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o �b�$ � @ s� d Z ddlZddlmZ ddlmZmZ ddlmZm Z ddl m Z ddl m Z mZmZ ddlmZ dd lmZ dd lmZ dd lmZ G d d � d e�ZG dd� dej�ZG dd� dej�Z dS )z- Test cases for L{twisted.names.srvconnect}. � N)� verifyObject)�defer�protocol)�DNSLookupError�ServiceNameUnknownError)� IConnector)�client�dns� srvconnect)� ResolverBase)� DNSNameError)� MemoryReactor)�unittestc @ s" e Zd ZdZddd�Zdd� ZdS )� FakeResolvera� 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>} Nc C s || _ || _g | _d S �N)�results�failure�lookups)�selfr r � r �D/usr/lib/python3/dist-packages/twisted/names/test/test_srvconnect.py�__init__$ s zFakeResolver.__init__c C s< | j �||||f� | jdurt�| jg g f�S t�| j�S )z9 Return the result or failure on lookup. N)r �appendr r �succeed�failr )r �name�cls�qtype�timeoutr r r �_lookup) s zFakeResolver._lookup)NN)�__name__� __module__� __qualname__�__doc__r r r r r r r s r c @ s e Zd ZdZdd� Zdd� ZdS )� DummyFactoryzL Dummy client factory that stores the reason of connection failure. c C s d | _ d S r ��reason�r r r r r 9 � zDummyFactory.__init__c C s || _ d S r r% )r � connectorr& r r r �clientConnectionFailed< r( z#DummyFactory.clientConnectionFailedN)r r! r" r# r r* r r r r r$ 4 s r$ c @ s� e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zdd� Zd d � Zd d � Zd S )!�SRVConnectorTestsz/ Tests for L{srvconnect.SRVConnector}. c C sF | � tdt� � t� | _t� | _t�| jdd| j�| _ g | _ g | _ d S )N� theResolver� xmpp-server� example.org) �patchr r r �reactorr$ �factoryr � SRVConnectorr) � randIntArgs�randIntResultsr' r r r �setUpE s � zSRVConnectorTests.setUpc C s | j �||f� | j�d�S )a� 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} r )r3 r r4 �pop)r �min�maxr r r �_randintO s zSRVConnectorTests._randintc C s t t| j� dS )zF L{srvconnect.SRVConnector} implements L{IConnector}. N)r r r) r' r r r �test_interfaceb s z SRVConnectorTests.test_interfacec C sf t jdddd�}t jdt jt jd|d�gtj_| j� � | � | j j � | � | jj�� dd� d � dS ) zS Test connectTCP gets called with the address from the SRV record. �} �host.example.org�< ��port�target�ttlr. �r �typer rA �payloadN� )r< r; )r � Record_SRV�RRHeader�SRV�INr r, r r) �connect� assertIsNoner1 r& � assertEqualr0 � tcpClientsr6 �r rD r r r �test_SRVPresenth s �� z!SRVConnectorTests.test_SRVPresentc C sD t d�tj_| j�� | �| jj� | � | j j � � dd� d� dS )zS Test connectTCP gets called with fallback parameters on NXDOMAIN. s example.orgNrE �r. r- ) r r r, r r) rJ rK r1 r& rL r0 rM r6 r' r r r �test_SRVNotPresentw s �z$SRVConnectorTests.test_SRVNotPresentc C s@ g t j_| j�� | �| jj� | �| j j � � dd� d� dS )zW Test connectTCP gets called with fallback parameters on empty result. NrE rP ) r r, r r) rJ rK r1 r& rL r0 rM r6 r' r r r �test_SRVNoResult� s �z"SRVConnectorTests.test_SRVNoResultc C s\ t j| jdd| jdd�| _t� tj_| j� � | � | jj � | � | jj �� dd� d� dS )zY connectTCP gets called with default port if the service is not defined. �thisbetternotexistr. �f )� defaultPortNrE )r. rT )r r2 r0 r1 r) r r r, r rJ rK r& rL rM r6 r' r r r �)test_SRVNoResultUnknownServiceDefaultPort� s � z;SRVConnectorTests.test_SRVNoResultUnknownServiceDefaultPortc C sB t �| jdd| j�| _t� tj_| j� � | � | jj � t�� dS )zR Connect fails on no result, unknown service and no default port. rS r. N) r r2 r0 r1 r) r r r, r rJ � assertTruer& �checkr' r r r �+test_SRVNoResultUnknownServiceNoDefaultPort� s � z=SRVConnectorTests.test_SRVNoResultUnknownServiceNoDefaultPortc C sV t jdt jt jddd�gtj_| j�� | � | j j � | � | j j�� dd� d� dS )zU Test connectTCP gets called with fallback parameters on bad result. r. r= NrB rE rP )r rG �CNAMErI r r, r r) rJ rK r1 r& rL r0 rM r6 r' r r r �test_SRVBadResult� s �� �z#SRVConnectorTests.test_SRVBadResultc C sh t jdddd�}t jdt jt jd|d�gtj_| j� � | � | j j � | j j � t� | �| jjg � dS )zH Test that connecting fails when no service is present. i� � .r= r> r. rB N)r rF rG rH rI r r, r r) rJ �assertIsNotNoner1 r& �trapr rL r0 rM rN r r r �test_SRVNoService� s �� z#SRVConnectorTests.test_SRVNoServicec C s2 g t j_| j�� t jjd d }| �d|� dS )zW The lookup name is a native string from service, protocol and domain. ���r s _xmpp-server._tcp.example.orgN)r r, r r) rJ r rL )r r r r r �test_SRVLookupName� s z$SRVConnectorTests.test_SRVLookupNamec C s* t �| jdd| j�| _| �d| jj� dS )zq L{srvconnect.SRVConnector} automatically encodes unicode domain using C{idna} encoding. z xmpp-clientu échec.example.orgs xn--chec-9oa.example.orgN)r r2 r0 r1 r) rL �domainr' r r r �test_unicodeDomain� s �z$SRVConnectorTests.test_unicodeDomainc C s� t �dddd�}t �dddd�}||g| j_g | j_| �td| j� ddg| _| j� � | � | j d d � | j� � | � | j d d � ddg| _| j� � | � | j d d � | j� � | � | j d d� dS )a pickServer calculates running sum of weights and calls randint. This exercises the server selection algorithm specified in RFC 2782 by preparing fake L{random.randint} results and checking the values it was called with. � rT �host1.example.org� �host2.example.org�randint� r )r � � )r rd rE � )r rf N) r rF r) �orderedServers�serversr/ �randomr9 r4 � pickServerrL r3 �r �record1�record2r r r �test_pickServerWeights� s z(SRVConnectorTests.test_pickServerWeightsc C sv t �dddd�}t �dddd�}||g| j_g | j_| �td| j� ddg| _| � d| j� � � | � d | j� � � d S ) zR Two records with equal priorities compare on weight (ascending). rd rT re rf rg rh r �re rT �rg rT N� r rF r) rm rn r/ ro r9 r4 rL rp rq r r r � test_pickServerSamePriorities � z/SRVConnectorTests.test_pickServerSamePrioritiesc C sv t �dddd�}t �dddd�}||g| j_g | j_| �td| j� ddg| _| � d| j� � � | � d | j� � � d S ) zX Two records with differing priorities compare on priority (ascending). rd r rT re rf rg rh ru rv Nrw rq r r r �test_srvDifferentPriorities ry z-SRVConnectorTests.test_srvDifferentPrioritiesN)r r! r" r# r5 r9 r: rO rQ rR rV rY r[ r_ ra rc rt rx rz r r r r r+ @ s" ! r+ ) r# ro �zope.interface.verifyr �twisted.internetr r �twisted.internet.errorr r �twisted.internet.interfacesr � twisted.namesr r r �twisted.names.commonr �twisted.names.errorr �twisted.test.proto_helpersr � twisted.trialr r � ClientFactoryr$ �TestCaser+ r r r r �<module> s
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