Re: [GSoC][PATCH] t: migrate helper/test-urlmatch-normalization to unit tests

[Patrick Steinhardt <ps@pks.im>]

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On Wed, Jul 24, 2024 at 12:36:32PM +0530, Ghanshyam Thakkar wrote:
> Patrick Steinhardt <ps@pks.im> wrote:
> > On Wed, Jul 24, 2024 at 05:54:33AM +0530, Ghanshyam Thakkar wrote:
> > > Patrick Steinhardt <ps@pks.im> wrote:
> > > > On Fri, Jun 28, 2024 at 06:26:24PM +0530, Ghanshyam Thakkar wrote:
> > > > > +	free(url1_norm);
> > > > > +	free(url2_norm);
> > > > > +}
> > > > > +
> > > > > +static void check_normalized_url_from_file(const char *file, const char *expect)
> > > > > +{
> > > > > +	struct strbuf content = STRBUF_INIT, path = STRBUF_INIT;
> > > > > +
> > > > > +	strbuf_getcwd(&path);
> > > > > +	strbuf_strip_suffix(&path, "/unit-tests/bin"); /* because 'unit-tests-test-tool' is run from 'bin' directory */
> > > >
> > > > Curious: is this a new requirement or do other tests have the same
> > > > requirement? I was under the impression that I could execude the
> > > > resulting unit test binaries from whatever directory I wanted to, but
> > > > didn't verify.
> > > 
> > > I am not aware of any requirements, but if we want to interact with
> > > other files like in this case (and where we potentially have to
> > > interact with a test repository), we'd need to have some requirement
> > > to construct the path to these data files (and the test repository),
> > > similar to end-to-end tests where they can be run in only t/
> > > directory. Do you think calling `setup_git_directory()` and then using
> > > `the_repository->worktree` to get the root of the worktree of Git source
> > > and then construct the path relative to that, would be useful? That way
> > > we can atleast call the binaries from anywhere within the tree.
> >
> > Instead of using the working directory, you can also use the `__FILE__`
> > preprocessor macro to access the files relative to the directory of the
> > original source file. That at least makes it possible to execute the
> > result from all directories, but still obviously ties us to the location
> > of the source directory.
> 
> But doesn't '__FILE__' give relative path instead of absolute? A quick
> test_msg() tells me that '__FILE__' gives the path
> 't/unit-tests/t-urlmatch-normalization.c' for me. So, I don't know
> how we would be able to execute from _all_ directories. Although, I
> think the restriction of running from only 't/' would be fine as
> end-to-end tests have similar restrictions.

Ah, you're right of course. Scratch that then.

Patrick

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