Bug 729854 – app-portage/g-cpan-0.17.0 fails tests: # Failed test EROOT

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Toralf Förster 2020-06-27 13:36:21 UTC]

t/01_Gentoo_Portage_Q.t .. 
t/01_Gentoo_Portage_Q.t .. 1/5 
    #   Failed test 'EROOT'
    #   at t/01_Gentoo_Portage_Q.t line 27.
    #          got: ''
    #     expected: '/'

  -------------------------------------------------------------------

  This is an unstable amd64 chroot image at a tinderbox (==build bot)
  name: 17.1_systemd-test-20200620-211522

  -------------------------------------------------------------------

gcc-config -l:
 [1] x86_64-pc-linux-gnu-8.3.1
 [2] x86_64-pc-linux-gnu-10.1.0 *
clang version 10.0.0 
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm/10/bin
/usr/lib/llvm/10
10.0.0
Available Python interpreters, in order of preference:
  [1]   python3.7
  [2]   python3.9 (fallback)
  [3]   python3.8 (fallback)
  [4]   python3.6 (fallback)
  [5]   python2.7 (fallback)
Available Rust versions:
  [1]   rust-1.44.1 *
The following VMs are available for generation-2:
The Glorious Glasgow Haskell Compilation System, version 8.0.2

  timestamp(s) of HEAD at this tinderbox image:
/var/db/repos/gentoo	Sat 27 Jun 2020 01:05:19 PM UTC

emerge -qpvO app-portage/g-cpan
[ebuild  N    ] app-portage/g-cpan-0.17.0  USE="test"

[Comment 1 Toralf Förster 2020-06-27 13:36:27 UTC]

Created attachment 646706 [details]
emerge-info.txt

[Comment 2 Toralf Förster 2020-06-27 13:36:30 UTC]

Created attachment 646708 [details]
app-portage:g-cpan-0.17.0:20200627-131802.log

[Comment 3 Toralf Förster 2020-06-27 13:36:33 UTC]

Created attachment 646710 [details]
emerge-history.txt

[Comment 4 Toralf Förster 2020-06-27 13:36:36 UTC]

Created attachment 646712 [details]
environment

[Comment 5 Toralf Förster 2020-06-27 13:36:39 UTC]

Created attachment 646714 [details]
etc.portage.tbz2

[Comment 6 Toralf Förster 2020-06-27 13:36:41 UTC]

Created attachment 646716 [details]
temp.tbz2

[Comment 7 Toralf Förster 2020-06-27 13:36:44 UTC]

Created attachment 646718 [details]
tests.tbz2

[Comment 8 Alexey Mishustin 2020-09-23 03:22:12 UTC]

Hi.

I thought about looking in perl, what is failing, but (as I am not yet familiar with ebuild variables) decided to read about EROOT first. And I've read that ROOT is only allowed in pkg_* phases. Decided to test EROOT in the ebuild. Added 

elog "EROOT=${ROOT}"

in src_test and got

>>> Test phase: app-portage/g-cpan-9999
 * EROOT=

and then

t/01_Gentoo_Portage_Q.t .. 1/5 
    #   Failed test 'EROOT'
    #   at t/01_Gentoo_Portage_Q.t line 27.
    #          got: ''


Does it really mean that the cause of this issue isn't in perl code, but in accessibility of EROOT in the test phase? (ebuild shown '', and test got '')

Or am I missing something?

[Comment 9 Alexey Mishustin 2020-09-23 03:30:14 UTC]

The same with

elog "EROOT=${EROOT}"

[Comment 10 Alexey Mishustin 2020-09-23 03:40:25 UTC]

There is

local $ENV{ROOT} = Path::Tiny->cwd;

in the relevant piece of perl code. I'll be able to test what it returns in the test phase later.

[Comment 11 Alexey Mishustin 2020-09-23 05:10:48 UTC]

Tested, while I had time. Yet not found the solution but narrowed the field significantly:

Path::Tiny->cwd returns '/var/tmp/portage/app-portage/g-cpan-9999/work/g-cpan-9999'

$portageq->envvar('EROOT') returns '' <---- wrong

But $portageq->{_eroot} returns '/'   <---- right

[Comment 12 Alexey Mishustin 2020-09-23 12:06:10 UTC]

I found a solution and made a pull-request.

[Comment 13 Agostino Sarubbo 2022-02-13 10:00:30 UTC]

Update summary. [something] is used when something refers to an overlay