Fix JSON parse error in poll last operation scenario

[leonwanghui]

Signed-off-by: leonwanghui wanghui71leon@gmail.com

Problem description

When I first try npm test for mock broker, it seems that there is one use case that always fail with errors below:

  85 passing (214ms)
  1 failing

  1) PATCH /v2/service_instance/:instance_id
       UPDATE
         should accept a valid update request:
     Uncaught SyntaxError: Unexpected token a in JSON at position 1
      at JSON.parse (<anonymous>)
      at testLastOperationStatus (test/test.js:233:38)
      at Test.<anonymous> (test/test.js:265:29)
      at Test.assert (node_modules/supertest/lib/test.js:181:6)
      at assert (node_modules/supertest/lib/test.js:131:12)
      at node_modules/supertest/lib/test.js:128:5
      at Test.Request.callback (node_modules/superagent/lib/node/index.js:706:12)
      at parser (node_modules/superagent/lib/node/index.js:906:18)
      at IncomingMessage.res.on (node_modules/superagent/lib/node/parsers/json.js:19:7)
      at endReadableNT (_stream_readable.js:1086:12)
      at process._tickCallback (internal/process/next_tick.js:63:19)

Proposed solution

To solve the problem, I modified one line in test.js and then it works fine.

Please notice that this patch could have impact on #32 .

[cfdreddbot]

Hey leonwanghui!

Thanks for submitting this pull request! I'm here to inform the recipients of the pull request that you and the commit authors have already signed the CLA.

[leonwanghui]

@duglin @mattmcneeney Please take a review, thx!

[leonwanghui]

Any update on this PR? I see there are already 2 committers approved : )

[mattmcneeney]

@leonwanghui good point! I think pullapprove is failing to spot the approvals. Let me try to fix this now...

[mattmcneeney]

@fmui please could you do your approval again now that pullapprove is fixed!