Add jest

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

package.json

@@ -13,7 +13,8 @@
     "lint:js": "eslint --max-warnings 0 src",
     "lint:types": "tsc",
     "i18n": "node_modules/i18next-parser/bin/cli.js",
-    "i18n:check": "node_modules/i18next-parser/bin/cli.js --fail-on-warnings --fail-on-update"
+    "i18n:check": "node_modules/i18next-parser/bin/cli.js --fail-on-warnings --fail-on-update",
+    "test": "jest"
   },
   "dependencies": {
     "@juggle/resize-observer": "^3.3.1",
@@ -51,8 +52,8 @@
     "pako": "^2.0.4",
     "postcss-preset-env": "^7",
     "re-resizable": "^6.9.0",
-    "react": "^17.0.0",
-    "react-dom": "^17.0.0",
+    "react": "18",
+    "react-dom": "18",
     "react-i18next": "^11.18.6",
     "react-json-view": "^1.21.3",
     "react-router": "6",
@@ -66,10 +67,13 @@
     "@babel/core": "^7.16.5",
     "@matrix-org/olm": "https://gitlab.matrix.org/api/v4/projects/27/packages/npm/@matrix-org/olm/-/@matrix-org/olm-3.2.8.tgz",
     "@storybook/react": "^6.5.0-alpha.5",
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "^13.4.0",
     "@types/request": "^2.48.8",
     "@typescript-eslint/eslint-plugin": "^5.22.0",
     "@typescript-eslint/parser": "^5.22.0",
     "babel-loader": "^8.2.3",
+    "babel-plugin-transform-vite-meta-env": "^1.0.3",
     "eslint": "^8.14.0",
     "eslint-config-google": "^0.14.0",
     "eslint-config-prettier": "^8.5.0",
@@ -79,6 +83,9 @@
     "eslint-plugin-react": "^7.29.4",
     "eslint-plugin-react-hooks": "^4.5.0",
     "i18next-parser": "^6.6.0",
+    "identity-obj-proxy": "^3.0.0",
+    "jest": "^29.2.2",
+    "jest-environment-jsdom": "^29.2.2",
     "prettier": "^2.6.2",
     "sass": "^1.42.1",
     "storybook-builder-vite": "^0.1.12",
@@ -87,5 +94,19 @@
     "vite": "^2.4.2",
     "vite-plugin-html-template": "^1.1.0",
     "vite-plugin-svgr": "^0.4.0"
+  },
+  "jest": {
+    "testEnvironment": "jsdom",
+    "testMatch": [
+      "<rootDir>/test/**/*-test.[jt]s?(x)"
+    ],
+    "transformIgnorePatterns": [
+      "/node_modules/(?!d3)+$",
+      "/node_modules/(?!internmap)+$"
+    ],
+    "moduleNameMapper": {
+      "\\.(css|less|svg)+$": "identity-obj-proxy",
+      "./IndexedDBWorker\\?worker": "<rootDir>/test/mocks/workerMock.ts"
+    }
   }
 }