mirror of
https://github.com/scratchfoundation/scratch-vm.git
synced 2024-12-23 14:32:59 -05:00
68 lines
2.2 KiB
JavaScript
68 lines
2.2 KiB
JavaScript
const test = require('tap').test;
|
|
const math = require('../../src/util/math-util');
|
|
|
|
test('degToRad', t => {
|
|
t.strictEqual(math.degToRad(0), 0);
|
|
t.strictEqual(math.degToRad(1), 0.017453292519943295);
|
|
t.strictEqual(math.degToRad(180), Math.PI);
|
|
t.strictEqual(math.degToRad(360), 2 * Math.PI);
|
|
t.strictEqual(math.degToRad(720), 4 * Math.PI);
|
|
t.end();
|
|
});
|
|
|
|
test('radToDeg', t => {
|
|
t.strictEqual(math.radToDeg(0), 0);
|
|
t.strictEqual(math.radToDeg(1), 57.29577951308232);
|
|
t.strictEqual(math.radToDeg(180), 10313.240312354817);
|
|
t.strictEqual(math.radToDeg(360), 20626.480624709635);
|
|
t.strictEqual(math.radToDeg(720), 41252.96124941927);
|
|
t.end();
|
|
});
|
|
|
|
test('clamp', t => {
|
|
t.strictEqual(math.clamp(0, 0, 10), 0);
|
|
t.strictEqual(math.clamp(1, 0, 10), 1);
|
|
t.strictEqual(math.clamp(-10, 0, 10), 0);
|
|
t.strictEqual(math.clamp(100, 0, 10), 10);
|
|
t.end();
|
|
});
|
|
|
|
test('wrapClamp', t => {
|
|
t.strictEqual(math.wrapClamp(0, 0, 10), 0);
|
|
t.strictEqual(math.wrapClamp(1, 0, 10), 1);
|
|
t.strictEqual(math.wrapClamp(-10, 0, 10), 1);
|
|
t.strictEqual(math.wrapClamp(100, 0, 10), 1);
|
|
t.end();
|
|
});
|
|
|
|
test('tan', t => {
|
|
t.strictEqual(math.tan(90), Infinity);
|
|
t.strictEqual(math.tan(180), 0);
|
|
t.strictEqual(math.tan(-90), -Infinity);
|
|
t.strictEqual(math.tan(33), 0.6494075932);
|
|
t.end();
|
|
});
|
|
|
|
test('reducedSortOrdering', t => {
|
|
t.deepEqual(math.reducedSortOrdering([5, 18, 6, 3]), [1, 3, 2, 0]);
|
|
t.deepEqual(math.reducedSortOrdering([5, 1, 56, 19]), [1, 0, 3, 2]);
|
|
t.end();
|
|
});
|
|
|
|
test('inclusiveRandIntWithout', t => {
|
|
const withRandomValue = function (randValue, ...args) {
|
|
const oldMathRandom = Math.random;
|
|
Object.assign(global.Math, {random: () => randValue});
|
|
const result = math.inclusiveRandIntWithout(...args);
|
|
Object.assign(global.Math, {random: oldMathRandom});
|
|
return result;
|
|
};
|
|
|
|
t.strictEqual(withRandomValue(3 / 6, 0, 6, 2), 4);
|
|
t.strictEqual(withRandomValue(2 / 6, 0, 6, 2), 3);
|
|
t.strictEqual(withRandomValue(1 / 6, 0, 6, 2), 1);
|
|
t.strictEqual(withRandomValue(1.9 / 6, 0, 6, 2), 1);
|
|
|
|
t.strictEqual(withRandomValue(3 / 4, 10, 14, 10), 13);
|
|
t.strictEqual(withRandomValue(0 / 4, 10, 14, 10), 11);
|
|
});
|