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))