Skip progress display when in non-terminal

[nicoddemus]

Similar to pytest-dev/pytest#1397

[nicoddemus]

Dropped pytest 2.4 and 2.5 from build Matrix and added pytest 2.9.

Question: do we really need to support such old pytest versions? I would think it reasonable to support only the most current and previous version, i. e. 2.8 and 2.9 currently.

[nicoddemus]

@RonnyPfannschmidt any idea why the test suite is failing in pytest-2.9?

=================================== FAILURES ===================================
____________________________ test_remoteinitconfig _____________________________
testdir = <Testdir local('/tmp/pytest-of-travis/pytest-0/testdir/test_remoteinitconfig0')>
    def test_remoteinitconfig(testdir):
        from xdist.remote import remote_initconfig
        config1 = testdir.parseconfig()
        config2 = remote_initconfig(config1.option.__dict__, config1.args)
>       assert config2.option.__dict__ == config1.option.__dict__
E       assert {'assertmode'...': False, ...} == {'assertmode':...': False, ...}
E         Omitting 56 identical items, use -v to show
E         Differing items:
E         {'file_or_dir': ['/tmp/pytest-of-travis/pytest-0/testdir/test_remoteinitconfig0']} != {'file_or_dir': []}
E         Use -v to get the full diff
/home/travis/build/pytest-dev/pytest-xdist/testing/test_remote.py:69: AssertionError

[RonnyPfannschmidt]

on first glance i think that instead of hasattr, we should use getattr(self.tr, 'isatty', self.tr.hasmarkup)

[RonnyPfannschmidt]

off hand no idea

[nicoddemus]

OK thanks, I will investigate later, although it seems this is broken in master already because it seems unrelated to my change.

[RonnyPfannschmidt]

i would guess its related to the change @bukzor (?) did to fix wrong behavior wrt xdist context initialization

[nicoddemus]

It's my hunch as well

[RonnyPfannschmidt]

please xfail it and report an issue where we can solve it

[nicoddemus]

Will do 😁

[nicoddemus]

@RonnyPfannschmidt created #59 as we agreed.

Let me know your thoughts on this patch when you can. 😁

[RonnyPfannschmidt]

thanks 👍

[nicoddemus]

Thank you. I will take a look at #59 later.