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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from bzrlib.selftest import InTempDir
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from bzrlib.selftest import TestCaseInTempDir
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if sys.platform in ('win32', 'cygwin'):
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# allow it to stabilize
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start = int(time.time())
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while int(time.time()) == start:
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class TestHashCache(TestCaseInTempDir):
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class TestHashCache(InTempDir):
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"""Functional tests for hashcache"""
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def test_hashcache(self):
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"""Functional tests for hashcache"""
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from bzrlib.hashcache import HashCache
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# make a dummy bzr directory just to hold the cache
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# check we hit without re-reading
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self.assertEquals(hc.get_sha1('foo'),
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'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')
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self.assertEquals(hc.miss_count, 1)
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self.assertEquals(hc.hit_count, 1)
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##self.assertEquals(hc.miss_count, 1)
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##self.assertEquals(hc.hit_count, 1)
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# check again without re-reading
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self.assertEquals(hc.get_sha1('foo'),
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'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d')
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self.assertEquals(hc.miss_count, 1)
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self.assertEquals(hc.hit_count, 2)
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##self.assertEquals(hc.miss_count, 1)
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##self.assertEquals(hc.hit_count, 2)
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# write new file and make sure it is seen
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file('foo', 'wb').write('goodbye')
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self.assertEquals(hc.get_sha1('foo'),
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'3c8ec4874488f6090a157b014ce3397ca8e06d4f')
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self.assertEquals(hc.miss_count, 2)
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##self.assertEquals(hc.miss_count, 2)
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# quickly write new file of same size and make sure it is seen
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# this may rely on detection of timestamps that are too close
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# should now be safe to cache it if we reread them
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self.assertEquals(hc.get_sha1('foo'), sha1('g00dbye'))
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self.assertEquals(len(hc._cache), 1)
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##self.assertEquals(len(hc._cache), 1)
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self.assertEquals(hc.get_sha1('foo2'), sha1('new content'))
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self.assertEquals(len(hc._cache), 2)
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##self.assertEquals(len(hc._cache), 2)
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# write out, read back in and check that we don't need to
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# re-read any files
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hc = HashCache('.')
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self.assertEquals(len(hc._cache), 2)
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##self.assertEquals(len(hc._cache), 2)
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self.assertEquals(hc.get_sha1('foo'), sha1('g00dbye'))
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self.assertEquals(hc.hit_count, 1)
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self.assertEquals(hc.miss_count, 0)
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##self.assertEquals(hc.hit_count, 1)
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##self.assertEquals(hc.miss_count, 0)
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self.assertEquals(hc.get_sha1('foo2'), sha1('new content'))