view tests/test-simplekeyvaluefile.py @ 39317:eb9b8679c852

manifest: change terminology for storage in context classes

Storage may not be backed by revlogs. So it is wrong to refer
to storage as "revlog" or use abbreviations like "rl."

This commit replaces revlog terminology in manifest context classes
and starts referring to things as "store" or "storage."

Differential Revision: https://phab.mercurial-scm.org/D4389

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 = {b'key1': b'value1', b'Key2': b'value2'}
        scmutil.simplekeyvaluefile(self.vfs, b'kvfile').write(dw)
        self.assertEqual(sorted(self.vfs.read(b'kvfile').split(b'\n')),
                         [b'', b'Key2=value2', b'key1=value1'])
        dr = scmutil.simplekeyvaluefile(self.vfs, b'kvfile').read()
        self.assertEqual(dr, dw)

    if not getattr(unittest.TestCase, 'assertRaisesRegex', False):
        # Python 3.7 deprecates the regex*p* version, but 2.7 lacks
        # the regex version.
        assertRaisesRegex = (# camelcase-required
            unittest.TestCase.assertRaisesRegexp)

    def testinvalidkeys(self):
        d = {b'0key1': b'value1', b'Key2': b'value2'}
        with self.assertRaisesRegex(error.ProgrammingError,
                                     'keys must start with a letter.*'):
            scmutil.simplekeyvaluefile(self.vfs, b'kvfile').write(d)

        d = {b'key1@': b'value1', b'Key2': b'value2'}
        with self.assertRaisesRegex(error.ProgrammingError, 'invalid key.*'):
            scmutil.simplekeyvaluefile(self.vfs, b'kvfile').write(d)

    def testinvalidvalues(self):
        d = {b'key1': b'value1', b'Key2': b'value2\n'}
        with self.assertRaisesRegex(error.ProgrammingError,  'invalid val.*'):
            scmutil.simplekeyvaluefile(self.vfs, b'kvfile').write(d)

    def testcorruptedfile(self):
        self.vfs.contents[b'badfile'] = b'ababagalamaga\n'
        with self.assertRaisesRegex(error.CorruptedState,
                                     'dictionary.*element.*'):
            scmutil.simplekeyvaluefile(self.vfs, b'badfile').read()

    def testfirstline(self):
        dw = {b'key1': b'value1'}
        scmutil.simplekeyvaluefile(self.vfs, b'fl').write(dw, firstline=b'1.0')
        self.assertEqual(self.vfs.read(b'fl'), b'1.0\nkey1=value1\n')
        dr = scmutil.simplekeyvaluefile(self.vfs, b'fl')\
                    .read(firstlinenonkeyval=True)
        self.assertEqual(dr, {b'__firstline': b'1.0', b'key1': b'value1'})

if __name__ == "__main__":
    silenttestrunner.main(__name__)