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GeneralSnapshotTests.java
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GeneralSnapshotTests.java
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/*******************************************************************************
* Copyright (c) 2010,2023 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Andrew Johnson - test class specific name for Strings etc.
*******************************************************************************/
package org.eclipse.mat.tests.snapshot;
import static org.eclipse.mat.tests.collect.ExtractCollectionEntriesBase.matchesPattern;
import static org.hamcrest.CoreMatchers.anyOf;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.CoreMatchers.either;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.greaterThanOrEqualTo;
import static org.hamcrest.Matchers.lessThan;
import static org.hamcrest.collection.IsEmptyCollection.emptyCollectionOf;
import static org.hamcrest.core.IsInstanceOf.instanceOf;
import static org.hamcrest.core.IsNull.nullValue;
import static org.hamcrest.number.OrderingComparison.lessThanOrEqualTo;
import static org.hamcrest.collection.IsArrayWithSize.arrayWithSize;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assume.assumeNotNull;
import static org.junit.Assume.assumeThat;
import static org.junit.Assume.assumeTrue;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Serializable;
import java.nio.charset.Charset;
import java.nio.charset.IllegalCharsetNameException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Stack;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.mat.SnapshotException;
import org.eclipse.mat.collect.SetInt;
import org.eclipse.mat.internal.snapshot.SnapshotQueryContext;
import org.eclipse.mat.query.IResult;
import org.eclipse.mat.query.IResultTable;
import org.eclipse.mat.query.IResultTree;
import org.eclipse.mat.query.ISelectionProvider;
import org.eclipse.mat.query.registry.QueryObjectLink;
import org.eclipse.mat.query.results.CompositeResult;
import org.eclipse.mat.query.results.DisplayFileResult;
import org.eclipse.mat.snapshot.ISnapshot;
import org.eclipse.mat.snapshot.SnapshotFactory;
import org.eclipse.mat.snapshot.SnapshotInfo;
import org.eclipse.mat.snapshot.UnreachableObjectsHistogram;
import org.eclipse.mat.snapshot.model.GCRootInfo;
import org.eclipse.mat.snapshot.model.GCRootInfo.Type;
import org.eclipse.mat.snapshot.model.IClass;
import org.eclipse.mat.snapshot.model.IClassLoader;
import org.eclipse.mat.snapshot.model.IObject;
import org.eclipse.mat.snapshot.model.IStackFrame;
import org.eclipse.mat.snapshot.model.IThreadStack;
import org.eclipse.mat.snapshot.query.SnapshotQuery;
import org.eclipse.mat.tests.TestSnapshots;
import org.eclipse.mat.util.IProgressListener;
import org.eclipse.mat.util.VoidProgressListener;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ErrorCollector;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.AfterParam;
import org.junit.runners.Parameterized.Parameters;
@RunWith(value = Parameterized.class)
public class GeneralSnapshotTests
{
enum Methods {
NONE,
FRAMES_ONLY,
RUNNING_METHODS,
ALL_METHODS
}
final Methods hasMethods;
enum Stacks {
NONE,
FRAMES,
FRAMES_AND_OBJECTS
};
final Stacks stackInfo;
@Parameters(name="{index}: Snapshot={0} options={1} methods={2}")
public static Collection<Object[]> data()
{
