Added tests

scrape.py

@@ -73,7 +73,7 @@ def main(config, log):
     if does_file_exist(config['message_sent_file']):
         log.info(
             f'Already had positive result, remove {config["message_sent_file"]} to allow script to run again')
-        return
+        raise StopIteration('Already run once')
 
     json = get_json_from_url(config['api_url'])
 
@@ -81,6 +81,7 @@ def main(config, log):
         if id['edp'] == config['item_id']:
             if id['stockStatus'] == 'OutOfStock':
                 log.info("Item is out of stock")
+                return False
             else:
                 log.info("Item is in stock")
                 send_sms(
@@ -88,6 +89,7 @@ def main(config, log):
 
                 # Prevents it being run again
                 create_file(config['message_sent_file'])
+                return True
 
 
 if __name__ == '__main__':