[FIX] JWEditor: Await the new stop event mutex + adapat some tests

Author: sebgeelen

packages/core/src/JWEditor.ts

@@ -463,7 +463,7 @@ export class JWEditor {
      * Stop this editor instance.
      */
     async stop(): Promise<void> {
-        this.nextEventMutex(async execCommand => {
+        await this.nextEventMutex(async execCommand => {
             if (this.memory) {
                 this.memory.create('stop');
                 this.memory.switchTo('stop'); // Unfreeze the memory.

packages/plugin-dom-layout/test/DomLayout.test.ts

@@ -122,7 +122,12 @@ describe('DomLayout', () => {
                 hasError = true;
                 expect(error.message).to.include('default');
             });
-            await editor.stop();
+            expect(hasError).to.equal(true);
+            hasError = false;
+            await editor.stop().catch(error => {
+                hasError = true;
+                expect(error.message).to.include('default');
+            });
             expect(hasError).to.equal(true);
         });
     });
@@ -149,7 +154,12 @@ describe('DomLayout', () => {
                 hasError = true;
                 expect(error.message).to.include('default');
             });
-            await editor.stop();
+            expect(hasError).to.equal(true);
+            hasError = false;
+            await editor.stop().catch(error => {
+                hasError = true;
+                expect(error.message).to.include('default');
+            });
             expect(hasError).to.equal(true);
         });
         it('should replace the target by the template (template as string)', async () => {