Coverage for src/lib/python/isc/testutils/tsigctx_mock : 95%

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from pydnspp import * 

class MockTSIGContext(TSIGContext): 

    """Tthis is a mock of TSIGContext class for testing. 

    Via its "error" attribute, you can fake the result of verify(), thereby 

    you can test many of TSIG related tests without requiring actual crypto 

    setups.  "error" should be either a TSIGError type value or a callable 

    object (typically a function).  In the latter case, the callable object 

    will take the context as a parameter, and is expected to return a 

    TSIGError object. 

    """ 

    def __init__(self, tsig_key): 

        super().__init__(tsig_key) 

        self.error = None 

        self.verify_called = 0  # number of verify() called 

    def sign(self, qid, data): 

        """Transparently delegate the processing to the super class. 

        It doesn't matter much anyway because normal applications that would 

        be implemented in Python normally won't call TSIGContext.sign() 

        directly. 

        """ 

        return super().sign(qid, data) 

    def verify(self, tsig_record, data): 

        self.verify_called += 1 

        # call real "verify" so that we can notice any misue (which would 

        # result in exception. 

        super().verify(tsig_record, data) 

        return self.get_error() 

    def get_error(self): 

        if self.error is None: 

            return super().get_error() 

        if hasattr(self.error, '__call__'): 

            return self.error(self) 

        return self.error