fix unit test

app.coffee

@@ -132,7 +132,7 @@ app.express.get '/', (req, res) ->
 
 app.express.use harp.mount './core/static'
 
-unless module.parent
+exports.start = _.once ->
   app.express.listen config.web.listen, ->
     app.started = true
 
@@ -143,3 +143,6 @@ unless module.parent
       hook.action()
 
     app.logger.log "RootPanel start at #{config.web.listen}"
+
+unless module.parent
+  exports.start()

core/test/app.test.coffee

@@ -1,7 +1,7 @@
 describe 'app', ->
   it 'should can startup', ->
     @timeout 20000
-    require '../../app'
+    require('../../app').start()
 
   it 'should connected to mongodb', (done) ->
     async.forever (callback) ->
@@ -12,15 +12,6 @@ describe 'app', ->
     , ->
       done()
 
-  it 'express should be started', (done) ->
-    async.forever (callback) ->
-      if app.started
-        callback true
-      else
-        setImmediate callback
-    , ->
-      done()
-
   it 'app.libs should be loaded', ->
     {_, express, fs, mongoose} = app.libs
     _.should.be.ok

plugin/wiki/test/wiki.test.coffee

@@ -12,7 +12,7 @@
 
     it 'GET /:category/:title', (done) ->
       agent.get '/wiki/FAQ/Billing.md'
-      .expect if config.plugins.wiki.disable_default_wiki then 404 else 200
+      .expect if config.plugins.wiki?.disable_default_wiki then 404 else 200
       .end done
 
     it 'GET /:category/:title when not exist', (done) ->