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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
114 lines
4.2 KiB
JavaScript
114 lines
4.2 KiB
JavaScript
// Copyright 2008 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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// Ensure that operations on small integers handle -0.
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var zero = 0;
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var one = 1;
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var minus_one = -1;
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var two = 2;
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var four = 4;
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var minus_two = -2;
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var minus_four = -4;
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// variable op variable
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assertEquals(-Infinity, one / (-zero), "one / -0 I");
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assertEquals(-Infinity, one / (zero * minus_one), "one / -1");
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assertEquals(-Infinity, one / (minus_one * zero), "one / -0 II");
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assertEquals(Infinity, one / (zero * zero), "one / 0 I");
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assertEquals(1, one / (minus_one * minus_one), "one / 1");
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assertEquals(-Infinity, one / (zero / minus_one), "one / -0 III");
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assertEquals(Infinity, one / (zero / one), "one / 0 II");
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assertEquals(-Infinity, one / (minus_four % two), "foo1");
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assertEquals(-Infinity, one / (minus_four % minus_two), "foo2");
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assertEquals(Infinity, one / (four % two), "foo3");
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assertEquals(Infinity, one / (four % minus_two), "foo4");
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// literal op variable
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assertEquals(-Infinity, one / (0 * minus_one), "bar1");
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assertEquals(-Infinity, one / (-1 * zero), "bar2");
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assertEquals(Infinity, one / (0 * zero), "bar3");
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assertEquals(1, one / (-1 * minus_one), "bar4");
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assertEquals(-Infinity, one / (0 / minus_one), "baz1");
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assertEquals(Infinity, one / (0 / one), "baz2");
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assertEquals(-Infinity, one / (-4 % two), "baz3");
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assertEquals(-Infinity, one / (-4 % minus_two), "baz4");
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assertEquals(Infinity, one / (4 % two), "baz5");
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assertEquals(Infinity, one / (4 % minus_two), "baz6");
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// variable op literal
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assertEquals(-Infinity, one / (zero * -1), "fizz1");
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assertEquals(-Infinity, one / (minus_one * 0), "fizz2");
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assertEquals(Infinity, one / (zero * 0), "fizz3");
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assertEquals(1, one / (minus_one * -1), "fizz4");
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assertEquals(-Infinity, one / (zero / -1), "buzz1");
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assertEquals(Infinity, one / (zero / 1), "buzz2");
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assertEquals(-Infinity, one / (minus_four % 2), "buzz3");
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assertEquals(-Infinity, one / (minus_four % -2), "buzz4");
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assertEquals(Infinity, one / (four % 2), "buzz5");
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assertEquals(Infinity, one / (four % -2), "buzz6");
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// literal op literal
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assertEquals(-Infinity, one / (-0), "fisk1");
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assertEquals(-Infinity, one / (0 * -1), "fisk2");
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assertEquals(-Infinity, one / (-1 * 0), "fisk3");
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assertEquals(Infinity, one / (0 * 0), "fisk4");
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assertEquals(1, one / (-1 * -1), "fisk5");
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assertEquals(-Infinity, one / (0 / -1), "hest1");
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assertEquals(Infinity, one / (0 / 1), "hest2");
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assertEquals(-Infinity, one / (-4 % 2), "fiskhest1");
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assertEquals(-Infinity, one / (-4 % -2), "fiskhest2");
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assertEquals(Infinity, one / (4 % 2), "fiskhest3");
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assertEquals(Infinity, one / (4 % -2), "fiskhest4");
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// This tests against a singleton -0.0 object being overwritten.gc
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x = 0;
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z = 3044;
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function foo(x) {
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var y = -x + z;
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return -x;
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}
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assertEquals(-0, foo(x));
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assertEquals(-0, foo(x));
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