testdouble.js vs. sinon.js by Justin Searls

In testdouble stub, spy, mock are created with the same syntax: td.function()

If it’s an object:

  var dog = td.object(Dog)
dog.woof // a test double function
dog.bark // a test double function

of dog has any property which is a function it will be replaced by a test double function.

testdouble:

td.replace(process, ‘cwd’)

process.cwd is now a test double function

no longer need for sandboxed module :

var brake = td.replace(‘../../lib/brake’)

Depending on what it exports testdouble will replace the function (td.function(‘brake’) or the object (td.object())

td.when(ask(‘meaning’)).thenReturn(42) (ask is a test double function).

td.verify(save(‘Joe’))

Sinon provides a redundant way to create test doubles (mocks, stubs, spies) so most users don’t exactly know why they chose one over the other.

Testdouble simplifies and thus clarifies this.

Abundancia