test_retreiver.py 文件源码

def setUp(self):
        try:
            os.remove(self._testMethodName + ".db")
        except OSError as e:
            pass
        self.database    = Database(self._testMethodName + ".db")
        self.testDatabase  =TestDatabase(self._testMethodName + ".db") 
        self.retriever = Retriever(self.database)