Shows how the approach we took yesterday fails...

gistfile1.txt

describe('Tiff problem v2', function() {

  it('goes a little something like this', function() {
    var NS = {};
    
    var Bing = function(myFoo) {
      this.foo = myFoo;
    };

    Bing.prototype = {
        getFoo: function() {
          return this.foo;
        },
        updateFoo: function(prop, val) {
          this.getFoo()[prop] = val;
        },
        boom: function() {
          return 1;
        },
        identity: function() {
          return this;
        }
    };

    NS.Foo = function() {
      this.bar = 'bat';
      this.bing = new Bing(this);
    };

    var foo = new NS.Foo(),
        foo2 = new NS.Foo();

    expect(foo.bing.boom()).toEqual(1);
    expect(foo.bing.identity()).toEqual(foo.bing);
    expect(foo.bing.getFoo()).toEqual(foo);
    foo.bing.updateFoo('bar', 'Tiff');
    expect(foo.bar).toBe('Tiff');
  });

  it('goes a little something like that', function() {
    var NS = {};

    NS.Foo = function() {
      this.bar = 'bat';
      this.bing.foo = this;
      // this.bing = new Bing(this);
    };

    NS.Foo.prototype = {
      bing: {
        // foo: null,
        getFoo: function() {
          return this.foo;
        },
        updateFoo: function(prop, val) {
          this.getFoo()[prop] = val;
        },
        boom: function() {
          return 1;
        },
        identity: function() {
          return this;
        }
      }
    };

    var foo = new NS.Foo();
        foo2 = new NS.Foo();

    expect(foo.bing.boom()).toEqual(1);
    expect(foo.bing.identity()).toEqual(foo.bing);
    expect(foo.bing.getFoo()).toEqual(foo);
    // THESE WILL FAIL!!!
    expect(foo.bar).toBe('bat');
    foo.bing.updateFoo('bar', 'Tiff');
    expect(foo.bar).toBe('Tiff');
  });
});