JavaScript Programming assignment

import parse from '../src/expr-parser.mjs'; import chai from 'chai'; const { assert } = chai; import util from 'util'; describe('parse', function() { it ('must parse simple arith expr correctly', function () { const ast = parse('1 + 2*3'); assert.equal(ast.toString(), '1+2*3'); }); it ('must parse simple prec expr correctly', function () { const ast = parse('( (1 + 2)*3 )'); assert.equal(ast.toString().replace(/\s/g, ''), '(1+2)*3'); }); it ('must parse assoc expr correctly', function () { const ast = parse('(1 + 2 - 3 )'); assert.equal(ast.toString().replace(/\s/g, ''), '1+2-3'); }); it ('must parse paren-assoc expr correctly', function () { const ast = parse('(1 + (2 - 3) )'); assert.equal(ast.toString().replace(/\s/g, ''), '1+(2-3)'); }); it ('must parse unary - expr correctly', function () { const ast = parse('(--1 + (2))'); assert.equal(ast.toString().replace(/\s/g, ''), '-(-1)+2'); }); it ('must parse function expr correctly', function () { const ast = parse('(1 + max((2 + 3)*4, 5, 6))'); assert.equal(ast.toString().replace(/\s/g, ''), '1+max((2+3)*4,5,6)'); }); it ('must parse nested function expr correctly', function () { const ast = parse('(1 + max((2 + 3)*4, min(5, 6)))'); assert.equal(ast.toString().replace(/\s/g, ''), '1+max((2+3)*4,min(5,6))'); }); it ('must parse cell ref correctly', function () { const ast = parse('c$1', 'a1'); assert.equal(ast.toString().replace(/\s/g, ''), 'c$1'); }); it ('must translate cell ref correctly', function () { const ast = parse('c2', 'a5'); assert.equal(ast.toString('f6').replace(/\s/g, ''), 'h3'); }); it ('must translate cell ref without translating abs', function () { const ast = parse('c$2', 'a5'); assert.equal(ast.toString('f6').replace(/\s/g, ''), 'h$2'); }); it ('must parse and translate complex formula', function () { const ast = parse('((1 + C$2)*$b3)', 'A5'); //console.log(util.inspect(ast, false, null)); assert.equal(ast.toString('f6').replace(/\s/g, ''), '(1+h$2)*$b4'); }); });