import { describe, expect, it } from '@jest/globals';

import { bMultiplyByConst } from '../../../src/basic/bigint/b-multiply-by-const.js';


describe('bMultiplyByConst', function() {
    it('should correctly multiply some polynomials with bigint coefficients by a constant', 
    function() {
        let p1: bigint[] = [];
        let p2 = [1n,2n,3n,4n];
        expect(bMultiplyByConst(2n,p1)).toEqual([]);
        expect(bMultiplyByConst(2n,p2)).toEqual([2n,4n,6n,8n]);
    });
    
    
    it('should return the zero polynomial if the polynomial was multiplied by 0', 
    function() {
        let p1 = [1n,2n,3n,4n];
        expect(bMultiplyByConst(0n,p1)).toEqual([]);
    });
});