpHost(HOST_STRING);
req = new HttpGet("http://foo.example.com:8080/");
ctx = new BasicHttpContext();
resp = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
mockBackend = createMock(HttpClient.class);
mockFactory = createMock(ServiceWrapperFactory.class);
impl = new PerHostServiceWrappedHttpClient(mockBackend, mockFactory);
}
private void replayMocks() {
replay(mockBackend);
replay(mockFactory);
}
private void verifyMocks() {
verify(mockBackend);
verify(mockFactory);
}
@Test
public void isAnHttpClient() {
assertTrue(impl instanceof HttpClient);
}
@Test
public void usesRequestHostToCreateWrapper() throws Exception {
final ServiceWrapper wrapper = new NullWrapper();
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp);
expect(mockFactory.getWrapperWithName(HOST_STRING)).andReturn(wrapper);
replayMocks();
impl.execute(host, req, ctx);
verifyMocks();
}
@Test
public void wiresWrapperUpToRequest() throws Exception {
final Flag f = new Flag();
ServiceWrapper wrapper = new NullWrapper(f);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp);
expect(mockFactory.getWrapperWithName(isA(String.class))).andReturn(wrapper);
replayMocks();
impl.execute(host, req, ctx);
verifyMocks();
assertTrue(f.set);
}
@Test
public void reusesWrapperForRequestsFromSameHost() throws Exception {
ServiceWrapper wrapper = new NullWrapper();
HttpUriRequest req1 = new HttpGet("http://foo.example.com/bar");
HttpUriRequest req2 = new HttpGet("http://foo.example.com/baz");
HttpResponse resp1 = resp;
HttpResponse resp2 = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
expect(mockFactory.getWrapperWithName(isA(String.class))).andReturn(wrapper);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp1);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp2);
replayMocks();
impl.execute(req1, ctx);
impl.execute(req2, ctx);
verifyMocks();
}
@Test
public void reusesWrapperForRequestsFromEquivalentHostsDefaultHttpPort() throws Exception {
ServiceWrapper wrapper = new NullWrapper();
HttpUriRequest req1 = new HttpGet("http://foo.example.com/bar");
HttpUriRequest req2 = new HttpGet("http://foo.example.com:80/baz");
HttpResponse resp1 = resp;
HttpResponse resp2 = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
expect(mockFactory.getWrapperWithName(isA(String.class))).andReturn(wrapper);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp1);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp2);
replayMocks();
impl.execute(req1, ctx);
impl.execute(req2, ctx);
verifyMocks();
}
@Test
public void reusesWrapperForRequestsFromEquivalentHostsDefaultHttpsPort() throws Exception {
ServiceWrapper wrapper = new NullWrapper();
HttpUriRequest req1 = new HttpGet("https://foo.example.com/bar");
HttpUriRequest req2 = new HttpGet("https://foo.example.com:443/baz");
HttpResponse resp1 = resp;
HttpResponse resp2 = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
expect(mockFactory.getWrapperWithName(isA(String.class))).andReturn(wrapper);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp1);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp2);
replayMocks();
impl.execute(req1, ctx);
impl.execute(req2, ctx);
verifyMocks();
}
@Test
public void reusesWrapperForRequestsFromEquivalentHostsCaseInsensitiveHostName() throws Exception {
ServiceWrapper wrapper = new NullWrapper();
HttpUriRequest req1 = new HttpGet("http://foo.example.com/bar");
HttpUriRequest req2 = new HttpGet("http://FOO.Example.cOM/baz");
HttpResponse resp1 = resp;
HttpResponse resp2 = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
expect(mockFactory.getWrapperWithName(isA(String.class))).andReturn(wrapper);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp1);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp2);
replayMocks();
impl.execute(req1, ctx);
impl.execute(req2, ctx);
verifyMocks();
}
@Test
public void usesDifferentWrappersForDifferentHosts() throws Exception {
Flag f1 = new Flag();
ServiceWrapper wrapper1 = new NullWrapper(f1);
Flag f2 = new Flag();
ServiceWrapper wrapper2 = new NullWrapper(f2);
HttpUriRequest req1 = new HttpGet("http://foo.example.com/");
HttpUriRequest req2 = new HttpGet("http://bar.example.com/");
HttpResponse resp1 = resp;
HttpResponse resp2 = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
expect(mockFactory.getWrapperWithName("foo.example.com:80")).andReturn(wrapper1);
expect(mockFactory.getWrapperWithName("bar.example.com:80")).andReturn(wrapper2);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp1);
expect(mockBackend.execute(isA(HttpHost.class), isA(HttpRequest.class), isA(HttpContext.class)))
.andReturn(resp2);
replayMocks();
impl.execute(req1, ctx);
assertTrue(f1.set && !f2.set);
impl.execute(req2, ctx);
assertTrue(f1.set && f2.set);
verifyMocks();
}
private static class Flag {
public boolean set;
}
private static class NullWrapper implements ServiceWrapper {
private Flag f = new Flag();
public NullWrapper() { }
public NullWrapper(Flag f) { this.f = f; }
public <T> T invoke(Callable<T> c) throws Exception {
f.set = true;
return c.call();
}
public void invoke(Runnable r) throws Exception {
f.set = true;
r.run();
}
public <T> T invoke(Runnable r, T result) throws Exception {
f.set = true;
r.run();
return result;
}
}
}