python-tdd/src/functional_tests/test_list_item_validation.py

from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys

from .base import FunctionalTest

class ItemValidationTest(FunctionalTest):
    def test_cannot_add_empty_list_items(self):
        self.browser.get(self.live_server_url)
        self.get_item_input_box().send_keys(Keys.ENTER)

        self.wait_for(
            lambda: self.browser.find_element(By.CSS_SELECTOR, "#id_text:invalid")
        )

        self.get_item_input_box().send_keys("Purchase milk")
        self.wait_for(
            lambda: self.browser.find_element(By.CSS_SELECTOR, "#id_text:valid")
        )

        self.get_item_input_box().send_keys(Keys.ENTER)
        self.wait_for_row_in_list_table("1. Purchase milk")

        self.get_item_input_box().send_keys(Keys.ENTER)

        self.wait_for_row_in_list_table("1. Purchase milk")
        self.wait_for(
            lambda: self.browser.find_element(By.CSS_SELECTOR, "#id_text:invalid")
        )

        self.get_item_input_box().send_keys("Make tea")
        self.wait_for(
            lambda: self.browser.find_element(
                By.CSS_SELECTOR,
                "#id_text:valid",
            )
        )
        self.get_item_input_box().send_keys(Keys.ENTER)
        self.wait_for_row_in_list_table("2. Make tea")