From d357e33846d08879f14f97bacc686475615d3725 Mon Sep 17 00:00:00 2001
From: KonpekiCode <512054675@qq.com>
Date: Mon, 13 Jun 2022 22:50:44 +0800
Subject: [PATCH] fix: default export module transformation for vitest spy
 (#8567)

---
 packages/vite/src/node/ssr/__tests__/ssrTransform.spec.ts | 6 +++---
 packages/vite/src/node/ssr/ssrTransform.ts                | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/vite/src/node/ssr/__tests__/ssrTransform.spec.ts b/packages/vite/src/node/ssr/__tests__/ssrTransform.spec.ts
index f759a51e60ff58..fbf7bb7bbd22ad 100644
--- a/packages/vite/src/node/ssr/__tests__/ssrTransform.spec.ts
+++ b/packages/vite/src/node/ssr/__tests__/ssrTransform.spec.ts
@@ -306,7 +306,7 @@ test('should declare variable for imported super class', async () => {
     class A extends Foo {}
     class B extends Foo {}
     Object.defineProperty(__vite_ssr_exports__, \\"B\\", { enumerable: true, configurable: true, get(){ return B }});
-    Object.defineProperty(__vite_ssr_exports__, \\"default\\", { enumerable: true, value: A });"
+    Object.defineProperty(__vite_ssr_exports__, \\"default\\", { enumerable: true, configurable: true, value: A });"
   `)
 })
 
@@ -338,7 +338,7 @@ test('should handle default export variants', async () => {
   ).toMatchInlineSnapshot(`
     "function foo() {}
     foo.prototype = Object.prototype;
-    Object.defineProperty(__vite_ssr_exports__, \\"default\\", { enumerable: true, value: foo });"
+    Object.defineProperty(__vite_ssr_exports__, \\"default\\", { enumerable: true, configurable: true, value: foo });"
   `)
   // default named classes
   expect(
@@ -353,7 +353,7 @@ test('should handle default export variants', async () => {
     "class A {}
     class B extends A {}
     Object.defineProperty(__vite_ssr_exports__, \\"B\\", { enumerable: true, configurable: true, get(){ return B }});
-    Object.defineProperty(__vite_ssr_exports__, \\"default\\", { enumerable: true, value: A });"
+    Object.defineProperty(__vite_ssr_exports__, \\"default\\", { enumerable: true, configurable: true, value: A });"
   `)
 })
 
diff --git a/packages/vite/src/node/ssr/ssrTransform.ts b/packages/vite/src/node/ssr/ssrTransform.ts
index d7dc610cb82f47..e7f0ef6b4aab3b 100644
--- a/packages/vite/src/node/ssr/ssrTransform.ts
+++ b/packages/vite/src/node/ssr/ssrTransform.ts
@@ -188,7 +188,7 @@ async function ssrTransformScript(
         s.remove(node.start, node.start + 15 /* 'export default '.length */)
         s.append(
           `\nObject.defineProperty(${ssrModuleExportsKey}, "default", ` +
-            `{ enumerable: true, value: ${name} });`
+            `{ enumerable: true, configurable: true, value: ${name} });`
         )
       } else {
         // anonymous default exports