Web自动化测试流程：从入门到精通，帮你成为测试专家网站首页 学无止境

from selenium import webdriver

# 创建浏览器对象
driver = webdriver.Chrome()

# 打开网页
driver.get("https://www.example.com/login")

# 输入用户名
username_input = driver.find_element_by_id("username")
username_input.send_keys("myusername")

# 输入密码
password_input = driver.find_element_by_id("password")
password_input.send_keys("mypassword")

# 提交表单
submit_button = driver.find_element_by_id("submit")
submit_button.click()

# 检查页面中是否存在欢迎信息
welcome_message = driver.find_element_by_xpath("//h1[contains(text(), 'Welcome')]")
assert welcome_message.text == "Welcome, myusername!"

# 关闭浏览器
driver.quit()

步骤三：编写测试框架

在编写测试用例之前，需要先编写测试框架。测试框架是一个包含多个测试用例的集合，它们可以一起运行。下面是一个使用Python编写的示例测试框架：

import unittest
from selenium import webdriver

class LoginPageTests(unittest.TestCase):
    def setUp(self):
        # 创建浏览器对象
        self.driver = webdriver.Chrome()

        # 打开网页
        self.driver.get("https://www.example.com/login")

    def tearDown(self):
        # 关闭浏览器
        self.driver.quit()

    def test_login_success(self):
        # 输入用户名
        username_input = self.driver.find_element_by_id("username")
        username_input.send_keys("myusername")

        # 输入密码
        password_input = self.driver.find_element_by_id("password")
        password_input.send_keys("mypassword")

        # 提交表单
        submit_button = self.driver.find_element_by_id("submit")
        submit_button.click()

        # 检查页面中是否存在欢迎信息
        welcome_message = self.driver.find_element_by_xpath("//h1[contains(text(), 'Welcome')]")
        self.assertEqual(welcome_message.text, "Welcome, myusername!")

    def test_login_failure(self):
        # 输入错误的用户名
        username_input = self.driver.find_element_by_id("username")
        username_input.send_keys("wrongusername")

        # 输入错误的密码
        password_input = self.driver.find_element_by_id("password")
        password_input.send_keys("wrongpassword")

        # 提交表单
        submit_button = self.driver.find_element_by_id("submit")
        submit_button.click()

        # 检查错误提示信息是否正确
        error_message = self.driver.find_element_by_xpath("//div[contains(text(), 'Incorrect username or password.')]")
        self.assertTrue(error_message.is_displayed())

if __name__ == '__main__':
    unittest.main()