Draft: integration tests

[guilherme-puida]

Original MR: https://salsa.debian.org/debian/wcurl/-/merge_requests/10

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I'm looking for some feedback here :^)

[bagder]

Can you explain in words how we would add new tests to this suite and what it aims at testing?

[guilherme-puida]

how we would add new tests to this suite

By adding new test_ methods to the TestWcurl class. This is kind of messy right now, since the TestWcurl class contains both tests and the infrastructure required to run them (starting the http server, creating temporary directories). My plan is to eventually split those two concerns into different classes, so that the actual tests would be easier to see/maintain.

I also want to add some helper methods to assert that a file was created/execution failed/etc.

what it aims at testing

When we first released wcurl, we had some issues with people using it with older versions of the curl CLI. We didn't think about that, and now we conditionally add options based on the CLI version (1240227 and c914de9). This is impossible to catch with the unit tests we have right now, since we don't actually execute curl and only look at the generated options. I would feel more comfortable adding or modifying the options we generate if we could test the execution on different/older curl versions.