Update the code to utilize the instantiated fixture objects, for consistency

Author: soncuteanca

l10n_CM/Unified/test_demo_ad_yellow_highlight_phone_email.py

@@ -11,30 +11,31 @@ def test_case():
     return "2888570"
 
 
-def test_address_yellow_highlight_address_fields(driver: Firefox, region: str):
+def test_address_yellow_highlight_address_fields(
+    driver: Firefox,
+    region: str,
+    address_autofill: AddressFill,
+    util: Utilities,
+    autofill_popup: AutofillPopup,
+):
     """
     C2888570 - Verify the yellow highlight appears on autofilled fields for the email and phone fields.
     """
 
-    # Instantiate objects
-    address_autofill = AddressFill(driver)
-    address_autofill_popup = AutofillPopup(driver)
-    util = Utilities()
-
     # Create fake data and fill it in
     address_autofill.open()
     address_autofill_data = util.fake_autofill_data(region)
     address_autofill.save_information_basic(address_autofill_data)
 
     # Click the "Save" button
-    address_autofill_popup.click_doorhanger_button("save")
+    autofill_popup.click_doorhanger_button("save")
 
     # Double click inside email field and select a saved address entry from the dropdown
     address_autofill.double_click("form-field", labels=["email"])
 
     # Click on the first element from the autocomplete dropdown
-    first_item = address_autofill_popup.get_nth_element(1)
-    address_autofill_popup.click_on(first_item)
+    first_item = autofill_popup.get_nth_element(1)
+    autofill_popup.click_on(first_item)
 
     # Verify the email and phone fields are highlighted
     address_autofill.verify_field_yellow_highlights(