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products/Sources/formale Sprachen/Java/Openjdk/test/jdk/javax/script/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 3 kB

Quelle Test5.java Sprache: JAVA

/*
* Copyright (c) 2005, 2016, 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.
*
* 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.
*/

/*
* @test
* @bug 6249843 6705893
* @summary Tests engine, global scopes and scope hiding.
*/

import java.io.File;
import java.io.FileReader;
import java.io.Reader;
import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.SimpleBindings;
import javax.script.SimpleScriptContext;

public class Test5 {
        public static void main(String[] args) throws Exception {
                System.out.println("\nTest5\n");
                ScriptEngineManager m = new ScriptEngineManager();
                ScriptEngine engine = Helper.getJsEngine(m);
                if (engine == null) {
                    System.out.println("Warning: No js engine found; test vacuously passes.");
                    return;
                }
                Bindings g = new SimpleBindings();
                Bindings e = new SimpleBindings();
                g.put("key", "value in global");
                e.put("key", "value in engine");
                ScriptContext ctxt = new SimpleScriptContext();
                ctxt.setBindings(e, ScriptContext.ENGINE_SCOPE);
                System.out.println("engine scope only");
                e.put("count", new Integer(1));

                try (Reader reader = new FileReader(
                    new File(System.getProperty("test.src", "."), "Test5.js"))) {
                    engine.eval(reader,ctxt);
                }

                System.out.println("both scopes");
                ctxt.setBindings(g, ScriptContext.GLOBAL_SCOPE);
                e.put("count", new Integer(2));
                try (Reader reader = new FileReader(
                    new File(System.getProperty("test.src", "."), "Test5.js"))) {
                    engine.eval(reader,ctxt);
                }
                System.out.println("only global");
                e.put("count", new Integer(3));
                ctxt.removeAttribute("key", ScriptContext.ENGINE_SCOPE);
                try (Reader reader = new FileReader(
                    new File(System.getProperty("test.src", "."), "Test5.js"))) {
                    engine.eval(reader,ctxt);
                }
        }
}

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