ui: add support for a tweakdefaults knob
We've been talking for years about a one-stop config knob to opt in to
better behavior. There have been a lot of ideas thrown around, but
they all seem to be too complicated to get anyone to actually do the
work.. As such, this patch is the stupidest thing that can possibly
work in the name of getting a good feature to users.
Right now it's just three config settings that I think are generally
uncontroversial, but I expect to add more soon. That will likely
include adding new config knobs for the express purpose of adding them
to tweakdefaults.
from __future__ import absolute_import
import unittest
import silenttestrunner
from mercurial import (
error,
scmutil,
)
class mockfile(object):
def __init__(self, name, fs):
self.name = name
self.fs = fs
def __enter__(self):
return self
def __exit__(self, *args, **kwargs):
pass
def write(self, text):
self.fs.contents[self.name] = text
def read(self):
return self.fs.contents[self.name]
class mockvfs(object):
def __init__(self):
self.contents = {}
def read(self, path):
return mockfile(path, self).read()
def readlines(self, path):
# lines need to contain the trailing '\n' to mock the real readlines
return [l for l in mockfile(path, self).read().splitlines(True)]
def __call__(self, path, mode, atomictemp):
return mockfile(path, self)
class testsimplekeyvaluefile(unittest.TestCase):
def setUp(self):
self.vfs = mockvfs()
def testbasicwritingiandreading(self):
dw = {'key1': 'value1', 'Key2': 'value2'}
scmutil.simplekeyvaluefile(self.vfs, 'kvfile').write(dw)
self.assertEqual(sorted(self.vfs.read('kvfile').split('\n')),
['', 'Key2=value2', 'key1=value1'])
dr = scmutil.simplekeyvaluefile(self.vfs, 'kvfile').read()
self.assertEqual(dr, dw)
def testinvalidkeys(self):
d = {'0key1': 'value1', 'Key2': 'value2'}
with self.assertRaisesRegexp(error.ProgrammingError,
'keys must start with a letter.*'):
scmutil.simplekeyvaluefile(self.vfs, 'kvfile').write(d)
d = {'key1@': 'value1', 'Key2': 'value2'}
with self.assertRaisesRegexp(error.ProgrammingError, 'invalid key.*'):
scmutil.simplekeyvaluefile(self.vfs, 'kvfile').write(d)
def testinvalidvalues(self):
d = {'key1': 'value1', 'Key2': 'value2\n'}
with self.assertRaisesRegexp(error.ProgrammingError, 'invalid val.*'):
scmutil.simplekeyvaluefile(self.vfs, 'kvfile').write(d)
def testcorruptedfile(self):
self.vfs.contents['badfile'] = 'ababagalamaga\n'
with self.assertRaisesRegexp(error.CorruptedState,
'dictionary.*element.*'):
scmutil.simplekeyvaluefile(self.vfs, 'badfile').read()
def testfirstline(self):
dw = {'key1': 'value1'}
scmutil.simplekeyvaluefile(self.vfs, 'fl').write(dw, firstline='1.0')
self.assertEqual(self.vfs.read('fl'), '1.0\nkey1=value1\n')
dr = scmutil.simplekeyvaluefile(self.vfs, 'fl')\
.read(firstlinenonkeyval=True)
self.assertEqual(dr, {'__firstline': '1.0', 'key1': 'value1'})
if __name__ == "__main__":
silenttestrunner.main(__name__)