Explicit hint to subtests in progress and summary

[maxnikulin]

Use "SUBPASS" and "," for passed subtests instead of general "PASSED",
"SUBFAIL" and "u" for failed ones instead of "FAILED".

[maxnikulin]

Let's discuss one more idea. Do you think it is better to report progress and summary in a such way so subtest results could be easily distinguished from complete test items?

============================= test session starts ==============================
platform linux -- Python 3.6.9, pytest-5.4.3, py-1.5.2, pluggy-0.13.1
rootdir: /home/ptst/pytest-subtests-test
plugins: xdist-1.32.0, forked-1.1.3, subtests-0.3.2.dev4+gd942684
collected 1 item

test_demo.py u,.                                                         [100%]

=================================== FAILURES ===================================
___________________________ test_demo [binary math] ____________________________

subtests = SubTests(ihook=<pluggy.hooks._HookRelay object at 0x7fd3542c3208>, suspend_capture_ctx=<bound method CaptureManager.gl...state='resumed' _in_suspended=False> _capture_fixture=None>>, request=<SubRequest 'subtests' for <Function test_demo>>)

    def test_demo(subtests):
        with subtests.test("binary math"):
>           assert 1 + 1 == 10
E           assert (1 + 1) == 10

test_demo.py:4: AssertionError
=========================== short test summary info ============================
SUBFAIL test_demo.py::test_demo - assert (1 + 1) == 10
========================= 1 failed, 1 passed in 0.03s ==========================

Verbose progress report:

test_demo.py::test_demo 
[gw0] [100%] SUBFAIL test_demo.py::test_demo 
[gw0] [100%] SUBPASS test_demo.py::test_demo 
[gw0] [100%] PASSED test_demo.py::test_demo 

[radkujawa]

What's with this PR? Could it be merged? It would be nice to simply use it.

[nicoddemus]

Unfortunately this went under the radar, sorry about that.

I will try to take a look this week.