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//usr/lib/python2.4/test/test_dircache.py
""" Test cases for the dircache module Nick Mathewson """ import unittest from test.test_support import run_unittest, TESTFN import dircache, os, time, sys, tempfile class DircacheTests(unittest.TestCase): def setUp(self): self.tempdir = tempfile.mkdtemp() def tearDown(self): for fname in os.listdir(self.tempdir): self.delTemp(fname) os.rmdir(self.tempdir) def writeTemp(self, fname): f = open(os.path.join(self.tempdir, fname), 'w') f.close() def mkdirTemp(self, fname): os.mkdir(os.path.join(self.tempdir, fname)) def delTemp(self, fname): fname = os.path.join(self.tempdir, fname) if os.path.isdir(fname): os.rmdir(fname) else: os.unlink(fname) def test_listdir(self): ## SUCCESSFUL CASES entries = dircache.listdir(self.tempdir) self.assertEquals(entries, []) # Check that cache is actually caching, not just passing through. self.assert_(dircache.listdir(self.tempdir) is entries) # Directories aren't "files" on Windows, and directory mtime has # nothing to do with when files under a directory get created. # That is, this test can't possibly work under Windows -- dircache # is only good for capturing a one-shot snapshot there. if sys.platform[:3] not in ('win', 'os2'): # Sadly, dircache has the same granularity as stat.mtime, and so # can't notice any changes that occurred within 1 sec of the last # time it examined a directory. time.sleep(1) self.writeTemp("test1") entries = dircache.listdir(self.tempdir) self.assertEquals(entries, ['test1']) self.assert_(dircache.listdir(self.tempdir) is entries) ## UNSUCCESSFUL CASES self.assertRaises(OSError, dircache.listdir, self.tempdir+"_nonexistent") def test_annotate(self): self.writeTemp("test2") self.mkdirTemp("A") lst = ['A', 'test2', 'test_nonexistent'] dircache.annotate(self.tempdir, lst) self.assertEquals(lst, ['A/', 'test2', 'test_nonexistent']) def test_main(): run_unittest(DircacheTests) if __name__ == "__main__": test_main()