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Tests for implementations of L{IReactorTCP}.
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Poor excuse for an event notification helper. This polls a condition and
calls back a Deferred when it is seen to be true.
Do not use this function.
r )�taskc s �� } | r � � | � d S d S �N��callback��res)�d� predicate� �7/usr/lib/python3/dist-packages/twisted/test/test_tcp.py�check* s �zloopUntil.<locals>.checkc s � � � | S r )�stop)�result)�callr r! r# 1 s zloopUntil.<locals>.stop) �twisted.internetr r �Deferred� LoopingCall� addCallback�start�
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r/ c @ � e Zd Zdd� Zdd� ZdS )�ClosingProtocolc C s t d� | j�� d S )N� ClosingProtocol.connectionMade�r � transport�loseConnection��selfr r r! �connectionMade< s r2 c C s t d� |�tj� d S )N� ClosingProtocol.connectionLost)r �trapr �ConnectionDone�r7 �reasonr r r! �connectionLost@ � r9 N��__name__�
__module__� __qualname__r8 r> r r r r! r1 ; � r1 c @ s$ e Zd ZdZdZdd� Zdd� ZdS )�ClosingFactoryz/
Factory that closes port immediately.
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Clean-up for tests to wait for the port to stop listening.
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Mixin for factories which create L{AccumulatingProtocol} instances.
@type protocolFactory: no-argument callable
@ivar protocolFactory: Factory for protocols - takes the place of the
typical C{protocol} attribute of factories (but that name is used by
this class for something else).
@type protocolConnectionMade: L{None} or L{defer.Deferred}
@ivar protocolConnectionMade: When an instance of L{AccumulatingProtocol}
is connected, if this is not L{None}, the L{Deferred} will be called
back with the protocol instance and the attribute set to L{None}.
@type protocolConnectionLost: L{None} or L{defer.Deferred}
@ivar protocolConnectionLost: When an instance of L{AccumulatingProtocol}
is created, this will be set as its C{closedDeferred} attribute and
then this attribute will be set to L{None} so the L{defer.Deferred} is
not used by more than one protocol.
@ivar protocol: The most recently created L{AccumulatingProtocol} instance
which was returned from C{buildProtocol}.
@type called: C{int}
@ivar called: A counter which is incremented each time C{buildProtocol}
is called.
@ivar peerAddresses: A C{list} of the addresses passed to C{buildProtocol}.
Nr r c C s
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peerAddressesr6 r r r! �__init__~ �
z MyProtocolFactoryMixin.__init__c C s@ | j �|� | jd7 _| �� }| |_| j|_d| _|| _|S )zi
Create a L{AccumulatingProtocol} and set it up to be able to perform
callbacks.
� N)rN �append�called�protocolFactory�factory�protocolConnectionLost�closedDeferredr �r7 �addr�pr r r! rJ � s z$MyProtocolFactoryMixin.buildProtocol)rA rB rC rL r rT �protocolConnectionMaderV r r r r �__annotations__rS rO rJ r r r r! rM Y s
rM c @ s e Zd ZdZdS )�MyServerFactoryzI
Server factory which creates L{AccumulatingProtocol} instances.
N)rA rB rC rL r r r r! r] � s r] c @ s8 e Zd ZdZdZdZdd� Zdd� Zdd� Zd d
� Z d S ) �MyClientFactoryzI
Client factory which creates L{AccumulatingProtocol} instances.
r c C s" t �| � t�� | _t�� | _d S r )rM rO r r' �deferred� failDeferredr6 r r r! rO � s
zMyClientFactory.__init__c C s d| _ || _| j�d � d S �NrQ )�failedr= r` r �r7 � connectorr= r r r! �clientConnectionFailed� s z&MyClientFactory.clientConnectionFailedc C s || _ | j�d � d S r )�
lostReasonr_ r rc r r r! �clientConnectionLost� � z$MyClientFactory.clientConnectionLostc C s
d| _ d S ra ��stoppedr6 r r r! � stopFactory� rP zMyClientFactory.stopFactoryN)
rA rB rC rL rb rj rO re rg rk r r r r! r^ � s r^ c @ s\ e Zd Zdd� Zdd� Zdd� Zdd� Zd d
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dd� Z dd� Z dS )�ListeningTestsc C s8 t � }tjd|dd�}| �|j� | �tj�|�� dS )zf
L{IReactorTCP.listenTCP} returns an object which provides
L{IListeningPort}.
