build: upgrade webpack & karma

package.json

@@ -106,7 +106,7 @@
     "http-server": "^0.11.1",
     "jasmine": "^2.99.0",
     "jasmine-core": "^2.99.0",
-    "karma": "^2.0.0",
+    "karma": "^3.1.1",
     "karma-chrome-launcher": "^2.1.1",
     "karma-coverage": "^1.1.1",
     "karma-firefox-launcher": "^1.0.1",
@@ -116,7 +116,7 @@
     "karma-safari-launcher": "^1.0.0",
     "karma-sauce-launcher": "^1.1.0",
     "karma-sourcemap-loader": "^0.3.7",
-    "karma-webpack": "^2.0.3",
+    "karma-webpack": "^4.0.0-rc.2",
     "lint-staged": "^7.0.0",
     "lodash": "^4.17.4",
     "lodash.template": "^4.4.0",
@@ -139,7 +139,7 @@
     "shelljs": "^0.8.1",
     "typescript": "^2.7.1",
     "uglify-js": "^3.0.15",
-    "webpack": "^3.11.0",
+    "webpack": "^4.22.0",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
     "yorkie": "^1.0.1"

scripts/config.js

@@ -188,6 +188,11 @@ function genConfig (name) {
       format: opts.format,
       banner: opts.banner,
       name: opts.moduleName || 'Vue'
+    },
+    onwarn: (msg, warn) => {
+      if (!/Circular/.test(msg)) {
+        warn(msg)
+      }
     }
   }
 

test/unit/karma.base.config.js

@@ -2,6 +2,7 @@ var alias = require('../../scripts/alias')
 var webpack = require('webpack')
 
 var webpackConfig = {
+  mode: 'development',
   resolve: {
     alias: alias
   },
@@ -18,7 +19,6 @@ var webpackConfig = {
     new webpack.DefinePlugin({
       __WEEX__: false,
       'process.env': {
-        NODE_ENV: '"development"',
         TRANSITION_DURATION: process.env.CI ? 100 : 50,
         TRANSITION_BUFFER: 10
       }