return Arrays.asList(new Object[][] {
{TestSnapshots.SUN_JDK6_32BIT, Stacks.NONE, null},
{TestSnapshots.SUN_JDK5_64BIT, Stacks.NONE, null},
{TestSnapshots.SUN_JDK6_18_32BIT, Stacks.FRAMES_AND_OBJECTS, null},
{TestSnapshots.SUN_JDK6_18_64BIT, Stacks.FRAMES_AND_OBJECTS, null},
{TestSnapshots.SUN_JDK5_13_32BIT, Stacks.NONE, null},
{TestSnapshots.IBM_JDK6_32BIT_HEAP, Stacks.NONE, null},
{TestSnapshots.IBM_JDK6_32BIT_JAVA, Stacks.FRAMES, null},
{TestSnapshots.IBM_JDK6_32BIT_HEAP_AND_JAVA, Stacks.FRAMES, null},
{TestSnapshots.IBM_JDK6_32BIT_SYSTEM, Stacks.FRAMES_AND_OBJECTS, null},
{TestSnapshots.IBM_JDK6_32BIT_SYSTEM, Stacks.FRAMES_AND_OBJECTS, Methods.ALL_METHODS},
{TestSnapshots.IBM_JDK6_32BIT_SYSTEM, Stacks.FRAMES_AND_OBJECTS, Methods.RUNNING_METHODS},
{TestSnapshots.IBM_JDK6_32BIT_SYSTEM, Stacks.FRAMES_AND_OBJECTS, Methods.FRAMES_ONLY},
{TestSnapshots.IBM_JDK6_32BIT_SYSTEM, Stacks.FRAMES_AND_OBJECTS, Methods.NONE},
{TestSnapshots.IBM_JDK142_32BIT_HEAP, Stacks.NONE, null},
{TestSnapshots.IBM_JDK142_32BIT_JAVA, Stacks.FRAMES, null},
{TestSnapshots.IBM_JDK142_32BIT_HEAP_AND_JAVA, TestSnapshots.DTFJreadJavacore142 ? Stacks.FRAMES : Stacks.NONE, null},
{TestSnapshots.IBM_JDK142_32BIT_SYSTEM, Stacks.FRAMES, null},
{TestSnapshots.ORACLE_JDK7_21_64BIT, Stacks.FRAMES_AND_OBJECTS, null},
{TestSnapshots.ORACLE_JDK8_05_64BIT, Stacks.FRAMES_AND_OBJECTS, null},
{TestSnapshots.ORACLE_JDK9_01_64BIT, Stacks.FRAMES_AND_OBJECTS, null},
{TestSnapshots.ADOPTOPENJDK_HOTSPOT_JDK11_0_4_11_64BIT, Stacks.FRAMES_AND_OBJECTS, null},
{TestSnapshots.ADOPTOPENJDK_HOTSPOT_JDK11_0_4_11_64BIT, Stacks.FRAMES_AND_OBJECTS, Methods.RUNNING_METHODS},
{TestSnapshots.ADOPTOPENJDK_HOTSPOT_JDK11_0_4_11_64BIT, Stacks.FRAMES_AND_OBJECTS, Methods.FRAMES_ONLY},
{TestSnapshots.ADOPTOPENJDK_HOTSPOT_JDK11_0_4_11_64BIT, Stacks.FRAMES_AND_OBJECTS, Methods.NONE},
});
}
public GeneralSnapshotTests(String snapshotname, Stacks s, Methods m)
{
if (m == Methods.ALL_METHODS) {
snapshot = snapshot2(snapshotname, "all");
hasMethods = Methods.ALL_METHODS;
}
else if (m == Methods.RUNNING_METHODS) {
snapshot = snapshot2(snapshotname, "running");
hasMethods = Methods.RUNNING_METHODS;
}
else if (m == Methods.FRAMES_ONLY) {
snapshot = snapshot2(snapshotname, "frames");
hasMethods = Methods.FRAMES_ONLY;
}
else if (m == Methods.NONE) {
snapshot = snapshot2(snapshotname, "none");
hasMethods = Methods.NONE;
}
else
{
snapshot = TestSnapshots.getSnapshot(snapshotname, false);
hasMethods = Methods.NONE;
}
stackInfo = s;
}
@AfterParam
public static void cleanUp(String snapshotname, Stacks s, Methods m)
{
String snapshotname2;
if (m == Methods.ALL_METHODS) {
snapshotname2 = snapshotname + ";#all";
}
else if (m == Methods.RUNNING_METHODS) {
snapshotname2 = snapshotname + ";#running";
}
else if (m == Methods.FRAMES_ONLY) {
snapshotname2 = snapshotname + ";#frames";
}
else if (m == Methods.NONE) {
snapshotname2 = snapshotname + ";#none";
} else {
return;
}
// These snapshots are just used for this test, so free them now
if (!TestSnapshots.freeSnapshot(snapshotname2))
{
System.out.println("Unable to dispose of snapshot "+snapshotname2);
}
}
/**
* Create a snapshot with the methods as classes option
*/
public ISnapshot snapshot2(String snapshotname, String includeMethods)
{
final String key = "methodsAsClasses";
final String dtfjPlugin = "org.eclipse.mat.dtfj";
