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✏️ test_finalization.cpython-38.pyc
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U i�f�: � @ sB d Z ddlZddlZddlZddlZzddlmZ W n ek rP dd� ZY nX zddlmZ W n ek r~ dd� ZY nX dd l m Z G d d � d �Z G d d � d e �Z eG dd� de ��Z eG dd� de ��ZG dd� de �ZG dd� de �ZG dd� d�ZG dd� deej�ZG dd� d�ZG d d � d ee�ZG d d � d ee�ZG d d!� d!ee�ZG d"d#� d#eej�ZG d$d%� d%�ZG d&d'� d'ee�ZG d(d)� d)ee�ZG d*d+� d+ee�Z G d,d-� d-eej�Z G d.d/� d/e �Z eG d0d1� d1e ��Z eG d2d3� d3e ��Z eG d4d5� d5ee ��Z!e j"G d6d7� d7eej��Z#e$d8k�r>e�%� dS )9zB Tests for object finalization semantics, as outlined in PEP 442. � N)� with_tp_delc C s G dd� dt �}|S )Nc @ s e Zd Zdd� ZdS )zwith_tp_del.<locals>.Cc _ s t d��d S )Nz requires _testcapi.with_tp_del�� TypeError��cls�args�kwargs� r �;/opt/alt/python38/lib64/python3.8/test/test_finalization.py�__new__ s z with_tp_del.<locals>.C.__new__N��__name__� __module__� __qualname__r r r r r �C s r )�object�r r r r r r s r )� without_gcc C s G dd� d�}|S )Nc @ s e Zd Zdd� ZdS )zwithout_gc.<locals>.Cc _ s t d��d S )Nz requires _testcapi.without_gcr r r r r r s z without_gc.<locals>.C.__new__Nr r r r r r s r r r r r r r s r )�supportc @ s^ e Zd ZdZg Zg Zg Zg ZdZdZ e dd� �Z e e j dd� ��Zdd � Zd d � Zd d � ZdS )�NonGCSimpleBasezd The base class for all the objects under test, equipped with various testing features. Fr c C s> | j �� | j�� tj�� t�� | j�� | j�� d S �N)� survivors�clear�errors�gc�garbage�collect� del_calls� tp_del_calls�r r r r �_cleanup. s zNonGCSimpleBase._cleanupc c s^ t �� �L | j�� | j�� dt_zdV | jr<| jd �W 5 dt_| �� X W 5 Q R X dS )zI A context manager to use around all finalization tests. FTNr ) r Z disable_gcr r r r � _cleaningr r r r r r �test7 s zNonGCSimpleBase.testc C s dS )z8 Check the object is sane (non-broken). Nr ��selfr r r � check_sanityI s z NonGCSimpleBase.check_sanityc C s^ z*| j s(| j�t| �� | �� | �� W n. tk rX } z| j�|� W 5 d}~X Y nX dS )z� PEP 442 finalizer. Record that this was called, check the object is in a sane state, and invoke a side effect. N)r! r �append�idr% � side_effect� Exceptionr �r$ �er r r �__del__N s zNonGCSimpleBase.__del__c C s dS )z6 A side effect called on destruction. Nr r# r r r r( [ s zNonGCSimpleBase.side_effectN)r r r �__doc__r r r r r! � __slots__� classmethodr � contextlib�contextmanagerr" r% r, r( r r r r r s r c @ s e Zd Zdd� Zdd� ZdS )� SimpleBasec C s t | �| _d S r )r' �id_r# r r r �__init__c s zSimpleBase.__init__c C s | j t| �kst�d S r )r3 r' �AssertionErrorr# r r r r% f s zSimpleBase.check_sanityN)r r r r4 r% r r r r r2 a s r2 c @ s e Zd ZdZdS )�NonGCr N)r r r r. r r r r r6 j s r6 c @ s e Zd ZdZdd� ZdS )�NonGCResurrectorr c C s | j �| � dS �zF Resurrect self by storing self in a class-wide list. N�r r& r# r r r r( r s z NonGCResurrector.side_effectN)r r r r. r( r r r r r7 n s r7 c @ s e Zd ZdS )�SimpleN�r r r r r r r r: x s r: c @ s e Zd Zdd� ZdS )�SimpleResurrectorc C s | j �| � dS r8 r9 r# r r r r( ~ s z SimpleResurrector.side_effectN�r r r r( r r r r r< | s r< c @ sD e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dS )�TestBasec C s" t jd d � | _g t jd d �< d S r )r r � old_garbager# r r r �setUp� s zTestBase.setUpc C s& z| �tjg � W 5 | ` t�� X d S r )r? r r � assertEqualr r# r r r �tearDown� s zTestBase.tearDownc C s | � ttj�t|�� d S r )rA �sortedr2 r �r$ �idsr r r �assert_del_calls� s zTestBase.assert_del_callsc C s | � ttj�t|�� d S r )rA rC r2 r rD r r r �assert_tp_del_calls� s z TestBase.assert_tp_del_callsc C s$ | � tdd� tjD ��t|�� d S )Nc s s | ]}t |�V qd S r �r' ��.0�xr r r � <genexpr>� s z,TestBase.assert_survivors.<locals>.<genexpr>)rA rC r2 r rD r r r �assert_survivors� s zTestBase.assert_survivorsc C s$ | � tdd� tjD ��t|�� d S )Nc s s | ]}t |�V qd S r rH rI r r r rL � s z*TestBase.assert_garbage.<locals>.