Recently I had a problem where in an Angular unit test where I had an object that was being initialized in ngOnInit from a service. As far as I could tell, everything should be working, but the test would fail because I was trying to set a property on the object before it had finished … [Read more…]
I find that writing unit tests in JavaScript kind of sucks, so this post will (hopefully) serve as a cheat sheet of all the stuff I keep looking up. As such, it will be updated as I learn new stuffs. How To: scope test run to specific tests Remember to set it back before you … [Read more…]
I was trying to be good and keep up with my Karma unit tests in my Angular 5 Typescript project, but I was running in to a really weird error that left a lot to be desired: The logs in the console window are not helpful either… Chrome 63.0.3239 (Windows 10 0.0.0) ERROR Uncaught NetworkError: … [Read more…]
Say that you created a service that essentially wraps Angular’s HttpClient calls: And say that you called that in a component: And now you want to test the Get function to make sure that myValue is set to the value returned by the service. If you try to create a spy on the function in … [Read more…]