IEclipsePreferences preferences = InstanceScope.INSTANCE.getNode(dtfjPlugin);
String prev = preferences.get(key, null);
preferences.put(key, includeMethods);
final String hprofPlugin = "org.eclipse.mat.hprof";
IEclipsePreferences preferences2 = InstanceScope.INSTANCE.getNode(hprofPlugin);
String prev2 = preferences2.get(key, null);
preferences2.put(key, includeMethods);
try {
// Tag the snapshot name so we don't end up with the wrong version
String snapshotname2 = snapshotname+";#"+includeMethods;
ISnapshot ret = TestSnapshots.getSnapshot(snapshotname2, false);
return ret;
} finally {
// Restore DTFJ
if (prev != null)
preferences.put(key, prev);
else
preferences.remove(key);
// Restore HPROF
if (prev2 != null)
preferences2.put(key, prev2);
else
preferences2.remove(key);
}
}
final ISnapshot snapshot;
@Test
public void stacks1() throws SnapshotException
{
int frames = 0;
int foundTop = 0;
int foundNotTop = 0;
SetInt objs = new SetInt();
Collection<IClass>tClasses = snapshot.getClassesByName("java.lang.Thread", true);
if (tClasses != null) for (IClass thrdcls : tClasses)
{
for (int o : thrdcls.getObjectIds())
{
objs.add(o);
}
}
/*
* PHD+javacore sometimes doesn't mark javacore threads as type Thread as
* javacore thread id is not a real object id.
*/
for (int o : snapshot.getGCRoots())
{
for (GCRootInfo g : snapshot.getGCRootInfo(o)) {
if (g.getType() == Type.THREAD_OBJ) {
objs.add(o);
}
}
}
for (int o : objs.toArray())
{
IThreadStack stk = snapshot.getThreadStack(o);
if (stk != null)
{
int i = 0;
for (IStackFrame frm : stk.getStackFrames())
{
int os[] = frm.getLocalObjectsIds();
if (os != null)
{
if (i == 0)
foundTop += os.length;
else
foundNotTop += os.length;
}
++i;
++frames;
}
}
}
// If there were some frames, and some frames had some objects
// then a topmost frame should have some objects
if (frames > 0 && foundNotTop > 0)
{
assertTrue("Expected some objects on top of stack", foundTop > 0);
}
if (this.stackInfo != Stacks.NONE)
{
assertTrue(frames > 0);
if (this.stackInfo == Stacks.FRAMES_AND_OBJECTS)
assertTrue(foundNotTop > 0 || foundTop > 0);
}
}
@Test
public void totalClasses() throws SnapshotException
{
int nc = snapshot.getClasses().size();
int n = snapshot.getSnapshotInfo().getNumberOfClasses();
assertEquals("Total classes", n, nc);
}
@Test
public void totalObjects() throws SnapshotException
{
int no = 0;
for (IClass cls : snapshot.getClasses())
{
no += cls.getNumberOfObjects();
}
int n = snapshot.getSnapshotInfo().getNumberOfObjects();
assertEquals("Total objects", n, no);
}
@Test
public void totalHeapSize() throws SnapshotException
{
long total = 0;
for (IClass cls : snapshot.getClasses())
{
total += snapshot.getHeapSize(cls.getObjectIds());
}
long n = snapshot.getSnapshotInfo().getUsedHeapSize();
assertEquals("Total heap size", n, total);
}
@Test
public void objectSizes() throws SnapshotException
{
long total = 0;
for (IClass cls : snapshot.getClasses())
{
long prev = -1;
for (int o : cls.getObjectIds())
{
IObject obj = snapshot.getObject(o);
long n = obj.getUsedHeapSize();
long n2 = snapshot.getHeapSize(o);
if (n != n2)
{
assertEquals("snapshot object heap size / object heap size "+obj, n, n2);
}
total += n;
if (prev >= 0)
{
if (prev != n && !cls.isArrayType() && !(obj instanceof IClass))
{
// This might not be a problem as variable sized plain objects
// are now permitted using the array index to record the alternative sizes.
