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a k�h(c � @ s d Z ddlZddlZddlZddlZddlZddlZddlmZ ddl m Z ddl m Z ddlmZ ddlmZ ddlmZmZmZ dd lmZ G d d � d e �ZG d d � d e �ZG dd� dej�ZdZ dd� Z dd� Z G dd� dej�Z G dd� dej�Z G dd� dej�Z!dS )z" Tests for Twisted plugin system. � N)�invalidate_caches)�Callable)� Interface)�plugin)�FilePath)� addObserver�removeObserver�textFromEventDict)�unittestc @ s e Zd ZdZdS )� ITestPluginzS A plugin for use by the plugin system's unit tests. Do not use this. N��__name__� __module__� __qualname__�__doc__� r r ��/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/twisted/test/test_plugin.pyr s r c @ s e Zd ZdZdS )� ITestPlugin2z See L{ITestPlugin}. Nr r r r r r # s r c @ s� e Zd ZdZdd� Zdd� Zd!dd�Zd d � Zed �d d �Z e dd� �Z dd� Z e dd� �Z e dd� �Z e dd� �Ze dd� �Ze dd� �Ze d d � �Zd d � Zd S )"� PluginTestsz_ Tests which verify the behavior of the current, active Twisted plugins directory. c C s� t jdd� | _t j�� | _t| �� �| _| j� � | j� d�| _ | j � � | j � d�� d� tt ��d��| j � d�� d| _t j�d| jj� ddl}|| _dS ) zV Save C{sys.path} and C{sys.modules}, and create a package for tests. N� mypackage� __init__.py� zplugin_basic.pyz testplugin.py� testpluginr )�sys�path� originalPath�modules�copy� savedModulesr �mktemp�root�createDirectory�child�package� setContent�__file__�sibling�copyTo�originalPlugin�insertr �module)�selfr r r r �setUp/ s �zPluginTests.setUpc C s, | j tjdd�< tj�� tj�| j� dS �zR Restore C{sys.path} and C{sys.modules} to their original values. N�r r r r �clear�updater �r+ r r r �tearDownG s zPluginTests.tearDownFc C s� |j �d�}d�|d d� �}|d }ttj| |� tj|j = ddg|rPdgpRg D ]L}zt�|j| � W qV t y� } z|j t j kr�� W Y d }~qVd }~0 0 qVd S )N�.����c�o� ) r �split�join�delattrr r �os�remover% �OSError�errno�ENOENT)r+ r* Z deleteSourceZ modulePath� packageName� moduleName�extZoser r r �_unimportPythonModuleO s z!PluginTests._unimportPythonModulec C s | j �d��� dS )z; Remove the plugins B{droping.cache} file. � dropin.cacheN)r# r" r< r1 r r r � _clearCache] s zPluginTests._clearCache��methc s t �� �� fdd��}|S )z� This is a paranoid test wrapper, that calls C{meth} 2 times, clear the cache, and calls it 2 other times. It's supposed to ensure that the plugin system behaves correctly no matter what the state of the cache is. c s, � | � � | � | � � � | � � | � d S )N)rE r1 rF r r �wrappedk s z+PluginTests._withCacheness.<locals>.wrapped)� functools�wraps)rG rH r rF r �_withCachenessc s zPluginTests._withCachenessc C s� t �| j�}|| j }| �|jd| j� �� | �d|j� dd� |jD �d }| � |j |� | �|j d� | �|j� � d� | �|j tt jg� |�� }| � |tjd| j� � j� ddlm} | � ||j� dS ) a Check that the cache returned by L{plugin.getCache} hold the plugin B{testplugin}, and that this plugin has the properties we expect: provide L{TestPlugin}, has the good name and description, and can be loaded successfully. z mypackage.zI'm a test drop-in.c S s g | ]}t |jv r|�qS r )r �provided��.0�pr r r � <listcomp>� r z*PluginTests.test_cache.<locals>.