Updates #10: Add tests for Decorators.js

[SlyBouhafs]

Updates #10

I am not sure if the tests are actually sufficient, i was confused by the functions and didn't really know what to expect, i only tested for the truthiness of the returned descriptor.value. Do you have any feedback on what those functions do and how i can improve my tests? Or is this enough?

[bluepnume]

Hi! These are decorators for class methods. You can test them by applying them to a class, e.g.

class Foo {
  value = 0

  @memoized
  foo() {
    this.value += 1;
    return this.value;
  }

  @promise
  bar() {
    return 'bar';
  }
}

let foo = new Foo();

let x = foo.foo()
x = foo.foo()
x = foo.foo()

// x should be 1

foo.bar().then(result => {
   // result should be 'bar'
})