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TraceRequestInterceptorTest.java
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TraceRequestInterceptorTest.java
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/*
* Copyright 2016 Palantir Technologies, Inc. All rights reserved.
*
* 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.palantir.remoting.http;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import com.google.common.base.Optional;
import com.palantir.tracing.TraceState;
import com.palantir.tracing.Traces;
import com.squareup.okhttp.mockwebserver.MockResponse;
import com.squareup.okhttp.mockwebserver.MockWebServer;
import com.squareup.okhttp.mockwebserver.RecordedRequest;
import javax.net.ssl.SSLSocketFactory;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
public final class TraceRequestInterceptorTest {
@Rule
public final MockWebServer server = new MockWebServer();
private TestRequestInterceptorService service;
@Before
public void before() {
String endpointUri = "http://localhost:" + server.getPort();
service = FeignClients.standard().createProxy(
Optional.<SSLSocketFactory>absent(),
endpointUri,
TestRequestInterceptorService.class);
server.enqueue(new MockResponse().setBody("{}"));
}
@Test
public void testTraceRequestInterceptor_sendsAValidTraceId() throws InterruptedException {
service.get();
TraceState expectedTrace = Traces.getTrace().get();
RecordedRequest request = server.takeRequest();
assertThat(request.getHeader(Traces.Headers.TRACE_ID), is(expectedTrace.getTraceId()));
assertThat(request.getHeader(Traces.Headers.SPAN_ID), is(expectedTrace.getSpanId()));
assertThat(request.getHeader(Traces.Headers.PARENT_SPAN_ID), is(expectedTrace.getParentSpanId().orNull()));
}
@Path("/")
public interface TestRequestInterceptorService {
@GET
Object get();
}
}