"""test behavior of propertycache and unfiltered propertycache

The repoview overlay is quite complex. We test the behavior of

property cache of both localrepo and repoview to prevent

regression."""

from __future__ import absolute_import, print_function

import os

import subprocess

from mercurial import (

    hg,

    localrepo,

    ui as uimod,

    util,

)

# create some special property cache that trace they call

calllog = []

@util.propertycache

def testcachedfoobar(repo):

    name = repo.filtername

    if name is None:

        name = ''

    val = len(name)

    calllog.append(val)

    return val

unficalllog = []

@localrepo.unfilteredpropertycache

def testcachedunfifoobar(repo):

    name = repo.filtername

    if name is None:

        name = ''

    val = 100 + len(name)

    unficalllog.append(val)

    return val

#plug them on repo

localrepo.localrepository.testcachedfoobar = testcachedfoobar

localrepo.localrepository.testcachedunfifoobar = testcachedunfifoobar

# Create an empty repo and instantiate it. It is important to run

# these tests on the real object to detect regression.

repopath = os.path.join(os.environ['TESTTMP'], 'repo')

assert subprocess.call(['hg', 'init', repopath]) == 0

ui = uimod.ui.load()

repo = hg.repository(ui, path=repopath).unfiltered()

print('')

print('=== property cache ===')

print('')

print('calllog:', calllog)

print('cached value (unfiltered):',

    vars(repo).get('testcachedfoobar', 'NOCACHE'))

print('')

print('= first access on unfiltered, should do a call')

print('access:', repo.testcachedfoobar)

print('calllog:', calllog)

print('cached value (unfiltered):',

    vars(repo).get('testcachedfoobar', 'NOCACHE'))

print('')

print('= second access on unfiltered, should not do call')

print('access', repo.testcachedfoobar)

print('calllog:', calllog)

print('cached value (unfiltered):',

    vars(repo).get('testcachedfoobar', 'NOCACHE'))

print('')

print('= first access on "visible" view, should do a call')

visibleview = repo.filtered('visible')

print('cached value ("visible" view):',

    vars(visibleview).get('testcachedfoobar', 'NOCACHE'))

print('access:', visibleview.testcachedfoobar)

print('calllog:', calllog)

print('cached value (unfiltered):',

    vars(repo).get('testcachedfoobar', 'NOCACHE'))

print('cached value ("visible" view):',

    vars(visibleview).get('testcachedfoobar', 'NOCACHE'))

print('')

print('= second access on "visible view", should not do call')

print('access:', visibleview.testcachedfoobar)

print('calllog:', calllog)

print('cached value (unfiltered):',

    vars(repo).get('testcachedfoobar', 'NOCACHE'))

print('cached value ("visible" view):',

    vars(visibleview).get('testcachedfoobar', 'NOCACHE'))

print('')

print('= no effect on other view')

immutableview = repo.filtered('immutable')

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedfoobar', 'NOCACHE'))

print('access:', immutableview.testcachedfoobar)

print('calllog:', calllog)

print('cached value (unfiltered):',

    vars(repo).get('testcachedfoobar', 'NOCACHE'))

print('cached value ("visible" view):',

    vars(visibleview).get('testcachedfoobar', 'NOCACHE'))

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedfoobar', 'NOCACHE'))

# unfiltered property cache test

print('')

print('')

print('=== unfiltered property cache ===')

print('')

print('unficalllog:', unficalllog)

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("visible" view):  ',

    vars(visibleview).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedunfifoobar', 'NOCACHE'))

print('')

print('= first access on unfiltered, should do a call')

print('access (unfiltered):', repo.testcachedunfifoobar)

print('unficalllog:', unficalllog)

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('')

print('= second access on unfiltered, should not do call')

print('access (unfiltered):', repo.testcachedunfifoobar)

print('unficalllog:', unficalllog)

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('')

print('= access on view should use the unfiltered cache')

print('access (unfiltered):      ', repo.testcachedunfifoobar)

print('access ("visible" view):  ', visibleview.testcachedunfifoobar)

print('access ("immutable" view):', immutableview.testcachedunfifoobar)

print('unficalllog:', unficalllog)

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("visible" view):  ',

    vars(visibleview).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedunfifoobar', 'NOCACHE'))

print('')

print('= even if we clear the unfiltered cache')

del repo.__dict__['testcachedunfifoobar']

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("visible" view):  ',

    vars(visibleview).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedunfifoobar', 'NOCACHE'))

print('unficalllog:', unficalllog)

print('access ("visible" view):  ', visibleview.testcachedunfifoobar)

print('unficalllog:', unficalllog)

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("visible" view):  ',

    vars(visibleview).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedunfifoobar', 'NOCACHE'))

print('access ("immutable" view):', immutableview.testcachedunfifoobar)

print('unficalllog:', unficalllog)

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("visible" view):  ',

    vars(visibleview).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedunfifoobar', 'NOCACHE'))

print('access (unfiltered):      ', repo.testcachedunfifoobar)

print('unficalllog:', unficalllog)

print('cached value (unfiltered):      ',

    vars(repo).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("visible" view):  ',

    vars(visibleview).get('testcachedunfifoobar', 'NOCACHE'))

print('cached value ("immutable" view):',

    vars(immutableview).get('testcachedunfifoobar', 'NOCACHE'))