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�IListeningPort�
providedBy�r7 �f�p1r r r! � test_listen� s zListeningTests.test_listenc sH t � � tjd� dd�}|�� j�� �fdd�}t�|j�}|�|� |S )a
The L{IListeningPort} returned by L{IReactorTCP.listenTCP} can be
stopped with its C{stopListening} method. After the L{Deferred} it
(optionally) returns has been called back, the port number can be bound
to a new server.
r rm rn c s t j�� dd�}|�� S )Nrm rn )r rp rG )�ignoredrF �rv �nr r! �cbStopListening� s z9ListeningTests.testStopListening.<locals>.cbStopListening) r] r rp �getHostrF r �
maybeDeferredrG r) )r7 rF r| r r rz r! �testStopListening� s
z ListeningTests.testStopListeningc C s t � }tjd|dd�}|�� S �Nr rm rn )r] r rp rG ru r r r! �testNumberedInterface� s z$ListeningTests.testNumberedInterfacec s^ t � }t�d|�� t� �� j����t� ����dk� � ��fdd�}t �
� j �}|� |�S )Nr ���c s �� t� ����dk� d S )Nr� )� assertFalse�repr�find��ign�rZ �portNor7 r r! �stoppedListening� s z5ListeningTests.testPortRepr.<locals>.stoppedListening)
r] r rp �strr} rF r� r� r� r r~ rG r) )r7 rv r� r r r� r! � testPortRepr� s
zListeningTests.testPortReprc s� t � }t�� }|_t�d|�� ��� j� t� }t�� }|_t� d� �
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Check that the repr string of the server transport get the good port
number if the server listens on 0.
r rm c sD | \}}� � � j}��t|j�d|� d�� |j�� |j�� d S )Nz <AccumulatingProtocol #0 on �>)r} rF � assertEqualr� r4 r5 )r$ � serverProto� clientProto�
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z-ListeningTests.test_serverRepr.<locals>.check)r] r r' r[ r rp rq rG r^ �
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disconnect�
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z ListeningTests.test_serverReprc sV t � �tjd�dd�����j� � ���fdd�}dd� � t��j�}|�|� |S )z�
Stop and then try to restart a L{tcp.Port}: after a restart, the
server should be able to handle client connections.
r rm rn c sZ �� � t� }t�� �_t�� |_t�d��� j|�}�� |j
� t� �j|jg�� � �S �Nrm )
�startListeningr^ r r' r[ r r� r} rF rq r� r� r) �ry r� rd ��closerF r7 �
serverFactoryr r! r| s
��z=ListeningTests.test_restartListening.<locals>.cbStopListeningc S � | \}}|j �� |j �� d S r �r4 r5 �r$ r� r� r r r! r� �
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If the server factory raises an exception in C{stopFactory}, the
deferred returned by L{tcp.Port.stopListening} should fail with the
corresponding error.
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Even if the server factory raise an exception in C{stopFactory}, the
corresponding C{tcp.Port} instance should be in a sane state and can
be restarted.
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��z?ListeningTests.test_restartAfterExcept.<locals>.cbStopListeningc S r� r r� r� r r r! r� F r� z5ListeningTests.test_restartAfterExcept.<locals>.close) r] rk r rp rq rG r� r� r) )r7 r� r| r r� r! �test_restartAfterExcept* s
�z&ListeningTests.test_restartAfterExceptc sj t � }tjd|dd�}|�� j}|�d� t� � t�� |_ t�� � _ t�
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If C{connectionLost} is called directly on a port object, it succeeds
(and doesn't expect the presence of a C{deferred} attribute).
