index: fix test for time.Time change on 1.9

[ferhatelmas]

No description provided.

[campoy]

I think we should not be using reflect.DeepEqual since comparing unexported fields is weak
Have you considered trying https://github.com/google/go-cmp?

[mcuadros]

Yep for this case, will be inserting use cmp, instead of DeepEquals from gocheck

[ferhatelmas]

That's a great suggestion, updated. Added two more small improvements as separate commits.

[ferhatelmas]

@mcuadros @campoy ping

[kuba--]

Hi guys, I suggest to use os.TempDir() in pack_test.go and unpack_test.go (instead of hardcoded "/tmp/"), because windows builds are failing.

...
unpack_test.go:20:
    c.Assert(err, IsNil)
... value *os.PathError = &os.PathError{Op:"CreateFile", Path:"/tmp/", Err:0x2} ("CreateFile /tmp/: The system cannot find the file specified.")