Add short test summary info result message

[hirotoKirimaru]

Fixes #133

add additional info to short test summary info.
The message is FAILURES's first message.

I believe that even if there are multiple error messages, it is sufficient if even one is displayed in the short message

FAILURE: check 1 == 2: comment about a=1 != b=2

============================= test session starts ==============================
platform linux -- Python 3.7.9, pytest-7.4.3, pluggy-1.2.0
rootdir: /tmp/pytest-of-mizubuntu/pytest-75/test_message0
plugins: check-2.2.2
collected 2 items / 1 deselected / 1 selected

test_example_short_test_summary_info.py F                                [100%]

=================================== FAILURES ===================================
_________________________________ test_message _________________________________

FAILURE: check 1 == 2: comment about a=1 != b=2
test_example_short_test_summary_info.py:11 in test_message() -> check.equal(a, b, f"comment about a={a} != b={b}")

------------------------------------------------------------
Failed Checks: 1
=========================== short test summary info ============================
FAILED test_example_short_test_summary_info.py::test_message - FAILURE: check...
======================= 1 failed, 1 deselected in 0.55s ========================

[okken]

@hirotoKirimaru This is cool. Thanks for working on this.
I'd like to play with the formatting a little.
Are you ok with me adding modifications and pushing to this PR?

[hirotoKirimaru]

@hirotoKirimaru This is cool. Thanks for working on this. I'd like to play with the formatting a little. Are you ok with me adding modifications and pushing to this PR?

@okken Absolutely, I have no problems with you making modifications and pushing to this PR.

[okken]

I modified the summary to remove the 'FAILURE:' from the front.
It's kinda of a hack bit of code, but I was hoping to have it similar to the assert summary.
I'm guessing there's a more elegant way to do this. But this seemed the most obvious to me.

I added assert tests to the example, for comparison:

=================================== short test summary info ===================================
FAILED test_example_summary.py::test_assert_no_msg - assert 1 == 2
FAILED test_example_summary.py::test_assert_msg - AssertionError: comment about a=1 != b=2
FAILED test_example_summary.py::test_check_no_msg - check 1 == 2
FAILED test_example_summary.py::test_check_msg - check 1 == 2: comment about a=1 != b=2

Look ok?

[okken]

Ok. I think I don't know what I'm doing with pushing to a PR. So I'm just gonna merge this and then merge my changes on top, and we can start fresh there.

[okken]

Published as version 2.2.3

[hirotoKirimaru]

Thank you for merging!