<listcomp>r � TestPluginz*A plugin used solely for testing purposes.N)r �getCacher* r( � assertEqualrA �assertIn� description�pluginsZassertIs�dropin�name�striprL r ZIPlugin�loadr r rQ Zmypackage.testpluginr )r+ �cacherW �p1Z realPlugin�tpr r r � test_cacheu s$ �� zPluginTests.test_cachec C s> t �| j�| j }tdd� |jD ��d }| �t|�d� dS )zm L{CachedPlugin} has a helpful C{repr} which contains relevant information about it. c s s | ]}|j d kr|V qdS )rQ N�rX rM r r r � <genexpr>� r z-PluginTests.test_cacheRepr.<locals>.<genexpr>r zT<CachedPlugin 'TestPlugin'/'mypackage.testplugin' (provides 'ITestPlugin, IPlugin')>N)r rR r* r( �listrV rS �repr)r+ Z cachedDropinZ cachedPluginr r r �test_cacheRepr� s ��zPluginTests.test_cacheReprc C sL t t�t| j��}| �t|�d� ddg}|D ]}|�|j� |� � q.dS )a L{plugin.getPlugins} should return the list of plugins matching the specified interface (here, L{ITestPlugin2}), and these plugins should be instances of classes with a C{test} method, to be sure L{plugin.getPlugins} load classes correctly. � ZAnotherTestPluginZThirdTestPluginN) ra r � getPluginsr r* rS �lenr< r �test)r+ rV �namesrO r r r � test_plugins� s zPluginTests.test_pluginsc C s� t t��d��| j�d�� z�| �dtj� | � t tjd d�d� t t � t| j��}| �t|�d� dd g}|D ]}|�|j� |�� qrW | �tjd d � n| �tjd d � 0 d S ) ze Check that L{plugin.getPlugins} is able to detect plugins added at runtime. �plugin_extra1.py�pluginextra.py�mypackage.pluginextrar � pluginextraz&mypackage still has pluginextra modulerd rQ �FourthTestPluginTN)r r% r& r' r# r" �failIfInr r � assertFalse�hasattrra r re r r* rS rf r< r �test1rC �r+ �plgsrh rO r r r �test_detectNewFiles� s �� z PluginTests.test_detectNewFilesc C s� t t��d��| j�d�� z�tt�t | j ��}| � t |�d� t t��d��| j�d�� | � tjd � tt�t | j ��}| � t |�d� g d�}|D ]}|�|j� |�� q�W | � tjd d� n| � tjd d� 0 d S ) z� Check that if the content of a plugin change, L{plugin.getPlugins} is able to detect the new plugins added. rj rk rd zplugin_extra2.pyrl � )rQ rn ZFifthTestPluginTN)r r% r& r' r# r" ra r re r r* rS rf rC r r r< r rr rs r r r �test_detectFilesChanged� s" � � z#PluginTests.test_detectFilesChangedc C s� t t��d��| j�d�� z(tt�t | j �� W | � t j d d� n| � t j d d� 0 tt�t | j ��}| �dt|�� dS )zs Check that when a dropin file is removed, L{plugin.getPlugins} doesn't return it anymore. rj rk rl T� N)r r% r& r' r# r" ra r re r r* rC r r rS rf )r+ rt r r r �test_detectFilesRemoved� s �(z#PluginTests.test_detectFilesRemovedc C sr | � � }| �tj�|�� | jj�|� z4tt � t | j��}| � t |�d� W | jj�|� n| jj�|� 0 dS )zy Test that getCache skips over any entries in a plugin package's C{__path__} which do not exist. rx N)r rp r; r �existsr* �__path__�appendra r re r rS rf r< )r+ r rt r r r �test_nonexistentPathEntry s z%PluginTests.test_nonexistentPathEntryc C s� t | �� �}| �|�� � |�� |�d�j}| jj� |� z4t t � t | j��}| �t|�d� W | jj�|� n| jj�|� 0 dS )z� Test that getCache skips over any entries in a plugin package's C{__path__} which refer to children of paths which are not directories. Z test_packagerx N)r r rp rz �touchr" r r* r{ r| ra r re r rS rf r< )r+ r r" rt r r r �test_nonDirectoryChildEntry s z'PluginTests.test_nonDirectoryChildEntryc C s� t �| j� | j�d�}tt��d��| j�d�� t � t � | jj d� t � |j d� | � t j | jj d� | � t j |j d� g }t|j� | � t|j� t �| j�}| �d|� | �| j|� d|j tjf }|D ]}|t|�v r� q�q�| �d |f � d S ) z� The C{dropin.cache} file may