feat: jest 설치 및 설정

Author: seokzin

jest.config.ts

@@ -0,0 +1,8 @@
+export default {
+  preset: 'ts-jest',
+  testEnvironment: 'jsdom',
+  testMatch: ['**/__tests__/**/*.ts?(x)', '**/?(*.)+(test).ts?(x)'],
+  transform: {
+    '^.+\\.(js|ts)$': 'ts-jest',
+  },
+};

package.json

@@ -1,8 +1,17 @@
 {
+  "type": "module",
+  "scripts": {
+    "test": "jest"
+  },
   "dependencies": {
-    "ts-node": "^10.4.0"
+    "ts-node": "^10.4.0",
+    "typescript": "^4.8.3"
   },
   "devDependencies": {
-    "@types/node": "^18.7.18"
+    "@types/jest": "^29.0.3",
+    "@types/node": "^18.7.18",
+    "jest": "^29.0.3",
+    "jest-environment-jsdom": "^29.0.3",
+    "ts-jest": "^29.0.1"
   }
 }

tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "compilerOptions": {
+    "types": ["jest", "node"]
+  }
+}