[PATCH v2 4/4] test: Don't unmount not (yet) mounted system

[Andy Shevchenko]

On Thu, Feb 18, 2021 at 6:46 AM Simon Glass <sjg at chromium.org> wrote:
>
> Hi Andy,
>
> On Thu, 11 Feb 2021 at 07:40, Andy Shevchenko
> <andriy.shevchenko at linux.intel.com> wrote:
> >
> > When test suite tries to create a file for a new filesystem test case and fails,
> > the clean up of the exception tries to unmount the image, that has not yet been
> > mounted. When it happens, the fuse_mounted global variable is set to False and
> > inconveniently the test case tries to use sudo, so without this change the
> > admin of the machine gets an (annoying) email:
> >
> >   Subject: *** SECURITY information for example.com ***
> >
> >   example.com : Feb  5 19:43:47 : ... COMMAND=/bin/umount .../build-sandbox/persistent-data/mnt
> >
> > and second run of the test cases on uncleaned build folder will ask for sudo
> > which is not what expected.
> >
> > Besides that there is a double unmount calls during successfully run test case.
> >
> > All of these due to over engineered Python try-except clause and people didn't
> > get it properly at all. The rule of thumb is that don't use more keywords than
> > try-except in the exception handling code. Nevertheless, here we adjust code
> > to be less intrusive to the initial logic behind that complex and unclear
> > constructions in the test case, although it adds a lot of lines of the code,
> > i.e. splits one exception handler to three, so on each step we know what
> > cleanup shall perform.
> >
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
> > ---
> > v2: new patch
> >  test/py/tests/test_fs/conftest.py | 78 ++++++++++++++++++++++---------
> >  1 file changed, 56 insertions(+), 22 deletions(-)
> >
>
> This looks OK to me, but there is a lot of duplication in the code,
> isn't there? Perhaps another forray?

Can we apply this fix as is and think about optimisations later, please?
W/o this I'm really blocked from running tests against U-Boot.

-- 
With Best Regards,
Andy Shevchenko