fix: add data to the import.meta.hot stub (#11590)

Author: sheremet-va

packages/vitest/src/runtime/moduleRunner/moduleEvaluator.ts

@@ -522,19 +522,24 @@ function removeStyle(id: string) {
   }
 }
 
+function createHotContext() {
+  return {
+    data: {},
+    accept: () => {},
+    acceptExports: () => {},
+    prune: () => {},
+    dispose: () => {},
+    decline: () => {},
+    invalidate: () => {},
+    on: () => {},
+    off: () => {},
+    send: () => {},
+  }
+}
+
 const defaultClientStub = {
   injectQuery: (id: string) => id,
-  createHotContext: () => {
-    return {
-      accept: () => {},
-      prune: () => {},
-      dispose: () => {},
-      decline: () => {},
-      invalidate: () => {},
-      on: () => {},
-      send: () => {},
-    }
-  },
+  createHotContext,
   updateStyle: () => {},
   removeStyle: () => {},
 }
@@ -551,7 +556,7 @@ export function getDefaultRequestStubs(context?: vm.Context): Record<string, any
     }
   }
   const clientStub = vm.runInContext(
-    `(defaultClient) => ({ ...defaultClient, updateStyle: ${updateStyle.toString()}, removeStyle: ${removeStyle.toString()} })`,
+    `(defaultClient) => ({ ...defaultClient, createHotContext: ${createHotContext.toString()}, updateStyle: ${updateStyle.toString()}, removeStyle: ${removeStyle.toString()} })`,
     context,
   )(defaultClientStub)
   return {

test/e2e/test/import-meta-hot.test.ts

@@ -0,0 +1,39 @@
+import { expect, test } from 'vitest'
+import { runInlineTests } from '../../test-utils'
+
+test.for(['forks', 'vmThreads'] as const)(
+  'import.meta.hot has a data object per module in %s',
+  async (pool) => {
+    const testFile = (environment: string) => `
+      // @vitest-environment ${environment}
+      import { expect, test } from 'vitest'
+      import { hot } from './hot.js'
+
+      test('import.meta.hot.data', () => {
+        expect(import.meta.hot.data).toStrictEqual({})
+        expect(hot.data).toStrictEqual({})
+        expect(hot.data).not.toBe(import.meta.hot.data)
+      })
+    `
+    const { stderr, testTree } = await runInlineTests(
+      {
+        'hot.js': `export const hot = import.meta.hot`,
+        'jsdom.test.js': testFile('jsdom'),
+        'happy-dom.test.js': testFile('happy-dom'),
+      },
+      { pool },
+    )
+
+    expect(stderr).toBe('')
+    expect(testTree()).toMatchInlineSnapshot(`
+      {
+        "happy-dom.test.js": {
+          "import.meta.hot.data": "passed",
+        },
+        "jsdom.test.js": {
+          "import.meta.hot.data": "passed",
+        },
+      }
+    `)
+  },
+)