Add jest

.eslintrc.js

@@ -1,14 +1,29 @@
 module.exports = {
   root: true,
+
   env: {
     node: true
   },
+
   extends: ["plugin:vue/essential", "@vue/prettier", "@vue/typescript"],
+
   rules: {
     "no-console": process.env.NODE_ENV === "production" ? "error" : "off",
     "no-debugger": process.env.NODE_ENV === "production" ? "error" : "off"
   },
+
   parserOptions: {
     parser: "@typescript-eslint/parser"
-  }
+  },
+
+  overrides: [
+    {
+      files: [
+        '**/__tests__/*.{j,t}s?(x)'
+      ],
+      env: {
+        jest: true
+      }
+    }
+  ]
 };

jest.config.js

@@ -0,0 +1,37 @@
+module.exports = {
+  moduleFileExtensions: [
+    'js',
+    'jsx',
+    'json',
+    'vue',
+    'ts',
+    'tsx'
+  ],
+  transform: {
+    '^.+\\.vue$': 'vue-jest',
+    '.+\\.(css|styl|less|sass|scss|svg|png|jpg|ttf|woff|woff2)$': 'jest-transform-stub',
+    '^.+\\.tsx?$': 'ts-jest'
+  },
+  transformIgnorePatterns: [
+    '/node_modules/'
+  ],
+  moduleNameMapper: {
+    '^@/(.*)$': '<rootDir>/src/$1'
+  },
+  snapshotSerializers: [
+    'jest-serializer-vue'
+  ],
+  testMatch: [
+    '**/tests/unit/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)'
+  ],
+  testURL: 'http://localhost/',
+  watchPlugins: [
+    'jest-watch-typeahead/filename',
+    'jest-watch-typeahead/testname'
+  ],
+  globals: {
+    'ts-jest': {
+      babelConfig: true
+    }
+  }
+}

package.json

@@ -2,11 +2,11 @@
   "name": "mcgvue",
   "version": "0.1.0",
   "private": false,
-  "license": "ISC",
   "scripts": {
     "serve": "vue-cli-service serve",
     "build": "vue-cli-service build",
-    "lint": "vue-cli-service lint"
+    "lint": "vue-cli-service lint",
+    "test:unit": "vue-cli-service test:unit"
   },
   "dependencies": {
     "buefy": "^0.8.2",
@@ -22,13 +22,17 @@
     "vuex-class": "^0.3.2"
   },
   "devDependencies": {
+    "@types/jest": "^23.1.4",
     "@vue/cli-plugin-babel": "^3.11.0",
     "@vue/cli-plugin-eslint": "^3.11.0",
     "@vue/cli-plugin-pwa": "^3.11.0",
     "@vue/cli-plugin-typescript": "^3.11.0",
+    "@vue/cli-plugin-unit-jest": "^3.11.0",
     "@vue/cli-service": "^3.11.0",
     "@vue/eslint-config-prettier": "^5.0.0",
     "@vue/eslint-config-typescript": "^4.0.0",
+    "@vue/test-utils": "^1.0.0-beta.29",
+    "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "^10.0.1",
     "eslint": "^5.16.0",
     "eslint-plugin-prettier": "^3.1.0",
@@ -37,8 +41,10 @@
     "prettier": "^1.18.2",
     "sass": "^1.18.0",
     "sass-loader": "^7.1.0",
+    "ts-jest": "^23.0.0",
     "typescript": "^3.4.3",
     "vue-cli-plugin-buefy": "^0.3.7",
     "vue-template-compiler": "^2.6.10"
-  }
+  },
+  "license": "ISC"
 }

tests/unit/.eslintrc.js

@@ -0,0 +1,5 @@
+module.exports = {
+  env: {
+    jest: true
+  }
+}

tsconfig.json

@@ -12,7 +12,8 @@
     "sourceMap": true,
     "baseUrl": ".",
     "types": [
-      "webpack-env"
+      "webpack-env",
+      "jest"
     ],
     "paths": {
       "@/*": [
@@ -36,4 +37,4 @@
   "exclude": [
     "node_modules"
   ]
-}
+}