C{connectionLost} is called by L{reactor.disconnectAll} at shutdown.
r rm rn Nc � � j �tj� d S r �r= r: r �ConnectionRefusedErrorr� �r� r r! r" ` � z;ListeningTests.test_directConnectionLostCall.<locals>.check)
r] r rp r} rF r> r^ r r' r[ r� r` r) )r7 r� rF r� r" r r� r! � test_directConnectionLostCallO s
z,ListeningTests.test_directConnectionLostCallc C s8 t � }dd� }||_tjd|dd�}| �t|jd� dS )a
If C{connectionLost} is called directory on a port object and that the
server factory raises an exception in C{stopFactory}, the exception is
passed through to the caller.
C{connectionLost} is called by L{reactor.disconnectAll} at shutdown.
c S r� r� r� r r r r! r� o r� zFListeningTests.test_exceptInConnectionLostCall.<locals>.raiseExceptionr rm rn N)r] rk r rp � assertRaisesr� r> r� r r r! � test_exceptInConnectionLostCalle s
z.ListeningTests.test_exceptInConnectionLostCallN)
rA rB rC rx r r� r� r� r� r� r� r� r� r r r r! rl � s
% rl c @ sX e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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dd� Z dd� Z dS )�
LoopbackTestsz$
Test loopback connections.
c sb t � }tjd|dd���|_��|j� ��� j}t� � t�d|� � � ��fdd�}� j �
|�S )zz
A port created with L{IReactorTCP.listenTCP} can be connected to with
L{IReactorTCP.connectTCP}.
r rm rn c s, �� � jj� �� �j� � j�tj� d S r )rr r �made� disconnectedrf r: r r; ��x��clientFrF r7 r r! r" � s z<LoopbackTests.test_closePortInProtocolFactory.<locals>.check) rE r rp rF rq rK r} r^ r� r_ r) )r7 rv r� r" r r� r! � test_closePortInProtocolFactory| s
z-LoopbackTests.test_closePortInProtocolFactoryc C s t |ddd� �tj� d S )Nr: c S s d S r r r� r r r! �<lambda>� � z,LoopbackTests._trapCnxDone.<locals>.<lambda>)�getattrr r; )r7 �objr r r! � _trapCnxDone� s zLoopbackTests._trapCnxDonec
s� t � }t�� }||_tjd|dd�}| �|j� |�� j }t
� }t�� }||_t� d||� t� ||g�}� fdd�} |�
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Invoke the given callback with a client protocol and a server protocol
which have been connected to each other.
r rm rn c s* | \}}� ||� |j �� |j �� d S r r� �r$ �serverProtocol�clientProtocolr r r! � connected� s
z>LoopbackTests._connectedClientAndServerTest.<locals>.connected)r] r r' r[ r rp rq rG r} rF r^ r� r� r) )
r7 r r� r� rF r� r� r� � connsMader� r r r! � _connectedClientAndServerTest� s
z+LoopbackTests._connectedClientAndServerTestc � � fdd�}� � |�S )a
The transport of a protocol connected with L{IReactorTCP.connectTCP} or
L{IReactor.TCP.listenTCP} can have its I{TCP_NODELAY} state inspected
and manipulated with L{ITCPTransport.getTcpNoDelay} and
L{ITCPTransport.setTcpNoDelay}.
c �\ | |fD ]'}|j }� �|�� d� |�d� � �|�� d� |�d� � �|�� d� qd S �Nr rQ )r4 r� �
getTcpNoDelay�
setTcpNoDelay�r� r� rZ r4 r6 r r! r" � �
�z,LoopbackTests.test_tcpNoDelay.<locals>.check�r� �r7 r" r r6 r! �test_tcpNoDelay� �
z LoopbackTests.test_tcpNoDelayc r� )a
The transport of a protocol connected with L{IReactorTCP.connectTCP} or
L{IReactor.TCP.listenTCP} can have its I{SO_KEEPALIVE} state inspected
and manipulated with L{ITCPTransport.getTcpKeepAlive} and
L{ITCPTransport.setTcpKeepAlive}.
