diff --git a/package.json b/package.json
index 459add68ad569c499ac25ecf50277f30a0a322da..a8b28513c64fa1e838942a659fef4e1cda3b8259 100755
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "lint": "npm run eslint && npm run tslint",
     "eslint": "eslint \"{bin,example,src,test}/**/*.js\"",
     "tslint": "tslint \"{bin,example,src,test}/**/*.ts\" && tsc --noEmit",
-    "pretest": "npm run lint && npm run clean && npm run build",
+    "pretest": "npm run clean && npm run lint && npm run build",
     "sloc": "sloc bin example src test index.ts --details --format cli-table --keys total,source,comment && sloc bin example src test index.ts",
     "test": "npm run test:chrome",
     "posttest": "npm run clean && npm run sloc",
diff --git a/src/puppet-web/browser.ts b/src/puppet-web/browser.ts
index 080bf89d42e0ab6b074eb95d27ee6f1359e05c02..ff94b1b6520c334219b8ec0ba074658202dba393 100644
--- a/src/puppet-web/browser.ts
+++ b/src/puppet-web/browser.ts
@@ -51,8 +51,6 @@ export class Browser extends EventEmitter {
   public toString() { return `Browser({head:${this.setting.head})` }
 
   public async init(): Promise<void> {
-    // this.targetState('open')
-    // this.currentState('opening')
     this.state.target('open')
     this.state.current('open', false)
 
@@ -61,11 +59,7 @@ export class Browser extends EventEmitter {
     const jumpUrl = 'https://wx.qq.com/zh_CN/htmledition/v2/images/webwxgeticon.jpg'
 
     try {
-      // await this.initDriver()
       await this.driver.init()
-
-      // this.live = true
-
       await this.open(jumpUrl)
       await this.loadCookie()
                 .catch(e => { // fail safe
@@ -75,16 +69,15 @@ export class Browser extends EventEmitter {
                   )
                 })
       await this.open()
+
       /**
        * when open url, there could happen a quit() call.
        * should check here: if we are in `close` target state, we should clean up
        */
-      // if (this.targetState() !== 'open') {
       if (this.state.target() !== 'open') {
-        throw new Error('init() finished but found state.target() is not open. quit().')
+        throw new Error('init() finished but found state.target() is changed to close. has to quit().')
       }
 
-      // this.currentState('open')
       this.state.current('open')
 
       return
diff --git a/src/puppet-web/firer.spec.ts b/src/puppet-web/firer.spec.ts
index 6e63ee42a47be98c1564def4522f91a447f562fb..fa6f60e95b9856213d5ca08674c075da94181239 100644
--- a/src/puppet-web/firer.spec.ts
+++ b/src/puppet-web/firer.spec.ts
@@ -19,7 +19,7 @@ test('Firer smoking test', t => {
   t.true(true, 'should be true')
 })
 
-test('Firer.checkFriendConfirm', t => {
+test('Firer.parseFriendConfirm', t => {
   const contentList = [
     [
         'You have added 李卓桓 as your WeChat contact. Start chatting!'
@@ -41,7 +41,7 @@ test('Firer.checkFriendConfirm', t => {
   t.false(result, 'should be falsy for other msg')
 })
 
-test('Firer.checkRoomJoin', t => {
+test('Firer.parseRoomJoin', t => {
   const contentList: [string, string, string[]][] = [
     [
       `You've invited "李卓桓" to the group chat`
@@ -83,7 +83,7 @@ test('Firer.checkRoomJoin', t => {
   }, Error, 'should throws if message is not expected')
 })
 
-test('Firer.checkRoomLeave', t => {
+test('Firer.parseRoomLeave', t => {
   const contentList = [
     [
         `You removed "Bruce LEE" from the group chat`
@@ -107,7 +107,7 @@ test('Firer.checkRoomLeave', t => {
   }, Error, 'should throw if message is not expected')
 })
 
-test('Firer.checkRoomTopic', t => {
+test('Firer.parseRoomTopic', t => {
   const contentList = [
     [
         `"李卓桓.PreAngel" changed the group name to "ding"`