#test_baidu.py
from selenium import webdriver
from time import sleep
import unittest
class TestBaidu(unittest.TestCase):
    def setUp(self):
        self.driver=webdriver.Firefox()
        self.driver.implicitly_wait(30)
        self.driver.get("https://www.baidu.com/")
    def test_bai(self):
        driver=self.driver
        driver.find_element_by_id("kw").clear()
        driver.find_element_by_id("kw").send_keys("selenium")
        driver.find_element_by_id("su").click()
        sleep(3)
        title=driver.title
        self.assertEqual(title,"selenium_百度搜索")
        driver.find_element_by_partial_link_text("selenium自动化").click()
        sleep(3)
    def tearDown(self):
        self.driver.quit()
if __name__=="__main__":
    unittest.main()

runtest.py
import unittest

test_dir = "./"
deriver = unittest.defaultTestLoader.discover(test_dir,pattern="tset*.py")
if __name__=="__main__":
    runner = unittest.TextTestRunner()
    runner.run(deriver)

测试结果
Ran 0 tests in 0.000s

OK
本以为电脑问题，更换电脑安装软件后相同代码，结果还是这个，不知问题出在哪里，求解决