mortgage-calculator/test/formatmoney.test.js

package for basic calculation mortgage

/*exported _, defaultOptions*/

if (typeof require !== "undefined") {
  var expect = require("chai").expect,
    formatFixtures = require("./fixtures/format_money.json"),
    _ = require("lodash"),
    formatMoney = require("../lib/format_money.js");
} else {
  var request = new XMLHttpRequest();
  request.open("GET", "fixtures/format_money.json", false);
  request.send(null);
  var formatFixtures = JSON.parse(request.responseText);
}

describe("Format Money: When passing different values than defaults it:",
  function () {

    it("should return defaults :$0.90", function () {
      expect(formatMoney(0.90123)).to.equal("$0.90");
    });

    it("should return different from defaults :$0,901", function () {
      expect(formatMoney.apply(null, [0.90123, {
        "places": 3,
        "symbol": "$",
        "thousand": ".",
        "decimal": ","
      }])).to.equal("$0,901");
    });

    it("should return different from defaults :¶0,9012", function () {
      expect(formatMoney.apply(null, [0.90123, {
        "places": 4,
        "symbol": "¶",
        "thousand": ".",
        "decimal": ","
      }])).to.equal("¶0,9012");
    });

    it("should return defaults :$0,90", function () {
      expect(formatMoney.apply(null, [0.90123])).to.equal("$0.90");
    });

    it("should return different from defaults :¶0,90123", function () {
      expect(formatMoney.apply(null, [0.90123, {
        "places": 5,
        "symbol": "¶"
      }])).to.equal("¶0.90123");
    });

  });

describe("Format Money: when using the function, it:", function () {


  it("should give the result $2,000.00", function () {
    expect(formatMoney(2000)).to.eql("$2,000.00");
  });

  it("should not modify original options", function () {
    var options = {
      "places": 4
    };
    formatMoney(2000, options);
    expect(options).to.eql({
      "places": 4
    });
  });
});

describe("Format Money: When using the fixtures it:", function () {

  for (var i = 0; i < formatFixtures.length; i += 1) {
    it("should test " + formatFixtures[i].explanation +
      formatFixtures[i].output, checkFixtures(formatFixtures[i]));
  }

});

function checkFixtures(fixture) {
  return function () {
    expect(formatMoney.apply(null, fixture.input)).to.equal(fixture.output);
  };
}