/*
* Copyright 2013-2016 the original author or 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 org.springframework.cloud.netflix.ribbon.okhttp;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;
import static org.hamcrest.Matchers.startsWith;
import static org.junit.Assert.assertThat;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import org.junit.Test;
import org.springframework.cloud.netflix.feign.encoding.HttpEncoding;
import org.springframework.cloud.netflix.ribbon.support.RibbonRequestCustomizer;
import org.springframework.cloud.netflix.zuul.filters.route.RibbonCommandContext;
import org.springframework.util.LinkedMultiValueMap;
import okhttp3.Request;
import okhttp3.RequestBody;
import okio.Buffer;
/**
* @author Spencer Gibb
*/
public class OkHttpRibbonRequestTests {
@Test
public void testNullEntity() throws Exception {
String uri = "http://example.com";
LinkedMultiValueMap<String, String> headers = new LinkedMultiValueMap<>();
headers.add("my-header", "my-value");
// headers.add(HttpEncoding.CONTENT_LENGTH, "5192");
LinkedMultiValueMap<String, String> params = new LinkedMultiValueMap<>();
params.add("myparam", "myparamval");
RibbonCommandContext context = new RibbonCommandContext("example", "GET", uri,
false, headers, params, null, new ArrayList<RibbonRequestCustomizer>());
OkHttpRibbonRequest httpRequest = new OkHttpRibbonRequest(context);
Request request = httpRequest.toRequest();
assertThat("body is not null", request.body(), is(nullValue()));
assertThat("uri is wrong", request.url().toString(), startsWith(uri));
assertThat("my-header is wrong", request.header("my-header"),
is(equalTo("my-value")));
assertThat("myparam is missing", request.url().queryParameter("myparam"),
is(equalTo("myparamval")));
}
@Test
// this situation happens, see
// https://github.com/spring-cloud/spring-cloud-netflix/issues/1042#issuecomment-227723877
public void testEmptyEntityGet() throws Exception {
String entityValue = "";
testEntity(entityValue, new ByteArrayInputStream(entityValue.getBytes()), false,
"GET");
}
@Test
public void testNonEmptyEntityPost() throws Exception {
String entityValue = "abcd";
testEntity(entityValue, new ByteArrayInputStream(entityValue.getBytes()), true,
"POST");
}
void testEntity(String entityValue, ByteArrayInputStream requestEntity,
boolean addContentLengthHeader, String method) throws IOException {
String lengthString = String.valueOf(entityValue.length());
Long length = null;
String uri = "http://example.com";
LinkedMultiValueMap<String, String> headers = new LinkedMultiValueMap<>();
if (addContentLengthHeader) {
headers.add("Content-Length", lengthString);
length = (long) entityValue.length();
}
RibbonRequestCustomizer requestCustomizer = new RibbonRequestCustomizer<Request.Builder>() {
@Override
public boolean accepts(Class builderClass) {
return builderClass == Request.Builder.class;
}
@Override
public void customize(Request.Builder builder) {
builder.addHeader("from-customizer", "foo");
}
};
RibbonCommandContext context = new RibbonCommandContext("example", method, uri,
false, headers, new LinkedMultiValueMap<String, String>(), requestEntity,
Collections.singletonList(requestCustomizer));
context.setContentLength(length);
OkHttpRibbonRequest httpRequest = new OkHttpRibbonRequest(context);
Request request = httpRequest.toRequest();
assertThat("uri is wrong", request.url().toString(), startsWith(uri));
if (addContentLengthHeader) {
assertThat("Content-Length is wrong", request.header("Content-Length"),
is(equalTo(lengthString)));
}
assertThat("from-customizer is wrong", request.header("from-customizer"),
is(equalTo("foo")));
if (!method.equalsIgnoreCase("get")) {
assertThat("body is null", request.body(), is(notNullValue()));
RequestBody body = request.body();
assertThat("contentLength is wrong", body.contentLength(),
is(equalTo((long) entityValue.length())));
Buffer content = new Buffer();
body.writeTo(content);
String string = content.readByteString().utf8();
assertThat("content is wrong", string, is(equalTo(entityValue)));
}
}
}