diff --git a/.vscode/settings.json b/.vscode/settings.json
index e48632d..3c0a58b 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,5 +2,6 @@
     "python.pythonPath": "bin/python3",
     "python.envFile": "${workspaceFolder}/.env",
     "python.linting.pylintEnabled": true,
-    "python.linting.enabled": true
+    "python.linting.enabled": true,
+    "python.autoComplete.addBrackets": true
 }
\ No newline at end of file
diff --git a/scrape.py b/scrape.py
index 574b20e..a41dad7 100644
--- a/scrape.py
+++ b/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__':
diff --git a/test_scrape.py b/test_scrape.py
new file mode 100644
index 0000000..af183b9
--- /dev/null
+++ b/test_scrape.py
@@ -0,0 +1,37 @@
+from unittest.mock import Mock, patch
+import pytest
+import scrape
+import logging
+
+
+@pytest.fixture(scope="module")
+def log():
+    log = scrape.get_logger(logging.DEBUG)
+    yield log
+
+
+@patch('scrape.does_file_exist')
+def test_already_run(mock_does_file_exist, log):
+    mock_does_file_exist.return_value = True
+    assert scrape.does_file_exist(scrape.config['message_sent_file'])
+    with pytest.raises(StopIteration):
+        scrape.main(scrape.config, log)
+
+
+@pytest.mark.parametrize("json, expected",
+                         [({"Y1357": [{"edp": "40263442", "stockStatus": "OutOfStock"}]}, False),
+                          ({"Y1357": [{"edp": "40263442", "stockStatus": "LowStock"}]}, True)])
+@patch('scrape.does_file_exist')
+@patch('scrape.requests.get')
+@patch('scrape.create_file')
+@patch('scrape.send_sms')
+def test_full_process(mock_send_sms, mock_create_file, mock_request_get, mock_does_file_exist, json, expected, log):
+    mock_does_file_exist.return_value = False
+    mock_response = Mock(**{'json.return_value': json})
+    mock_request_get.return_value = mock_response
+
+    assert scrape.main(scrape.config, log) == expected
+    if expected:
+        mock_send_sms.assert_called_once_with(scrape.config['msg_to'],
+                                              'The coat is in stock at ' + scrape.config['website_url'])
+        mock_create_file.assert_called_once()