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Test cases for L{twisted.names.srvconnect}.
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Resolver that only gives out one given result.
Either L{results} or L{failure} must be set and will be used for
the return value of L{_lookup}
@ivar results: List of L{dns.RRHeader} for the desired result.
@type results: C{list}
@ivar failure: Failure with an exception from L{twisted.names.error}.
@type failure: L{Failure<twisted.python.failure.Failure>}
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Return the result or failure on lookup.
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Dummy client factory that stores the reason of connection failure.
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Tests for L{srvconnect.SRVConnector}.
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Fake randint.
Returns the first element of L{randIntResults} and records the
arguments passed to it in L{randIntArgs}.
@param min: Lower bound of the random number.
@type min: L{int}
@param max: Higher bound of the random number.
@type max: L{int}
@return: Fake random number from L{randIntResults}.
@rtype: L{int}
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L{srvconnect.SRVConnector} implements L{IConnector}.
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Test connectTCP gets called with the address from the SRV record.
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Test connectTCP gets called with fallback parameters on NXDOMAIN.
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Test connectTCP gets called with fallback parameters on empty result.
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connectTCP gets called with default port if the service is not defined.
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Connect fails on no result, unknown service and no default port.
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Test connectTCP gets called with fallback parameters on bad result.
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Test that connecting fails when no service is present.
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The lookup name is a native string from service, protocol and domain.
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z$SRVConnectorTests.test_SRVLookupNamec C s* t �| jdd| j�| _| �d| jj� dS )zq
L{srvconnect.SRVConnector} automatically encodes unicode domain using
C{idna} encoding.
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pickServer calculates running sum of weights and calls randint.
This exercises the server selection algorithm specified in RFC 2782 by
preparing fake L{random.randint} results and checking the values it was
called with.
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Two records with equal priorities compare on weight (ascending).
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Two records with differing priorities compare on priority (ascending).
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