[Bug 1516959] Re: debian/test/control: negative architecture restictions are rejected in dependencies

[Martin Pitt]

** Changed in: autopkgtest (Ubuntu)
       Status: New => Triaged

** Changed in: autopkgtest (Ubuntu)
   Importance: Undecided => Medium

** Changed in: autopkgtest (Ubuntu)
     Assignee: (unassigned) => Martin Pitt (pitti)

** Changed in: autopkgtest (Ubuntu)
       Status: Triaged => In Progress

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Title:
  debian/test/control: negative architecture restictions are rejected in
  dependencies

Status in autopkgtest package in Ubuntu:
  In Progress

Bug description:
  If we specify a negative architecture dependency in
  debian/test/control we get an invalid syntax error:

      blame: linux
      badpkg: InvalidControl test ubuntu-regression-suite: Test Depends field contains an invalid dependency `gcc-multilib [!ppc64el]'
      adt-run [21:27:37]: ERROR: erroneous package: InvalidControl test ubuntu-regression-suite: Test Depends field contains an
         invalid dependency `gcc-multilib [!ppc64el]'
      Exit request sent.

  This appears to be because ! is simply not expected by the parser:

  lib/testdesc.py:
  dep_re = re.compile(
      r'(?P<package>[a-z0-9+-.]+)(?::native)?\s*'
      r'(\((?P<relation><<|<=|>=|=|>>)\s*(?P<version>[^\)]*)\))?'
      r'(\s*\[[[a-z0-9+-. ]+\])?$')

  Full log:
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
  /autopkgtest-xenial-canonical-kernel-team-
  unstable/xenial/i386/l/linux/20151113_212749@/log.gz

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