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Remove unused roundUpToPowerOfTwo function

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This commit is contained in:
Frederic Junod
2019-05-16 12:11:01 +02:00
parent a8e5cb1e12
commit c2058af13a
2 changed files with 1 additions and 51 deletions
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11
src/ol/math.js
View File

@@ -1,7 +1,6 @@
/**
* @module ol/math
*/
import {assert} from './asserts.js';
/**
* Takes a number and clamps it to within the provided bounds.
@@ -43,16 +42,6 @@ export const cosh = (function() {
}());
/**
* @param {number} x X.
* @return {number} The smallest power of two greater than or equal to x.
*/
export function roundUpToPowerOfTwo(x) {
assert(0 < x, 29); // `x` must be greater than `0`
return Math.pow(2, Math.ceil(Math.log(x) / Math.LN2));
}
/**
* Returns the square of the closest distance between the point (x, y) and the
* line segment (x1, y1) to (x2, y2).

41
test/spec/ol/math.test.js
View File

@@ -1,4 +1,4 @@
import {clamp, lerp, cosh, roundUpToPowerOfTwo, solveLinearSystem, toDegrees, toRadians, modulo} from '../../../src/ol/math.js';
import {clamp, lerp, cosh, solveLinearSystem, toDegrees, toRadians, modulo} from '../../../src/ol/math.js';
describe('ol.math.clamp', function() {
@@ -49,45 +49,6 @@ describe('ol.math.cosh', function() {
});
describe('ol.math.roundUpToPowerOfTwo', function() {
it('raises an exception when x is negative', function() {
expect(function() {
roundUpToPowerOfTwo(-1);
}).to.throwException();
});
it('raises an exception when x is zero', function() {
expect(function() {
roundUpToPowerOfTwo(0);
}).to.throwException();
});
it('returns the expected value for simple powers of two', function() {
expect(roundUpToPowerOfTwo(1)).to.be(1);
expect(roundUpToPowerOfTwo(2)).to.be(2);
expect(roundUpToPowerOfTwo(4)).to.be(4);
expect(roundUpToPowerOfTwo(8)).to.be(8);
expect(roundUpToPowerOfTwo(16)).to.be(16);
expect(roundUpToPowerOfTwo(32)).to.be(32);
expect(roundUpToPowerOfTwo(64)).to.be(64);
expect(roundUpToPowerOfTwo(128)).to.be(128);
expect(roundUpToPowerOfTwo(256)).to.be(256);
});
it('returns the expected value for simple powers of ten', function() {
expect(roundUpToPowerOfTwo(1)).to.be(1);
expect(roundUpToPowerOfTwo(10)).to.be(16);
expect(roundUpToPowerOfTwo(100)).to.be(128);
expect(roundUpToPowerOfTwo(1000)).to.be(1024);
expect(roundUpToPowerOfTwo(10000)).to.be(16384);
expect(roundUpToPowerOfTwo(100000)).to.be(131072);
expect(roundUpToPowerOfTwo(1000000)).to.be(1048576);
expect(roundUpToPowerOfTwo(10000000)).to.be(16777216);
});
});
describe('ol.math.solveLinearSystem', function() {
it('calculates correctly', function() {