Importing urllib3 already allows us to check that for example zlib can
be loaded at runtime.
For good measure, also create the PoolManager object mentioned in the
user guide ([1]), and check that we can normalize a URL like it is
done in urllib3's 'test/test_util.py'.
[1]: https://urllib3.readthedocs.io/en/stable/user-guide.html
Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit 3e931caf84)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
