test: Add jest and vue-test-utils setup

jest.config.js

@@ -0,0 +1,9 @@
+module.exports = {
+  coverageDirectory: "coverage",
+  testMatch: ["**/__tests__/**/*.spec.ts", "**/__tests__/**/*.test.ts"],
+  moduleFileExtensions: ["js", "ts", "json", "vue"],
+  transform: {
+    "^.+\\.ts$": "ts-jest",
+    "^.+\\.vue$": "vue-jest",
+  },
+};

package.json

@@ -5,20 +5,26 @@
     "dev": "vite",
     "build": "vue-tsc --noEmit && vite build",
     "serve": "vite preview",
-    "deploy": "push-dir --dir=dist --branch=gh-pages --cleanup"
+    "deploy": "push-dir --dir=dist --branch=gh-pages --cleanup",
+    "test": "jest  --watch --passWithNoTests --onlyChanged"
   },
   "dependencies": {
     "vue": "^3.0.5"
   },
   "devDependencies": {
+    "@types/jest": "^26.0.22",
     "@vitejs/plugin-vue": "^1.2.1",
     "@vue/compiler-sfc": "^3.0.5",
+    "@vue/test-utils": "^2.0.0-rc.4",
     "autoprefixer": "^10.2.5",
+    "jest": "^26.6.3",
     "postcss": "^8.2.10",
     "push-dir": "^0.4.1",
     "tailwindcss": "^2.1.1",
+    "ts-jest": "^26.5.5",
     "typescript": "^4.1.3",
     "vite": "^2.1.5",
+    "vue-jest": "^5.0.0-alpha.7",
     "vue-tsc": "^0.0.15"
   }
 }

tsconfig.json

@@ -9,7 +9,13 @@
     "resolveJsonModule": true,
     "esModuleInterop": true,
     "lib": ["esnext", "dom"],
-    "types": ["vite/client"]
+    "types": ["vite/client", "@types/jest"]
   },
-  "include": ["src/**/*.ts", "src/**/*.d.ts", "src/**/*.tsx", "src/**/*.vue"]
+  "include": [
+    "src/**/*.ts",
+    "src/**/*.d.ts",
+    "src/**/*.vue",
+    "__tests__/**/*.vue",
+    "__tests__/**/*.ts"
+  ]
 }