test: add travis

.travis.yml

+language: node_js
+node_js:
+  - 10.15.0
+cache: yarn
+script:
+  - yarn
+  - yarn run build
\ No newline at end of file

jest.config.js

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

package.json

@@ -5,7 +5,8 @@
   "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": {
     "@antv/data-set": "^0.10.1",
@@ -29,9 +30,13 @@
   "devDependencies": {
     "@vue/cli-plugin-babel": "^3.2.0",
     "@vue/cli-plugin-eslint": "^3.2.0",
+    "@vue/cli-plugin-unit-jest": "^3.3.0",
     "@vue/cli-service": "^3.2.0",
     "@vue/eslint-config-standard": "^4.0.0",
+    "@vue/test-utils": "^1.0.0-beta.20",
+    "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "^10.0.1",
+    "babel-jest": "^23.6.0",
     "eslint": "^5.8.0",
     "eslint-plugin-vue": "^5.0.0-0",
     "less": "^3.8.1",

tests/unit/.eslintrc.js

+module.exports = {
+  env: {
+    jest: true
+  }
+}
\ No newline at end of file