Move parse_header to Milter.utils.

Test case for delayed DSN parsing.
Fix plock when source missing or cannot set owner/group.

testutils.py

@@ -0,0 +1,36 @@
+import unittest
+import doctest
+import os
+import Milter.utils
+from Milter.cache import AddrCache
+
+class AddrCacheTestCase(unittest.TestCase):
+
+  def setUp(self):
+    self.fname = 'test.dat'
+    self.cache = AddrCache(fname=self.fname)
+
+  def tearDown(self):
+    os.remove(self.fname)
+
+  def testAdd(self):
+    cache = self.cache
+    cache['foo@bar.com'] = None
+    cache.addperm('baz@bar.com')
+    cache['temp@bar.com'] = 'testing'
+    self.failUnless(cache.has_key('foo@bar.com'))
+    self.failUnless(not cache.has_key('hello@bar.com'))
+    self.failUnless('baz@bar.com' in cache)
+    self.assertEquals(cache['temp@bar.com'],'testing')
+    s = open(self.fname).readlines()
+    self.failUnless(len(s) == 2)
+    self.failUnless(s[0].startswith('foo@bar.com '))
+    self.assertEquals(s[1].strip(),'baz@bar.com')
+
+def suite(): 
+  s = unittest.makeSuite(AddrCacheTestCase,'test')
+  s.addTest(doctest.DocTestSuite(Milter.utils))
+  return s
+
+if __name__ == '__main__':
+  unittest.TextTestRunner().run(suite())