unused code removed

tests/base_class_database_test.py

@@ -21,6 +21,3 @@ class MongoDbTest(unittest.TestCase):
     def add_list_test_data(self):
         self.test_collection.insert_one({"test_list": ["a", "b", "c"]})
         self.test_collection.insert_one({"test_list": ["c", "d"]})
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_aggregate.py

 from common_helper_mongo.aggregate import get_objects_and_count_of_occurrence,\
     get_field_sum, get_field_average, get_list_of_all_values,\
     get_list_of_all_values_and_collect_information_of_additional_field
-import unittest
 from tests.base_class_database_test import MongoDbTest
 
 
@@ -68,7 +67,3 @@ class TestAggregate(MongoDbTest):
         self.add_simple_test_data()
         result = get_field_sum(self.test_collection, "$test_int", match={"test_int": {"$lt": 5}})
         self.assertEqual(result, 10)
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_gridfs.py

-import unittest
 import gridfs
 
 from common_helper_mongo.gridfs import overwrite_file
@@ -19,7 +18,3 @@ class TestGridFS(MongoDbTest):
         self.assertEqual(len(self.fs.list()), 1, "original file not deleted")
         changed_content = self.fs.find_one({'filename': "test_file"}).read()
         self.assertEqual(changed_content, b'changed', "content not correct")
-
-
-if __name__ == "__main__":
-    unittest.main()