Tiny tweak to remove some boilerplate related to tmpfile handling.
The pytest `tmp_path` fixture gives us the tmpdir without having
to worry about cleanup etc (and in a slightly more concise way).
The `amend_secrets()` does not work with real files so there is
no need to mock cachedirs or create fake input files. This commit
just removes those.
It also changes the checksum to `"1"*64` to make it very clear
that the checksum has no significance in this test.
There was a regression with the secrets adding of rhsm for the
curl source. This was my mistake (sorry!). Here is a regression
test that would have prevented this (if we have had it earlier).
Similar to the previous commit to include a `inputs_service` fixture
this does the same for `source.SourcesService` imports.
Note that we cannot easily share the helpers so we have to life with
a bit of very similar but duplicated code. To fix this we would have
to have a shared confftest.py that pytest can find. Which would mean
that we need to put the tests under a common dir that is reachable
via __init__.py files (which we currently not have because stages,
inputs etc do not have a __init__.py so python does not considers
them modules).
The curl source is the only source left that uses "transform". And
here the name is very generic but in fact we only do a single thing:
we add secrets for subscriptions for for mtls to the download.
So rename to make it clear what this is all about.
