import { assert } from 'chai';
import {
    radians,
    degrees
} from '../../../lib/math/units';
import {
    DOUBLE_EPSILON,
    fuzzyEqual
} from '../../../lib/math/float';

describe('math.units', () => {
    describe('radians', () => {
        test.each([
            [0, 0],
            [1, Math.PI / 180],
            [90, Math.PI / 2],
            [-180, -Math.PI],
        ])('radians#%#', (deg: number, result: number) => {
            assert.isTrue(fuzzyEqual(radians(deg), result, DOUBLE_EPSILON));
        });
    });

    describe('degrees', () => {
        test.each([
            [0, 0],
            [1, 180 / Math.PI],
            [Math.PI / 2, 90],
            [-Math.PI, -180],
        ])('degrees#%#', (rad: number, result: number) => {
            assert.isTrue(fuzzyEqual(degrees(rad), result, DOUBLE_EPSILON));
        });
    });
});