// However, the current dumps don't appear to have them, so test for it here.
// Future dumps may make this test fail.
assertEquals("Variable size plain objects " + cls + " " + obj, prev, n);
}
}
else if (!(obj instanceof IClass))
{
// IClass objects are variably sized, so don't track those
prev = n;
}
assertEquals("All instance of a class must be of that type", cls, obj.getClazz());
}
}
long n = snapshot.getSnapshotInfo().getUsedHeapSize();
assertEquals("Total heap size", n, total);
}
@Test
public void topComponents() throws SnapshotException
{
SnapshotQuery query = SnapshotQuery.lookup("component_report_top", snapshot);
query.setArgument("aggressive", true);
IResult result = query.execute(new CheckedProgressListener(collector));
assertTrue(result != null);
}
@Test
public void topReferenceLeak() throws SnapshotException
{
SnapshotQuery query = SnapshotQuery.parse("reference_leak java.lang.ref.WeakReference -include_subclasses -maxpaths 10 -factor 0.2", snapshot);
IResult result = query.execute(new CheckedProgressListener(collector));
assertTrue(result != null);
if (result instanceof CompositeResult)
{
CompositeResult r = (CompositeResult)result;
// Check each of the subresults
for (CompositeResult.Entry e : r.getResultEntries())
{
IResult r2 = e.getResult();
assertNotNull(r2);
// Check the trees have some selected rows and some are expanded
if (r2 instanceof IResultTree)
{
assertNotNull(e.getName());
IResultTree rt = (IResultTree)r2;
assertThat(rt.getElements().size(), greaterThan(0));
int selected = 0;
int expanded = 0;
for (Object o : rt.getElements())
{
if (rt instanceof ISelectionProvider)
{
ISelectionProvider ss = (ISelectionProvider)rt;
if (ss.isSelected(o))
++selected;
if (ss.isExpanded(o))
++expanded;
}
while (rt.hasChildren(o))
{
// Has children, but zero of them?
