js/src/tests/ecma_6/Math/log2-exact.js@6474c204b198
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.
1 // Properties of Math.log2 that are guaranteed by the spec.
3 // If x is NaN, the result is NaN.
4 assertEq(Math.log2(NaN), NaN);
6 // If x is less than 0, the result is NaN.
7 assertEq(Math.log2(-1e-10), NaN);
8 assertEq(Math.log2(-1e-5), NaN);
9 assertEq(Math.log2(-1e-1), NaN);
10 assertEq(Math.log2(-Number.MIN_VALUE), NaN);
11 assertEq(Math.log2(-Number.MAX_VALUE), NaN);
12 assertEq(Math.log2(-Infinity), NaN);
14 for (var i = -1; i > -10; i--)
15 assertEq(Math.log2(i), NaN);
17 // If x is +0, the result is −∞.
18 assertEq(Math.log2(+0), -Infinity);
20 // If x is −0, the result is −∞.
21 assertEq(Math.log2(-0), -Infinity);
23 // If x is 1, the result is +0.
24 assertEq(Math.log2(1), +0);
26 // If x is +∞, the result is +∞.
27 assertEq(Math.log2(Infinity), Infinity);
30 reportCompare(0, 0, 'ok');
