| /* |
| * 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.test; |
| |
| import jdk.nashorn.api.scripting.NashornScriptEngineFactory; |
| import org.testng.annotations.Test; |
| |
| import javax.script.Bindings; |
| import javax.script.ScriptContext; |
| import javax.script.ScriptEngine; |
| import javax.script.ScriptException; |
| import javax.script.SimpleScriptContext; |
| |
| import static org.testng.Assert.assertEquals; |
| |
| /** |
| * Top-level lexical binding tests. |
| * |
| * @test |
| * @run testng jdk.nashorn.internal.runtime.test.LexicalBindingTest |
| */ |
| @SuppressWarnings("javadoc") |
| public class LexicalBindingTest { |
| |
| final static String LANGUAGE_ES6 = "--language=es6"; |
| final static int NUMBER_OF_CONTEXTS = 20; |
| final static int MEGAMORPHIC_LOOP_COUNT = 20; |
| |
| /** |
| * Test access to global var-declared variables for shared script classes with multiple globals. |
| */ |
| @Test |
| public static void megamorphicVarTest() throws ScriptException, InterruptedException { |
| final NashornScriptEngineFactory factory = new NashornScriptEngineFactory(); |
| final ScriptEngine e = factory.getScriptEngine(); |
| final ScriptContext[] contexts = new ScriptContext[NUMBER_OF_CONTEXTS]; |
| final String sharedScript = "foo"; |
| |
| |
| for (int i = 0; i < NUMBER_OF_CONTEXTS; i++) { |
| final ScriptContext context = contexts[i] = new SimpleScriptContext(); |
| final Bindings b = e.createBindings(); |
| context.setBindings(b, ScriptContext.ENGINE_SCOPE); |
| assertEquals(e.eval("var foo = '" + i + "';", context), null); |
| } |
| |
| for (int i = 0; i < NUMBER_OF_CONTEXTS; i++) { |
| final ScriptContext context = contexts[i]; |
| assertEquals(e.eval(sharedScript, context), String.valueOf(i)); |
| } |
| } |
| |
| /** |
| * Test access to global lexically declared variables for shared script classes with multiple globals. |
| */ |
| @Test |
| public static void megamorphicMultiGlobalLetTest() throws ScriptException, InterruptedException { |
| final NashornScriptEngineFactory factory = new NashornScriptEngineFactory(); |
| final ScriptEngine e = factory.getScriptEngine(LANGUAGE_ES6); |
| final ScriptContext[] contexts = new ScriptContext[NUMBER_OF_CONTEXTS]; |
| final String sharedScript = "foo"; |
| |
| |
| for (int i = 0; i < NUMBER_OF_CONTEXTS; i++) { |
| final ScriptContext context = contexts[i] = new SimpleScriptContext(); |
| final Bindings b = e.createBindings(); |
| context.setBindings(b, ScriptContext.ENGINE_SCOPE); |
| assertEquals(e.eval("let foo = '" + i + "';", context), null); |
| } |
| |
| for (int i = 0; i < NUMBER_OF_CONTEXTS; i++) { |
| final ScriptContext context = contexts[i]; |
| assertEquals(e.eval(sharedScript, context), String.valueOf(i)); |
| } |
| } |
| |
| |
| /** |
| * Test access to global lexically declared variables for shared script classes with single global. |
| */ |
| @Test |
| public static void megamorphicSingleGlobalLetTest() throws ScriptException, InterruptedException { |
| final NashornScriptEngineFactory factory = new NashornScriptEngineFactory(); |
| final ScriptEngine e = factory.getScriptEngine(LANGUAGE_ES6); |
| final String sharedGetterScript = "foo"; |
| final String sharedSetterScript = "foo = 1"; |
| |
| for (int i = 0; i < MEGAMORPHIC_LOOP_COUNT; i++) { |
| assertEquals(e.eval(sharedSetterScript), 1); |
| assertEquals(e.eval(sharedGetterScript), 1); |
| assertEquals(e.eval("delete foo; a" + i + " = 1; foo = " + i + ";"), i); |
| assertEquals(e.eval(sharedGetterScript), i); |
| } |
| |