if (rt.getChildren(o).size() == 0)
break;
// Just search the first entry each time
o = rt.getChildren(o).get(0);
if (rt instanceof ISelectionProvider)
{
ISelectionProvider ss = (ISelectionProvider)rt;
if (ss.isSelected(o))
++selected;
if (ss.isExpanded(o))
++expanded;
}
}
}
assertThat("selected "+e.getName(), selected, greaterThan(0));
assertThat("expanded "+e.getName(), expanded, greaterThan(0));
}
}
}
}
@Test
public void testMethods() throws SnapshotException
{
int methods = 0;
int methodsWithObjects = 0;
for (IClass cls : snapshot.getClasses())
{
if (cls.getName().contains("(") || cls.getName().equals("<stack frame>"))
{
++methods;
if (cls.getObjectIds().length > 0)
++methodsWithObjects;
}
}
if (hasMethods == Methods.ALL_METHODS)
{
assertTrue(methods > 0);
assertTrue(methods > methodsWithObjects);
}
else if (hasMethods == Methods.RUNNING_METHODS)
{
assertTrue(methods > 0);
assertEquals(methods, methodsWithObjects);
}
else if (hasMethods == Methods.FRAMES_ONLY)
{
assertEquals(1, methods);
assertThat(methodsWithObjects, greaterThan(0));
}
else
{
assertEquals(0, methodsWithObjects);
assertEquals(0, methods);
}
}
@Test
public void testClassLoaders() throws SnapshotException
{
assertThat(snapshot.getSnapshotInfo().getNumberOfClassLoaders(), greaterThan(1));
}
@Test
public void testRegressionReport() throws SnapshotException, IOException
{
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.tests:regression", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
}
@Test
public void testPerformanceReport() throws SnapshotException, IOException
{
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.tests:performance", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
}
@Test
public void testLeakSuspectsReport() throws SnapshotException, IOException
{
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:suspects", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
}
@Test
public void testOverviewReport() throws SnapshotException, IOException
{
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:overview", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
// See if the zip exists
String prefix = snapshot.getSnapshotInfo().getPrefix();
// Remove dot
prefix = prefix.substring(0, prefix.length() - 1);
File zipf = new File(prefix + "_System_Overview.zip");
assertThat(zipf.toString(), zipf.length(), greaterThan(100L));
}
@Test
public void testLeakSuspects2Report1() throws SnapshotException, IOException
{
assumeThat(snapshot.getSnapshotInfo().getProperty("$heapFormat"), not(equalTo("DTFJ-PHD")));
assumeThat(snapshot.getSnapshotInfo().getProperty("$heapFormat"), not(equalTo("DTFJ-Javacore")));
ISnapshot snapshot2 = TestSnapshots.getSnapshot(TestSnapshots.ORACLE_JDK7_21_64BIT, true);
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:suspects2 -params \"baseline=" + snapshot2.getSnapshotInfo().getPath()
+ "\"", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
SnapshotFactory.dispose(snapshot2);
}
@Test
public void testLeakSuspects2Report2() throws SnapshotException, IOException
{
assumeThat(snapshot.getSnapshotInfo().getProperty("$heapFormat"), not(equalTo("DTFJ-PHD")));
assumeThat(snapshot.getSnapshotInfo().getProperty("$heapFormat"), not(equalTo("DTFJ-Javacore")));
ISnapshot snapshot2 = TestSnapshots.getSnapshot(TestSnapshots.ORACLE_JDK7_21_64BIT, true);
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:suspects2 -params \"baseline=" + snapshot2.getSnapshotInfo().getPath()
+ "\"", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
SnapshotFactory.dispose(snapshot2);
checkHTMLResult(t);
}
@Test
public void testLeakSuspects2Report3() throws SnapshotException, IOException
{
assumeThat(snapshot.getSnapshotInfo().getProperty("$heapFormat"), not(equalTo("DTFJ-PHD")));
assumeThat(snapshot.getSnapshotInfo().getProperty("$heapFormat"), not(equalTo("DTFJ-Javacore")));
ISnapshot snapshot2 = TestSnapshots.getSnapshot(TestSnapshots.ORACLE_JDK7_21_64BIT, true);
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:suspects2 -params \"baseline=" + snapshot2.getSnapshotInfo().getPath()
+ "\"", snapshot);
SnapshotFactory.dispose(snapshot2);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
}
/**
* See if a report with a new name is created if the old one is not writable.
* Bug 55835
* @throws SnapshotException
* @throws IOException
*/
@Test
public void testOverviewReportRename() throws SnapshotException, IOException
{
// Lock the normal output file
String prefix = snapshot.getSnapshotInfo().getPrefix();
// Remove dot
prefix = prefix.substring(0, prefix.length() - 1);
File out1 = new File(prefix + "_System_Overview.zip");
FileOutputStream fos = new FileOutputStream(out1);
//readonly seems to be sufficient for this test
//FileLock lock = fos.getChannel().lock();
try
{
// Charset doesn't really matter
fos.write("Testing".getBytes(Charset.defaultCharset()));
assertThat(out1.toString(), out1.setReadOnly(), equalTo(true));
/*
* Not actually a need to keep the file open as only prevents
* delete on Windows.
