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Diffstat (limited to 'deps/v8/test/mjsunit/math-abs.js')
-rw-r--r-- | deps/v8/test/mjsunit/math-abs.js | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/math-abs.js b/deps/v8/test/mjsunit/math-abs.js new file mode 100644 index 0000000000..bec1a01c44 --- /dev/null +++ b/deps/v8/test/mjsunit/math-abs.js @@ -0,0 +1,98 @@ +// 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. + +// Flags: --max-new-space-size=256 + +function zero() { + var x = 0.5; + return (function() { return x - 0.5; })(); +} + +function test() { + assertEquals(0, Math.abs(0)); + assertEquals(0, Math.abs(zero())); + assertEquals(1/0, 1/Math.abs(-0)); // 0 == -0, so we use reciprocals. + assertEquals(Infinity, Math.abs(Infinity)); + assertEquals(Infinity, Math.abs(-Infinity)); + assertNaN(Math.abs(NaN)); + assertNaN(Math.abs(-NaN)); + 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()); + + assertEquals(0.1, Math.abs(0.1)); + assertEquals(0.5, Math.abs(0.5)); + assertEquals(0.1, Math.abs(-0.1)); + assertEquals(0.5, Math.abs(-0.5)); + assertEquals(1, Math.abs(1)); + assertEquals(1.1, Math.abs(1.1)); + assertEquals(1.5, Math.abs(1.5)); + assertEquals(1, Math.abs(-1)); + assertEquals(1.1, Math.abs(-1.1)); + assertEquals(1.5, Math.abs(-1.5)); + + assertEquals(Number.MIN_VALUE, Math.abs(Number.MIN_VALUE)); + assertEquals(Number.MIN_VALUE, Math.abs(-Number.MIN_VALUE)); + assertEquals(Number.MAX_VALUE, Math.abs(Number.MAX_VALUE)); + assertEquals(Number.MAX_VALUE, Math.abs(-Number.MAX_VALUE)); + + // 2^30 is a smi boundary on arm and ia32. + var two_30 = 1 << 30; + + assertEquals(two_30, Math.abs(two_30)); + assertEquals(two_30, Math.abs(-two_30)); + + assertEquals(two_30 + 1, Math.abs(two_30 + 1)); + assertEquals(two_30 + 1, Math.abs(-two_30 - 1)); + + assertEquals(two_30 - 1, Math.abs(two_30 - 1)); + assertEquals(two_30 - 1, Math.abs(-two_30 + 1)); + + // 2^31 is a smi boundary on x64. + var two_31 = 2 * two_30; + + assertEquals(two_31, Math.abs(two_31)); + assertEquals(two_31, Math.abs(-two_31)); + + assertEquals(two_31 + 1, Math.abs(two_31 + 1)); + assertEquals(two_31 + 1, Math.abs(-two_31 - 1)); + + assertEquals(two_31 - 1, Math.abs(two_31 - 1)); + assertEquals(two_31 - 1, Math.abs(-two_31 + 1)); + + assertNaN(Math.abs("not a number")); + assertNaN(Math.abs([1, 2, 3])); + assertEquals(42, Math.abs({valueOf: function() { return 42; } })); + assertEquals(42, Math.abs({valueOf: function() { return -42; } })); +} + + +// Test in a loop to cover the custom IC and GC-related issues. +for (var i = 0; i < 500; i++) { + test(); +} |