Added a test for the check data functionnality of the Boolean datahandler

lodel/leapi/datahandlers/datas_base.py

@@ -13,13 +13,14 @@ class Boolean(DataField):
     ##@brief A boolean field
     def __init__(self, **kwargs):
         if 'check_data_value' not in kwargs:
-            kwargs['check_data_value'] = self.check_value
+            kwargs['check_data_value'] = self.check_data_value
         super().__init__(ftype='bool', **kwargs)
 
     def _check_data_value(self, value):
         error = None
         try:
-            value = bool(value)
+            if type(value) != bool:
+                raise TypeError()
         except(ValueError, TypeError):
             error = TypeError("The value '%s' is not, and will never, be a boolean" % value)
         return value, error

tests/datahandlers/test_boolean.py

@@ -0,0 +1,19 @@
+import unittest
+
+from lodel.leapi.datahandlers.datas import Boolean
+
+
+class BooleanTestCase(unittest.TestCase):
+
+    def test_boolean_check_data_value(self):
+        test_boolean = Boolean()
+
+        # correct values
+        for test_value in [True, False]:
+            value, error = test_boolean._check_data_value(test_value)
+            self.assertIsNone(error)
+
+        # incorrect values
+        for test_value in ['ok', 'True', 'False']:
+            value, error = test_boolean._check_data_value(test_value)
+            self.assertIsNotNone(error)