Ctypes Wrapper和单元测试

Question

我希望包装一个C库以便在python中使用。我也希望使用测试驱动开发来实现我的课程。这是我到目前为止编写的两个类及其界面。我需要包装一大堆这样的类。

class FunctionWrapperForOurLibrary:
    def __init__():
        pass

    def __call__():
        pass

class OurOpener(FunctionWrapperForOurLibrary):
    def __init__(self, our_library):
        self.our_library = our_library
        our_library.OurOpen.argtypes = [c_char_p, c_char_p]
        our_library.OurOpen.restype = OUR_ERROR

    def __call__(self, admin_path, company_path):
        status = self.our_library.OurOpen(admin_path, company_path)
        if status.lRc:
            raise Exception("Unable to connect to database due to this error: "+str(status.lRc))

class OurDataCreator(FunctionWrapperForOurLibrary):
    def __init__(self, our):
        self.our_library = our_library
        our_library.OurCreateData.argtypes = [c_int]
        our_library.OurCreateData.restype = POINTER(OUR_DATA)

    def __call__(self, our_structure_type):
        data = self.our_library.OurCreateData(our_structure_type)
        return data

第一个问题，我是否通过包含接口类来提高可读性？我意识到它不需要。我的对象和类名怎么样？关于如何让这些更清楚的任何建议？

其次，我怎么写一个包含这些仿函数的类？一个可以单元测试的类？

我能想到的最好的东西是这样的：

class Our:
    def __init__(self, our_open, our_data_create, ...):
        self.opener = our_open
        self.data_create = our_data_create

our_open = OurOpener(our_library)
our_data_create = OurDataCreator(our_library)
our = Our(our_open, our_data_create)

但是我会将大量的仿函数传递给类构造函数。

更好的做到这一点？

更新

class Our:
    def __init__(self, our_library):
        self.our_library = our_library
        our_library.OurOpen.argtypes = [c_char_p, c_char_p]
        our_library.OurOpen.restype = OUR_ERROR
        our_library.OurCreateData.argtypes = [c_int]
        our_library.OurCreateData.restype = POINTER(OUR_DATA)

    def open(self, admin_path, company_path):
        status = self.our_library.OurOpen(admin_path, company_path)
        if status.lRc:
            raise Exception("Unable to connect to database due to this error: "+str(status.lRc))

    def create_data(self, our_structure_type):
        return self.our_library.OurCreateData(our_structure_type)