selenium2學習:單元測試框架(2)
阿新 • • 發佈:2018-05-18
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1.4 Discover更多測試用例
discover(start_dir,pattern=‘test*.py‘,top_level_dir=None)
找到指定目錄下所有測試模塊,並可遞歸查到子目錄下的測試木塊,只有匹配到的文件名才會被加載。如果啟動的不是頂層目錄,那麽頂層目錄必然單獨指定。
l start_dir:要測試的模塊名或測試用例的目錄。
l pattent=‘test*.py’:表示用例文件名的匹配原則。此處匹配文件名一test開頭的所有.py類型文件,*表示任意多個字符。
l top_level_dir=None :測試模塊的頂層目錄,如果沒有頂層目錄,默認為None。
被調用的calculator.py
#0517006:calculator:add test # 計算器類 class count: def __init__(self,a,b): self.a = int(a) self.b = int(b) def add(self): return self.a + self.b def sub(self): return self.a - self.b
測試用例:add
#0517008:suite:add from calculator importcount import unittest class testadd(unittest.TestCase): def setUp(self): print(‘Test add Start‘) def tearDown(self): print(‘Test add Over‘) def test_add1(self): j = count(2,3) self.assertEqual(j.add(),5,msg= ‘錯了1‘) def test_add2(self): j= count(3,3) self.assertEqual(j.add(),5,msg= ‘錯了2‘) if __name__ == ‘__main__‘: unittest.main()
測試用例:sub
#0517009:suite:sub from calculator import count import unittest class testsub(unittest.TestCase): def setUp(self): print(‘Test sub Start‘) def tearDown(self): print(‘Test sub Over‘) def test_sub1(self): j = count(2,3) self.assertEqual(j.sub(),-1,msg= ‘錯了1‘) def test_sub2(self): j = count(3,3) self.assertEqual(j.sub(),5,msg= ‘錯了2‘) if __name__ == ‘__main__‘: unittest.main()
執行用例:runtest
import unittest #定義測試用例的目錄為當前目錄 test_dir = ‘./‘ discover = unittest.defaultTestLoader.discover(test_dir, pattern=‘test*.py‘) if __name__ == ‘__main__‘: runner = unittest.TextTestRunner() runner.run(discover)
執行結果:
>>> RESTART: C:/Users/tians/AppData/Local/Programs/Python/Python36/example-JLL/modules/002-calculator/runtest.py Test add Start Test add Over .Test add Start Test add Over FTest sub Start Test sub Over .Test sub Start Test sub Over F ====================================================================== FAIL: test_add2 (test_add.testadd) ---------------------------------------------------------------------- Traceback (most recent call last): File "C:\Users\tians\AppData\Local\Programs\Python\Python36\example-JLL\modules\002-calculator\test_add.py", line 19, in test_add2 self.assertEqual(j.add(),5,msg= ‘錯了2‘) AssertionError: 6 != 5 : 錯了2 ====================================================================== FAIL: test_sub2 (test_sub.testsub) ---------------------------------------------------------------------- Traceback (most recent call last): File "C:\Users\tians\AppData\Local\Programs\Python\Python36\example-JLL\modules\002-calculator\test_sub.py", line 19, in test_sub2 self.assertEqual(j.sub(),5,msg= ‘錯了2‘) AssertionError: 0 != 5 : 錯了2 ---------------------------------------------------------------------- Ran 4 tests in 0.078s FAILED (failures=2) >>>
註:unittest框架默認根據ASCII碼的順序加載測試用例,數字與字母的順序為:0~9,A~Z,a~z。如果想讓某個特定的用例優先執行,要麽將該用例的命名靠前,要麽使用TestSuite類的addTest()方法按照一定的順序加載。
selenium2學習:單元測試框架(2)