tko/parsers: make status_line parsing more robust to bad inputs

tko/parsers/version_0_unittest.py

Index: tko/parsers/version_0_unittest.py
diff --git a/tko/parsers/version_0_unittest.py b/tko/parsers/version_0_unittest.py
index 4807beecb67d0283844a458ece68a1b420ccc96a..ddcfd09dd18d4870dbe3c72257521ab537816e30 100755
--- a/tko/parsers/version_0_unittest.py
+++ b/tko/parsers/version_0_unittest.py
@@ -216,7 +216,7 @@ class test_status_line(unittest.TestCase):
     def test_parse_line_handles_newline(self):
         input_data = ("\t\tGOOD\t----\t----\t"
                       "field1=val1\tfield2=val2\tNo newline here!")
-        for suffix in ("", "\n"):
+        for suffix in ("", "\n", "\n\n"):
             line = version_0.status_line.parse_line(input_data +
                                                     suffix)
             self.assertEquals(line.indent, 2)
@@ -261,9 +261,8 @@ class test_status_line(unittest.TestCase):
 
     def test_parse_line_fails_on_bad_optional_fields(self):
         input_data = "GOOD\tfield1\tfield2\tfield3\tfield4"
-        self.assertRaises(AssertionError,
-                          version_0.status_line.parse_line,
-                          input_data)
+        self.assertEquals(None,
+                          version_0.status_line.parse_line(input_data))
 
 
 if __name__ == "__main__":