| 1 | """
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| 2 | Test cases for the dircache module
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| 3 | Nick Mathewson
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| 4 | """
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| 5 |
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| 6 | import unittest
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| 7 | from test.test_support import run_unittest, TESTFN
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| 8 | import dircache, os, time, sys, tempfile
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| 9 |
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| 10 |
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| 11 | class DircacheTests(unittest.TestCase):
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| 12 | def setUp(self):
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| 13 | self.tempdir = tempfile.mkdtemp()
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| 14 |
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| 15 | def tearDown(self):
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| 16 | for fname in os.listdir(self.tempdir):
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| 17 | self.delTemp(fname)
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| 18 | os.rmdir(self.tempdir)
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| 19 |
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| 20 | def writeTemp(self, fname):
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| 21 | f = open(os.path.join(self.tempdir, fname), 'w')
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| 22 | f.close()
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| 23 |
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| 24 | def mkdirTemp(self, fname):
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| 25 | os.mkdir(os.path.join(self.tempdir, fname))
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| 26 |
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| 27 | def delTemp(self, fname):
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| 28 | fname = os.path.join(self.tempdir, fname)
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| 29 | if os.path.isdir(fname):
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| 30 | os.rmdir(fname)
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| 31 | else:
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| 32 | os.unlink(fname)
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| 33 |
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| 34 | def test_listdir(self):
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| 35 | ## SUCCESSFUL CASES
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| 36 | entries = dircache.listdir(self.tempdir)
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| 37 | self.assertEquals(entries, [])
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| 38 |
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| 39 | # Check that cache is actually caching, not just passing through.
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| 40 | self.assert_(dircache.listdir(self.tempdir) is entries)
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| 41 |
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| 42 | # Directories aren't "files" on Windows, and directory mtime has
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| 43 | # nothing to do with when files under a directory get created.
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| 44 | # That is, this test can't possibly work under Windows -- dircache
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| 45 | # is only good for capturing a one-shot snapshot there.
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| 46 |
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| 47 | if sys.platform[:3] not in ('win', 'os2'):
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| 48 | # Sadly, dircache has the same granularity as stat.mtime, and so
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| 49 | # can't notice any changes that occurred within 1 sec of the last
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| 50 | # time it examined a directory.
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| 51 | time.sleep(1)
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| 52 | self.writeTemp("test1")
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| 53 | entries = dircache.listdir(self.tempdir)
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| 54 | self.assertEquals(entries, ['test1'])
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| 55 | self.assert_(dircache.listdir(self.tempdir) is entries)
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| 56 |
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| 57 | ## UNSUCCESSFUL CASES
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| 58 | self.assertRaises(OSError, dircache.listdir, self.tempdir+"_nonexistent")
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| 59 |
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| 60 | def test_annotate(self):
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| 61 | self.writeTemp("test2")
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| 62 | self.mkdirTemp("A")
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| 63 | lst = ['A', 'test2', 'test_nonexistent']
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| 64 | dircache.annotate(self.tempdir, lst)
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| 65 | self.assertEquals(lst, ['A/', 'test2', 'test_nonexistent'])
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| 66 |
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| 67 |
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| 68 | def test_main():
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| 69 | run_unittest(DircacheTests)
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| 70 |
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| 71 |
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| 72 | if __name__ == "__main__":
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| 73 | test_main()
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