Allow vitest in non-globals mode

.vitest.config.ts

@@ -0,0 +1,16 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    setupFiles: [
+      //   "<rootDir>/test/__mocks__/requestAnimationFrame.js",
+      "test/setup_vitest.js",
+      "./vitest.js",
+    ],
+    snapshotSerializers: ["enzyme-to-json/serializer"],
+    environment: "jsdom",
+    // testPathIgnorePatterns: ["<rootDir>/test/native", "<rootDir>/test/preact"],
+
+    include: ["**/*.vitest.jsx"],
+  },
+});

package.json

@@ -8,7 +8,8 @@
     "native",
     "serializer",
     "src",
-    "typings"
+    "typings",
+    "vitest.js"
   ],
   "repository": "github:styled-components/jest-styled-components",
   "bugs": {
@@ -17,11 +18,12 @@
   "author": "Michele Bertoli",
   "license": "MIT",
   "scripts": {
-    "test": "yarn test:web && yarn test:native && yarn test:preact",
+    "test": "yarn test:web && yarn test:native && yarn test:preact && yarn test:vitest",
     "test:web": "jest --color",
     "test:web:watch": "jest --watch",
     "test:native": "jest --color --config .jest.native.json",
-    "test:preact": "jest --color --config .jest.preact.json"
+    "test:preact": "jest --color --config .jest.preact.json",
+    "test:vitest": "yarn vitest --config .vitest.config.ts"
   },
   "devDependencies": {
     "@babel/core": "^7.0.0",

src/index.js

@@ -1,11 +1,7 @@
-const toHaveStyleRule = require('./toHaveStyleRule');
-const styleSheetSerializer = require('./styleSheetSerializer');
-const { resetStyleSheet } = require('./utils');
+const styleSheetSerializer = require("./styleSheetSerializer");
+const init = require("./init");
 
-global.beforeEach(resetStyleSheet);
-
-expect.addSnapshotSerializer(styleSheetSerializer);
-expect.extend({ toHaveStyleRule });
+init(global.beforeEach, expect);
 
 module.exports = {
   styleSheetSerializer,

src/init.js

@@ -0,0 +1,13 @@
+const toHaveStyleRule = require('./toHaveStyleRule');
+const styleSheetSerializer = require('./styleSheetSerializer');
+const { resetStyleSheet } = require('./utils');
+
+function init(beforeEach, expect) {
+    beforeEach(resetStyleSheet);
+
+    expect.addSnapshotSerializer(styleSheetSerializer);
+    expect.extend({ toHaveStyleRule });
+
+}
+
+module.exports = init