Regression test for the dircache module, contributed by Nick Mathewson.
Modified by Fred Drake. This closes SF patch #440827.
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"""
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Test cases for the dircache module
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Nick Mathewson
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"""
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import unittest
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from test_support import run_unittest, TESTFN
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import dircache, os, time
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class DircacheTests(unittest.TestCase):
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def setUp(self):
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self.tempdir = TESTFN+"_dir"
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os.mkdir(self.tempdir)
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def tearDown(self):
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for fname in os.listdir(self.tempdir):
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self.delTemp(fname)
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os.rmdir(self.tempdir)
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def writeTemp(self, fname):
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f = open(os.path.join(self.tempdir, fname), 'w')
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f.close()
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def mkdirTemp(self, fname):
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os.mkdir(os.path.join(self.tempdir, fname))
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def delTemp(self, fname):
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fname = os.path.join(self.tempdir, fname)
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if os.path.isdir(fname):
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os.rmdir(fname)
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else:
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os.unlink(fname)
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def test_listdir(self):
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## SUCCESSFUL CASES
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entries = dircache.listdir(self.tempdir)
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self.assertEquals(entries, [])
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# Check that cache is actually caching, not just passing through.
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self.assert_(dircache.listdir(self.tempdir) is entries)
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# Sadly, dircache has the same granularity as stat.mtime, and so
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# can't notice any changes that occured within 1 sec of the last
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# time it examined a directory.
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time.sleep(1)
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self.writeTemp("test1")
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entries = dircache.listdir(self.tempdir)
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self.assertEquals(entries, ['test1'])
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self.assert_(dircache.listdir(self.tempdir) is entries)
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## UNSUCCESSFUL CASES
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self.assertEquals(dircache.listdir(self.tempdir+"_nonexistent"), [])
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def test_annotate(self):
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self.writeTemp("test2")
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self.mkdirTemp("A")
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lst = ['A', 'test2', 'test_nonexistent']
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dircache.annotate(self.tempdir, lst)
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self.assertEquals(lst, ['A/', 'test2', 'test_nonexistent'])
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run_unittest(DircacheTests)
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