fix a bug that you can not reconnect on wechat

[johnzeng]

On wechat, if the socket is closed, the socketOpen mark is not set to false , so you might send data before the websocket is opened, and the following codes will result in error:

function sendSocketMessage (msg) {
  if (socketOpen) {
    wx.sendSocketMessage({
      data: msg
    })
  } else {
    socketMsgQueue.push(msg)
  }
}

BTW, why are we pushing msg into a msg queue when the socket is not opened? If we send some message to socket before mqtt connection is done, those messages will be send to server, will it result in error?

[codecov]

Codecov Report

Merging #724 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #724   +/-   ##
=======================================
  Coverage   92.88%   92.88%           
=======================================
  Files           8        8           
  Lines         703      703           
  Branches      173      173           
=======================================
  Hits          653      653           
  Misses         50       50

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[mcollina]

I’m not really familiar with the wechat support. We can’t really test it, so it’s best effort. I really don’t have an answer for you :/.