v8/test/mjsunit/regress/regress-3229.js

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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Escape '/'.
function testEscapes(expected, regexp) {
assertEquals(expected, regexp.source);
assertEquals("/" + expected + "/", regexp.toString());
}
testEscapes("\\/", /\//);
testEscapes("\\/\\/", /\/\//);
testEscapes("\\/", new RegExp("/"));
testEscapes("\\/", new RegExp("\\/"));
testEscapes("\\\\/", new RegExp("\\\\/"));
testEscapes("\\/\\/", new RegExp("\\/\\/"));
testEscapes("\\/\\/\\/\\/", new RegExp("////"));
testEscapes("\\/\\/\\/\\/", new RegExp("\\//\\//"));
testEscapes("(?:)", new RegExp(""));
testEscapes("(?:)", RegExp.prototype);
// Read-only property.
var r = /\/\//;
testEscapes("\\/\\/", r);
r.source = "garbage";
testEscapes("\\/\\/", r);