Adding customers controller, service and resource

spec/javascripts/unit/admin/customers/controllers/customers_controller_spec.js.coffee

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+describe "CustomersCtrl", ->
+  ctrl = null
+  scope = null
+  Customers = null
+
+  beforeEach ->
+    shops = "list of shops"
+
+    module('admin.customers')
+    inject ($controller, $rootScope, _Customers_) ->
+      scope = $rootScope
+      Customers = _Customers_
+      ctrl = $controller 'customersCtrl', {$scope: scope, Customers: Customers, shops: shops}
+
+  describe "initialise()", ->
+    beforeEach ->
+      spyOn(Customers, "index").andReturn "list of customers"
+      scope.shop = {id: 1}
+      scope.initialise()
+
+    it "calls Customers#index with the correct params", ->
+      expect(Customers.index).toHaveBeenCalledWith({enterprise_id: 1})
+
+    it "resets $scope.customers with the result of Customers#index", ->
+      expect(scope.customers).toEqual "list of customers"

spec/javascripts/unit/admin/customers/services/customers_spec.js.coffee

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+describe "Customers service", ->
+  Customers = CustomerResource = customers = $httpBackend = null
+
+  beforeEach ->
+    module 'admin.customers'
+
+    inject ($q, _$httpBackend_, _Customers_, _CustomerResource_) ->
+      Customers = _Customers_
+      CustomerResource = _CustomerResource_
+      $httpBackend = _$httpBackend_
+      $httpBackend.expectGET('/admin/customers.json?enterprise_id=2').respond 200, [{ id: 5, email: 'someone@email.com'}]
+
+  describe "#index", ->
+    result = null
+
+    beforeEach ->
+      expect(Customers.loaded).toBe false
+      result = Customers.index(enterprise_id: 2)
+      $httpBackend.flush()
+
+    it "stores returned data in @customers, with ids as keys", ->
+      # This is super weird and freaking annoying. I think resource results have extra
+      # properties ($then, $promise) that cause them to not be equal to the reponse object
+      # provided to the expectGET clause above.
+      expect(Customers.customers).toEqual { 5: new CustomerResource({ id: 5, email: 'someone@email.com'}) }
+
+    it "returns @customers", ->
+      expect(result).toEqual Customers.customers
+
+    it "sets @loaded to true", ->
+      expect(Customers.loaded).toBe true