ajout imports manquants

test_saucedemo.py

@@ -3,6 +3,10 @@ import pytest
 from selenium import webdriver
 from selenium.webdriver.common.by import By
 from selenium.webdriver.firefox.options import Options
+import time
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
+from selenium.common.exceptions import TimeoutException
 
 debug = True