| // Copyright 2015 Microsoft Corporation. All rights reserved. |
| // This code is governed by the license found in the LICENSE file. |
| |
| /*--- |
| description: Math.Log2 with sample values. |
| es6id: 20.2.2.23 |
| ---*/ |
| |
| assert.sameValue(Math.log2(-0), Number.NEGATIVE_INFINITY, |
| "Math.log2 produces incorrect output for -0"); |
| assert.sameValue(Math.log2(+0), Number.NEGATIVE_INFINITY, |
| "Math.log2 produces incorrect output for +0"); |
| assert.sameValue(Math.log2(-0.9), NaN, |
| "Math.log2 produces incorrect output for -0.9"); |
| assert.sameValue(Math.log2(NaN), NaN, |
| "Math.log2 produces incorrect output for NaN"); |
| assert.sameValue(Math.log2(-10), NaN, |
| "Math.log2 produces incorrect output for -10"); |
| assert.sameValue(Math.log2(-Infinity), NaN, |
| "Math.log2 produces incorrect output for -Infinity"); |
| assert.sameValue(Math.log2(null), Number.NEGATIVE_INFINITY, |
| "Math.log2 produces incorrect output for null"); |
| assert.sameValue(Math.log2(undefined), NaN, |
| "Math.log2 produces incorrect output for undefined"); |
| assert.sameValue(Math.log2(Number.POSITIVE_INFINITY), Number.POSITIVE_INFINITY, |
| "Math.log2 produces incorrect output for Number.POSITIVE_INFINITY"); |
| assert.sameValue(Math.log2(1), 0, |
| "Math.log2 produces incorrect output for 1"); |
| assert.sameValue(Math.log2(2.00), 1, |
| "Math.log2 produces incorrect output for 2.00"); |
| assert.sameValue(Math.log2(4.00), 2, |
| "Math.log2 produces incorrect output for 4.00"); |
| assert.sameValue(Math.log2(8.00), 3, |
| "Math.log2 produces incorrect output for 8.00"); |