Checking object equality in Jasmine

Question

Jasmine has built-in matchers toBe and toEqual. If I have an object like this:

function Money(amount, currency){
    this.amount = amou         


        

Answer 1

Its the expected behavior, as two instances of an object are not the same in JavaScript.

function Money(amount, currency){
  this.amount = amount;
  this.currency = currency;

  this.sum = function (money){
    return new Money(200, "USD");
  }
}

var a = new Money(200, "USD")
var b = a.sum();

console.log(a == b) //false
console.log(a === b) //false

For a clean test you should write your own matcher that compares amount and currency:

beforeEach(function() {
  this.addMatchers({
    sameAmountOfMoney: function(expected) {
      return this.actual.currency == expected.currency && this.actual.amount == expected.amount;
    }
  });
});