August 2018
Beginner
160 pages
4h 8m
English
Content preview from pytest Quick Start Guide
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tmpdir_factory
The tmpdir fixture is very handy, but it is only function-scoped: this has the downside that it can only be used by other function-scoped fixtures.
The tmpdir_factory fixture is a session-scoped fixture that allows creating empty and unique directories at any scope. This can be useful when we need to store data on to a disk in fixtures of other scopes, for example a session-scoped cache or a database file.
To show it in action, the images_dir fixture shown next uses tmpdir_factory to create a unique directory for the entire test session containing a series of sample image files:
@pytest.fixture(scope='session')def images_dir(tmpdir_factory): directory = tmpdir_factory.mktemp('images') download_images('https://example.com/samples.zip', ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.