selenium-數(shù)據(jù)驅(qū)動應(yīng)用（parameterized、DDT）

selenium-數(shù)據(jù)驅(qū)動應(yīng)?（parameterized、DDT）1.parameterizedparameterized是python的?個參數(shù)化庫，同時?持unittest、nose、pytest單元測試框架importunittestimporttimefromseleniumimportwebdriverfromparameterizedimportparameterizedclassTestBaidu(unittest.TestCase):#參數(shù)化后，要將setup和teardown修改為類?法，不然每個參數(shù)被認為?個測試?例，瀏覽器會隨之每次都打開關(guān)閉@classmethoddefsetUpClass(cls):cls.driver=webdriver.Chrome()cls.base_url=''defbaidu_search(self,search_key):self.driver.get(self.base_url)self.driver.find_element_by_id('kw').send_keys(search_key)self.driver.find_element_by_id('su').click()time.sleep(3)#通過parameterized實現(xiàn)參數(shù)化@parameterized.expand([#每個元組都被認為是?條測試?例。測試?例中，通過參數(shù)來取每個元組中的數(shù)據(jù)('case1','selenium'),('case2','unittest'),('case3','parameterized'),])deftest_search(self,name,search_key):#name對應(yīng)元組中的第?列數(shù)據(jù)，search_key對應(yīng)第?列self.baidu_search(search_key)self.assertEqual(self.driver.title,search_key+'_百度搜索')@classmethoddeftearDownClass(cls):cls.driver.quit()if__name__=='__main__':unittest.main(verbosity=2)#verbosity設(shè)置為2，表?輸出更詳細的?志運?結(jié)果如下：test_search_0_case1(__main__.TestBaidu)...oktest_search_1_case2(__main__.TestBaidu)...oktest_search_2_case3(__main__.TestBaidu)...ok----------------------------------------------------------------------Ran3testsin15.239sOKtest_search是測試?例的名稱，參數(shù)化會?動加上0、1、2?來區(qū)分每條測試?例，元組中的case1后綴在名稱上2.DDTDDT（data-driventests）是針對unittest單元測試框架設(shè)計的擴展庫。允許使?不同的測試數(shù)據(jù)來運??個測試?例，并將其展?為多個測試?例。fromseleniumimportwebdriverimportunittestimporttimefromddtimportddt,data,file_data,unpack@ddt#測試類需要通過@ddt裝飾器進?裝飾classTestBaidu(unittest.TestCase):@classmethoddefsetUpClass(cls):cls.driver=webdriver.Chrome()defsearch_baidu(self,keyword):self.driver.get('')self.driver.find_element_by_id('kw').send_keys(keyword)self.driver.find_element_by_id('su').click()time.sleep(3)#ddt提供了不同形式的參數(shù)化@data(['case1','selenium'],['case2','python'])#列表@unpackdeftest_baidu1(self,name,keyword):print('第?組測試?例',name)self.search_baidu(keyword)self.assertEqual(self.driver.title,keyword+'_百度搜索')@data(('case1','selenium'),('case2','pyton'))#元組@unpackdeftest_baidu2(self,name,keyword):print('第?組測試?例',name)self.search_baidu(keyword)self.assertEqual(self.driver.title,keyword+'_百度搜索')@data({'keyword':'selenium'},{'keyword':'python'})#字典@unpackdeftest_baidu3(self,keyword):print('第三組測試?例',keyword)self.search_baidu(keyword)self.assertEqual(self.driver.title,keyword+'_百度搜索')@classmethoddeftearDownClass(cls):cls.driver.quit()if__name__=='__main__':unittest.main(verbosity=2)DDT同樣?持json?件的讀取，讓我們更關(guān)注于數(shù)據(jù)?件的內(nèi)容，及在測試?例中的使?。?不需要關(guān)?數(shù)據(jù)?件是如何被讀取進來的keyword.json使?json?件參數(shù)化測試?例@file_data('./data/keyword.json')#讀取json?件deftest_baidu(self,keyword):self.search_baidu(keyword)self.assertEqual(self.driver.title,keyword+'_百度搜索')測試結(jié)果如下：test_baidu_00001_case1(__main__.TestBaidu)test_baidu_00001_case1...oktest_baidu_00002_case2(__main__.TestBaidu)test_baidu_00002_case2...oktest_baidu_00003_case3(__main__.TestBaidu)test_baidu_00003_case3...FAILps:參數(shù)化中使?全局變量需注意，如果全局變量的賦值和使?在同?個?件中，則不能使?原因：代碼執(zhí)?順序執(zhí)?時，先?parameterized中的代碼，后?業(yè)務(wù)代碼，所以全局變量的值在賦值之前已經(jīng)獲取，為空，會報錯，如下123為執(zhí)?順序：classTest_0001(TestBase):deftest_1(self):phone=123set_assistant_phone_id(phone)#2classTest_0011(TestBase):@parameterized.expand([('隨機?機號',get_assistant_phone_id())#1先執(zhí)?。還未賦值，所以獲取不到數(shù)據(jù)])deftest