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Editing: test_filedescriptor.cpython-38.pyc
U W[� � @ sx d Z ddlmZmZ ddlmZ ddlmZ ddlm Z ddl m Z G dd� de�Z G d d � d e �Z G d d � d e �Zd S )zA Whitebox tests for L{twisted.internet.abstract.FileDescriptor}. � )�division�absolute_import)� verifyClass)�FileDescriptor)� IPushProducer)�SynchronousTestCasec @ s4 e Zd ZdZdZdd� Zdd� Zdd� Zd d � Zd S ) � MemoryFilea- A L{FileDescriptor} customization which writes to a Python list in memory with certain limitations. @ivar _written: A C{list} of C{bytes} which have been accepted as written. @ivar _freeSpace: A C{int} giving the number of bytes which will be accepted by future writes. Tc C s t j| t� d� g | _d| _d S )N�Zreactorr )r �__init__�object�_written� _freeSpace��self� r �K/usr/lib/python3/dist-packages/twisted/internet/test/test_filedescriptor.pyr s zMemoryFile.__init__c C s d S �Nr r r r r � startWriting$ s zMemoryFile.startWritingc C s d S r r r r r r � stopWriting( s zMemoryFile.stopWritingc C s: t | jt|��}|r6| j|8 _| j�|d|� � |S )z� Copy at most C{self._freeSpace} bytes from C{data} into C{self._written}. @return: A C{int} indicating how many bytes were copied from C{data}. N)�minr �lenr �append)r �dataZ acceptLengthr r r � writeSomeData, s zMemoryFile.writeSomeDataN) �__name__� __module__� __qualname__�__doc__Z connectedr r r r r r r r r s r c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �FileDescriptorTestsz& Tests for L{FileDescriptor}. c C s t t� d�}| �t|jd� dS )zF L{FileDescriptor.write} doesn't accept unicode data. r ZfooN)r r � assertRaises� TypeError�write�r ZfileDescriptorr r r �$test_writeWithUnicodeRaisesException> s z8FileDescriptorTests.test_writeWithUnicodeRaisesExceptionc C s& t t� d�}| �t|jdddg� dS )zN L{FileDescriptor.writeSequence} doesn't accept unicode data. r s fooZbars bazN)r r r r Z writeSequencer" r r r �,test_writeSequenceWithUnicodeRaisesExceptionF s �z@FileDescriptorTests.test_writeSequenceWithUnicodeRaisesExceptionc C s | � ttt�� dS )zF L{FileDescriptor} should implement L{IPushProducer}. N)Z assertTruer r r r r r r �$test_implementInterfaceIPushProducerO s z8FileDescriptorTests.test_implementInterfaceIPushProducerN)r r r r r# r$ r% r r r r r : s r c @ s e Zd ZdZdd� ZdS )�WriteDescriptorTestszN Tests for L{FileDescriptor}'s implementation of L{IWriteDescriptor}. c C s" t � }|�d� | �|�� � dS )z� When L{FileDescriptor.writeSomeData} returns C{0} to indicate no more data can be written immediately, L{FileDescriptor.doWrite} returns L{None}. s hello, worldN)r r! Z assertIsNoneZdoWrite)r Z descriptorr r r �test_kernelBufferFull[ s z*WriteDescriptorTests.test_kernelBufferFullN)r r r r r' r r r r r& W s r& N)r Z __future__r r Zzope.interface.verifyr Ztwisted.internet.abstractr Ztwisted.internet.interfacesr Ztwisted.trial.unittestr r r r& r r r r �<module> s (
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