Shows how to get a reference to a provider, before "provider.$get()" is called, for testing.

providerTest.js

describe('myServiceProvider', function () {
	var p;

  	// Uses the "module()" method to get a reference to the provider during the "config" phase
	beforeEach(module('myModule', function (myServiceProvider) {
		p = myServiceProvider;
	}));
	
	// Runs "inject()" so that the module gets instantiated.
	// Because "myService" isn't injected, the "myServiceProvider" should still be pristine
	beforeEach(inject(function () {}));
	
	// ...
});