/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

ChromeUtils.defineESModuleGetters(this, {
  Calculator: "resource:///modules/UrlbarProviderCalculator.sys.mjs",
});

const FORMULAS = [
  ["1+1", 2],
  ["3+4*2/(1-5)", 1],
  ["39+4*2/(1-5)", 37],
  ["(39+4)*2/(1-5)", -21.5],
  ["4+-5", -1],
  ["-5*6", -30],
  ["-5.5*6", -33],
  ["-5.5*-6.4", 35.2],
  ["-6-6-6", -18],
  ["6-6-6", -6],
  [".001 /2", 0.0005],
  ["(0-.001)/2", -0.0005],
  ["-.001/(0-2)", 0.0005],
  ["1000000000000000000000000+1", "1.0e24"],
  ["1000000000000000000000000-1", "1.0e24"],
  ["1e+30+10", "1.0e30"],
  ["1e+30*10", "1.0e31"],
  ["1e+30/100", "1.0e28"],
  ["10/1000000000000000000000000", "1.0e-23"],
  ["10/-1000000000000000000000000", "-1.0e-23"],
  ["1,500.5+2.5", 1503], // Ignore commas when using decimal seperators
  ["1,5+2,5", 4], // Support comma seperators
  ["1.500,5+2,5", 1503], // Ignore periods when using comma decimal seperators
  ["3^3", 27],
  ["2+3^3", 29],
  ["4^0.5+4^-0.5", 2.5],
  ["3+8*64/(1-3)^2^3", 5],
  ["1/0", "undefined"],
  ["1/3", 0.3333333333333333],
  ["1/(3*10^10)", "3.33333333e-11"],
  ["1,000,000+500", 1000500],
  ["1.000.000+500", 1000500],
];

add_task(function test() {
  for (let [formula, result] of FORMULAS) {
    let postfix = Calculator.infix2postfix(formula);
    Assert.strictEqual(
      Calculator.evaluatePostfix(postfix),
      result,
      `${formula} should equal ${result}`
    );
  }
});