diff --git a/mis_builder/tests/test_mis_safe_eval.py b/mis_builder/tests/test_mis_safe_eval.py
new file mode 100644
index 00000000..7ede0641
--- /dev/null
+++ b/mis_builder/tests/test_mis_safe_eval.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# © 2016 ACSONE SA/NV (<http://acsone.eu>)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+import openerp.tests.common as common
+
+from ..models.mis_safe_eval import mis_safe_eval, DataError
+
+
+class TestMisSafeEval(common.TransactionCase):
+
+    def test_nominal(self):
+        val = mis_safe_eval('a + 1', {'a': 1})
+        self.assertEqual(val, 2)
+
+    def test_exceptions(self):
+        val = mis_safe_eval('1/0', {})  # division by zero
+        self.assertTrue(isinstance(val, DataError))
+        self.assertEqual(val.name, '#DIV/0')
+        val = mis_safe_eval('1a', {})  # syntax error
+        self.assertTrue(isinstance(val, DataError))
+        self.assertEqual(val.name, '#ERR')
+
+    def test_name_error(self):
+        with self.assertRaises(NameError):
+            mis_safe_eval('a + 1', {})