switch from jest to vitest

.knip.jsonc

@@ -17,8 +17,6 @@
   ],
   "ignoreBinaries": ["svelte-check", "docs:build"],
   "ignoreDependencies": [
-    "@xstate-repo/jest-utils",
-    "@xstate-repo/jest-utils/setup",
     "synckit",
     // package.json#exports aren't added as entry points, because `dist/` is .gitignored
     "react",

.vscode/launch.json

@@ -4,32 +4,24 @@
     {
       "type": "node",
       "request": "launch",
-      "name": "Jest Current File",
-      "program": "${workspaceFolder}/node_modules/.bin/jest",
-      "args": ["${file}", "--config", "jest.config.js", "--no-cache"],
+      "name": "Vitest Current Test File",
+      "autoAttachChildProcesses": true,
+      "skipFiles": ["<node_internals>/**", "**/node_modules/**"],
+      "program": "${workspaceRoot}/node_modules/vitest/vitest.mjs",
+      "args": ["run", "${relativeFile}"],
       "console": "integratedTerminal",
-      "internalConsoleOptions": "neverOpen",
-      "windows": {
-        "program": "${workspaceFolder}/node_modules/jest/bin/jest"
-      }
+      "internalConsoleOptions": "neverOpen"
     },
     {
       "type": "node",
       "request": "launch",
-      "name": "Jest Current File (no timeout)",
-      "program": "${workspaceFolder}/node_modules/.bin/jest",
-      "args": [
-        "${file}",
-        "--config",
-        "jest.config.js",
-        "--no-cache",
-        "--testTimeout=2147483647"
-      ],
+      "name": "Vitest Current Test File (no timeout)",
+      "autoAttachChildProcesses": true,
+      "skipFiles": ["<node_internals>/**", "**/node_modules/**"],
+      "program": "${workspaceRoot}/node_modules/vitest/vitest.mjs",
+      "args": ["run", "${relativeFile}", "--testTimeout=2147483647"],
       "console": "integratedTerminal",
-      "internalConsoleOptions": "neverOpen",
-      "windows": {
-        "program": "${workspaceFolder}/node_modules/jest/bin/jest"
-      }
+      "internalConsoleOptions": "neverOpen"
     }
   ]
 }

package.json

@@ -28,8 +28,8 @@
     "build": "preconstruct build",
     "fix": "manypkg fix",
     "typecheck": "tsc",
-    "test": "jest",
-    "test:core": "jest packages/core",
+    "test": "vitest",
+    "test:core": "vitest --project xstate",
     "changeset": "changeset",
     "release": "changeset publish",
     "version": "changeset version && node ./scripts/bump-peer-dep-ranges.js"
@@ -52,33 +52,21 @@
     "@babel/preset-typescript": "^7.23.3",
     "@changesets/changelog-github": "^0.4.8",
     "@changesets/cli": "^2.26.2",
-    "@jest/types": "^29.6.3",
     "@manypkg/cli": "^0.16.1",
     "@manypkg/get-packages": "^1.1.3",
     "@preconstruct/cli": "^2.8.1",
-    "@testing-library/vue": "^6.6.1",
-    "@types/jest": "^29.5.10",
     "@types/node": "^20.14.13",
-    "@vue/compiler-sfc": "^3.0.11",
-    "@vue/vue3-jest": "^29.2.6",
-    "babel-jest": "^29.7.0",
     "babel-preset-solid": "^1.8.4",
+    "happy-dom": "^14.12.3",
     "husky": "^3.1.0",
-    "jest": "^29.7.0",
-    "jest-config": "^29.7.0",
-    "jest-environment-jsdom": "^29.7.0",
-    "jest-resolve": "^29.7.0",
-    "jest-snapshot": "^29.7.0",
-    "jest-watch-typeahead": "^2.2.2",
     "knip": "^5.27.0",
     "lint-staged": "^8.2.1",
     "patch-package": "^6.5.1",
     "prettier": "^3.1.0",
     "prettier-plugin-jsdoc": "^1.3.0",
-    "svelte-jester": "^2.3.2",
     "synckit": "^0.8.5",
     "typescript": "^5.5.4",
-    "vue": "^3.0.11"
+    "vitest": "^2.0.3"
   },
   "husky": {
     "hooks": {

packages/core/package.json

@@ -119,7 +119,6 @@
   "homepage": "https://github.com/statelyai/xstate/tree/main/packages/core#readme",
   "devDependencies": {
     "@scion-scxml/test-framework": "^2.0.15",
-    "@xstate-repo/jest-utils": "*",
     "ajv": "^8.12.0",
     "pkg-up": "^3.1.0",
     "rxjs": "^7.8.0",