🚀[FEATURE]: Add test helper for @Select

[wouterv]

Feature Request

When I am unit testing my components that use a store, I often just want to mock the store to check whether the right dispatch methods were called.

However when the component contains @select you'll get a errors like:

Error: SelectFactory not connected to store!

Now we can use ugly hacks like the following to get rid of the errors:

Object.defineProperty(component, 'active$', { writable: true });
component.active$ = of([]);

But it would be nicer if we have the ability to have some helpers to mock the selects, or let the SelectFactory be mockable somehow.

See also: #482

[markwhitfeld]

I agree that this is very much needed.
Could you propose what you would like this testing api to look like?

[SarikaVanapalli]

Is there a way to mock @select options in an angular component with mock store? I don't see much documentation around this anywhere.

[splincode]

This problem is now considered here: ngxs-labs/testing#4

[arturovt]

We have deprecated the select decorator since it has issues with the SelectFactory (it basically served as a service locator). No more work is going to be done for the select decorator.