Wrote first unit tests

.gitlab-ci.yml

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+image: python:3
+
+pythonTests:
+    script:
+        - python -m unittest -v test/test_mac_local.py

test/test_mac_local.py

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+import unittest
+from unittest.mock import Mock
+
+from uncloud.hack.mac import MAC
+from uncloud import UncloudException
+
+class TestMacLocal(unittest.TestCase):
+    def setUp(self):
+        self.config = Mock()
+        self.config.arguments = {"no_db":True}
+        self.mac = MAC(self.config)
+        self.mac.create()
+
+    def testMacInt(self):
+        self.assertEqual(self.mac.__int__(), int("0x420000000001",0), "wrong first MAC index")
+
+    def testMacRepr(self):
+        self.assertEqual(self.mac.__repr__(), '420000000001', "wrong first MAC index")
+
+    def testMacStr(self):
+        self.assertEqual(self.mac.__str__(), '42:00:00:00:00:01', "wrong first MAC index")
+
+    def testValidationRaise(self):
+        with self.assertRaises(UncloudException):
+            self.mac.validate_mac("2")
+
+    def testValidation(self):
+        self.assertTrue(self.mac.validate_mac("42:00:00:00:00:01"), "Validation of a given MAC not working properly")
+
+    def testNextMAC(self):
+        self.mac.create()
+        self.assertEqual(self.mac.__repr__(), '420000000001', "wrong second MAC index")
+        self.assertEqual(self.mac.__int__(), int("0x420000000001",0), "wrong second MAC index")
+        self.assertEqual(self.mac.__str__(), '42:00:00:00:00:01', "wrong second MAC index")
+
+if __name__ == '__main__':
+    unittest.main()