Mercurial > hg > release > thermostat-0.5
view vm-heap-analysis/command/src/test/java/com/redhat/thermostat/vm/heap/analysis/command/internal/FindRootCommandTest.java @ 929:ccac9bcabaa0
Update copyright year of source code
review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/005295.html
reviewed-by: vanaltj
author | Mario Torre <neugens.limasoftware@gmail.com> |
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date | Wed, 23 Jan 2013 16:49:27 +0100 |
parents | 9f569536d421 |
children |
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/* * Copyright 2012, 2013 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.vm.heap.analysis.command.internal; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import static org.mockito.Matchers.any; import static org.mockito.Matchers.same; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.when; import java.util.Collection; import java.util.Enumeration; import org.apache.commons.cli.Option; import org.apache.commons.cli.Options; import org.junit.After; import org.junit.Before; import org.junit.Ignore; import org.junit.Test; import org.mockito.stubbing.OngoingStubbing; import com.redhat.thermostat.common.cli.CommandException; import com.redhat.thermostat.common.cli.SimpleArguments; import com.redhat.thermostat.common.utils.OSGIUtils; import com.redhat.thermostat.storage.model.HeapInfo; import com.redhat.thermostat.test.TestCommandContextFactory; import com.redhat.thermostat.vm.heap.analysis.common.HeapDAO; import com.redhat.thermostat.vm.heap.analysis.common.HeapDump; import com.sun.tools.hat.internal.model.JavaClass; import com.sun.tools.hat.internal.model.JavaHeapObject; import com.sun.tools.hat.internal.model.Root; import com.sun.tools.hat.internal.model.Snapshot; public class FindRootCommandTest { private static final String HEAP_ID = "TEST_HEAP_ID"; private FindRootCommand cmd; private JavaHeapObject fooObj; private JavaHeapObject barObj; private JavaHeapObject bazObj; private JavaHeapObject bumObj; private JavaHeapObject beeObj; private HeapDAO dao; @Before public void setUp() { HeapDump heapDump = setupHeapDump(); setupDAO(heapDump); OSGIUtils serviceProvider = mock(OSGIUtils.class); when(serviceProvider.getServiceAllowNull(HeapDAO.class)).thenReturn(dao); cmd = new FindRootCommand(serviceProvider); } @After public void tearDown() { fooObj = null; barObj = null; bazObj = null; bumObj = null; beeObj = null; cmd = null; } @SuppressWarnings("rawtypes") private HeapDump setupHeapDump() { fooObj = createMockObject("FooType", "123"); barObj = createMockObject("BarType", "456"); bazObj = createMockObject("BazType", "789"); bumObj = createMockObject("BumType", "987"); beeObj = createMockObject("BeeType", "654"); // Setup referrer network. Enumeration fooRefs = createReferrerEnum(barObj); // The exception is thrown in circle-tests when we visit the foo object again. when(fooObj.getReferers()).thenReturn(fooRefs).thenThrow(new RuntimeException()); Enumeration barRefs = createReferrerEnum(bazObj, bumObj); when(barObj.getReferers()).thenReturn(barRefs); Enumeration bumRefs = createReferrerEnum(beeObj); when(bumObj.getReferers()).thenReturn(bumRefs); Enumeration emptyRefs = createReferrerEnum(); when(bazObj.getReferers()).thenReturn(emptyRefs); when(beeObj.getReferers()).thenReturn(emptyRefs); // Setup referrer descriptions. when(barObj.describeReferenceTo(same(fooObj), any(Snapshot.class))).thenReturn("field foo"); when(bazObj.describeReferenceTo(same(barObj), any(Snapshot.class))).thenReturn("field bar"); when(bumObj.describeReferenceTo(same(barObj), any(Snapshot.class))).thenReturn("field bar"); when(beeObj.describeReferenceTo(same(bumObj), any(Snapshot.class))).thenReturn("field bum"); // Setup roots. Root bazRoot = mock(Root.class); when(bazRoot.getDescription()).thenReturn("baz root"); when(bazObj.getRoot()).thenReturn(bazRoot); Root beeRoot = mock(Root.class); when(beeRoot.getDescription()).thenReturn("bee root"); when(beeObj.getRoot()).thenReturn(beeRoot); // Setup heap dump. HeapDump heapDump = mock(HeapDump.class); when(heapDump.findObject("foo")).thenReturn(fooObj); return heapDump; } private void setupDAO(HeapDump heapDump) { HeapInfo heapInfo = mock(HeapInfo.class); dao = mock(HeapDAO.class); when(dao.getHeapInfo(HEAP_ID)).thenReturn(heapInfo); when(dao.getHeapDump(heapInfo)).thenReturn(heapDump); } private JavaHeapObject createMockObject(String className, String id) { JavaClass cls = mock(JavaClass.class); when(cls.getName()).thenReturn(className); JavaHeapObject obj = mock(JavaHeapObject.class); when(obj.getIdString()).thenReturn(id); when(obj.getClazz()).thenReturn(cls); return obj; } @SuppressWarnings("rawtypes") private Enumeration createReferrerEnum(JavaHeapObject... objs) { Enumeration refs = mock(Enumeration.class); OngoingStubbing<Boolean> hasMoreElements = when(refs.hasMoreElements()); for (int