not be writable: the cache should still be attainable, but an error should be logged to show that the cache couldn't be updated. rD rj rk i@ � i� rm �3Unable to write to plugin cache %s: error number %d�;Did not observe unwriteable cache warning in log events: %rN)r rR r* r# r" r r% r& r' �invalidateImportCachesr; �chmodr � addCleanupr r| r rT r( r> �EPERMr �fail)r+ Z cachepath�eventsr[ �expected�eventr r r �test_deployedMode, s8 � � ��z PluginTests.test_deployedModeN)F)r r r r r, r2 rC rE r rK r^ rc ri ru rw ry r} r r� r r r r r ) s, $ r sj from twisted.plugin import pluginPackagePaths __path__.extend(pluginPackagePaths(__name__)) __all__ = [] c C s d� | ��d�S )Nz�from zope.interface import provider from twisted.plugin import IPlugin from twisted.test.test_plugin import ITestPlugin @provider(IPlugin, ITestPlugin) class {}: pass �ascii)�format�encoder_ r r r �pluginFileContentsd s � � ��r� c C sl | � � | �d�}|� � |r.|�d��d� |�d�}|� � |rT|�d��t� |�|d ��|� |S )z' Create a plugindummy package. � plugindummyr r rV �.py)r! r" r$ �pluginInitFile)Z entrypathZ pluginContent�real� pluginModule�pkgZplugsr r r �_createPluginDummyt s r� c @ s` e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z dd� Z dd� Z dS )�DeveloperSetupTestsz� These tests verify things about the plugin system without actually interacting with the deployed 'twisted.plugins' package, instead creating a temporary package. c C s> t jdd� | _t j�� | _t| �� �| _| j� � | j� d�| _ | j� d�| _ | j� d�| _ t| j td�dd�| _t| j td�dd�| _t| j td �d d �| _t j�d d � | j | j fD �� | �� | j � d�� d�| _| j� d�| _t�� }t�| j� d�j|d fd � t�| jj|d fd � | �� | �� dS )a7 Create a complex environment with multiple entries on sys.path, akin to a developer's environment who has a development (trunk) checkout of Twisted, a system installed version of Twisted (for their operating system's tools) and a project which provides Twisted plugins. NZ system_pathZdevelopment_pathZapplication_path�systemTZplugindummy_builtin�dev�appFZplugindummy_appc S s g | ] }|j �qS r �r �rN �xr r r rP � r z-DeveloperSetupTests.setUp.<locals>.<listcomp>r� rV rD zplugindummy_builtin.pyi� rd i� ) r r � savedPathr r r r r ZfakeRootr! r" � systemPath�devPath�appPathr� r� Z systemPackageZ devPackage� appPackage�extend� getAllPlugins�sysplug�syscache�timer; �utime� lockSystem�resetEnvironment)r+ �nowr r r r, � s2 ��� zDeveloperSetupTests.setUpc C s$ t �| jjd� t �| jjd� dS )zW Lock the system directories, as if they were unwritable by this user. im N�r; r� r� r r� r1 r r r r� � s z DeveloperSetupTests.lockSystemc C s$ t �| jjd� t �| jjd� dS )zW Unlock the system directories, as if they were writable by this user. i� Nr� r1 r r r � unlockSystem� s z DeveloperSetupTests.unlockSystemc C s( ddl }tt�t|j��}dd� |D �S )zl Get all the plugins loadable from our dummy package, and return their short names. r Nc S s g | ] }|j �qS r �r )rN Zplugr r r rP � r z5DeveloperSetupTests.getAllPlugins.<locals>.<listcomp>)Zplugindummy.pluginsra r re r rV )r+ r� r� r r r r� � s z!DeveloperSetupTests.getAllPluginsc C s. | � � tj�dd� | j| j| jfD �� dS )zc Change the environment to what it should be just as the test is starting. c S s g | ] }|j �qS r r� r� r r r rP � r z8DeveloperSetupTests.resetEnvironment.