Pulling columns logic out into its own services/controller in a new indexUtils module

spec/javascripts/unit/admin/index_utils/controllers/columns_controller_spec.js.coffee

@@ -0,0 +1,17 @@
+describe "ColumnsCtrl", ->
+  ctrl = null
+  scope = null
+  Columns = null
+
+  beforeEach ->
+    Columns = { columns: { name: { visible: true} } }
+
+    module('admin.indexUtils')
+    inject ($controller, $rootScope) ->
+      scope = $rootScope
+      ctrl = $controller 'ColumnsCtrl', {$scope: scope, Columns: Columns}
+
+  it "initialises data", ->
+    expect(scope.columns).toEqual Columns.columns
+    expect(scope.predicate).toEqual ""
+    expect(scope.reverse).toEqual false

spec/javascripts/unit/admin/index_utils/services/columns.js.coffee

@@ -0,0 +1,15 @@
+describe "Columns service", ->
+  Columns = null
+
+  beforeEach ->
+    module 'admin.indexUtils'
+
+    inject (_Columns_) ->
+      Columns = _Columns_
+
+    Columns.columns = ["something"]
+
+  describe "setting columns", ->
+    it "sets resets @columns and copies each column of the provided object across", ->
+      Columns.setColumns({ name: { visible: true } })
+      expect(Columns.columns).toEqual { name: { visible: true } }