view tests/test-ui-color.py @ 52153:a81d2cafdbcc stable

tests: stabilize `test-extdiff.t` on macOS

The recent change in the extdiff extension to take into account whether the GUI
is accessible in d1b54c152673 started triggering this.  I was able to run the
test cleanly without this change at the console, but somewhere along the line, I
read that the CI runner isn't able to access the GUI when not run as the root
user.  This is causing CI failures, so we conditionalize these tests out where
`DISPLAY` is set to a non empty value to force `procutil.isgui()` to be True,
when it in fact doesn't have GUI access.

import os
from mercurial import (
    dispatch,
    ui as uimod,
)
from mercurial.utils import stringutil

# ensure errors aren't buffered
testui = uimod.ui()
testui.pushbuffer()
testui.writenoi18n(b'buffered\n')
testui.warnnoi18n(b'warning\n')
testui.write_err(b'error\n')
print(stringutil.pprint(testui.popbuffer(), bprefix=True).decode('ascii'))

# test dispatch.dispatch with the same ui object
hgrc = open(os.environ["HGRCPATH"], 'wb')
hgrc.write(b'[extensions]\n')
hgrc.write(b'color=\n')
hgrc.close()

ui_ = uimod.ui.load()
ui_.setconfig(b'ui', b'formatted', b'True')

# we're not interested in the output, so write that to devnull
ui_.fout = open(os.devnull, 'wb')


# call some arbitrary command just so we go through
# color's wrapped _runcommand twice.
def runcmd():
    dispatch.dispatch(dispatch.request([b'version', b'-q'], ui_))


runcmd()
print("colored? %s" % (ui_._colormode is not None))
runcmd()
print("colored? %s" % (ui_._colormode is not None))