From 5ca9e04979be773d373a3d3649afcd649b853e5c Mon Sep 17 00:00:00 2001
From: sapphi-red <49056869+sapphi-red@users.noreply.github.com>
Date: Tue, 12 Nov 2024 16:53:45 +0900
Subject: [PATCH 1/4] chore: set `resolve.mainFields` and `resolve.conditions`
 for SSR environment

---
 packages/vitest/src/node/plugins/index.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/vitest/src/node/plugins/index.ts b/packages/vitest/src/node/plugins/index.ts
index 5b687e27e421..3402ee3e3c83 100644
--- a/packages/vitest/src/node/plugins/index.ts
+++ b/packages/vitest/src/node/plugins/index.ts
@@ -113,6 +113,17 @@ export async function VitestPlugin(
             // https://github.com/vitejs/vite/pull/16453
             emptyOutDir: false,
           },
+          // @ts-expect-error environments only exists in Vite 6
+          environments: {
+            ssr: {
+              resolve: {
+                // by default Vite resolves `module` field, which not always a native ESM module
+                // setting this option can bypass that and fallback to cjs version
+                mainFields: [],
+                conditions: ['node'],
+              },
+            },
+          },
           test: {
             poolOptions: {
               threads: {

From bfa17d8b143cdb2ce856318c14f04ae90fd80be0 Mon Sep 17 00:00:00 2001
From: sapphi-red <49056869+sapphi-red@users.noreply.github.com>
Date: Wed, 13 Nov 2024 11:14:43 +0900
Subject: [PATCH 2/4] chore: add it to workspace plugin too

---
 packages/vitest/src/node/plugins/workspace.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/vitest/src/node/plugins/workspace.ts b/packages/vitest/src/node/plugins/workspace.ts
index bdffdbe16117..1961eaffe172 100644
--- a/packages/vitest/src/node/plugins/workspace.ts
+++ b/packages/vitest/src/node/plugins/workspace.ts
@@ -96,6 +96,17 @@ export function WorkspaceVitestPlugin(
               ),
             },
           },
+          // @ts-expect-error environments only exists in Vite 6
+          environments: {
+            ssr: {
+              resolve: {
+                // by default Vite resolves `module` field, which not always a native ESM module
+                // setting this option can bypass that and fallback to cjs version
+                mainFields: [],
+                conditions: ['node'],
+              },
+            },
+          },
           test: {
             name,
           },

From 80f87af81c97c919c8c773e6fd46fad40b37540b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=BF=A0=20/=20green?= <green@sapphi.red>
Date: Wed, 13 Nov 2024 13:02:30 +0900
Subject: [PATCH 3/4] chore: use ts-ignore

---
 packages/vitest/src/node/plugins/index.ts     | 3 ++-
 packages/vitest/src/node/plugins/workspace.ts | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/vitest/src/node/plugins/index.ts b/packages/vitest/src/node/plugins/index.ts
index 3402ee3e3c83..3aa5afa36941 100644
--- a/packages/vitest/src/node/plugins/index.ts
+++ b/packages/vitest/src/node/plugins/index.ts
@@ -113,7 +113,8 @@ export async function VitestPlugin(
             // https://github.com/vitejs/vite/pull/16453
             emptyOutDir: false,
           },
-          // @ts-expect-error environments only exists in Vite 6
+          // eslint-disable-next-line ts/ban-ts-comment 
+          // @ts-ignore Vite 6 compat
           environments: {
             ssr: {
               resolve: {
diff --git a/packages/vitest/src/node/plugins/workspace.ts b/packages/vitest/src/node/plugins/workspace.ts
index 1961eaffe172..5d204d254eac 100644
--- a/packages/vitest/src/node/plugins/workspace.ts
+++ b/packages/vitest/src/node/plugins/workspace.ts
@@ -96,7 +96,8 @@ export function WorkspaceVitestPlugin(
               ),
             },
           },
-          // @ts-expect-error environments only exists in Vite 6
+          // eslint-disable-next-line ts/ban-ts-comment 
+          // @ts-ignore Vite 6 compat
           environments: {
             ssr: {
               resolve: {

From 45c904b22170555137924ace87d97c1e65265ac5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=BF=A0=20/=20green?= <green@sapphi.red>
Date: Wed, 13 Nov 2024 13:07:05 +0900
Subject: [PATCH 4/4] chore: fix format

---
 packages/vitest/src/node/plugins/index.ts     | 2 +-
 packages/vitest/src/node/plugins/workspace.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/vitest/src/node/plugins/index.ts b/packages/vitest/src/node/plugins/index.ts
index 3aa5afa36941..b24a0e06fce8 100644
--- a/packages/vitest/src/node/plugins/index.ts
+++ b/packages/vitest/src/node/plugins/index.ts
@@ -113,7 +113,7 @@ export async function VitestPlugin(
             // https://github.com/vitejs/vite/pull/16453
             emptyOutDir: false,
           },
-          // eslint-disable-next-line ts/ban-ts-comment 
+          // eslint-disable-next-line ts/ban-ts-comment
           // @ts-ignore Vite 6 compat
           environments: {
             ssr: {
diff --git a/packages/vitest/src/node/plugins/workspace.ts b/packages/vitest/src/node/plugins/workspace.ts
index 5d204d254eac..8f4e3c9027e0 100644
--- a/packages/vitest/src/node/plugins/workspace.ts
+++ b/packages/vitest/src/node/plugins/workspace.ts
@@ -96,7 +96,7 @@ export function WorkspaceVitestPlugin(
               ),
             },
           },
-          // eslint-disable-next-line ts/ban-ts-comment 
+          // eslint-disable-next-line ts/ban-ts-comment
           // @ts-ignore Vite 6 compat
           environments: {
             ssr: {