Selenium2+python自动化67-用例失败自动截图

class decoratorWithoutArguments(object):

    def __init__(self, f):
        """
        If there are no decorator arguments, the function
        to be decorated is passed to the constructor.
        """
        print "Inside __init__()"
        self.f = f

    def __call__(self, *args):
        """
        The __call__ method is not called until the
        decorated function is called.
        """
        print "Inside __call__()"
        self.f(*args)
        print "After self.f(*args)"

@decoratorWithoutArguments
def sayHello(a1, a2, a3, a4):
    print ‘sayHello arguments:‘, a1, a2, a3, a4

class decoratorWithArguments(object):

    def __init__(self, arg1, arg2, arg3):
        """
        If there are decorator arguments, the function
        to be decorated is not passed to the constructor!
        """
        print "Inside __init__()"
        self.arg1 = arg1
        self.arg2 = arg2
        self.arg3 = arg3

    def __call__(self, f):
        """
        If there are decorator arguments, __call__() is only called
        once, as part of the decoration process! You can only give
        it a single argument, which is the function object.
        """
        print "Inside __call__()"
        def wrapped_f(*args):
            print "Inside wrapped_f()"
            print "Decorator arguments:", self.arg1, self.arg2, self.arg3
            f(*args)
            print "After f(*args)"
        return wrapped_f

@decoratorWithArguments("hello", "world", 42)
def sayHello(a1, a2, a3, a4):
    print ‘sayHello arguments:‘, a1, a2, a3, a4

# coding:utf-8
from selenium import webdriver

class Screen(object):
    u‘‘‘这个应该截图功能的装饰器‘‘‘
    def __init__(self, driver):
        self.driver = driver

    def __call__(self, f):
        def inner(*args):
            try:
                return f(*args)
            except:
                import time
                nowTime = time.strftime("%Y_%m_%d_%H_%M_%S")
                self.driver.get_screenshot_as_file(‘%s.jpg‘ % nowTime)
                raise
        return inner


# 以下是装饰器与unittest结合的案例
import unittest
class Test(unittest.TestCase):

    driver = webdriver.Firefox()  # 全局参数driver

    def setUp(self):
        self.driver.get("https://www.baidu.com")

    @Screen(driver)
    def test01(self):
        u‘‘‘这个是失败的案例‘‘‘
        self.driver.find_element_by_id("11kw").send_keys("python")
        self.driver.find_element_by_id("su").click()

    @Screen(driver)
    def test_02(self):
        u‘‘‘这个是通过的案例‘‘‘
        self.driver.find_element_by_id("kw").send_keys("yoyo")
        self.driver.find_element_by_id("su").click()

    def tearDown(self):
        self.driver.quit()

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