| /* |
| * 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; |
| |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| import static org.hamcrest.CoreMatchers.containsString; |
| |
| import org.apache.htrace.HTraceConfiguration; |
| import org.apache.htrace.Span; |
| import org.apache.htrace.SpanReceiver; |
| import org.apache.htrace.Tracer; |
| import org.apache.htrace.TraceTree.SpansByParent; |
| import org.apache.htrace.TraceTree; |
| import org.apache.htrace.impl.AlwaysSampler; |
| import org.apache.htrace.impl.LocalFileSpanReceiver; |
| import org.apache.htrace.impl.POJOSpanReceiver; |
| import org.apache.htrace.impl.StandardOutSpanReceiver; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| |
| public class TestBadClient { |
| /** |
| * Test closing an outer scope when an inner one is still active. |
| */ |
| @Test |
| public void TestClosingOuterScope() throws Exception { |
| boolean gotException = false; |
| TraceScope outerScope = Trace.startSpan("outer", AlwaysSampler.INSTANCE); |
| TraceScope innerScope = Trace.startSpan("inner"); |
| try { |
| outerScope.close(); |
| } catch (RuntimeException e) { |
| assertThat(e.getMessage(), |
| containsString("You have probably forgotten to close or detach")); |
| gotException = true; |
| } |
| assertTrue("Expected to get exception because of improper " + |
| "scope closure.", gotException); |
| innerScope.close(); |
| } |
| |
| /** |
| * Test calling detach() two times on a scope object. |
| */ |
| @Test |
| public void TestDoubleDetach() throws Exception { |
| boolean gotException = false; |
| TraceScope myScope = Trace.startSpan("myScope", AlwaysSampler.INSTANCE); |
| myScope.detach(); |
| try { |
| myScope.detach(); |
| } catch (RuntimeException e) { |
| assertThat(e.getMessage(), |
| containsString("it has already been detached.")); |
| gotException = true; |
| } |
| assertTrue("Expected to get exception because of double TraceScope " + |
| "detach.", gotException); |
| } |
| |
| private static class SpanHolder { |
| Span span; |
| |
| void set(Span span) { |
| this.span = span; |
| } |
| } |
| |
| /** |
| * Test correctly passing spans between threads using detach(). |
| */ |
| @Test |
| public void TestPassingSpanBetweenThreads() throws Exception { |
| final SpanHolder spanHolder = new SpanHolder(); |
| Thread th = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| TraceScope workerScope = Trace.startSpan("workerSpan", |
| AlwaysSampler.INSTANCE); |
| spanHolder.set(workerScope.getSpan()); |
| workerScope.detach(); |
| } |
| }); |
| th.start(); |
| th.join(); |
| |
| // Create new scope whose parent is the worker thread's span. |
| TraceScope outermost = Trace.startSpan("outermost", spanHolder.span); |
| TraceScope nested = Trace.startSpan("nested"); |
| nested.close(); |
| outermost.close(); |
| // Create another span which also descends from the worker thread's span. |
| TraceScope nested2 = Trace.startSpan("nested2", spanHolder.span); |
| nested2.close(); |
| |
| // Close the worker thread's span. |
| spanHolder.span.stop(); |
| |
| // We can create another descendant, even though the worker thread's span |
| // has been stopped. |
| TraceScope lateChildScope = Trace.startSpan("lateChild", spanHolder.span); |
| lateChildScope.close(); |
| } |
| |
| /** |
| * Test trying to manually set our TraceScope's parent in a case where there |
| * is a currently active span. |
| */ |
| @Test |
| public void TestIncorrectStartSpan() throws Exception { |
| // Create new scope |
| TraceScope outermost = Trace.startSpan("outermost", |
| AlwaysSampler.INSTANCE); |
| // Create nested scope |
| TraceScope nested = Trace.startSpan("nested", outermost.getSpan()); |
| // Error |
| boolean gotException = false; |
| try { |
| TraceScope error = Trace.startSpan("error", outermost.getSpan()); |
| error.close(); |
| } catch (RuntimeException e) { |
| assertThat(e.getMessage(), |
| containsString("there is already a currentSpan")); |
| gotException = true; |
| } |
| assertTrue("Expected to get exception because of incorrect startSpan.", |
| gotException); |
| } |
| |
| @After |
| public void resetCurrentSpan() { |
| Tracer.getInstance().setCurrentSpan(null); |
| } |
| } |