support test on windows

also add some dependencies

Author: shigma

packages/@vuepress/test-utils/lib/createJestRunner.js

@@ -5,11 +5,10 @@ const usedPorts = []
 
 module.exports = function createJestRunner (jestArgs) {
   return async function () {
-    let args = [...jestArgs, ...rawArgs]
     const execArgv = getChildProcesExecArgv()
-    args = [...execArgv, 'node_modules/.bin/jest', ...args]
+    const args = [...execArgv, ...jestArgs, ...rawArgs]
     console.log(`running node with args: ${args.join(' ')}`)
-    await execa('node', args, {
+    await execa('jest', args, {
       stdio: 'inherit'
     })
   }

packages/@vuepress/test-utils/package.json

@@ -29,7 +29,9 @@
     "execa": "^0.10.0",
     "jest-serializer-vue": "^1.0.0",
     "ts-jest": "^23.10.5",
-    "vue-jest": "^4.0.0-beta.1"
+    "vue": "^2.5.16",
+    "vue-jest": "^4.0.0-beta.1",
+    "vue-template-compiler": "^2.5.16"
   },
   "author": "ULIVZ <chl814@foxmail.com>",
   "license": "MIT",