Add value_separator option to specify how JSON values are being split

- Fixes issue 43

test/test_args.py

@@ -27,3 +27,8 @@ class ArgsTest(unittest.TestCase):
     def test_parser_with_port(self):
         parser = parseArgs(['-H', 'foobar', '-P', '8888'])
         self.assertEqual(parser.port, '8888')
+
+    def test_parser_with_separator(self):
+        parser = parseArgs(['-H', 'foobar', '-f', '_', '-F', '_'])
+        self.assertEqual(parser.separator, '_')
+        self.assertEqual(parser.value_separator, '_')

test/test_check_http_json.py

@@ -19,6 +19,7 @@ UNKNOWN_CODE = 3
 
 class RulesHelper:
     separator = '.'
+    value_separator = ':'
     debug = False
     key_threshold_warning = None
     key_value_list = None
@@ -123,6 +124,17 @@ class UtilTest(unittest.TestCase):
         self.check_data(RulesHelper().dash_q(['metric,5']),
                         '{"metric": 5}', OK_CODE)
 
+    def test_equality_colon(self):
+        """
+        See https://github.com/drewkerrigan/nagios-http-json/issues/43
+        """
+        rules = RulesHelper()
+        rules.value_separator = '_'
+
+        # This should not fail
+        self.check_data(rules.dash_q(['metric,foo:bar']),
+                        '{"metric": "foo:bar"}', OK_CODE)
+
     def test_non_equality(self):
         self.check_data(RulesHelper().dash_y(['metric,6']),
                         '{"metric": 6}', WARNING_CODE)