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

import { bEqual } from '../../../src/basic/bigint/b-equal.js';
import { bFlatRoots } from '../../../src/predictive-random/bigint/b-random.js';


describe('random.bFlatRoots', function() {
    it('should predictably generate a polynomial with Roots in a flat random distribution', 
    function() {
        let res: { p: bigint[], seed: number };
        
        res = bFlatRoots(3,0,10); 
        expect(bEqual(res.p, [
            35184372088832n,
            -607721334374400n,
            3424666384336699n,
            -6309998537583521n
        ])).toEqual(true);
        expect(res.seed).toEqual(939629312);
        
        res = bFlatRoots(3,0,10); 
        expect(bEqual(res.p, [
            35184372088832n,
            -607721334374400n,
            3424666384336699n,
            -6309998537583521n
        ])).toEqual(true);
        expect(res.seed).toEqual(939629312);
        
        res = bFlatRoots(3); // Uses defaults for range
        expect(bEqual(res.p, [
            18014398509481984n,
            -31115332319969280n,
            17534291887803900n,
            -3230719251242763n
        ])).toEqual(true);
        expect(res.seed).toEqual(939629312);
    });
});