test/webkit/fast/js/deep-recursion-test.js

// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1.  Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
// 2.  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

description("This test how deep we can recurse, and that we get an exception when we do, as opposed to a stack overflow.");

    function simpleRecursion(depth) {
        if (depth)
            simpleRecursion(depth - 1);
    }

    try {
        simpleRecursion(4000);
    } catch (ex) {
        debug("FAIL: " + ex);
    }

    try {
        simpleRecursion(10000000);
    } catch (ex) {
        var msg = String(eval(ex));
        shouldBe("msg", "'RangeError: Maximum call stack size exceeded.'");
    }

    try {
        simpleRecursion(1000000000);
    } catch (ex) {
        var msg = String(eval(ex));
        shouldBe("msg", "'RangeError: Maximum call stack size exceeded.'");
    }

    var tooFewArgsDepth = 0;

    function tooFewArgsRecursion(a) {
        if (tooFewArgsDepth) {
            tooFewArgsDepth--;
            tooFewArgsRecursion();
        }
    }

    try {
        tooFewArgsDepth = 10000000;
        tooFewArgsRecursion();
    } catch (ex) {
        var msg = String(eval(ex));
        shouldBe("msg", "'RangeError: Maximum call stack size exceeded.'");
    }

    function tooManyArgsRecursion(depth) {
        if (depth)
            tooManyArgsRecursion(depth - 1, 1);
    }

    try {
        tooManyArgsRecursion(10000000, 1);
    } catch (ex) {
        var msg = String(eval(ex));
        shouldBe("msg", "'RangeError: Maximum call stack size exceeded.'");
    }