| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.htrace.core; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.htrace.core.TraceGraph.SpansByParent; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class TestHTrace { |
| @Test |
| public void TestTracerCreateAndClose() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("TestSimpleScope"). |
| tracerPool(new TracerPool("TestTracerCreateAndClose")). |
| conf(HTraceConfiguration.fromKeyValuePairs( |
| "sampler.classes", "AlwaysSampler")). |
| build(); |
| POJOSpanReceiver receiver = |
| new POJOSpanReceiver(HTraceConfiguration.EMPTY); |
| tracer.getTracerPool().addReceiver(receiver); |
| tracer.close(); |
| Assert.assertTrue(receiver.getSpans().isEmpty()); |
| } |
| |
| @Test |
| public void TestSimpleScope() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("TestSimpleScope"). |
| tracerPool(new TracerPool("TestSimpleScope")). |
| conf(HTraceConfiguration.fromKeyValuePairs( |
| "sampler.classes", "AlwaysSampler")). |
| build(); |
| POJOSpanReceiver receiver = |
| new POJOSpanReceiver(HTraceConfiguration.EMPTY); |
| tracer.getTracerPool().addReceiver(receiver); |
| TraceScope scope = tracer.newScope("Foo"); |
| scope.close(); |
| tracer.close(); |
| Assert.assertEquals(1, receiver.getSpans().size()); |
| Span span = receiver.getSpans().iterator().next(); |
| Assert.assertEquals(0, span.getParents().length); |
| } |
| |
| @Test |
| public void TestCreateSpans() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("TestCreateSpans"). |
| tracerPool(new TracerPool("TestCreateSpans")). |
| conf(HTraceConfiguration.fromKeyValuePairs( |
| "sampler.classes", "AlwaysSampler")). |
| build(); |
| POJOSpanReceiver receiver = |
| new POJOSpanReceiver(HTraceConfiguration.EMPTY); |
| tracer.getTracerPool().addReceiver(receiver); |
| TraceCreator traceCreator = new TraceCreator(tracer); |
| traceCreator.createSampleRpcTrace(); |
| traceCreator.createSimpleTrace(); |
| traceCreator.createThreadedTrace(); |
| tracer.close(); |
| TraceGraph traceGraph = new TraceGraph(receiver.getSpans()); |
| Collection<Span> roots = traceGraph.getSpansByParent().find(SpanId.INVALID); |
| Assert.assertTrue("Trace tree must have roots", !roots.isEmpty()); |
| Assert.assertEquals(3, roots.size()); |
| |
| Map<String, Span> descriptionToRootSpan = new HashMap<String, Span>(); |
| for (Span root : roots) { |
| descriptionToRootSpan.put(root.getDescription(), root); |
| } |
| |
| Assert.assertTrue(descriptionToRootSpan.keySet().contains( |
| TraceCreator.RPC_TRACE_ROOT)); |
| Assert.assertTrue(descriptionToRootSpan.keySet().contains( |
| TraceCreator.SIMPLE_TRACE_ROOT)); |
| Assert.assertTrue(descriptionToRootSpan.keySet().contains( |
| TraceCreator.THREADED_TRACE_ROOT)); |
| |
| SpansByParent spansByParentId = traceGraph.getSpansByParent(); |
| |
| Span rpcTraceRoot = descriptionToRootSpan.get(TraceCreator.RPC_TRACE_ROOT); |
| Assert.assertEquals(1, spansByParentId.find(rpcTraceRoot.getSpanId()).size()); |
| |
| Span rpcTraceChild1 = spansByParentId.find(rpcTraceRoot.getSpanId()) |
| .iterator().next(); |
| Assert.assertEquals(1, spansByParentId.find(rpcTraceChild1.getSpanId()).size()); |
| |
| Span rpcTraceChild2 = spansByParentId.find(rpcTraceChild1.getSpanId()) |
| .iterator().next(); |
| Assert.assertEquals(1, spansByParentId.find(rpcTraceChild2.getSpanId()).size()); |
| |
| Span rpcTraceChild3 = spansByParentId.find(rpcTraceChild2.getSpanId()) |
| .iterator().next(); |
| Assert.assertEquals(0, spansByParentId.find(rpcTraceChild3.getSpanId()).size()); |
| } |
| |
| @Test(timeout=60000) |
| public void testRootSpansHaveNonZeroSpanId() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("testRootSpansHaveNonZeroSpanId"). |
| tracerPool(new TracerPool("testRootSpansHaveNonZeroSpanId")). |
| conf(HTraceConfiguration.fromKeyValuePairs( |
| "sampler.classes", "AlwaysSampler")).build(); |
| TraceScope scope = tracer. |
| newScope("myRootSpan", new SpanId(100L, 200L)); |
| Assert.assertNotNull(scope); |
| Assert.assertEquals("myRootSpan", scope.getSpan().getDescription()); |
| Assert.assertTrue(scope.getSpan().getSpanId().isValid()); |
| Assert.assertEquals(100L, scope.getSpan().getSpanId().getHigh()); |
| Assert.assertNotEquals(0L, scope.getSpan().getSpanId().getLow()); |
| scope.close(); |
| } |
| } |