Use ES6 import in SelectorManager tests

test/specs/plugin_manager/index.js

@@ -1,4 +1,4 @@
-const PluginManager = require('plugin_manager');
+import PluginManager from 'plugin_manager';
 
 describe('PluginManager', () => {
   describe('Main', () => {

test/specs/selector_manager/e2e/ClassManager.js

@@ -1,5 +1,5 @@
-const Selectors = require('selector_manager/model/Selectors');
-const ClassTagsView = require('selector_manager/view/ClassTagsView');
+import Selectors from 'selector_manager/model/Selectors';
+import ClassTagsView from 'selector_manager/view/ClassTagsView';
 
 module.exports = {
   run() {

test/specs/selector_manager/index.js

@@ -1,10 +1,10 @@
-var SelectorManager = require('selector_manager');
-var Selector = require('selector_manager/model/Selector');
-var Models = require('./model/SelectorModels');
-var ClassTagView = require('./view/ClassTagView');
-var ClassTagsView = require('./view/ClassTagsView');
-var e2e = require('./e2e/ClassManager');
-var Editor = require('editor/model/Editor');
+import SelectorManager from 'selector_manager';
+import Selector from 'selector_manager/model/Selector';
+import Models from './model/SelectorModels';
+import ClassTagView from './view/ClassTagView';
+import ClassTagsView from './view/ClassTagsView';
+import e2e from './e2e/ClassManager';
+import Editor from 'editor/model/Editor';
 
 describe('SelectorManager', () => {
   describe('Main', () => {

test/specs/selector_manager/model/SelectorModels.js

@@ -1,5 +1,5 @@
-const Selector = require('selector_manager/model/Selector');
-const Selectors = require('selector_manager/model/Selectors');
+import Selector from 'selector_manager/model/Selector';
+import Selectors from 'selector_manager/model/Selectors';
 
 module.exports = {
   run() {

test/specs/selector_manager/view/ClassTagView.js

@@ -1,6 +1,6 @@
-const EditorModel = require('editor/model/Editor');
-const ClassTagView = require('selector_manager/view/ClassTagView');
-const Selectors = require('selector_manager/model/Selectors');
+import EditorModel from 'editor/model/Editor';
+import ClassTagView from 'selector_manager/view/ClassTagView';
+import Selectors from 'selector_manager/model/Selectors';
 
 module.exports = {
   run() {

test/specs/selector_manager/view/ClassTagsView.js

@@ -1,7 +1,7 @@
-const ClassTagsView = require('selector_manager/view/ClassTagsView');
-const Selectors = require('selector_manager/model/Selectors');
-const Component = require('dom_components/model/Component');
-const Editor = require('editor/model/Editor');
+import ClassTagsView from 'selector_manager/view/ClassTagsView';
+import Selectors from 'selector_manager/model/Selectors';
+import Component from 'dom_components/model/Component';
+import Editor from 'editor/model/Editor';
 
 module.exports = {
   run() {