@alu0101350158/constant-folding/test/test.js

Constant Folding javascript code

const constantFolding = require('../src/constant-folding');
const should = require('chai').should();

const example1 = `a=2*3;`;
const expectedOutput1 = `a = 6;`;
const example2 = `[1, 2, 3].length;`;
const expectedOutput2 = `3;`;
const example3 = `["a", "b", "c"].join();`;
const expectedOutput3 = `'a,b,c';`;
const example4 = `["a", "b", "c"].join('@');`;
const expectedOutput4 = `'a@b@c';`;
const example5 = `[1, 2, 3][2-1];`;
const expectedOutput5 = `2;`;
const example6 = `[a, b, c].pop();`;
const expectedOutput6 = `c;`;
const example7 = `[a, b, c].reverse();`;
const expectedOutput7 = `[c, b, a];`;
const example10 = `["a", "b", "c"].concat(["d", "e"], "f", "g", ["h"]);`;
const expectedOutput10 = `[
    'a',
    'b',
    'c',
    'd',
    'e',
    'f',
    'g',
    'h'
];`;

/**
 * Tests de la funcion constantFolding
 */
describe('constantFolding tests', () => {
  it('works correctly with normal functions', () => {
    constantFolding(example1).should .equal(expectedOutput1);
  });
  it('works correctly with array length', () => {
    constantFolding(example2).should .equal(expectedOutput2);
  });
  it('works correctly with array join', () => {
    constantFolding(example3).should .equal(expectedOutput3);
  });
  it('works correctly with array join with arguments', () => {
    constantFolding(example4).should .equal(expectedOutput4);
  });
  it('works correctly with array []', () => {
    constantFolding(example5).should .equal(expectedOutput5);
  });
  it('works correctly with array pop', () => {
    constantFolding(example6).should .equal(expectedOutput6);
  });
  it('works correctly with array concat', () => {
    constantFolding(example10).should .equal(expectedOutput10);
  });
});