<locals>.<listcomp>N)�unsetEnvironmentr r r� r� r� r� r1 r r r r� � s z$DeveloperSetupTests.resetEnvironmentc C s2 t � tj�� tj�| j� | jtjdd�< dS )zh Change the Python environment back to what it was before the test was started. N)r� r r r/ r0 r r� r r1 r r r r� � s z$DeveloperSetupTests.unsetEnvironmentc C s | � � | �� dS )z� Reset the Python environment to what it was before this test ran, and restore permissions on files which were marked read-only so that the directory may be cleanly cleaned up. N)r� r� r1 r r r r2 � s z DeveloperSetupTests.tearDownc C s2 t d�D ]$}| �� }|�� | �|ddg� qdS )a Plugins added in the development path should be loadable, even when the (now non-importable) system path contains its own idea of the list of plugins for a package. Inversely, plugins added in the system path should not be available. rv r� r� N)�ranger� �sortrS )r+ r� rh r r r �"test_developmentPluginAvailability� s z6DeveloperSetupTests.test_developmentPluginAvailabilityc C s� | j �d�}|�td�� t�� d }t�|j||f� |�d�}t dd�}t j | j jfddi|�� t�|j||f� |� � | � � | �d| �� � | �d | �� � | � � |�td �� | �d| �� � | �d | �� � d S ) z� Verify that if a stale .pyc file on the PYTHONPATH is replaced by a fresh .py file, the plugins in the new .py are picked up rather than the stale .pyc, even if the .pyc is still around. zstale.py�onei� z stale.pycT)�legacy�quietrx �twoN)r� r" r$ r� r� r; r� r r& �dict� compileall� compile_dirr< r� rT r� ro )r+ Zmypathr� Zpyc�extrar r r � test_freshPyReplacesStalePyc� s z0DeveloperSetupTests.test_freshPyReplacesStalePycc C s� | � � | j�d��td�� | �� tj�| j j� g }t |j � | � t |j � | �d| �� � d| jjtjf }|D ]}|t|�v rx q�qx| �d|f � dS )aF Verify that a failure to write the dropin.cache file on a read-only path will not affect the list of plugins returned. Note: this test should pass on both Linux and Windows, but may not provide useful coverage on Windows due to the different meaning of "read-only directory". z newstuff.pyr� r� r� N)r� r� r" r$ r� r� r r r< r� r r| r� r rT r� r� r> r� r r� )r+ r� r� r� r r r � test_newPluginsOnReadOnlyPath s( � ��z1DeveloperSetupTests.test_newPluginsOnReadOnlyPathN)r r r r r, r� r� r� r� r� r2 r� r� r� r r r r r� � s * r� c @ s8 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd S ) �AdjacentPackageTestsz� Tests for the behavior of the plugin system when there are multiple installed copies of the package containing the plugins being loaded. c C s t jdd� | _t j�� | _dS )zS Save the elements of C{sys.path} and the items of C{sys.modules}. N)r r r r r r r1 r r r r, J s zAdjacentPackageTests.setUpc C s, | j tjdd�< tj�� tj�| j� dS r- r. r1 r r r r2 Q s z AdjacentPackageTests.tearDownc C sn |� |�}|� d�}|�� |� d��d� |� d�}|�� |� d��t� |� |d �}|�t|�� |S )a` Create a directory containing a Python package named I{dummy} with a I{plugins} subpackage. @type root: L{FilePath} @param root: The directory in which to create the hierarchy. @type name: C{str} @param name: The name of the directory to create which will contain the package. @type pluginName: C{str} @param pluginName: The name of a module to create in the