1 files changed, 20 insertions, 4 deletions
diff --git a/spec/frontend/content_editor/services/content_editor_spec.js b/spec/frontend/content_editor/services/content_editor_spec.js
index 3bc72b13302..5b7a27b501d 100644
--- a/spec/frontend/content_editor/services/content_editor_spec.js
+++ b/spec/frontend/content_editor/services/content_editor_spec.js
@@ -11,6 +11,7 @@ describe('content_editor/services/content_editor', () => {
   let contentEditor;
   let serializer;
   let deserializer;
+  let languageLoader;
   let eventHub;
   let doc;
   let p;
@@ -27,8 +28,15 @@ describe('content_editor/services/content_editor', () => {
 
     serializer = { deserialize: jest.fn() };
     deserializer = { deserialize: jest.fn() };
+    languageLoader = { loadLanguagesFromDOM: jest.fn() };
     eventHub = eventHubFactory();
-    contentEditor = new ContentEditor({ tiptapEditor, serializer, deserializer, eventHub });
+    contentEditor = new ContentEditor({
+      tiptapEditor,
+      serializer,
+      deserializer,
+      eventHub,
+      languageLoader,
+    });
   });
 
   describe('.dispose', () => {
@@ -43,10 +51,12 @@ describe('content_editor/services/content_editor', () => {
 
   describe('when setSerializedContent succeeds', () => {
     let document;
+    const dom = {};
+    const testMarkdown = '**bold text**';
 
     beforeEach(() => {
       document = doc(p('document'));
-      deserializer.deserialize.mockResolvedValueOnce({ document });
+      deserializer.deserialize.mockResolvedValueOnce({ document, dom });
     });
 
     it('emits loadingContent and loadingSuccess event in the eventHub', () => {
@@ -59,14 +69,20 @@ describe('content_editor/services/content_editor', () => {
         expect(loadingContentEmitted).toBe(true);
       });
 
-      contentEditor.setSerializedContent('**bold text**');
+      contentEditor.setSerializedContent(testMarkdown);
     });
 
     it('sets the deserialized document in the tiptap editor object', async () => {
-      await contentEditor.setSerializedContent('**bold text**');
+      await contentEditor.setSerializedContent(testMarkdown);
 
       expect(contentEditor.tiptapEditor.state.doc.toJSON()).toEqual(document.toJSON());
     });
+
+    it('passes deserialized DOM document to language loader', async () => {
+      await contentEditor.setSerializedContent(testMarkdown);
+
+      expect(languageLoader.loadLanguagesFromDOM).toHaveBeenCalledWith(dom);
+    });
   });
 
   describe('when setSerializedContent fails', () => {