new_contents: import pytest
  from parameterized import parameterized
  from seleniumbase import BaseCase
  
  
  class SwagLabsTests(BaseCase):
  
      def login(self, user="standard_user"):
          """ Login to Swag Labs and assert that the login was successful. """
          if user not in (["standard_user", "problem_user"]):
              raise Exception("Invalid user!")
          self.open("https://www.saucedemo.com/")
          self.update_text("#user-name", user)
          self.update_text("#password", "secret_sauce")
          self.click('input[type="submit"]')
          self.assert_text("Products", "div.product_label")
          self.assert_element("#inventory_container")
  
      @parameterized.expand([
          ["standard_user"],
          ["problem_user"],
      ])
      @pytest.mark.run(order=1)
      def test_swag_labs_basic_functional_flow(self, user):
          """ This test checks for basic functional flow in the Swag Labs store.
              The test is parameterized, and receives the user to use for login.
          """
          self.login(user)
  
          # Verify that the "Test.allTheThings() T-Shirt" appears on the page
          item_name = "Test.allTheThings() T-Shirt"
          self.assert_text(item_name)
  
          # Verify that a reverse-alphabetical sort works as expected
          self.select_option_by_value("select.product_sort_container", "za")
          if item_name not in self.get_text("div.inventory_item"):
              raise Exception('Sort Failed! Expecting "%s" on top!' % item_name)
  
          # Add the "Test.allTheThings() T-Shirt" to the cart
          self.assert_exact_text("ADD TO CART", "button.btn_inventory")
          item_price = self.get_text("div.inventory_item_price")
          self.click("button.btn_inventory")
          self.assert_exact_text("REMOVE", "button.btn_inventory")
          self.assert_exact_text("1", "span.shopping_cart_badge")
  
          # Verify your cart
          self.click("#shopping_cart_container path")
          self.assert_exact_text("Your Cart", "div.subheader")
          self.assert_text(item_name, "div.inventory_item_name")
          self.assert_exact_text("1", "div.cart_quantity")
          self.assert_exact_text("REMOVE", "button.cart_button")
          self.assert_element("link=CONTINUE SHOPPING")
  
          # Checkout - Add info
          self.click("link=CHECKOUT")
          self.assert_exact_text("Checkout: Your Information", "div.subheader")
          self.assert_element("a.cart_cancel_link")
          self.update_text("#first-name", "SeleniumBase")
          self.update_text("#last-name", "Rocks")
          self.update_text("#postal-code", "01720")
  
          # Checkout - Overview
          self.click('input.btn_primary')
          self.assert_exact_text("Checkout: Overview", "div.subheader")
          self.assert_element("link=CANCEL")
          self.assert_text(item_name, "div.inventory_item_name")
          self.assert_text(item_price, "div.inventory_item_price")
          self.assert_exact_text("1", "div.summary_quantity")
  
          # Finish Checkout and verify item is no longer in cart
          self.click("link=FINISH")
          self.assert_exact_text("THANK YOU FOR YOUR ORDER", "h2")
          self.assert_element("div.pony_express")
          self.click("#shopping_cart_container path")
          self.assert_element_absent("div.inventory_item_name")
          self.click("link=CONTINUE SHOPPING")
          self.assert_element_absent("span.shopping_cart_badge")
  
      @parameterized.expand([
          ["standard_user"],
          ["problem_user"],
      ])
      @pytest.mark.run(order=2)
      def test_swag_labs_products_page_resource_verification(self, user):
          """ This test checks for 404 errors on the Swag Labs products page.
              The test is parameterized, and receives the user to use for login.
          """
          self.login(user)
          self.assert_no_404_errors()
  
subject: Add Swag Labs test suite