I{dummy.plugins} package. @rtype: L{FilePath} @return: The directory which was created to contain the I{dummy} package. �dummyr r rV r� )r" �makedirsr$ r� r� )r+ r rX Z pluginName� directoryr# rV r� r r r �createDummyPackageY s z'AdjacentPackageTests.createDummyPackagec C s� t | �� �}|�� | �|dd�}| �|dd�}tj�|j� tj�|j� ddl}tt � t |j ��}| � dgdd� |D �� dS )z� Only plugins from the first package in sys.path should be returned by getPlugins in the case where there are two Python packages by the same name installed, each with a plugin module by a single name. �firstZ someplugin�secondr Nc S s g | ] }|j �qS r r� rM r r r rP � r zWAdjacentPackageTests.test_hiddenPackageSamePluginModuleNameObscured.<locals>.<listcomp>�r r r� r� r r r| Z dummy.pluginsra r re r rV rS �r+ r ZfirstDirectoryZsecondDirectoryr� rV r r r �.test_hiddenPackageSamePluginModuleNameObscuredx s zCAdjacentPackageTests.test_hiddenPackageSamePluginModuleNameObscuredc C s� t | �� �}|�� | �|dd�}| �|dd�}tj�|j� tj�|j� ddl}tt � t |j ��}| � dgdd� |D �� dS ) z� Plugins from the first package in sys.path should be returned by getPlugins in the case where there are two Python packages by the same name installed, each with a plugin module by a different name. r� Z thispluginr� Z thatpluginr Nc S s g | ] }|j �qS r r� rM r r r rP � r z\AdjacentPackageTests.test_hiddenPackageDifferentPluginModuleNameObscured.<locals>.<listcomp>r� r� r r r �3test_hiddenPackageDifferentPluginModuleNameObscured� s zHAdjacentPackageTests.test_hiddenPackageDifferentPluginModuleNameObscuredN) r r r r r, r2 r� r� r� r r r r r� D s r� c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) �PackagePathTestszg Tests for L{plugin.pluginPackagePaths} which constructs search paths for plugin packages. c C s t jdd� | _dS )z3 Save the elements of C{sys.path}. N)r r r r1 r r r r, � s zPackagePathTests.setUpc C s | j tjdd�< dS )z< Restore C{sys.path} to its original value. N)r r r r1 r r r r2 � s zPackagePathTests.tearDownc C sT t d�}t d�}|j|jgt_| �t�d�|�d��d�j|�d��d�jg� dS )z� L{plugin.pluginPackagePaths} should return a list containing each directory in C{sys.path} with a suffix based on the supplied package name. �foo�bar� dummy.pluginsr� rV N)r r r rS r �pluginPackagePathsr" )r+ r� r� r r r �test_pluginDirectories� s ��z'PackagePathTests.test_pluginDirectoriesc C s� t | �� �}|�d��d��d�}|�� |�d��d� |�d�j|�d�jgt_| �t� d�|�d��d��d�jg� dS ) a� L{plugin.pluginPackagePaths} should exclude directories which are Python packages. The only allowed plugin package (the only one associated with a I{dummy} package which Python will allow to be imported) will already be known to the caller of L{plugin.pluginPackagePaths} and will most commonly already be in the C{__path__} they are about to mutate. r� r� rV r r r� r� N) r r r" r� r$ r r rS r r� )r+ r r� r r r �test_pluginPackagesExcluded� s �z,PackagePathTests.test_pluginPackagesExcludedN)r r r r r, r2 r� r� r r r r r� � s r� )"r r� r> rI r; r r� � importlibr r� �typingr Zzope.interfacer Ztwistedr Ztwisted.python.filepathr Ztwisted.python.logr r r Z twisted.trialr r r ZTestCaser r� r� r� r� r� r� r r r r �<module> s2 6 @]
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