| assertEquals(e.eval("let foo = 'foo';"), null); |
| assertEquals(e.eval(sharedGetterScript), "foo"); |
| assertEquals(e.eval(sharedSetterScript), 1); |
| assertEquals(e.eval(sharedGetterScript), 1); |
| assertEquals(e.eval("this.foo"), MEGAMORPHIC_LOOP_COUNT - 1); |
| } |
| |
| /** |
| * Test access to global lexically declared variables for shared script classes with single global. |
| */ |
| @Test |
| public static void megamorphicInheritedGlobalLetTest() throws ScriptException, InterruptedException { |
| final NashornScriptEngineFactory factory = new NashornScriptEngineFactory(); |
| final ScriptEngine e = factory.getScriptEngine(LANGUAGE_ES6); |
| final String sharedGetterScript = "foo"; |
| final String sharedSetterScript = "foo = 1"; |
| |
| for (int i = 0; i < MEGAMORPHIC_LOOP_COUNT; i++) { |
| assertEquals(e.eval(sharedSetterScript), 1); |
| assertEquals(e.eval(sharedGetterScript), 1); |
| assertEquals(e.eval("delete foo; a" + i + " = 1; Object.prototype.foo = " + i + ";"), i); |
| assertEquals(e.eval(sharedGetterScript), i); |
| } |
| |
| assertEquals(e.eval("let foo = 'foo';"), null); |
| assertEquals(e.eval(sharedGetterScript), "foo"); |
| assertEquals(e.eval(sharedSetterScript), 1); |
| assertEquals(e.eval(sharedGetterScript), 1); |
| assertEquals(e.eval("this.foo"), MEGAMORPHIC_LOOP_COUNT - 1); |
| } |
| |
| /** |
| * Test multi-threaded access to global lexically declared variables for shared script classes with multiple globals. |
| */ |
| @Test |
| public static void multiThreadedLetTest() throws ScriptException, InterruptedException { |
| final NashornScriptEngineFactory factory = new NashornScriptEngineFactory(); |
| final ScriptEngine e = factory.getScriptEngine(LANGUAGE_ES6); |
| final Bindings b = e.createBindings(); |
| final ScriptContext origContext = e.getContext(); |
| final ScriptContext newCtxt = new SimpleScriptContext(); |
| newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE); |
| final String sharedScript = "foo"; |
| |
| assertEquals(e.eval("let foo = 'original context';", origContext), null); |
| assertEquals(e.eval("let foo = 'new context';", newCtxt), null); |
| |
| final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000)); |
| final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000)); |
| t1.start(); |
| t2.start(); |
| t1.join(); |
| t2.join(); |
| |
| assertEquals(e.eval("foo = 'newer context';", newCtxt), "newer context"); |
| final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000)); |
| final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000)); |
| |
| t3.start(); |
| t4.start(); |
| t3.join(); |
| t4.join(); |
| |
| assertEquals(e.eval(sharedScript), "original context"); |
| assertEquals(e.eval(sharedScript, newCtxt), "newer context"); |
| } |
| |
| private static class ScriptRunner implements Runnable { |
| |
| final ScriptEngine engine; |
| final ScriptContext context; |
| final String source; |
| final Object expected; |
| final int iterations; |
| |
| ScriptRunner(final ScriptEngine engine, final ScriptContext context, final String source, final Object expected, final int iterations) { |
| this.engine = engine; |
| this.context = context; |
| this.source = source; |
| this.expected = expected; |
| this.iterations = iterations; |
| } |
| |
| @Override |
| public void run() { |
| try { |
| for (int i = 0; i < iterations; i++) { |
| assertEquals(engine.eval(source, context), expected); |
| } |
| } catch (final ScriptException se) { |
| throw new RuntimeException(se); |
| } |
| } |
| } |
| } |