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Re: [Libguestfs] [PATCH nbdkit] tests: Convert some tests to use nbdsh instead of qemu-io.

On Wed, Sep 11, 2019 at 02:57:50PM +0100, Richard W.M. Jones wrote:
> On Wed, Sep 11, 2019 at 08:48:28AM -0500, Eric Blake wrote:
> > On 9/11/19 5:40 AM, Richard W.M. Jones wrote:
> > > Very much a work in progress as there are still many tests using
> > > qemu-io which are candidates for conversion.
> > > 
> > > You'll notice at the end of test-full.sh that the new test has some
> > > duplicated code which looks as if it ought to be refactored into a
> > > Python function.  When I tried to do that, I got loads of strange
> > > Python problems which may indicate bugs in nbdsh itself or problems
> > > with my understanding of how Python works, but I wasn't sure how to
> > > fix it.  The current implementation works.
> > 
> > I'm not sure if I'd spot the problem, but I'd least need to see your
> > alternative that didn't work before I can tell for sure :)
> Attached is my alternative (on top of the current patch), which seems
> to me straightforward, but actually fails with the attached error.
> I tried variations inserting ‘global h’ in various places but couldn't
> make it work.
> Also note there are two related errors, because ‘nbd’ somehow get
> "unimported" from the function too.
> Needs help from someone who knows more Python :-)

This turned out to be a bug in nbdsh:



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