test: add test for vitejs#10430

playground/config/__tests__/load.spec.ts

@@ -5,7 +5,8 @@ import { expect, it } from 'vitest'
 it('loadConfigFromFile', async () => {
   const { config } = await loadConfigFromFile(
     {} as any,
-    resolve(__dirname, '../packages/entry/vite.config.ts')
+    resolve(__dirname, '../packages/entry/vite.config.ts'),
+    resolve(__dirname, '../packages/entry')
   )
   expect(config).toMatchInlineSnapshot(`
     {
@@ -19,6 +20,7 @@ it('loadConfigFromFile', async () => {
           4,
         ],
       ],
+      "moduleCondition": "require condition",
     }
   `)
 })

playground/config/packages/entry/package.json

@@ -1,3 +1,6 @@
 {
-  "name": "@vite/test-config-entry"
+  "name": "@vite/test-config-entry",
+  "dependencies": {
+    "@vite/test-config-plugin-module-condition": "link:../plugin-module-condition"
+  }
 }

playground/config/packages/entry/vite.config.ts

@@ -1,5 +1,7 @@
+import moduleCondition from '@vite/test-config-plugin-module-condition'
 import { array } from '../siblings/foo'
 
 export default {
-  array
+  array,
+  moduleCondition
 }

playground/config/packages/plugin-module-condition/index.cjs

@@ -0,0 +1 @@
+module.exports = 'require condition'

playground/config/packages/plugin-module-condition/index.d.ts

@@ -0,0 +1,2 @@
+const str: string
+export default str

playground/config/packages/plugin-module-condition/index.mjs

@@ -0,0 +1 @@
+export default 'import condition'

playground/config/packages/plugin-module-condition/module.mjs

@@ -0,0 +1 @@
+export default 'module condition'

playground/config/packages/plugin-module-condition/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "@vite/test-config-plugin-module-condition",
+  "exports": {
+    ".": {
+      "types": "./index.d.ts",
+      "module": "./module.mjs",
+      "import": "./index.mjs",
+      "require": "./index.cjs"
+    }
+  }
+}