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o �b�1 � @ s� d Z ddlZddlZddlZddlmZ ddlmZmZm Z m Z m Z ddl m Z mZ ddlmZ ddlmZ ddlmZ dd lmZmZ d Zeej�Zej � ej �ed < G d d � d e j �Z G dd� de�Z!dS )z� Tests for L{twisted.internet.stdio}. @var properEnv: A copy of L{os.environ} which has L{bytes} keys/values on POSIX platforms and native L{str} keys/values on Windows. � N)�skipIf)�defer�error�protocol�reactor�stdio)�filepath�log)� requireModule)�platform)� ConnectionLostNotifyingProtocol)�SkipTest�TestCases xyz123abc Twisted is great!� PYTHONPATHc @ s4 e Zd ZdZdZdd� Zdd� Zdd� Zd d � ZdS ) � StandardIOTestProcessProtocola� Test helper for collecting output from a child process and notifying something when it exits. @ivar onConnection: A L{defer.Deferred} which will be called back with L{None} when the connection to the child process is established. @ivar onCompletion: A L{defer.Deferred} which will be errbacked with the failure associated with the child process exiting when it exits. @ivar onDataReceived: A L{defer.Deferred} which will be called back with this instance whenever C{childDataReceived} is called, or L{None} to suppress these callbacks. @ivar data: A C{dict} mapping file descriptors to strings containing all bytes received from the child process on each file descriptor. Nc C s t �� | _t �� | _i | _d S �N)r �Deferred� onConnection� onCompletion�data��self� r �9/usr/lib/python3/dist-packages/twisted/test/test_stdio.py�__init__8 s z&StandardIOTestProcessProtocol.__init__c C s | j �d � d S r )r �callbackr r r r �connectionMade= � z,StandardIOTestProcessProtocol.connectionMadec C sB | j �|d�| | j |< | jdur | jd}| _|�| � dS dS )z� Record all bytes received from the child process in the C{data} dictionary. Fire C{onDataReceived} if it is not L{None}. � N)r �get�onDataReceivedr )r �name�bytes�dr r r �childDataReceived@ s �z/StandardIOTestProcessProtocol.childDataReceivedc C s | j �|� d S r )r r )r �reasonr r r � processEndedJ r z*StandardIOTestProcessProtocol.processEnded) �__name__� __module__� __qualname__�__doc__r r r r$ r& r r r r r # s r c @ s� e Zd Ze�� red�du rdZdd� Zdd� Zdd � Z d d � Z d d � Z dd� Z dd� Z dd� Zdd� Zdd� Zdd� Zee�� d�dd � �ZdS ) �StandardInputOutputTests� win32processNzIOn windows, spawnProcess is not available in the absence of win32process.c O s: t jdd| tjjgt|� }tj|t j|fdti|��S )a_ Launch a child Python process and communicate with it using the given ProcessProtocol. @param proto: A L{ProcessProtocol} instance which will be connected to the child process. @param sibling: The basename of a file containing the Python program to run in the child process. @param *args: strings which will be passed to the child process on the command line as C{argv[2:]}. @param **kw: additional arguments to pass to L{reactor.spawnProcess}. @return: The L{IProcessTransport} provider for the spawned process. s -ms twisted.test.�env)�sys� executabler � __class__r( �list� spawnProcess� properEnv)r �proto�sibling�args�kwr r r � _spawnProcessV s �� z&StandardInputOutputTests._spawnProcessc s$ �fdd�}� fdd�}|� ||�S )Nc s � � d| ��� d S )Nz%Process terminated with non-Failure: )�fail)�resultr r r �cbq s z4StandardInputOutputTests._requireFailure.<locals>.cbc s � | �S r r )�err)r r r �ebt s z4StandardInputOutputTests._requireFailure.<locals>.eb)� addCallbacks)r r# r r; r= r )r r r �_requireFailurep s z(StandardInputOutputTests._requireFailurec sL �� � � t�d� � t� ��j}���d� � � ��fdd�}��||�S )z� Verify that a protocol connected to L{StandardIO} can disconnect itself using C{transport.loseConnection}. �Child process logging to s stdio_test_loseconnc sb t � ��}|D ] }t�d|�� � qW d � n1 s w Y ��d�j� | �tj� d S )NzChild logged: � ) �openr �msg�rstrip�failIfInr �trapr � ProcessDone)r% �f�line�� errorLogFile�pr r r r& � s � �zBStandardInputOutputTests.test_loseConnection.<locals>.processEnded)�mktempr rC r r r8 r? �r r# r& r rJ r �test_loseConnectiony s z,StandardInputOutputTests.test_loseConnectionc sf | � � }t�d| � t� � t�� � _� fdd�}� j�|� dd� }| �� j|�}| � � d|� |S )z� When stdin is closed and the protocol connected to it implements L{IHalfCloseableProtocol}, the protocol's C{readConnectionLost} method is called. r@ c s � j }� j�� |S r )r � transport� closeStdin)�ignoredr# �rL r r �cbBytes� s zAStandardInputOutputTests.test_readConnectionLost.<locals>.cbBytesc S s | � tj� d S r )rF r rG �r% r r r r& � r zFStandardInputOutputTests.test_readConnectionLost.