c r� r� )r4 r� �getTcpKeepAlive�setTcpKeepAliver� r6 r r! r" � r� z.LoopbackTests.test_tcpKeepAlive.<locals>.checkr� r� r r6 r! �test_tcpKeepAlive� r� z LoopbackTests.test_tcpKeepAlivec s0 t � � tjdd� dd� � fdd�}� j�|�S )Nrm �E � )�timeoutc r� r r� �ry �r� r r! r" � r� z(LoopbackTests.testFailing.<locals>.check)r^ r r� r` r) r� r r� r! � testFailing� s zLoopbackTests.testFailingc s� g �t d�D ]}t�� }|�d� |�d� ��|� qt��� t�t tj
�� � ���fdd���� }�� |t j
� �fdd�}|�|� �fdd �}|�|� |S )
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Assert that the error number of the ConnectionRefusedError is
ECONNREFUSED, and not some other socket related error.
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�rm r rQ c sF ���fdd�} �� � }|�� \}}|�� � �||�}|�| � |S )Nc s" | j �� �r
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Darn. Kill it and try again, if there are any tries left.
z?Could not fail to connect - could not test errno for that case.N)r4 r5 �fail��proto)r7 �
serverSockets�tryConnectFailurer r! r� s
�z]LoopbackTests.test_connectionRefusedErrorNumber.<locals>.tryConnectFailure.<locals>.connected)�pop� getsocknamer� r� r) )r� � serverSocket�
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serverPort�connectDeferred��
clientCreatorr7 r� r� r r! r� s
zJLoopbackTests.test_connectionRefusedErrorNumber.<locals>.tryConnectFailurec s � � | jtj� d S r )r� �osError�errno� ECONNREFUSED)�excr6 r r! � connRefused � zDLoopbackTests.test_connectionRefusedErrorNumber.<locals>.connRefusedc s � r
� � � �� � s| S r )r� r� �� passthrough)r� r r! �cleanup s �z@LoopbackTests.test_connectionRefusedErrorNumber.<locals>.cleanup)�range�socket�bind�listenrR �random�shuffler �
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z/LoopbackTests.test_connectionRefusedErrorNumberc C s | � tjtjddt� � dS )zu
Connecting to a named service which does not exist raises
L{error.ServiceNameUnknownError}.
rm �thisbetternotexistN)r� r �ServiceNameUnknownErrorr r� r^ r6 r r r! �test_connectByServiceFail& s �z'LoopbackTests.test_connectByServiceFailc s� t � �t�� }|�_tjd�dd�}��|j� |�� j � t
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L{IReactorTCP.connectTCP} accepts the name of a service instead of a
port number and connects to the port number associated with that
service, as defined by L{socket.getservbyname}.
