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

import { eRemoveLeadingZeros } from '../../../src/basic/expansion/e-remove-leading-zeros.js';


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