test/script/basic/JDK-8019508.js

/*
 * 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.
 *
 * 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
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 */

/**
 * JDK-8019508: Comma handling in object literal parsing is wrong
 *
 * @test
 * @run
 */

function checkObjLiteral(str) {
    try {
        eval(str);
        fail("SyntaxError expected for: " + str);
    } catch (e) {
        if (! (e instanceof SyntaxError)) {
            fail("expected SyntaxError, got " + e);
        }
        printError(e);
    }
}

// only comma
checkObjLiteral("({,})");

// starting with comma
checkObjLiteral("({, a:2 })");

// consecutive commas
checkObjLiteral("({a:3,,})");

// missing comma
checkObjLiteral("({a:3 b:2}");

// single trailing comma is okay!
var obj = { a: 3, };