*/
// The new output file
File out2 = new File(prefix + "_System_Overview_1.zip");
assertThat(out2.toString(), out2.exists(), equalTo(false));
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:overview", snapshot);
try
{
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
// check the new zipped report file exists
assertThat(out2.toString(), out2.exists(), equalTo(true));
assertThat(out2.toString(), out2.length(), greaterThan(100L));
assertThat(out2.toString(), out2.delete(), equalTo(true));
}
finally
{
if (out2.exists() && !out2.delete())
System.out.println("unable to delete "+out2);
}
//lock.close();
fos.close();
assertThat(out1.toString(), out1.delete(), equalTo(true));
}
finally
{
//lock.close();
fos.close();
if (out1.exists() && !out1.delete())
System.out.println("unable to delete "+out1);
}
}
/**
* See if a new file is not created if the old file is not writable,
* but contains the same contents as the new file.
* Bug 558353
* @throws SnapshotException
* @throws IOException
*/
@Test
public void testOverviewReportRename2() throws SnapshotException, IOException
{
String prefix = snapshot.getSnapshotInfo().getPrefix();
// Remove dot
prefix = prefix.substring(0, prefix.length() - 1);
File out1 = new File(prefix + "_System_Overview.zip");
if (out1.exists())
assertThat(out1.toString(), out1.delete(), equalTo(true));
// The new output file
File out2 = new File(prefix + "_System_Overview_1.zip");
if (out2.exists())
assertThat(out2.toString(), out2.delete(), equalTo(true));
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:overview", snapshot);
try
{
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
assertThat(out1.toString(), out1.exists(), equalTo(true));
assertThat(out1.toString(), out1.length(), greaterThan(100L));
assertThat(out2.toString(), out2.exists(), equalTo(false));
// Lock the usual output file
assertThat(out1.toString(), out1.setReadOnly(), equalTo(true));
FileInputStream fis = new FileInputStream(out1);
//readonly seems to be sufficient for this test
//FileLock lock = fis.getChannel().lock(0, Long.MAX_VALUE, true);
long mdate = out1.lastModified();
long len1 = out1.length();
try
{
query = SnapshotQuery.parse("default_report org.eclipse.mat.api:overview", snapshot);
t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
assertThat(out1.toString(), out1.exists(), equalTo(true));
assertThat(out1.length(), equalTo(len1));
long mdate2 = out1.lastModified();
// Modification date should not change as the file should not have been rewritten
assertThat(out1.toString(), mdate2, equalTo(mdate));
// but a new file should not have been created either
assertThat(out2.toString(), out2.exists(), equalTo(false));
}
finally
{
if (out2.exists() && !out2.delete())
System.out.println("unable to delete "+out2);
//lock.release();
fis.close();
}
assertThat(out1.toString(), out1.delete(), equalTo(true));
}
finally
{
if (out1.exists() && !out1.delete())
System.out.println("unable to delete "+out1);
}
}
@Test
public void testBug572227() throws SnapshotException, IOException
{
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:query -params command=histogram unzip=true format=txt", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
// See if the zip exists
String prefix = snapshot.getSnapshotInfo().getPrefix();
// Remove dot
prefix = prefix.substring(0, prefix.length() - 1);
File zipf = new File(prefix + "_Query.zip");
assertThat(zipf.toString(), zipf.length(), greaterThan(100L));
// See if the unzip worked
File unzipf = new File(prefix + "_Query");
assertThat("Expected unzipped directory", unzipf.exists());
// See if the text file is there and has contents
File unzippedDir = new File(unzipf, "pages");
File files[] = unzippedDir.listFiles(new FileFilter() {
@Override
public boolean accept(File pathname)
{
return pathname.isFile();
}
});
