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

import { bRemoveLeadingZeros } from '../../../src/basic/bigint/b-remove-leading-zeros.js';


describe('bRemoveLeadingZeros', function() {
    it('should correctly remove leading zeros of some polynomials with bigint coefficients', 
    function() {
        let p1 = [0n, 10n, -5n];
        let p2 = [0n, 0n, -10n, 1n];
        let p3: bigint[] = [];
        let p4 = [0n,0n,0n,0n];
        
        expect(bRemoveLeadingZeros(p1)).toEqual([10n, -5n]); 
        expect(bRemoveLeadingZeros(p2)).toEqual([-10n, 1n]);
        expect(bRemoveLeadingZeros(p3)).toEqual([]);
        expect(bRemoveLeadingZeros(p4)).toEqual([]);
    });
});