<locals>.processEndeds stdio_test_halfclose) rM r rC r r r r � addCallbackr? r8 )r rK rT r& r# r rS r �test_readConnectionLost� s z0StandardInputOutputTests.test_readConnectionLostc s^ t � � z �j� dtdd� W n ty } ztt|���d}~ww � �fdd�}��� j|�S )z� Verify that a write made directly to stdout using L{os.write} after StandardIO has finished is reliably received by the process reading that stdout. s stdio_test_lastwriteT)�usePTYNc s2 �� � jd �t�d� j�d�� | �tj� dS )z� Asserts that the parent received the bytes written by the child immediately after the child starts. rA z Received z) from child, did not find expected bytes.N)� assertTruer �endswith�UNIQUE_LAST_WRITE_STRINGrF r rG rU �rL r r r r& � s �zEStandardInputOutputTests.test_lastWriteReceived.<locals>.processEnded)r r8 r[ � ValueErrorr �strr? r )r �er& r r\ r �test_lastWriteReceived� s � �� z/StandardInputOutputTests.test_lastWriteReceivedc �2 t � � � j}��� d� � �fdd�}��||�S )z� Verify that the transport of a protocol connected to L{StandardIO} has C{getHost} and C{getPeer} methods. s stdio_test_hostpeerc s6 � j d �� \}}��|� ��|� | �tj� d S )NrA )r � splitlinesrY rF r rG )r% �host�peerr\ r r r& � s z?StandardInputOutputTests.test_hostAndPeer.<locals>.processEnded�r r r8 r? rN r r\ r �test_hostAndPeer� s z)StandardInputOutputTests.test_hostAndPeerc ra )z� Verify that the C{write} method of the transport of a protocol connected to L{StandardIO} sends bytes to standard out. s stdio_test_writec �" �� � jd d� | �tj� d S �NrA s ok!�� assertEqualr rF r rG rU r\ r r r& � � z9StandardInputOutputTests.test_write.<locals>.processEndedre rN r r\ r � test_write� � z#StandardInputOutputTests.test_writec ra )z� Verify that the C{writeSequence} method of the transport of a protocol connected to L{StandardIO} sends bytes to standard out. s stdio_test_writeseqc rg rh ri rU r\ r r r& � rk zAStandardInputOutputTests.test_writeSequence.<locals>.processEndedre rN r r\ r �test_writeSequence� rm z+StandardInputOutputTests.test_writeSequencec C sV | � � }t|d��}td�D ] }|�d|f � qW d � |S 1 s$w Y |S )N�wbi � %d )rM rB �range�write)r �junkPath�junkFile�ir r r � _junkPath s � ��z"StandardInputOutputTests._junkPathc sd t � ��j}g �ttd���� ���fdd�� ���d���j�� � ����fdd�}��||�S )z� Verify that the transport of a protocol connected to L{StandardIO} is a working L{IProducer} provider. �d c s< �r �� d��� f � ���d � t�d� d � d S d S )Nrp ���g{�G�z�?)�append�poprr r � callLater)�ign)r �proc�toWrite�writtenr r r s �z>StandardInputOutputTests.test_producer.<locals>.connectionMades stdio_test_producerc s> �� � jd d���� ���dt��f � | �tj� d S )NrA r z*Connection lost with %d writes left to go.)rj r �join� assertFalse�lenrF r rG rU )rL r r~ r r r r& s �z<StandardInputOutputTests.test_producer.<locals>.processEnded)r r r1 rq r8 r rV r? rN r )r rL r} r r~ r r � test_producer s z&StandardInputOutputTests.test_producerc s> t � ��j}��� � ���d� � � ��fdd�}��||�S )z� Verify that the transport of a protocol connected to L{StandardIO} is a working L{IConsumer} provider. s stdio_test_consumerc sP t � d��}���jd |�� � W d � n1 sw Y | �tj� d S )N�rbrA )rB rj r �readrF r rG )r% rH �rs rL r r r r& 2 s �z<StandardInputOutputTests.test_consumer.<locals>.processEnded)r r rv r8 r? rN r r� r � test_consumer& s z&StandardInputOutputTests.test_consumerzpStandardIO does not accept stdout as an argument to Windows. Testing redirection to a file is therefore harder.c s� t �� }t|�}t���� ����d� �_}��|j � t |� � d�}t � � s@t�� \}}��tj |� ��tj |� ||d< tj|fi |��� d�t�� �� ���fdd��t�d�� ����fdd �}|�|� |S ) aE If L{StandardIO} is created with a file descriptor which refers to a normal file (ie, a file from the filesystem), L{StandardIO.write} writes bytes to that file. In particular, it does not immediately consider the file closed or call its protocol's C{connectionLost} method. ro )�stdout�stdin� c s@ �D ]} | �kr� � � d S � �d| f � t�d�� d S )N� %dr )�loseConnectionrr r r{ )�value)� connection�count�howMany�spinr r r� ] s zAStandardInputOutputTests.test_normalFileStandardOut.<locals>.spinr c s< �� t� ��d � �� ��� d�dd� t��D ��� d S )NrA r c s s � | ]}d |f V qdS )r� Nr )�.0ru r r r � <genexpr>m s � zVStandardInputOutputTests.test_normalFileStandardOut.<locals>.cbLost.<locals>.<genexpr>)rj �next� getContentr� rq rU )r� r� �pathr r r �cbLostj s �zCStandardInputOutputTests.test_normalFileStandardOut.<locals>.cbLost)r r r r �FilePathrM rB �normal� addCleanup�close�dict�filenor � isWindows�os�piper � StandardIO� itertoolsr� r r{ rV )r � onConnLostr4 r� �kwargs�r�wr� r )r� r� r� r� r r� r �test_normalFileStandardOut9 s& z3StandardInputOutputTests.test_normalFileStandardOut)r' r( r) r r� r �skipr8 r? rO rW r` rf rl rn rv r� r� r r� r r r r r+ N s( � ' �r+ )"r* r� r� r. �unittestr �twisted.internetr r r r r �twisted.pythonr r �twisted.python.reflectr �twisted.python.runtimer �twisted.test.test_tcpr �twisted.trial.unittestr r r[ r� �environr3 �pathsepr� r� �ProcessProtocolr r+ r r r r �<module> s +
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