com.uber.jaeger.senders.zipkin.ZipkinSenderTest.java Source code

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Here is the source code for com.uber.jaeger.senders.zipkin.ZipkinSenderTest.java

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/*
 * Copyright (c) 2016, Uber Technologies, Inc
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.uber.jaeger.senders.zipkin;

import com.uber.jaeger.Span;
import com.uber.jaeger.SpanContext;
import com.uber.jaeger.Tracer;
import com.uber.jaeger.exceptions.SenderException;
import com.uber.jaeger.metrics.InMemoryStatsReporter;
import com.uber.jaeger.reporters.InMemoryReporter;
import com.uber.jaeger.reporters.Reporter;
import com.uber.jaeger.reporters.protocols.ThriftSpanConverter;
import com.uber.jaeger.samplers.ConstSampler;
import org.apache.thrift.transport.AutoExpandingBufferWriteTransport;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import zipkin.Annotation;
import zipkin.BinaryAnnotation;
import zipkin.junit.ZipkinRule;
import zipkin.reporter.urlconnection.URLConnectionSender;

import java.util.ArrayList;
import java.util.List;

import static org.junit.Assert.assertEquals;

public class ZipkinSenderTest {
    final int messageMaxBytes = 1000;

    @Rule
    public ZipkinRule zipkinRule = new ZipkinRule();

    ZipkinSender sender;
    Reporter reporter;
    ThriftSpanConverter converter;
    Tracer tracer;

    @Before
    public void setUp() throws Exception {
        reporter = new InMemoryReporter();
        tracer = new Tracer.Builder("test-sender", reporter, new ConstSampler(true))
                .withStatsReporter(new InMemoryStatsReporter()).build();
        sender = newSender(messageMaxBytes);
        converter = new ThriftSpanConverter();
    }

    @After
    public void tearDown() throws Exception {
        sender.close();
        reporter.close();
    }

    @Test
    public void testAppendSpanTooLarge() throws Exception {
        Span jaegerSpan = (Span) tracer.buildSpan("raza").start();
        String msg = "";
        for (int i = 0; i < 1001; i++) {
            msg += ".";
        }

        jaegerSpan.log(msg, new Object());
        com.twitter.zipkin.thriftjava.Span span = ThriftSpanConverter.convertSpan(jaegerSpan);
        try {
            sender.append(span);
        } catch (SenderException e) {
            assertEquals(e.getDroppedSpanCount(), 1);
        }
    }

    @Test
    public void testAppend() throws Exception {
        // find size of the initial span
        AutoExpandingBufferWriteTransport memoryTransport = new AutoExpandingBufferWriteTransport(messageMaxBytes,
                2);
        com.twitter.zipkin.thriftjava.Span span = ThriftSpanConverter
                .convertSpan((Span) tracer.buildSpan("raza").start());

        int expectedNumSpans = 11;
        List<byte[]> spansToSend = new ArrayList(expectedNumSpans);
        for (int i = 0; i < expectedNumSpans; i++)
            spansToSend.add(new ThriftSpanEncoder().encode(sender.backFillHostOnAnnotations(span)));

        // create a sender thats a multiple of the span size (accounting for span overhead)
        // this allows us to test the boundary conditions of writing spans.
        int messageMaxBytes = sender.delegate.messageSizeInBytes(spansToSend);
        sender.close();
        sender = newSender(messageMaxBytes);

        // add enough spans to be under buffer limit
        for (int i = 0; i < expectedNumSpans - 1; i++) {
            assertEquals(0, sender.append(span));
        }

        // add a span that overflows the limit to hit the last branch
        int result = sender.append(span);
        assertEquals(expectedNumSpans, result);
    }

    @Test
    public void testFlushSendsSpan() throws Exception {
        Span expectedSpan = (Span) tracer.buildSpan("raza").start();
        com.twitter.zipkin.thriftjava.Span span = ThriftSpanConverter.convertSpan(expectedSpan);

        assertEquals(0, sender.append(span));
        assertEquals(1, sender.flush());

        List<List<zipkin.Span>> traces = zipkinRule.getTraces();
        assertEquals(traces.size(), 1);
        assertEquals(traces.get(0).size(), 1);

        zipkin.Span actualSpan = traces.get(0).get(0);
        SpanContext context = expectedSpan.context();

        assertEquals(context.getTraceID(), actualSpan.traceId);
        assertEquals(context.getSpanID(), actualSpan.id);
        assertEquals(context.getParentID(), (long) actualSpan.parentId);
        assertEquals(expectedSpan.getOperationName(), actualSpan.name);
        for (BinaryAnnotation binaryAnnotation : actualSpan.binaryAnnotations) {
            assertEquals(tracer.getServiceName(), binaryAnnotation.endpoint.serviceName);
        }
        for (Annotation annotation : actualSpan.annotations) {
            assertEquals(tracer.getServiceName(), annotation.endpoint.serviceName);
        }
    }

    private ZipkinSender newSender(int messageMaxBytes) {
        return ZipkinSender.create(URLConnectionSender.builder().messageMaxBytes(messageMaxBytes)
                .endpoint(zipkinRule.httpUrl() + "/api/v1/spans").build());
    }
}