Added the test_regex module under version control

tests/datahandlers/__init__.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+

tests/datahandlers/test_regex.py

@@ -0,0 +1,40 @@
+import unittest
+
+from lodel.leapi.datahandlers.datas import Regex, Varchar
+
+
+class RegexTestCase(unittest.TestCase):
+
+    def test_check_correct_data_value(self):
+        test_value = '126.205.255.12'
+        test_regex = Regex('^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$', max_length=100)
+        value, error = test_regex._check_data_value(test_value)
+        self.assertIsNone(error)
+        self.assertEqual(value, test_value)
+
+    def test_check_bad_data_value(self):
+        test_regex = Regex('^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$', max_length=15)
+        for test_value in ['800.9.10.5', 'test_string_value', '999.999.999.999']:
+            value, error = test_regex._check_data_value(test_value)
+            self.assertEqual(value, '')
+            self.assertIsNotNone(error)
+
+    def test_check_max_length(self):
+        test_max_length = 15
+        test_regex = Regex('[a-z]+8?', max_length=15)
+        for test_value in ['cccccc8', 'ccccccccccccccccccccccccccccccccc8']:
+            value, error = test_regex._check_data_value(test_value)
+            if len(test_value)>test_max_length:
+                self.assertEqual(value, '')
+                self.assertIsNotNone(error)
+            else:
+                self.assertIsNone(error)
+                self.assertEqual(value, test_value)
+
+    def test_can_override(self):
+        test_regex = Regex('^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$', max_length=15)
+        for test_varchar in [Varchar(max_length=64), Varchar(max_length=15), Varchar(max_length=9)]:
+            if test_regex.max_length == test_varchar.max_length:
+                self.assertTrue(test_regex.can_override(test_varchar))
+            else:
+                self.assertFalse(test_regex.can_override(test_varchar))