| /* |
| * 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.io.File; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| import static org.hamcrest.CoreMatchers.containsString; |
| |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class TestBadClient { |
| @After |
| public void clearBadState() { |
| // Clear the bad trace state so that we don't disrupt other unit tests |
| // that run in this JVM. |
| Tracer.threadLocalScope.set(null); |
| } |
| |
| /** |
| * Test closing an outer scope when an inner one is still active. |
| */ |
| @Test |
| public void TestClosingOuterScope() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("TestClosingOuterScopeTracer"). |
| tracerPool(new TracerPool("TestClosingOuterScope")). |
| conf(HTraceConfiguration. |
| fromKeyValuePairs("sampler.classes", "AlwaysSampler")).build(); |
| boolean gotException = false; |
| TraceScope outerScope = tracer.newScope("outer"); |
| TraceScope innerScope = tracer.newScope("inner"); |
| try { |
| outerScope.close(); |
| } catch (RuntimeException e) { |
| assertThat(e.getMessage(), |
| containsString("it is not the current TraceScope")); |
| gotException = true; |
| } |
| assertTrue("Expected to get exception because of improper " + |
| "scope closure.", gotException); |
| innerScope.close(); |
| tracer.close(); |
| } |
| |
| /** |
| * Test calling detach() two times on a scope object. |
| */ |
| @Test |
| public void TestDoubleDetachIsCaught() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("TestDoubleDetach"). |
| tracerPool(new TracerPool("TestDoubleDetachIsCaught")). |
| conf(HTraceConfiguration. |
| fromKeyValuePairs("sampler.classes", "AlwaysSampler")).build(); |
| boolean gotException = false; |
| TraceScope myScope = tracer.newScope("myScope"); |
| myScope.detach(); |
| try { |
| myScope.detach(); |
| } catch (RuntimeException e) { |
| assertThat(e.getMessage(), |
| containsString("it is already detached.")); |
| gotException = true; |
| } |
| assertTrue("Expected to get exception because of double TraceScope " + |
| "detach.", gotException); |
| tracer.close(); |
| } |
| |
| /** |
| * Test calling detach() two times on a scope object. |
| */ |
| @Test |
| public void TestDoubleDetachOnNullScope() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("TestDoubleDetachOnNullScope"). |
| tracerPool(new TracerPool("TestDoubleDetachOnNullScope")). |
| conf(HTraceConfiguration. |
| fromKeyValuePairs("sampler.classes", "NeverSampler")).build(); |
| boolean gotException = false; |
| TraceScope myScope = tracer.newScope("myScope"); |
| myScope.detach(); |
| try { |
| myScope.detach(); |
| } catch (RuntimeException e) { |
| assertThat(e.getMessage(), |
| containsString("it is already detached.")); |
| gotException = true; |
| } |
| assertTrue("Expected to get exception because of double TraceScope " + |
| "detach on NullScope.", gotException); |
| tracer.close(); |
| } |
| |
| /** |
| * Test calling reattach() two times on a scope object. |
| */ |
| @Test |
| public void TestDoubleReattachIsCaught() throws Exception { |
| Tracer tracer = new Tracer.Builder(). |
| name("TestDoubleReattach"). |
| tracerPool(new TracerPool("TestDoubleReattachIsCaught")). |
| conf(HTraceConfiguration. |
| fromKeyValuePairs("sampler.classes", "AlwaysSampler")).build(); |
| boolean gotException = false; |
| TraceScope myScope = tracer.newScope("myScope"); |
| myScope.detach(); |
| myScope.reattach(); |
| try { |
| myScope.reattach(); |
| } catch (RuntimeException e) { |
| assertThat(e.getMessage(), |
| containsString("it is not detached.")); |
| gotException = true; |
| } |
| assertTrue("Expected to get exception because of double TraceScope " + |
| "reattach.", gotException); |
| tracer.close(); |
| } |
| |
| private static class ScopeHolder { |
| TraceScope scope; |
| |
| void set(TraceScope scope) { |
| this.scope = scope; |
| } |
| } |
| |
| /** |
| * Test correctly passing spans between threads using detach(). |
| */ |
| @Test |
| public void TestPassingSpanBetweenThreads() throws Exception { |
| final Tracer tracer = new Tracer.Builder(). |
| name("TestPassingSpanBetweenThreads"). |
| tracerPool(new TracerPool("TestPassingSpanBetweenThreads")). |
| conf(HTraceConfiguration. |
| fromKeyValuePairs("sampler.classes", "AlwaysSampler")).build(); |
| POJOSpanReceiver receiver = |
| new POJOSpanReceiver(HTraceConfiguration.EMPTY); |
| tracer.getTracerPool().addReceiver(receiver); |
| final ScopeHolder scopeHolder = new ScopeHolder(); |
| Thread th = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| TraceScope workerScope = tracer.newScope("workerSpan"); |
| workerScope.detach(); |
| scopeHolder.set(workerScope); |
| } |
| }); |
| th.start(); |
| th.join(); |
| TraceScope workerScope = scopeHolder.scope; |
| SpanId workerScopeId = workerScope.getSpan().getSpanId(); |
| |
| // Create new scope whose parent is the worker thread's span. |
| workerScope.reattach(); |
| TraceScope nested = tracer.newScope("nested"); |
| nested.close(); |
| // Create another span which also descends from the worker thread's span. |
| TraceScope nested2 = tracer.newScope("nested2"); |
| nested2.close(); |
| |
| // Close the worker thread's span. |
| workerScope.close(); |
| |
| // We can create another descendant, even though the worker thread's span |
| // has been stopped. |
| TraceScope lateChildScope = tracer.newScope("lateChild", workerScopeId); |
| lateChildScope.close(); |
| tracer.close(); |
| |
| TraceGraph traceGraph = new TraceGraph(receiver.getSpans()); |
| Collection<Span> rootSpans = |
| traceGraph.getSpansByParent().find(SpanId.INVALID); |
| Assert.assertEquals(1, rootSpans.size()); |
| Assert.assertEquals(workerScopeId, |
| rootSpans.iterator().next().getSpanId()); |
| Collection<Span> childSpans = |
| traceGraph.getSpansByParent().find(workerScopeId); |
| Assert.assertEquals(3, childSpans.size()); |
| } |
| } |