r rm rn c s | dkr
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� S dS )N�http�tcpr� r )� serviceName� protocolName)r� r r! �fakeGetServicePortByNameC s zELoopbackTests.test_connectByService.<locals>.fakeGetServicePortByName�
getservbynamer c s. | \}}� � �jd� |j�� |j�� d S )Nz7Server factory was not called upon to build a protocol.)rr rS r4 r5 r� )r7 r� r r! r� N s �
z6LoopbackTests.test_connectByService.<locals>.connected)r] r r' r[ r rp rq rG r} rF r^ �patchr� r� r� r) )r7 r� rF �
clientFactoryr� r �connMader� r )r� r7 r� r! �test_connectByService3 s
z#LoopbackTests.test_connectByServiceN)
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r� c @ �$ e Zd ZdZdZdd� Zdd� ZdS )�StartStopFactoryr c C � | j s| jrt�d| _ d S ra ��startedrj r� r6 r r r! � startFactory` �
z StartStopFactory.startFactoryc C s | j r| jrt�d| _d S ra r r6 r r r! rk e r z StartStopFactory.stopFactoryN)rA rB rC r rj r rk r r r r! r [ s
r c @ s, e Zd ZdZdZdd� Zdd� Zdd� ZdS ) �ClientStartStopFactoryr c O s& t j| g|�R i |�� t�� | _d S r )r^ rO r r' � whenStopped)r7 �a�kwr r r! rO p s z ClientStartStopFactory.__init__c C r ra r r6 r r r! r t r z#ClientStartStopFactory.startFactoryc C s& | j r| jrt�d| _| j�d� d S )NrQ T)r rj r� r r r6 r r r! rk y s z"ClientStartStopFactory.stopFactoryN)rA rB rC r rj rO r rk r r r r! r k s r c @ � e Zd ZdZdd� Zdd� ZdS )� FactoryTestszTests for factories.c s� t � � tjd� dd�}��|j� ��� j� jfd� tjd� dd�}tjd� dd����� j� jfd� t� |j�}t� |j�}t�
||g�}� ��fdd�}|� |� � �fdd�}|� |� |S ) a
The factory passed to L{IReactorTCP.listenTCP} should be started only
when it transitions from being used on no ports to being used on one
port and should be stopped only when it transitions from being used on
one port to being used on no ports.
r rm rn �rQ r c s �� � j� jfd� ��� S )Nr )r� r rj rG r� �rv �p3r7 r r! �cbClosed� s z3FactoryTests.test_serverStartStop.<locals>.cbClosedc s �� � j� jfd� d S )N)rQ rQ )r� r rj r� �rv r7 r r! � cbClosedAll� � z6FactoryTests.test_serverStartStop.<locals>.cbClosedAll) r r rp rq rG r� r rj r r~ r� r) )r7 rw �p2�d1r. rW r r! r r r! �test_serverStartStop� s
z!FactoryTests.test_serverStartStopc sb t � }tjd|dd�}||_| �|j� |�� j}t� � t�d|� � | � � j
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The factory passed to L{IReactorTCP.connectTCP} should be started when
the connection attempt starts and stopped when it is over.
r rm rn c � � j S r ri r �rU r r! r� � � z3FactoryTests.test_clientStartStop.<locals>.<lambda>) rE r rp rF rq rK r} r r� rr r r/ )r7 rv rZ r� r r' r! �test_clientStartStop� s
z!FactoryTests.test_clientStartStopN)rA rB rC rL r% r) r r r r! r � s -r c @ �( e Zd ZdZdd� Zdd� Zdd� ZdS ) �CannotBindTestsz]
Tests for correct behavior when a reactor cannot bind to the required TCP
port.
c C sz t � }tjd|dd�}| �|j� |�� j}|�� }| �|jd� | �|j d� | �|j|� | j
t j tj||dd� dS )z�
L{IReactorTCP.listenTCP} raises L{error.CannotListenError} if the
address to listen on is already in use.
r rm rn �TCPN)
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TCP protocols support half-close connections, but not all of them
support being notified of write closes. In this case, test that
half-closing the connection causes the peer's connection to be
closed.
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If the other side has already closed its connection,
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Test half-closing connections where notification code has bugs.
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Set up a server and connect a client to it. Return a Deferred which
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Fake implementation of a callback which illegally raises an
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Helper for testing that an exception is logged by the time the
client protocol loses its connection.
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If C{readConnectionLost} raises an exception when the transport
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be logged and the protocol should be disconnected completely.
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If C{writeConnectionLost} raises an exception when the transport
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be logged and the protocol should be disconnected completely.
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Test logging facility of TCP base classes.
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Check that the log customization of the client transport happens
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Test some behaviors of pausing the production of a transport.
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Test the order of reactor callbacks
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Check that Protocol.connectionLost is called before factory's
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