fix tests

src/vs/editor/contrib/suggest/suggestWidget.ts

@@ -790,10 +790,13 @@ export class SuggestWidget implements IContentWidget, IDisposable {
 	}
 
 	private _layout(size: dom.Dimension | undefined): void {
-
 		if (!this.editor.hasModel()) {
 			return;
 		}
+		if (!this.editor.getDomNode()) {
+			// happens when running tests
+			return;
+		}
 
 		let height = size?.height;
 		let width = size?.width;