i = 0; i < objs.length; i++) { hasMoreElements = hasMoreElements.thenReturn(true); } hasMoreElements.thenReturn(false); OngoingStubbing<Object> nextElement = when(refs.nextElement()); for (JavaHeapObject obj : objs) { nextElement = nextElement.thenReturn(obj); } nextElement.thenReturn(null); return refs; } @Test public void testName() { assertEquals("find-root", cmd.getName()); } @Test public void testDescAndUsage() { assertNotNull(cmd.getDescription()); assertNotNull(cmd.getUsage()); } @Ignore @Test public void testOptions() { String heapIdOption = "heapId"; String objectIdOption = "objectId"; String allOption = "all"; Options options = cmd.getOptions(); @SuppressWarnings("unchecked") Collection<Options> theOptions = options.getOptions(); assertEquals(3, theOptions.size()); assertTrue(options.hasOption(heapIdOption)); Option heapOption = options.getOption(heapIdOption); assertEquals("the ID of the heapdump to analyze", heapOption.getDescription()); assertTrue(heapOption.isRequired()); assertTrue(heapOption.hasArg()); assertTrue(options.hasOption(objectIdOption)); Option objectOption = options.getOption(objectIdOption); assertEquals("the ID of the object to query", objectOption.getDescription()); assertTrue(heapOption.isRequired()); assertTrue(heapOption.hasArg()); assertTrue(options.hasOption(allOption)); Option all = options.getOption(allOption); assertEquals("finds all paths to GC roots", all.getDescription()); assertFalse(all.isRequired()); assertFalse(all.hasArg()); } @Test public void testStorageRequired() { assertTrue(cmd.isStorageRequired()); } @Test public void testSimpleAllRootsSearch() throws CommandException { TestCommandContextFactory factory = new TestCommandContextFactory(); SimpleArguments args = new SimpleArguments(); args.addArgument("heapId", HEAP_ID); args.addArgument("objectId", "foo"); args.addArgument("all", "true"); cmd.run(factory.createContext(args)); String expected = "baz root -> BazType@789\n" + "\u2514field bar in BazType@789 -> BarType@456\n" + " \u2514field foo in BarType@456 -> FooType@123\n" + "\n" + "bee root -> BeeType@654\n" + "\u2514field bum in BeeType@654 -> BumType@987\n" + " \u2514field bar in BumType@987 -> BarType@456\n" + " \u2514field foo in BarType@456 -> FooType@123\n" + "\n"; assertEquals(expected, factory.getOutput()); } @Test public void testSimpleRootSearch() throws CommandException { TestCommandContextFactory factory = new TestCommandContextFactory(); SimpleArguments args = new SimpleArguments(); args.addArgument("heapId", HEAP_ID); args.addArgument("objectId", "foo"); cmd.run(factory.createContext(args)); String expected = "baz root -> BazType@789\n" + "\u2514field bar in BazType@789 -> BarType@456\n" + " \u2514field foo in BarType@456 -> FooType@123\n" + "\n"; assertEquals(expected, factory.getOutput()); } @Test public void testSearchWithoutRoot() throws CommandException { when(bazObj.getRoot()).thenReturn(null); when(beeObj.getRoot()).thenReturn(null); TestCommandContextFactory factory = new TestCommandContextFactory(); SimpleArguments args = new SimpleArguments(); args.addArgument("heapId", HEAP_ID); args.addArgument("objectId", "foo"); cmd.run(factory.createContext(args)); String expected = "No root found for: FooType@123\n"; assertEquals(expected, factory.getOutput()); } @Test public void testSearchWithoutRootWithCircle() throws CommandException { when(bazObj.getRoot()).thenReturn(null); @SuppressWarnings("rawtypes") Enumeration bazReferrers = createReferrerEnum(fooObj); when(bazObj.getReferers()).thenReturn(bazReferrers); when(beeObj.getRoot()).thenReturn(null); @SuppressWarnings("rawtypes") Enumeration beeReferrers = createReferrerEnum(fooObj); when(beeObj.getReferers()).thenReturn(beeReferrers); TestCommandContextFactory factory = new TestCommandContextFactory(); SimpleArguments args = new SimpleArguments(); args.addArgument("heapId", HEAP_ID); args.addArgument("objectId", "foo"); cmd.run(factory.createContext(args)); String expected = "No root found for: FooType@123\n"; assertEquals(expected, factory.getOutput()); } public void testHeapNotFound() throws CommandException { TestCommandContextFactory factory = new TestCommandContextFactory(); SimpleArguments args = new SimpleArguments(); args.addArgument("heapId", "fluff"); args.addArgument("objectId", "foo"); try { cmd.run(factory.createContext(args)); fail(); } catch (HeapNotFoundException ex) { assertEquals("Heap ID not found: fluff", ex.getMessage()); } } public void testObjectNotFound() throws CommandException { TestCommandContextFactory factory = new TestCommandContextFactory(); SimpleArguments args = new SimpleArguments(); args.addArgument("heapId", HEAP_ID); args.addArgument("objectId", "fluff"); try { cmd.run(factory.createContext(args)); fail(); } catch (ObjectNotFoundException ex) { assertEquals("Object not found: fluff", ex.getMessage()); } } }