1
# (C) 2005 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
from bzrlib.selftest import TestCaseInTempDir
23
return sha.new(t).hexdigest()
28
# enable this to get more accurate testing
30
# allow it to stabilize
31
start = int(time.time())
32
while int(time.time()) == start:
36
class TestHashCache(TestCaseInTempDir):
38
def test_hashcache(self):
39
"""Functional tests for hashcache"""
40
from bzrlib.hashcache import HashCache
43
# make a dummy bzr directory just to hold the cache
47
file('foo', 'wb').write('hello')
51
self.assertEquals(hc.get_sha1('foo'),
52
'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')
53
self.assertEquals(hc.miss_count, 1)
54
self.assertEquals(hc.hit_count, 0)
56
# check we hit without re-reading
57
self.assertEquals(hc.get_sha1('foo'),
58
'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')
59
##self.assertEquals(hc.miss_count, 1)
60
##self.assertEquals(hc.hit_count, 1)
62
# check again without re-reading
63
self.assertEquals(hc.get_sha1('foo'),
64
'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')
65
##self.assertEquals(hc.miss_count, 1)
66
##self.assertEquals(hc.hit_count, 2)
68
# write new file and make sure it is seen
69
file('foo', 'wb').write('goodbye')
71
self.assertEquals(hc.get_sha1('foo'),
72
'3c8ec4874488f6090a157b014ce3397ca8e06d4f')
73
##self.assertEquals(hc.miss_count, 2)
75
# quickly write new file of same size and make sure it is seen
76
# this may rely on detection of timestamps that are too close
78
file('foo', 'wb').write('g00dbye')
79
self.assertEquals(hc.get_sha1('foo'),
82
file('foo2', 'wb').write('other file')
83
self.assertEquals(hc.get_sha1('foo2'), sha1('other file'))
86
self.assertEquals(hc.get_sha1('foo2'), None)
88
file('foo2', 'wb').write('new content')
89
self.assertEquals(hc.get_sha1('foo2'), sha1('new content'))
91
self.assertEquals(hc.get_sha1('subdir'), None)
93
# it's likely neither are cached at the moment because they
94
# changed recently, but we can't be sure
97
# should now be safe to cache it if we reread them
98
self.assertEquals(hc.get_sha1('foo'), sha1('g00dbye'))
99
##self.assertEquals(len(hc._cache), 1)
100
self.assertEquals(hc.get_sha1('foo2'), sha1('new content'))
101
##self.assertEquals(len(hc._cache), 2)
103
# write out, read back in and check that we don't need to
111
##self.assertEquals(len(hc._cache), 2)
112
self.assertEquals(hc.get_sha1('foo'), sha1('g00dbye'))
113
##self.assertEquals(hc.hit_count, 1)
114
##self.assertEquals(hc.miss_count, 0)
115
self.assertEquals(hc.get_sha1('foo2'), sha1('new content'))