/*

 * Copyright (c) 2010, 2013, 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,

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 *

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package jdk.nashorn.internal.runtime;

import static jdk.nashorn.internal.runtime.Source.sourceFor;

import static org.testng.Assert.assertEquals;

import static org.testng.Assert.assertTrue;

import java.util.Map;

import jdk.nashorn.internal.objects.Global;

import jdk.nashorn.internal.runtime.options.Options;

import org.testng.annotations.Test;

/**

 * Basic Context API tests.

 *

 * @test

 * @run testng jdk.nashorn.internal.runtime.ContextTest

 */

public class ContextTest {

    // basic context eval test

    @Test

    public void evalTest() {

        final Options options = new Options("");

        final ErrorManager errors = new ErrorManager();

        final Context cx = new Context(options, errors, Thread.currentThread().getContextClassLoader());

        final Global oldGlobal = Context.getGlobal();

        Context.setGlobal(cx.createGlobal());

        try {

            String code = "22 + 10";

            assertTrue(32.0 == ((Number)(eval(cx, "<evalTest>", code))).doubleValue());

            code = "obj = { js: 'nashorn' }; obj.js";

            assertEquals(eval(cx, "<evalTest2>", code), "nashorn");

        } finally {

            Context.setGlobal(oldGlobal);

        }

    }

    // basic check for JS reflection access - java.util.Map-like access on ScriptObject

    @Test

    public void reflectionTest() {

        final Options options = new Options("");

        final ErrorManager errors = new ErrorManager();

        final Context cx = new Context(options, errors, Thread.currentThread().getContextClassLoader());

        final boolean strict = cx.getEnv()._strict;

        final Global oldGlobal = Context.getGlobal();

        Context.setGlobal(cx.createGlobal());

        try {

            final String code = "var obj = { x: 344, y: 42 }";

            eval(cx, "<reflectionTest>", code);

            final Object obj = cx.getGlobal().get("obj");

            assertTrue(obj instanceof ScriptObject);

            final ScriptObject sobj = (ScriptObject)obj;

            int count = 0;

            for (final Map.Entry<?, ?> ex : sobj.entrySet()) {

                final Object key = ex.getKey();

                if (key.equals("x")) {

                    assertTrue(ex.getValue() instanceof Number);

                    assertTrue(344.0 == ((Number)ex.getValue()).doubleValue());

                    count++;

                } else if (key.equals("y")) {

                    assertTrue(ex.getValue() instanceof Number);

                    assertTrue(42.0 == ((Number)ex.getValue()).doubleValue());

                    count++;

                }

            }

            assertEquals(count, 2);

            assertEquals(sobj.size(), 2);

            // add property

            sobj.put("zee", "hello", strict);

            assertEquals(sobj.get("zee"), "hello");

            assertEquals(sobj.size(), 3);

        } finally {

            Context.setGlobal(oldGlobal);

        }

    }

    private Object eval(final Context cx, final String name, final String code) {

        final Source source = sourceFor(name, code);

        final ScriptObject global = Context.getGlobal();

        final ScriptFunction func = cx.compileScript(source, global);

        return func != null ? ScriptRuntime.apply(func, global) : null;

    }

}