From 9cf3e366e49ec6c441b8259ecd5b4c449189456a Mon Sep 17 00:00:00 2001
From: tada5hi <peter.placzek1996@gmail.com>
Date: Thu, 18 Jan 2024 20:33:25 +0100
Subject: [PATCH] fix: nested default exports with using dynamic import

---
 src/loader/built-in/module/utils.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/loader/built-in/module/utils.ts b/src/loader/built-in/module/utils.ts
index 11f5e27c..7b017396 100644
--- a/src/loader/built-in/module/utils.ts
+++ b/src/loader/built-in/module/utils.ts
@@ -20,6 +20,18 @@ export function toModuleRecord(
     data: unknown,
 ) {
     if (isESModule(data)) {
+        // @see https://github.com/testing-library/user-event/issues/813
+        // @see https://stackoverflow.com/questions/62717394/export-default-class-exports-double-nested-default
+        if (
+            isESModule(data.default) &&
+            data.default.default
+        ) {
+            return {
+                ...data,
+                default: data.default.default,
+            };
+        }
+
         return data;
     }