tests: adding # pragma: no branch in middleware/test_base and test_routing

[lealre]

Summary

Related to issue #2452.

Adding # pragma: no branch in to all the cases

tests/test_routing.py 874->exit

As we talked, I searched for the cause of missing branch coverage in the parametrize line 874, and it turns out that the lambda function is what is causing it.

There is this comment, which is somewhat related, but old. In this comment (also old), it is mentioned that it was supposed to inform a custom lambda message in the HTML report, but it differs from the message we are encountering here.

tests/middleware/test_base.py

• 291->exit
• 405->exit
• 459->457
• 720->723
• 733->740
• 946->948

I believe that in these cases, there are no branch options to be tested, and I am sending this for your confirmation.

One note: the line 459->457 sometimes appears as missing branch coverage in some test runs, while at other times it appears as already covered.

Checklist

• I understand that this PR may be closed in case there was no previous discussion. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.