Add test for ListSection#clone

src/js/models/list-section.js

@@ -51,7 +51,7 @@ export default class ListSection extends Section {
   }
 
   clone() {
-    let newSection = this.builder.createListSection();
+    let newSection = this.builder.createListSection(this.tagName);
     forEach(this.items, i => newSection.items.append(i.clone()));
     return newSection;
   }

tests/unit/editor/post/insert-post-test.js

@@ -7,7 +7,7 @@ const { module, test } = Helpers;
 
 let editor, editorElement, postEditor, renderedRange;
 // see https://github.com/bustlelabs/mobiledoc-kit/issues/259
-module('Unit: PostEditor: #insertPost XXX', {
+module('Unit: PostEditor: #insertPost', {
   beforeEach() {
     editorElement = $('#editor')[0];
   },

tests/unit/models/list-section-test.js

@@ -0,0 +1,24 @@
+import PostNodeBuilder from 'mobiledoc-kit/models/post-node-builder';
+import TestHelpers from '../../test-helpers';
+
+const {module, test} = TestHelpers;
+
+let builder;
+module('Unit: List Section', {
+  beforeEach() {
+    builder = new PostNodeBuilder();
+  },
+  afterEach() {
+    builder = null;
+  }
+});
+
+test('cloning a list section creates the same type of list section', (assert) => {
+  let item = builder.createListItem([builder.createMarker('abc')]);
+  let list = builder.createListSection('ol', [item]);
+  let cloned = list.clone();
+
+  assert.equal(list.tagName, cloned.tagName);
+  assert.equal(list.items.length, cloned.items.length);
+  assert.equal(list.items.head.text, cloned.items.head.text);
+});