assertThat("Should be only one file", files, arrayWithSize(1));
File unzippedFile = new File(unzippedDir, "Query_Command2.txt");
assertThat(unzippedFile.toString(), unzippedFile.length(), greaterThan(100L));
}
@Test
public void testTopComponentsReport() throws SnapshotException, IOException
{
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.api:top_components", snapshot);
IResult t = query.execute(new CheckedProgressListener(collector));
assertNotNull(t);
checkHTMLResult(t);
}
@Rule
public ErrorCollector collector = new ErrorCollector();
static class CheckedProgressListener extends VoidProgressListener
{
ErrorCollector collector = new ErrorCollector();
public CheckedProgressListener(ErrorCollector collector)
{
this.collector = collector;
}
public void sendUserMessage(Severity severity, String message, Throwable exception)
{
if (exception != null && severity != Severity.INFO)
collector.addError(exception);
collector.checkThat(message, severity, lessThan(Severity.WARNING));
}
};
@Test
public void testAllQueriesReport() throws SnapshotException, IOException
{
IProgressListener checkListener = new CheckedProgressListener(collector);
SnapshotQuery query = SnapshotQuery.parse("default_report org.eclipse.mat.tests:all", snapshot);
IResult t = query.execute(checkListener);
assertNotNull(t);
checkHTMLResult(t);
}
public void checkHTMLResult(IResult r) throws IOException, SnapshotException
{
assertThat(r, instanceOf(DisplayFileResult.class));
if (r instanceof DisplayFileResult)
{
DisplayFileResult d = (DisplayFileResult)r;
File f = d.getFile();
checkHTMLFile(f);
}
}
/**
* Recursively check an HTML file.
* @param f
* @throws IOException
*/
public void checkHTMLFile(File f) throws IOException, SnapshotException
{
Map<File, String> seen = new HashMap<File, String>();
checkHTMLFile(f, seen);
seen.clear();
seen = null;
}
/**
* Recursively check an HTML file, avoiding going
* into files already seen.
* @param f
* @param seen Files already seen
* @throws IOException
*/
public void checkHTMLFile(File f, Map<File, String>seen) throws IOException, SnapshotException
{
checkHTMLFile(f, seen, null, null);
}
/**
* Recursively check an HTML file, avoiding going
* into files already seen.
* @param f
* @param seen Files already seen
* @param anchor the fragment for web page
* @param referrer the referrer, for better error messages
* @throws IOException
*/
public void checkHTMLFile(File f, Map<File, String>seen, String anchor, File referrer) throws IOException, SnapshotException
{
// canonical needed to avoid problems with ..
File canonfile = f.getCanonicalFile();
boolean seenFile = seen.containsKey(canonfile);
if (seenFile && (anchor == null || seen.containsKey(new File(canonfile.getPath() + "#" + anchor))))
return;
String s = seen.get(canonfile);
String encoding = System.getProperty("file.encoding", "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$
if (s == null)
{
FileInputStream fis = new FileInputStream(f);
try
{
if (!f.getName().endsWith(".html")
&& !f.getName().endsWith(".csv")
&& !f.getName().endsWith(".txt"))
{
// Not HTML or CSV or text
return;
}
try
{
// Convert to canonical form
encoding = Charset.forName(encoding).name();
}
catch (IllegalCharsetNameException e)
{
// Ignore
}
// Read the file into a string
try (InputStreamReader ir = new InputStreamReader(fis, encoding);)
{
char cbuf[] = new char[(int) f.length()];
int l = ir.read(cbuf);
s = new String(cbuf, 0, l);
// Cached version for anchor checks
seen.put(canonfile, s);
}
}
finally
{
fis.close();
}
}
// An empty result with a filename ending .csv might be forced into HTML type
if (f.getName().endsWith(".csv") && !s.startsWith("<!DOCTYPE HTML PUBLIC"))
{
checkCSV(f, s);
return;
}
if (f.getName().endsWith(".txt"))
{
checkTXT(f, s);
return;
}
/*
* All these checks are approximate and would be confused
* by false tags in attribute value string etc.
