test writev before and after connect is flakey

[tuananh]

I'm not sure how to reliably re-produce this.

sometimes, i run yarn test and i got the below error

not ok 104 should be equivalent
  ---
    operator: deepEqual
    expected: |-
      <Buffer 68 65 6a 20 76 65 72 64 65 6e 20 6f 67 20 68 65 6c 6c 6f 20 77 6f 72 6c 64>
    actual: |-
      <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
    at: <anonymous> (/Users/anh/code/turbo-net/test/write.js:55:9)
    stack: |-
      Error: should be equivalent
          at Test.assert [as _assert] (/Users/anh/code/turbo-net/node_modules/tape/lib/test.js:225:54)
          at Test.bound [as _assert] (/Users/anh/code/turbo-net/node_modules/tape/lib/test.js:77:32)
          at Test.deepEqual.Test.deepEquals.Test.isEquivalent.Test.same (/Users/anh/code/turbo-net/node_modules/tape/lib/test.js:421:10)
          at Test.bound [as same] (/Users/anh/code/turbo-net/node_modules/tape/lib/test.js:77:32)
          at /Users/anh/code/turbo-net/test/write.js:55:9
          at Request.done (/Users/anh/code/turbo-net/lib/queue.js:74:5)
          at Connection._onread (/Users/anh/code/turbo-net/lib/connection.js:138:13)
  ...