js/src/tests/ecma_6/Math/log2-exact.js@6474c204b198 (annotated)
js/src/tests/ecma_6/Math/log2-exact.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // Properties of Math.log2 that are guaranteed by the spec. |
| michael@0 | 2 | |
| michael@0 | 3 | // If x is NaN, the result is NaN. |
| michael@0 | 4 | assertEq(Math.log2(NaN), NaN); |
| michael@0 | 5 | |
| michael@0 | 6 | // If x is less than 0, the result is NaN. |
| michael@0 | 7 | assertEq(Math.log2(-1e-10), NaN); |
| michael@0 | 8 | assertEq(Math.log2(-1e-5), NaN); |
| michael@0 | 9 | assertEq(Math.log2(-1e-1), NaN); |
| michael@0 | 10 | assertEq(Math.log2(-Number.MIN_VALUE), NaN); |
| michael@0 | 11 | assertEq(Math.log2(-Number.MAX_VALUE), NaN); |
| michael@0 | 12 | assertEq(Math.log2(-Infinity), NaN); |
| michael@0 | 13 | |
| michael@0 | 14 | for (var i = -1; i > -10; i--) |
| michael@0 | 15 | assertEq(Math.log2(i), NaN); |
| michael@0 | 16 | |
| michael@0 | 17 | // If x is +0, the result is −∞. |
| michael@0 | 18 | assertEq(Math.log2(+0), -Infinity); |
| michael@0 | 19 | |
| michael@0 | 20 | // If x is −0, the result is −∞. |
| michael@0 | 21 | assertEq(Math.log2(-0), -Infinity); |
| michael@0 | 22 | |
| michael@0 | 23 | // If x is 1, the result is +0. |
| michael@0 | 24 | assertEq(Math.log2(1), +0); |
| michael@0 | 25 | |
| michael@0 | 26 | // If x is +∞, the result is +∞. |
| michael@0 | 27 | assertEq(Math.log2(Infinity), Infinity); |
| michael@0 | 28 | |
| michael@0 | 29 | |
| michael@0 | 30 | reportCompare(0, 0, 'ok'); |
