ENH: basic testing for iso8601 code which had no explicit tests + spit out ValueError for incorrect type of input and ParseError otherwise

fail2ban-testcases

@@ -167,6 +167,7 @@ tests.addTest(unittest.makeSuite(sockettestcase.Socket))
 tests.addTest(unittest.makeSuite(misctestcase.HelpersTest))
 tests.addTest(unittest.makeSuite(misctestcase.SetupTest))
 tests.addTest(unittest.makeSuite(misctestcase.TestsUtilsTest))
+tests.addTest(unittest.makeSuite(misctestcase.CustomDateFormatsTest))
 
 # Filter
 if not opts.no_network:

server/iso8601.py

@@ -111,7 +111,7 @@ def parse_date(datestring, default_timezone=UTC):
     default.
     """
     if not isinstance(datestring, basestring):
-        raise ParseError("Expecting a string %r" % datestring)
+        raise ValueError("Expecting a string %r" % datestring)
     m = ISO8601_REGEX.match(datestring)
     if not m:
         raise ParseError("Unable to parse date string %r" % datestring)
@@ -121,6 +121,11 @@ def parse_date(datestring, default_timezone=UTC):
         groups["fraction"] = 0
     else:
         groups["fraction"] = int(float("0.%s" % groups["fraction"]) * 1e6)
+
+    try:
         return datetime(int(groups["year"]), int(groups["month"]), int(groups["day"]),
             int(groups["hour"]), int(groups["minute"]), int(groups["second"]),
             int(groups["fraction"]), tz)
+    except Exception, e:
+        raise ParseError("Failed to create a valid datetime record due to: %s"
+                         % e)

testcases/misctestcase.py

@@ -167,3 +167,29 @@ class TestsUtilsTest(unittest.TestCase):
 		# in this case compressed and not should be the same (?)
 		self.assertTrue(pindex > 10)	  # we should have some traceback
 		self.assertEqual(s[:pindex], s[pindex+1:pindex*2 + 1])
+
+from server import iso8601
+import datetime
+
+class CustomDateFormatsTest(unittest.TestCase):
+
+	def testIso8601(self):
+		date = iso8601.parse_date("2007-01-25T12:00:00Z")
+		self.assertEqual(
+			date,
+			datetime.datetime(2007, 1, 25, 12, 0, tzinfo=iso8601.Utc()))
+		self.assertRaises(ValueError, iso8601.parse_date, None)
+		self.assertRaises(ValueError, iso8601.parse_date, date)
+
+		self.assertRaises(iso8601.ParseError, iso8601.parse_date, "")
+		self.assertRaises(iso8601.ParseError, iso8601.parse_date, "Z")
+
+		self.assertRaises(iso8601.ParseError,
+						  iso8601.parse_date, "2007-01-01T120:00:00Z")
+		self.assertRaises(iso8601.ParseError,
+						  iso8601.parse_date, "2007-13-01T12:00:00Z")
+
+	def testTimeZone(self):
+		# Just verify consistent operation and improve coverage ;)
+		self.assertEqual(iso8601.parse_timezone(None), iso8601.UTC)
+		self.assertEqual(iso8601.parse_timezone('Z'),  iso8601.UTC)