tests/test-simplekeyvaluefile.py

histedit: pass multiple nodes to strip (BC)

Previously, histedit.cleanupnode pass root nodes one by one. Since
repair.strip takes multiple nodes and can handle them just fine, pass all
strip roots at once.

This is BC because the number of strip backup files may change from N to 1.

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__)