mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 03:34:08 +01:00
7298a38552
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
94 lines
3.0 KiB
JavaScript
94 lines
3.0 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * 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.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
|
|
// OWNER OR 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.
|
|
|
|
assertTrue({} instanceof Object);
|
|
assertTrue([] instanceof Object);
|
|
|
|
assertFalse({} instanceof Array);
|
|
assertTrue([] instanceof Array);
|
|
|
|
function TestChains() {
|
|
var A = {};
|
|
var B = {};
|
|
var C = {};
|
|
B.__proto__ = A;
|
|
C.__proto__ = B;
|
|
|
|
function F() { }
|
|
F.prototype = A;
|
|
assertTrue(C instanceof F);
|
|
assertTrue(B instanceof F);
|
|
assertFalse(A instanceof F);
|
|
|
|
F.prototype = B;
|
|
assertTrue(C instanceof F);
|
|
assertFalse(B instanceof F);
|
|
assertFalse(A instanceof F);
|
|
|
|
F.prototype = C;
|
|
assertFalse(C instanceof F);
|
|
assertFalse(B instanceof F);
|
|
assertFalse(A instanceof F);
|
|
}
|
|
|
|
TestChains();
|
|
|
|
|
|
function TestExceptions() {
|
|
function F() { }
|
|
var items = [ 1, new Number(42),
|
|
true,
|
|
'string', new String('hest'),
|
|
{}, [],
|
|
F, new F(),
|
|
Object, String ];
|
|
|
|
var exceptions = 0;
|
|
var instanceofs = 0;
|
|
|
|
for (var i = 0; i < items.length; i++) {
|
|
for (var j = 0; j < items.length; j++) {
|
|
try {
|
|
if (items[i] instanceof items[j]) instanceofs++;
|
|
} catch (e) {
|
|
assertTrue(e instanceof TypeError);
|
|
exceptions++;
|
|
}
|
|
}
|
|
}
|
|
assertEquals(10, instanceofs);
|
|
assertEquals(88, exceptions);
|
|
|
|
// Make sure to throw an exception if the function prototype
|
|
// isn't a proper JavaScript object.
|
|
function G() { }
|
|
G.prototype = undefined;
|
|
assertThrows("({} instanceof G)");
|
|
}
|
|
|
|
TestExceptions();
|