Buffer tests not working on master

[lunemec]

Since there is no CI on this project, I figured this out only when I cloned the project (to hack on it) and ran the tests.

EDIT: I noticed there is Travis CI but only for build, not for the tests.
EDIT2: It seems go1.5 works OK, but 1.6 and 1.7 do not - see #58

$ go test
INFO[0000] Round trip: http://127.0.0.1:56109, code: 200, duration: 628.619µs

----------------------------------------------------------------------
FAIL: buffer_test.go:94: BFSuite.TestChunkedEncodingLimitReached

buffer_test.go:122:
    c.Assert(status, Equals, "HTTP/1.0 413 Request Entity Too Large\r\n")
... obtained string = "HTTP/1.0 200 OK\r\n"
... expected string = "HTTP/1.0 413 Request Entity Too Large\r\n"

INFO[0000] Round trip: http://127.0.0.1:56113, code: 200, duration: 445.303µs

----------------------------------------------------------------------
FAIL: buffer_test.go:55: BFSuite.TestChunkedEncodingSuccess

buffer_test.go:89:
    c.Assert(reqBody, Equals, "testtest1test2")
... obtained string = ""
... expected string = "testtest1test2"

INFO[0000] Round trip: http://127.0.0.1:56117, code: 200, duration: 316.075µs
ERRO[0000] Error copying upstream response Body: total size of 33 exceeded allowed 4
ERRO[0000] failed to read response, err no data ready
INFO[0000] Round trip: http://127.0.0.1:56121, code: 200, duration: 394.326µs
INFO[0000] Round trip: http://127.0.0.1:56125, code: 200, duration: 404.963µs
INFO[0000] Round trip: http://127.0.0.1:56129, code: 304, duration: 302.626µs
INFO[0000] Round trip: http://127.0.0.1:56133, code: 200, duration: 447.161µs tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:
INFO[0000] request body over limit: Maximum size &{4} was reached
INFO[0000] Round trip: http://127.0.0.1:56140, code: 200, duration: 392.388µs
ERRO[0000] Error copying upstream response Body: total size of 33 exceeded allowed 4
ERRO[0000] failed to read response, err no data ready
INFO[0000] Round trip: http://127.0.0.1:56144, code: 200, duration: 406.956µs
ERRO[0000] Error forwarding to http://localhost:64321, err: dial tcp [::1]:64321: getsockopt: connection refused
INFO[0000] retry Request(GET /) attempt 2
ERRO[0000] Error forwarding to http://localhost:64322, err: dial tcp [::1]:64322: getsockopt: connection refused
INFO[0000] retry Request(GET /) attempt 3
ERRO[0000] Error forwarding to http://localhost:64323, err: dial tcp [::1]:64323: getsockopt: connection refused
ERRO[0000] Error forwarding to http://localhost:64321, err: dial tcp [::1]:64321: getsockopt: connection refused
INFO[0000] retry Request(GET /) attempt 2
INFO[0000] Round trip: http://127.0.0.1:56157, code: 200, duration: 1.180046ms
INFO[0000] Round trip: http://127.0.0.1:56163, code: 200, duration: 853.58µs
OOPS: 11 passed, 2 FAILED
--- FAIL: TestBuffer (0.05s)
FAIL
exit status 1