Random panic on runtime.errorString conversion

[kachayev]

From time to time go test -v command fails with

panic: runtime error: invalid memory address or nil pointer dereference [recovered]
    panic: interface conversion: interface is runtime.errorString, not string [recovered]
    panic: interface conversion: interface is runtime.errorString, not string
[signal 0xb code=0x1 addr=0x0 pc=0x3b924]

goroutine 4 [running]:
testing.func·004()
    /usr/local/Cellar/go/1.1/src/pkg/testing/testing.go:348 +0xcd
github.com/franela/goblin.func·001()
    ~/src/github.com/franela/goblin/goblin.go:156 +0x9d

Unfortunately, I can't find appropriate scenario to reproduce this situation, but it happens quite often.

[marcosnils]

Can you please provide further information about the system you're running Goblin in?.

Does this happens always with the same test or it just crashes randomly?

Thanks,

Marcos.

[kachayev]

I'm not sure what information can help you:

$ go version
go version go1.1 darwin/amd64
$ uname -a
Darwin local 11.4.2 Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64
$ go env
GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GORACE=""
GOTOOLDIR="/usr/local/Cellar/go/1.1/pkg/tool/darwin_amd64"
CC="gcc"
GOGCCFLAGS="-g -O2 -fPIC -m64 -pthread -fno-common"
CGO_ENABLED="1"
$ cat /src/github.com/franela/goblin/.git/HEAD
42acea7b160991b24bf413d8c43140dafca60fca

It crashes randomly.

[marcosnils]

Thx for the update.

One last question. Are you using Gomega assertions in your test?

[marcosnils]

We've identified the issue. Fix is on the way.

[kachayev]

Are you using Gomega assertions in your test?

Nope.

Fix is on the way.

Great, thanks!

[xetorthio]

Fixed with pull request #26

Could you please update goblin to the last version and check if you are still getting the same error?

We'll wait for your feedback before closing this.

[kachayev]

Ah, now it works fine. Thanks!

[marcosnils]

Awsome.

Closed!.