add jest

jest.config.js

@@ -0,0 +1,33 @@
+export default {
+  collectCoverageFrom: [
+    "**/**/*.{ts,tsx}",
+    "!**/**/*.test.{ts,tsx}",
+    "!**/src/types/**",
+    "!**/node_modules/**",
+    "!**/dist/**",
+    "!**/__tests__/**",
+  ],
+  projects: [
+    {
+      clearMocks: true,
+      resetMocks: true,
+      restoreMocks: true,
+      rootDir: ".",
+      roots: ["<rootDir>/src"],
+      transformIgnorePatterns: ["[/\\\\]node_modules[/\\\\].+\\.(js|jsx)$"],
+      displayName: {
+        name: "@waku/react",
+        color: "cyan",
+      },
+      testMatch: ["**/__tests__/**/*.(spec|test).ts?(x)"],
+      transform: {
+        "^.+\\.tsx?$": "@swc/jest",
+      },
+      testEnvironment: "jsdom",
+    },
+  ],
+  watchPlugins: [
+    "jest-watch-typeahead/filename",
+    "jest-watch-typeahead/testname",
+  ],
+};

package.json

@@ -49,7 +49,8 @@
     "lint:fix": "npm run lint -- --fix",
     "prettier:fix": "prettier --config .prettierrc --write \"**/*.{js,ts,tsx}\"",
     "type": "tsc --noEmit",
-    "test": "echo 0;",
+    "test": "jest --config ./jest.config.js",
+    "test:coverage": "npm run test -- --coverage",
     "prepublish": "npm run fix && npm run type && npm run test && npm run build"
   },
   "engines": {
@@ -62,7 +63,11 @@
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "^24.0.1",
+    "@swc/jest": "^0.2.24",
+    "@testing-library/jest-dom": "^5.16.5",
+    "@types/jest": "^29.4.0",
     "@types/react": "^18.0.28",
+    "@types/testing-library__jest-dom": "^5.14.5",
     "@typescript-eslint/eslint-plugin": "^5.52.0",
     "@waku/interfaces": "^0.0.7",
     "eslint": "^8.34.0",
@@ -71,6 +76,9 @@
     "eslint-plugin-react": "^7.32.2",
     "eslint-plugin-react-hooks": "^4.6.0",
     "eslint-plugin-simple-import-sort": "^10.0.0",
+    "jest": "^29.4.3",
+    "jest-environment-jsdom": "^29.4.3",
+    "jest-watch-typeahead": "^2.2.2",
     "prettier": "^2.8.4",
     "rimraf": "^4.1.2",
     "rollup-plugin-peer-deps-external": "^2.2.4",