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Re: [PATCH 2/2] test-lib.sh: Dynamic test for the prerequisite SANITY

From
Chris Packham <judge.packham@gmail.com>
Date
Jan 27, 2015, 19:53 UTC
Message-ID
<CAFOYHZDcvBvF8rgyax_4xMc88sZJFTVX-fXwV1iZa8veTaFixQ@mail.gmail.com>
In-Reply-To
<54C7B115.7020405@web.de>
Minor typo in a comment.
On Wed, Jan 28, 2015 at 4:39 AM, Torsten Bögershausen <tboegi@web.de> wrote:
Show 39 quoted lines
> The SANITY precondition was not set when running as root,
> but this is not 100% reliable for CYGWIN:
>
> A file may be allowed to be deleted when the containing
> directory does not have write permissions.
>
> See
> https://technet.microsoft.com/en-us/library/bb463216.aspx
> "...In UNIX, the write permission bit on a directory permits both
> the creation and removal of new files or sub-directories in the directory.
> On Windows, the Write_Data access right controls the creation of new
> sub-files and the Delete_Child access right controls the deletion. ...."
>
> We may argue that the translation of the POSIX write permission bit
> into "Windows access rights" can be improved in CYGWIN.
>
> A dynamic test handles all cases: when the sequence
> $ mkdir SANETESTD &&
> $ chmod +w SANETESTD &&
> $ >SANETESTD/x &&
> $ ! rm SANETESTD/x
> succeeds the prerequisite SANITY is true.
>
> Helped-by: Junio C Hamano <gitster@pobox.com>
> Signed-off-by: Torsten Bögershausen <tboegi@web.de>
> ---
>  t/test-lib.sh | 17 ++++++++++++++++-
>  1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/t/test-lib.sh b/t/test-lib.sh
> index 93f7cad..887e986 100644
> --- a/t/test-lib.sh
> +++ b/t/test-lib.sh
> @@ -1038,8 +1038,23 @@ test_lazy_prereq NOT_ROOT '
>
>  # When the tests are run as root, permission tests will report that
>  # things are writable when they shouldn't be.
> +# Special check for CYGWIN (or Windows in general):
> +# A file can be deleted, even if the containing directory does'nt
s/does'nt/doesn't/
Show 26 quoted lines
> +# have write permissions
>  test_lazy_prereq SANITY '
> -       test_have_prereq POSIXPERM,NOT_ROOT
> +       mkdir SANETESTD &&
> +       chmod +w SANETESTD &&
> +       >SANETESTD/x &&
> +       chmod -w SANETESTD ||
> +       error "bug in test sript: cannot prepare SANETESTD"
> +
> +       ! rm SANETESTD/x
> +       status=$?
> +
> +       chmod +w SANETESTD &&
> +       rm -rf SANETESTD ||
> +       error "bug in test sript: cannot clean SANETESTD"
> +       return $status
>  '
>
>  GIT_UNZIP=${GIT_UNZIP:-unzip}
> --
> 2.2.0.rc1.26.g3e3a70d
>
> --
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Previous: Torsten BögershausenNext: Junio C Hamano
Message 2 of 7 in “test-lib.sh: Dynamic test for the prerequisite SANITY”
  1. 2/2 test-lib.sh: Dynamic test for the prerequisite SANITYTorsten Bögershausen, Jan 27, 2015
  2. Chris PackhamJan 27, 2015
  3. Junio C HamanoJan 27, 2015
  4. Torsten BögershausenJan 28, 2015
  5. Junio C HamanoJan 28, 2015
  6. Torsten BögershausenJan 28, 2015
  7. Junio C HamanoJan 28, 2015

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