53 lines
2.6 KiB
JavaScript
53 lines
2.6 KiB
JavaScript
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// Copyright 2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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assertEquals(0, Math.round(0));
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assertEquals(-0, Math.round(-0));
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assertEquals(Infinity, Math.round(Infinity));
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assertEquals(-Infinity, Math.round(-Infinity));
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assertNaN(Math.round(NaN));
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assertEquals(1, Math.round(0.5));
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assertEquals(1, Math.round(0.7));
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assertEquals(1, Math.round(1));
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assertEquals(1, Math.round(1.1));
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assertEquals(1, Math.round(1.49999));
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assertEquals(1/-0, 1/Math.round(-0.5)); // Test for -0 result.
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assertEquals(-1, Math.round(-0.5000000000000001));
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assertEquals(-1, Math.round(-0.7));
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assertEquals(-1, Math.round(-1));
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assertEquals(-1, Math.round(-1.1));
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assertEquals(-1, Math.round(-1.49999));
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assertEquals(-1, Math.round(-1.5));
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assertEquals(9007199254740990, Math.round(9007199254740990));
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assertEquals(9007199254740991, Math.round(9007199254740991));
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assertEquals(-9007199254740990, Math.round(-9007199254740990));
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assertEquals(-9007199254740991, Math.round(-9007199254740991));
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assertEquals(Number.MAX_VALUE, Math.round(Number.MAX_VALUE));
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assertEquals(-Number.MAX_VALUE, Math.round(-Number.MAX_VALUE));
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