Fixed some bugs

tests/BaseTest.py

@@ -80,6 +80,13 @@ class BaseTest:
 
     @staticmethod
     def get_concept_instance(sheerka, concept, **kwargs):
+        """
+        Use to instantiate concept with default variables already set
+        :param sheerka:
+        :param concept:
+        :param kwargs:
+        :return:
+        """
         instance = sheerka.new(concept.key if isinstance(concept, Concept) else concept)
         for i, var in enumerate(instance.metadata.variables):
             if var[0] in kwargs: