/brz/remove-bazaar

# (C) 2005 Canonical Ltd

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

from bzrlib.selftest import InTempDir

def sha1(t):

    import sha

    return sha.new(t).hexdigest()

def pause():

    import time

    # allow it to stabilize

    start = int(time.time())

    while int(time.time()) == start:

        time.sleep(0.2)

class TestStatCache(InTempDir):

    """Functional tests for statcache"""

    def runTest(self):

        from bzrlib.hashcache import HashCache

        import os

        import time

        hc = HashCache('.')

        file('foo', 'wb').write('hello')

        os.mkdir('subdir')

        pause()

        self.assertEquals(hc.get_sha1('foo'),

                          'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')

        self.assertEquals(hc.miss_count, 1)

        self.assertEquals(hc.hit_count, 0)

        # check we hit without re-reading

        self.assertEquals(hc.get_sha1('foo'),

                          'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')

        self.assertEquals(hc.miss_count, 1)

        self.assertEquals(hc.hit_count, 1)

        # check again without re-reading

        self.assertEquals(hc.get_sha1('foo'),

                          'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')

        self.assertEquals(hc.miss_count, 1)

        self.assertEquals(hc.hit_count, 2)

        # write new file and make sure it is seen

        file('foo', 'wb').write('goodbye')

        pause()

        self.assertEquals(hc.get_sha1('foo'),

                          '3c8ec4874488f6090a157b014ce3397ca8e06d4f')

        self.assertEquals(hc.miss_count, 2)

        # quickly write new file of same size and make sure it is seen

        # this may rely on detection of timestamps that are too close

        # together to be safe

        file('foo', 'wb').write('g00dbye')

        self.assertEquals(hc.get_sha1('foo'),

                          sha1('g00dbye'))

        # this is not quite guaranteed to be true; we might have

        # crossed a 1s boundary before

        self.assertEquals(hc.danger_count, 1)

        self.assertEquals(hc.get_sha1('subdir'), None)

TEST_CLASSES = [

    TestStatCache,

    ]