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Editing: test_cache.cpython-38.pyc
U W[4 � @ sj d Z ddlmZmZ ddlZddlmZ ddlmZ ddl m Z m Z ddl m Z mZ G dd � d ej�ZdS ) z# Tests for L{twisted.names.cache}. � )�division�absolute_importN)� verifyClass)�unittest)�dns�cache)�task� interfacesc @ s@ e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dS )� CachingTestsz+ Tests for L{cache.CacheResolver}. c C s t tjtj� dS )zK L{cache.CacheResolver} implements L{interfaces.IResolver} N)r r Z IResolverr � CacheResolver��self� r �?/usr/lib/python3/dist-packages/twisted/names/test/test_cache.py�test_interface s zCachingTests.test_interfacec C sF t �tjdtjtjd�t�� g g g ffi�}|�d��| j g g g f�S )N� example.com��name�type�cls) r r r �QueryZMX�IN�timeZlookupMailExchange� addCallback� assertEqual)r �cr r r � test_lookup s � �zCachingTests.test_lookupc C s� t �dt jt jdt �dd��gt �dt jt jdt �dd��gt �dt jt jdt �dd��gf}t�� }t jdt jt jd�}tj ||� � |fi|d�}|� d� | � ||j� | � |�d�t j�S )z� Cache entries passed into L{cache.CacheResolver.__init__} get cancelled just like entries added with cacheResult r �< � 127.0.0.1�2 �( r �Zreactor)r �RRHeader�Ar �Record_Ar �Clockr r r �seconds�advance� assertNotIn� assertFailure� lookupAddress� DomainError)r �r�clock�queryr r r r �test_constructorExpires( s& � � �� �z$CachingTests.test_constructorExpiresc s� t �dt jt jdt �dd��gt �dt jt jdt �dd��gt �dt jt jdt �dd��gf}t�� }tj|d�}|� t j dt jt jd�|� |� d� � fd d �}|� d�� |�S ) z� When a cache lookup finds a cached entry from 1 second ago, it is returned with a TTL of original TTL minus the elapsed 1 second. r r r r r r! r � c s^ � � | d d jd� � � | d d jd� � � | d d jd� � � | d d jjd� d S )Nr �; r0 �1 � �' r )r Zttlr )�resultr r r �cbLookupV s z0CachingTests.test_normalLookup.<locals>.cbLookup)r r" r# r r$ r r% r r � cacheResultr r' r* r )r r, r- r r6 r r r �test_normalLookupC s � � �� z CachingTests.test_normalLookupc C s� t �dt jt jdt �dd��gt �dt jt jdt �dd��gt �dt jt jdt �dd��gf}t�� }tj|d�}t j dt jt jd�}|� ||� |� d� | � ||j� | � |�d�t j�S )zW Once the TTL has been exceeded, the result is removed from the cache. r r r r r r! r )r r" r# r r$ r r% r r r r7 r' r( r) r* r+ )r r, r- r r. r r r �test_cachedResultExpires_ s( � � �� �z%CachingTests.test_cachedResultExpiresc C s� t �dt jt jdt �dd��gt �dt jt jdt �dd��gt �dt jt jdt �dd��gf}t�� }dd� |_tj t j dt jt jd�|� � |fi|d �}|� d � | � |�d�t j�S ) z� When the cache is queried exactly as the cached entry should expire but before it has actually been cleared, the cache does not return the expired entry. r r r r r c _ s d S )Nr )�args�kwargsr r r �<lambda>� � z4CachingTests.test_expiredTTLLookup.<locals>.<lambda>r r! g����� N@)r r" r# r r$ r r% Z callLaterr r r r& r' r) r* r+ )r r, r- r r r r �test_expiredTTLLookupx s. � � �� �� �z"CachingTests.test_expiredTTLLookupN) �__name__� __module__� __qualname__�__doc__r r r/ r8 r9 r> r r r r r s r )rB Z __future__r r r Zzope.interface.verifyr Z twisted.trialr Z twisted.namesr r Ztwisted.internetr r ZTestCaser r r r r �<module> s
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