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127 lines
5.8 KiB
JavaScript
127 lines
5.8 KiB
JavaScript
// Copyright 2012 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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// Test number predicates that Harmony adds to the Number constructor:
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// isFinite(), isNaN(), isInteger(), isSafeInteger().
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assertTrue(Number.isFinite(0));
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assertTrue(Number.isFinite(Number.MIN_VALUE));
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assertTrue(Number.isFinite(Number.MAX_VALUE));
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assertTrue(Number.isFinite(Number.MIN_SAFE_INTEGER));
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assertTrue(Number.isFinite(Number.MIN_SAFE_INTEGER - 13));
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assertTrue(Number.isFinite(Number.MAX_SAFE_INTEGER));
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assertTrue(Number.isFinite(Number.MAX_SAFE_INTEGER + 23));
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assertFalse(Number.isFinite(Number.NaN));
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assertFalse(Number.isFinite(Number.POSITIVE_INFINITY));
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assertFalse(Number.isFinite(Number.NEGATIVE_INFINITY));
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assertFalse(Number.isFinite(new Number(0)));
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assertFalse(Number.isFinite(1/0));
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assertFalse(Number.isFinite(-1/0));
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assertFalse(Number.isFinite({}));
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assertFalse(Number.isFinite([]));
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assertFalse(Number.isFinite("s"));
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assertFalse(Number.isFinite(null));
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assertFalse(Number.isFinite(undefined));
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assertFalse(Number.isNaN(0));
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assertFalse(Number.isNaN(Number.MIN_VALUE));
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assertFalse(Number.isNaN(Number.MAX_VALUE));
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assertFalse(Number.isNaN(Number.MIN_SAFE_INTEGER - 13));
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assertFalse(Number.isNaN(Number.MAX_SAFE_INTEGER + 23));
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assertTrue(Number.isNaN(Number.NaN));
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assertFalse(Number.isNaN(Number.POSITIVE_INFINITY));
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assertFalse(Number.isNaN(Number.NEGATIVE_INFINITY));
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assertFalse(Number.isNaN(Number.EPSILON));
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assertFalse(Number.isNaN(new Number(0)));
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assertFalse(Number.isNaN(1/0));
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assertFalse(Number.isNaN(-1/0));
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assertFalse(Number.isNaN({}));
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assertFalse(Number.isNaN([]));
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assertFalse(Number.isNaN("s"));
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assertFalse(Number.isNaN(null));
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assertFalse(Number.isNaN(undefined));
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assertFalse(Number.isInteger({}));
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assertFalse(Number.isInteger([]));
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assertFalse(Number.isInteger("s"));
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assertFalse(Number.isInteger(null));
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assertFalse(Number.isInteger(undefined));
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assertFalse(Number.isInteger(new Number(2)));
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assertTrue(Number.isInteger(0));
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assertFalse(Number.isInteger(Number.MIN_VALUE));
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assertTrue(Number.isInteger(Number.MAX_VALUE));
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assertTrue(Number.isInteger(Number.MIN_SAFE_INTEGER));
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assertTrue(Number.isInteger(Number.MIN_SAFE_INTEGER - 13));
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assertTrue(Number.isInteger(Number.MAX_SAFE_INTEGER));
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assertTrue(Number.isInteger(Number.MAX_SAFE_INTEGER + 23));
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assertFalse(Number.isInteger(Number.NaN));
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assertFalse(Number.isInteger(Number.POSITIVE_INFINITY));
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assertFalse(Number.isInteger(Number.NEGATIVE_INFINITY));
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assertFalse(Number.isInteger(1/0));
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assertFalse(Number.isInteger(-1/0));
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assertFalse(Number.isInteger(Number.EPSILON));
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assertFalse(Number.isSafeInteger({}));
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assertFalse(Number.isSafeInteger([]));
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assertFalse(Number.isSafeInteger("s"));
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assertFalse(Number.isSafeInteger(null));
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assertFalse(Number.isSafeInteger(undefined));
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assertFalse(Number.isSafeInteger(new Number(2)));
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assertTrue(Number.isSafeInteger(0));
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assertTrue(Number.isSafeInteger(Number.MIN_SAFE_INTEGER));
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assertFalse(Number.isSafeInteger(Number.MIN_SAFE_INTEGER - 13));
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assertTrue(Number.isSafeInteger(Number.MIN_SAFE_INTEGER + 13));
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assertTrue(Number.isSafeInteger(Number.MAX_SAFE_INTEGER));
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assertFalse(Number.isSafeInteger(Number.MAX_SAFE_INTEGER + 23));
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assertTrue(Number.isSafeInteger(Number.MAX_SAFE_INTEGER - 23));
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assertFalse(Number.isSafeInteger(Number.MIN_VALUE));
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assertFalse(Number.isSafeInteger(Number.MAX_VALUE));
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assertFalse(Number.isSafeInteger(Number.NaN));
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assertFalse(Number.isSafeInteger(Number.POSITIVE_INFINITY));
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assertFalse(Number.isSafeInteger(Number.NEGATIVE_INFINITY));
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assertFalse(Number.isSafeInteger(1/0));
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assertFalse(Number.isSafeInteger(-1/0));
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assertFalse(Number.isSafeInteger(Number.EPSILON));
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var near_upper = Math.pow(2, 52);
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assertTrue(Number.isSafeInteger(near_upper));
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assertFalse(Number.isSafeInteger(2 * near_upper));
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assertTrue(Number.isSafeInteger(2 * near_upper - 1));
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assertTrue(Number.isSafeInteger(2 * near_upper - 2));
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assertFalse(Number.isSafeInteger(2 * near_upper + 1));
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assertFalse(Number.isSafeInteger(2 * near_upper + 2));
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assertFalse(Number.isSafeInteger(2 * near_upper + 7));
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var near_lower = -near_upper;
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assertTrue(Number.isSafeInteger(near_lower));
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assertFalse(Number.isSafeInteger(2 * near_lower));
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assertTrue(Number.isSafeInteger(2 * near_lower + 1));
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assertTrue(Number.isSafeInteger(2 * near_lower + 2));
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assertFalse(Number.isSafeInteger(2 * near_lower - 1));
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assertFalse(Number.isSafeInteger(2 * near_lower - 2));
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assertFalse(Number.isSafeInteger(2 * near_lower - 7));
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