diff --git a/src/backend/backend_ga.py b/src/backend/backend_ga.py
index 7171c09..9bbec94 100644
--- a/src/backend/backend_ga.py
+++ b/src/backend/backend_ga.py
@@ -115,6 +115,9 @@ def generate_new_cid_file(self):
     def cid_file_initialized(self):
         return self.cid is not None
 
+    def set_stats(self, data: dict):
+        pass
+
 
 def is_valid_cid(cid: str):
     try:
diff --git a/src/main_test.py b/src/main_test.py
index 29d79de..f599f87 100644
--- a/src/main_test.py
+++ b/src/main_test.py
@@ -72,7 +72,8 @@ def make_message(self, client_id, app_name, app_version, category, action, label
                                          'event_count': value,
                                          'session_id': session_id,
                                          'app_name': app_name,
-                                         'app_version': app_version}
+                                         'app_version': app_version,
+                                         'usage_count': 1}
                                     }
                                ]}
 
diff --git a/src/utils/stats_processor_test.py b/src/utils/stats_processor_test.py
index e321d0e..5b8aaf3 100644
--- a/src/utils/stats_processor_test.py
+++ b/src/utils/stats_processor_test.py
@@ -30,36 +30,36 @@ def test_stats_usage(self):
 
                     # Test first creation of statistics file
                     self.stats_processor.update_stats(test_data1)
-                    assert os.path.exists(stats_filename)
+                    self.assertTrue(os.path.exists(stats_filename))
                     with open(stats_filename, 'r') as file:
-                        assert file.readlines() == ['{\n', '    "value1": 12,\n', '    "value2": 7,\n', '    "value3": 8\n', '}']
+                        self.assertTrue(file.readlines() == ['{\n', '    "value1": 12,\n', '    "value2": 7,\n', '    "value3": 8\n', '}'])
 
                     status, res = self.stats_processor.get_stats()
-                    assert status
-                    assert res == test_data1
+                    self.assertTrue(status)
+                    self.assertTrue(res == test_data1)
 
                     # Test updating of statistics file
                     test_data2 = {"value1": 15, "a": "abs"}
                     self.stats_processor.update_stats(test_data2)
-                    assert os.path.exists(stats_filename)
+                    self.assertTrue(os.path.exists(stats_filename))
                     with open(stats_filename, 'r') as file:
-                        assert file.readlines() == ['{\n', '    "value1": 15,\n', '    "a": "abs"\n', '}']
+                        self.assertTrue(file.readlines() == ['{\n', '    "value1": 15,\n', '    "a": "abs"\n', '}'])
 
                     status, res = self.stats_processor.get_stats()
-                    assert status
-                    assert res == test_data2
+                    self.assertTrue(status)
+                    self.assertTrue(res == test_data2)
 
                     # Test removing of statistics file
                     self.stats_processor.remove_stats_file()
-                    assert not os.path.exists(stats_filename)
+                    self.assertFalse(os.path.exists(stats_filename))
 
                     status, res = self.stats_processor.get_stats()
-                    assert not status
-                    assert res == {}
+                    self.assertFalse(status)
+                    self.assertTrue(res == {})
 
                     # Test attempt to read incorrect statistics file
                     with open(stats_filename, 'w') as file:
                         file.write("{ abc")
                     status, res = self.stats_processor.get_stats()
-                    assert not status
-                    assert res == {}
+                    self.assertFalse(status)
+                    self.assertTrue(res == {})