tests/test-ssh-repoerror.t

automation: execute powershell when connecting

For some reason, the ability to execute PS scripts appears to
come online after the ability to execute regular command scripts.
This is creating race conditions when connecting to instances
resulting in our wait_for_winrm() returning before PS is available
leading to an exception being thrown in other code.

Let's change the client connection code to execute a minimal
PS script so we can try to trap the exception in wait_for_winrm().

#require unix-permissions no-root

initial setup

  $ cat << EOF >> $HGRCPATH
  > [ui]
  > ssh="$PYTHON" "$TESTDIR/dummyssh"
  > EOF

repository itself is non-readable
---------------------------------

  $ hg init no-read
  $ hg id ssh://user@dummy/no-read
  000000000000
  $ chmod a-rx no-read

  $ hg id ssh://user@dummy/no-read
  remote: abort: Permission denied: *$TESTTMP/no-read/.hg* (glob)
  abort: no suitable response from remote hg!
  [255]

special case files are visible, but unreadable
----------------------------------------------

This is "similar" to the test above, but the directory is "traversable". This
seems an unexpected case in real life, but we test it anyway.

  $ hg init other
  $ hg id ssh://user@dummy/other
  000000000000
  $ for item in `find other | sort -r` ; do
  >     chmod a-r $item
  > done

  $ hg id ssh://user@dummy/other
  remote: abort: Permission denied: '$TESTTMP/other/.hg/requires'
  abort: no suitable response from remote hg!
  [255]

directory toward the repository is read only
--------------------------------------------

  $ mkdir deep
  $ hg init deep/nested

  $ hg id ssh://user@dummy/deep/nested
  000000000000

  $ chmod a-rx deep

  $ hg id ssh://user@dummy/deep/nested
  remote: abort: Permission denied: *$TESTTMP/deep/nested/.hg* (glob)
  abort: no suitable response from remote hg!
  [255]

repository has wrong requirement
--------------------------------

  $ hg init repo-future
  $ hg id ssh://user@dummy/repo-future
  000000000000
  $ echo flying-car >> repo-future/.hg/requires
  $ hg id ssh://user@dummy/repo-future
  remote: abort: repository requires features unknown to this Mercurial: flying-car!
  remote: (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
  abort: no suitable response from remote hg!
  [255]