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/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.nashorn.internal.runtime;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static org.testng.Assert.fail;
import org.testng.annotations.Test;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.ScriptEngineManager;
import javax.script.SimpleScriptContext;
import jdk.nashorn.api.scripting.NashornScriptEngineFactory;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
/**
* @test
* @bug 8037378
* @summary Sanity tests for no persistence caching
* @run testng/othervm jdk.nashorn.internal.runtime.NoPersistenceCachingTest
*/
public class NoPersistenceCachingTest {
private ScriptEngine engine;
private ScriptContext context1, context2, context3;
private ByteArrayOutputStream stderr;
private PrintStream prevStderr;
@BeforeTest
public void setupTest() {
stderr = new ByteArrayOutputStream();
prevStderr = System.err;
System.setErr(new PrintStream(stderr));
NashornScriptEngineFactory nashornFactory = null;
ScriptEngineManager sm = new ScriptEngineManager();
for (ScriptEngineFactory fac : sm.getEngineFactories()) {
if (fac instanceof NashornScriptEngineFactory) {
nashornFactory = (NashornScriptEngineFactory) fac;
break;
}
}
if (nashornFactory == null) {
fail("Cannot find nashorn factory!");
}
String[] options = new String[]{"--log=compiler:finest"};
engine = nashornFactory.getScriptEngine(options);
context1 = engine.getContext();
context2 = new SimpleScriptContext();
context2.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
context3 = new SimpleScriptContext();
context3.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
}
@AfterTest
public void setErrTest() {
System.setErr(prevStderr);
}
public void runTest(int numberOfContext, String expectedOutputPattern,
int expectedPatternOccurrence) {
try {
switch (numberOfContext) {
case 2:
String scriptTwoContexts = "print('HelloTwoContexts')";
engine.eval(scriptTwoContexts, context1);
engine.eval(scriptTwoContexts, context2);
break;
case 3:
String scriptThreeContexts = "print('HelloThreeContexts')";
engine.eval(scriptThreeContexts, context1);
engine.eval(scriptThreeContexts, context2);
engine.eval(scriptThreeContexts, context3);
break;
}
} catch (final Exception se) {
se.printStackTrace();
fail(se.getMessage());
}
Pattern deoptimizing = Pattern.compile(expectedOutputPattern);
Matcher matcher = deoptimizing.matcher(stderr.toString());
int matches = 0;
while (matcher.find()) {
matches++;
}
if (matches != expectedPatternOccurrence) {
fail("Number of cache hit is not correct, expected: "
+ expectedPatternOccurrence + " and found: " + matches + "\n"
+ stderr);
}
stderr.reset();
}
private static String getCodeCachePattern() {
return ("\\[compiler\\]\\sCode\\scache\\shit\\sfor\\s<eval>\\savoiding\\srecompile.");
}
@Test
public void twoContextTest() {
runTest(2, getCodeCachePattern(), 1);
}
@Test
public void threeContextTest() {
runTest(3, getCodeCachePattern(), 2);
}
}
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