chore: migrate to vitest for 10x faster tests (#257)

* chore migrate to vitest

* chore: cleanup jest stuff

* chore: install the coverage dep

.github/workflows/run-test-suite.yml

@@ -1,5 +1,4 @@
-name: Run Jest Tests
-
+name: Run Unit Tests
 on:
   push:
     branches:
@@ -21,11 +20,5 @@ jobs:
     - name: Install dependencies
       run: npm ci
 
-    - name: Run Jest Test Suite
+    - name: Run Vitest Suite
       run: npm test
-    
-    - name: Publish Test Report
-      if: always()
-      uses: EnricoMi/publish-unit-test-result-action@v1
-      with:
-        files: test-results/**/results.xml

__tests__/utils/app/importExports.test.ts

@@ -1,6 +1,8 @@
 import { ExportFormatV1, ExportFormatV2 } from '@/types/export';
 import { OpenAIModels, OpenAIModelID } from '@/types/openai';
 import { DEFAULT_SYSTEM_PROMPT } from '@/utils/app/const';
+import { it, describe, expect } from 'vitest';
+
 import {
   cleanData,
   isExportFormatV1,

jest.config.ts

@@ -1,22 +0,0 @@
-import type { Config } from 'jest';
-
-const config: Config = {
-  testEnvironment: 'jest-environment-jsdom',
-  verbose: true,
-  preset: 'ts-jest',
-  moduleNameMapper: {
-    '^@/(.*)$': '<rootDir>/$1',
-  },
-  reporters: [
-    'default',
-    [
-      'jest-junit',
-      {
-        outputDirectory: 'test-results/jest',
-        outputName: 'results.xml',
-      },
-    ],
-  ],
-};
-
-export default config;

package.json

@@ -8,7 +8,8 @@
     "start": "next start",
     "lint": "next lint",
     "format": "prettier --write .",
-    "test": "jest"
+    "test": "vitest",
+    "coverage": "vitest run --coverage"
   },
   "dependencies": {
     "@dqbd/tiktoken": "^1.0.2",
@@ -30,26 +31,20 @@
   },
   "devDependencies": {
     "@tailwindcss/typography": "^0.5.9",
-    "@testing-library/jest-dom": "^5.16.5",
-    "@testing-library/react": "^14.0.0",
-    "@types/jest": "^29.5.0",
     "@types/node": "18.15.0",
     "@types/react": "18.0.28",
     "@types/react-dom": "18.0.11",
     "@types/react-syntax-highlighter": "^15.5.6",
     "@types/uuid": "^9.0.1",
+    "@vitest/coverage-c8": "^0.29.7",
     "autoprefixer": "^10.4.14",
     "eslint": "8.36.0",
     "eslint-config-next": "13.2.4",
-    "jest": "^29.5.0",
-    "jest-environment-jsdom": "^29.5.0",
-    "jest-junit": "^15.0.0",
     "postcss": "^8.4.21",
     "prettier": "^2.8.7",
     "prettier-plugin-tailwindcss": "^0.2.5",
     "tailwindcss": "^3.2.7",
-    "ts-jest": "^29.0.5",
-    "ts-node": "^10.9.1",
-    "typescript": "4.9.5"
+    "typescript": "4.9.5",
+    "vitest": "^0.29.7"
   }
 }

tsconfig.json

@@ -1,11 +1,7 @@
 {
   "compilerOptions": {
     "target": "es5",
-    "lib": [
-      "dom",
-      "dom.iterable",
-      "esnext"
-    ],
+    "lib": ["dom", "dom.iterable", "esnext"],
     "allowJs": true,
     "skipLibCheck": true,
     "strict": true,
@@ -18,22 +14,11 @@
     "isolatedModules": true,
     "jsx": "preserve",
     "incremental": true,
+    "types": ["vitest/globals"],
     "paths": {
-      "@/*": [
-        "./*"
-      ]
+      "@/*": ["./*"]
     }
   },
-  "include": [
-    "next-env.d.ts",
-    "**/*.ts",
-    "**/*.tsx"
-  ],
-  "exclude": [
-    "node_modules"
-  ],
-  "jest": {
-    "preset": "ts-jest",
-    "testEnvironment": "jsdom"
-  }
-}
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"],
+  "exclude": ["node_modules"]
+}

vitest.config.ts

@@ -0,0 +1,10 @@
+import { defineConfig } from 'vite';
+import path from 'path';
+
+export default defineConfig({
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './'),
+    },
+  },
+});