4fd99d23cc
Review URL: http://codereview.chromium.org/799006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4093 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
49 lines
2.3 KiB
JavaScript
49 lines
2.3 KiB
JavaScript
// Copyright 2010 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.
|
|
|
|
// Test Math.sin and Math.abs.
|
|
|
|
assertEquals(1, Math.abs(1)); // Positive SMI.
|
|
assertEquals(1, Math.abs(-1)); // Negative SMI.
|
|
assertEquals(0.5, Math.abs(0.5)); // Positive double.
|
|
assertEquals(0.5, Math.abs(-0.5)); // Negative double.
|
|
assertEquals('Infinity', Math.abs(Number('+Infinity').toString()));
|
|
assertEquals('Infinity', Math.abs(Number('-Infinity').toString()));
|
|
assertEquals('NaN', Math.abs(NaN).toString());
|
|
assertEquals('NaN', Math.abs(-NaN).toString());
|
|
|
|
var minusZero = 1 / (-1 / 0);
|
|
function isMinusZero(x) {
|
|
return x === 0 && 1 / x < 0;
|
|
}
|
|
|
|
assertTrue(!isMinusZero(0));
|
|
assertTrue(isMinusZero(minusZero));
|
|
assertEquals(0, Math.abs(minusZero));
|
|
assertTrue(!isMinusZero(Math.abs(minusZero)));
|
|
assertTrue(!isMinusZero(Math.abs(0.0)));
|