*/
if (anchor != null)
{
if (anchor.length() > 0)
{
// The fragment should exist as an id or name
Pattern p = Pattern.compile(" (id|name)=\"" + Pattern.quote(anchor) + "\"");
Matcher m = p.matcher(s);
String v;
int id = 0;
int name = 0;
while (m.find())
{
if ("id".equals(m.group(1)))
++id;
else if ("name".equals(m.group(1)))
++name;
}
if (id == 0 && name > 0)
id = 1;
assertThat(f + " from " + referrer + " Expected anchor "+ anchor + " to occur once: " + s, id, equalTo(1));
}
seen.put(new File(canonfile.getPath() + "#" + anchor), s);
if (seenFile)
{
return;
}
}
// Some basic checks
assertThat(f + " Expected charset", s, containsString("content=\"text/html;charset=" + encoding + "\""));
assertThat(f + " Possible double escaping <", s, not(containsString("&lt;")));
assertThat(f + " Possible double escaping &", s, not(containsString("&amp;")));
/*
* Rough test for bad tag - might indicate unescaped '<'.
* Find a less-than sign
* Negative lookahead for:
* optional / or !
* series of letters
* then optional digits
* ending with a space or greater-than
* or !DOCTYPE
* then match all until next space or greater-than
* We normally have lower case tags and no self-closed tags.
*/
Pattern p = Pattern.compile("<(?!(/?[a-z]+[0-9]*)[ >]|!DOCTYPE )[^ >]*");
Matcher m = p.matcher(s);
String v;
if (m.find())
{
v = m.group(0);
}
else
{
v = null;
}
assertThat("Bad tag in "+f, v, equalTo(null));
/*
* Rough test for bad entity or unescaped ampersand.
* Negative lookahead for
* entity name followed by semicolon
* entity number preceded by # followed by semicolon
*/
p = Pattern.compile("&(?!([a-z]+;)|(#[0-9]+;))[^a-z#]+");
m = p.matcher(s);
if (m.find())
{
v = m.group(0);
}
else
{
v = null;
}
assertThat("Bad entity in "+f, v, equalTo(null));
/*
* Check for alt text for images.
*/
p = Pattern.compile("<img (?![^>]*alt)[^>]*>");
m = p.matcher(s);
if (m.find())
{
v = m.group(0);
}
else
{
v = null;
}
assertThat("No alt for img in "+f, v, equalTo(null));
/*
* Check for alt text for areas.
*/
p = Pattern.compile("<area (?![^>]*alt)[^>]*>");
m = p.matcher(s);
if (m.find())
{
v = m.group(0);
}
else
{
v = null;
}
assertThat("No alt for area in "+f, v, equalTo(null));
/*
* Check for id attribute in elements
*/
p = Pattern.compile("<([a-zA-Z][a-zA-Z0-9]+) id=\"([^\"]*)\"");
m = p.matcher(s);
while (m.find())
{
String elem = m.group(1);
v = m.group(2);
assertThat("Invalid id in "+f+" for "+elem, v, matchesPattern("[a-zA-Z][a-zA-Z0-9:._-]+"));
}
/*
* Rough check for nesting of tags.
*/
Stack<String> stk = new Stack<String>();
Stack<Integer> stki = new Stack<Integer>();
// Matches tags
p = Pattern.compile("</?[a-zA-Z]+[1-6]?");
m = p.matcher(s);
while (m.find())
{
String tag = m.group().substring(1);
if (tag.startsWith("/"))
{
// Closing tag
assertThat("Stack for "+tag, stk.size(), greaterThan(0));
tag = tag.substring(1);
String tag2 = stk.pop();
int si = stki.pop();
if (tag2.equals("p") && !tag.equals("a") && !tag.equals("p"))
{