fix: add data extraction and decoding

Author: romanzac

src/steps/da.py

@@ -26,8 +26,16 @@ def disperse_data(self, data, app_id, index):
 
     @allure.step
     def get_data_range(self, app_id, start, end):
+        response = []
         query = prepare_get_range_request(app_id, start, end)
         try:
-            self.node2.send_get_data_range_request(query)
+            response = self.node2.send_get_data_range_request(query)
         except Exception as ex:
             assert "Bad Request" in str(ex) or "Internal Server Error" in str(ex)
+
+        # Extract data for each index in received order
+        extracted_data = []
+        for item in response:
+            extracted_data.append(item[1])
+
+        return extracted_data

tests/data_integrity/test_data_integrity.py

@@ -15,4 +15,4 @@ def test_da_identify_retrieve_missing_columns(self):
     def test_da_sampling_determines_data_presence(self):
         self.disperse_data(DATA_TO_DISPERSE[0], [0] * 31 + [1], [0] * 8)
         received_data = self.get_data_range([0] * 31 + [1], [0] * 8, [0] * 7 + [5])
-        assert DATA_TO_DISPERSE[0] == received_data
+        assert DATA_TO_DISPERSE[0] == received_data[0].decode("utf-8")