<genexpr>)rA rC r r rD r r r �assert_garbage� s zTestBase.assert_garbagec C s t j�� d S r )r2 r r r# r r r �clear_survivors� s zTestBase.clear_survivorsN) r r r r@ rB rF rG rM rN rO r r r r r> � s r> c @ s< e Zd ZdZdd� Zdd� Zejdd� �Zejdd � �Z d S ) �SimpleFinalizationTestz. Test finalization without refcycles. c C sz t �� �h t� }t|�g}t�|�}~t�� | �|� | � g � | � |� d � t�� | �|� | � g � W 5 Q R X d S r ) r2 r" r: r' �weakref�refr r rF rM �assertIs�r$ �srE �wrr r r � test_simple� s z"SimpleFinalizationTest.test_simplec C s� t �� �p t� }t|�g}t�|�}~t�� | �|� | � |� | � |� d � | � � t�� | �|� | � g � W 5 Q R X | � |� d � d S r ) r2 r" r< r' rQ rR r r rF rM � assertIsNotrO rS rT r r r �test_simple_resurrect� s z,SimpleFinalizationTest.test_simple_resurrectc C sr t �� �` t� }| �t�|�� t|�g}~t�� | �|� | � g � t�� | �|� | � g � W 5 Q R X d S r ) r2 r" r6 � assertFalser � is_trackedr' r rF rM �r$ rU rE r r r � test_non_gc� s z"SimpleFinalizationTest.test_non_gcc C s~ t �� �l t� }| �t�|�� t|�g}~t�� | �|� | � |� | � � t�� | �|d � | � |� W 5 Q R X d S �N� ) r2 r" r7 rZ r r[ r' r rF rM rO r\ r r r �test_non_gc_resurrect� s z,SimpleFinalizationTest.test_non_gc_resurrectN) r r r r- rW rY r � cpython_onlyr] r` r r r r rP � s rP c s( e Zd Z� fdd�Z� fdd�Z� ZS )� SelfCycleBasec s t � �� | | _d S r )�superr4 rR r# �� __class__r r r4 � s zSelfCycleBase.__init__c s t � �� | j| kst�d S r )rc r% rR r5 r# rd r r r% � s zSelfCycleBase.check_sanity)r r r r4 r% � __classcell__r r rd r rb � s rb c @ s e Zd ZdS )�SimpleSelfCycleNr; r r r r rg � s rg c @ s e Zd ZdS )�SelfCycleResurrectorNr; r r r r rh � s rh c @ s e Zd Zdd� ZdS )�SuicidalSelfCyclec C s d| _ dS )�7 Explicitly break the reference cycle. N)rR r# r r r r( � s z SuicidalSelfCycle.side_effectNr= r r r r ri � s ri c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �SelfCycleFinalizationTestzX Test finalization of an object having a single cyclic reference to itself. c C sz t �� �h t� }t|�g}t�|�}~t�� | �|� | � g � | � |� d � t�� | �|� | � g � W 5 Q R X d S r ) r2 r" rg r' rQ rR r r rF rM rS rT r r r rW s z%SelfCycleFinalizationTest.test_simplec C s� t �� �~ t� }t|�g}t�|�}~t�� | �|� | � |� | � |� d � | � � t�� | �|� | � g � | � |� d � W 5 Q R X d S r ) r2 r" rh r' rQ rR r r rF rM rS rO rT r r r rY s z/SelfCycleFinalizationTest.test_simple_resurrectc C s� t �� �v t� }t|�g}t�|�}~t�� | �|� | � g � | � |� d � t�� | �|� | � g � | � |� d � W 5 Q R X d S r ) r2 r" ri r' rQ rR r r rF rM rS rT r r r �test_simple_suicide% s z-SelfCycleFinalizationTest.test_simple_suicideN)r r r r- rW rY rl r r r r rk � s rk c s$ e Zd Zdd� Z� fdd�Z� ZS )� ChainedBasec C s d| _ || _| |_d S )NF��suicided�left�right)r$ rp r r r �chain9 s zChainedBase.chainc s� t � �� | jr.| jd ks t�| jd ks�t�nT| j}|jrJ|jd ksXt�n|j| ksXt�| j}|jrt|jd ks�t�n|j| ks�t�d S r )rc r% ro rp r5 rq )r$ rp rq rd r r r% > s zChainedBase.check_sanity)r r r rr r% rf r r rd r rm 7 s rm c @ s e Zd ZdS )� SimpleChainedNr; r r r r rs O s rs c @ s e Zd ZdS )�ChainedResurrectorNr; r r r r rt R s rt c @ s e Zd Zdd� ZdS )�SuicidalChainedc C s d| _ d| _d| _dS )rj TNrn r# r r r r( W s zSuicidalChained.side_effectNr= r r r r ru U s ru c @ sh e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z dd� Z dd� Z dd� ZdS )�CycleChainFinalizationTestz� Test finalization of a cyclic chain. These tests are similar in spirit to the self-cycle tests above, but the collectable object graph isn't trivial anymore. c C s: dd� |D �}t t|��D ]}|| �||d � q|S )Nc S s g | ] }|� �qS r r )rJ r r r r � <listcomp>h s z:CycleChainFinalizationTest.build_chain.<locals>.<listcomp>� )�range�lenrr )r$ �classes�nodes�ir r r � build_chaing s z&CycleChainFinalizationTest.build_chainc C s� t |�}t�� �x | �|�}dd� |D �}dd� |D �}~t�� | �|� | �g � | �dd� |D �d g| � t�� | �|� W 5 Q R X d S )Nc S s g | ] }t |��qS r rH �rJ rU r r r rw q s zKCycleChainFinalizationTest.check_non_resurrecting_chain.<locals>.<listcomp>c S s g | ]}t �|��qS r �rQ rR r r r r rw r s c S s g | ] }|� �qS r r �rJ rV r r r rw w s ) rz r2 r" r~ r r rF rM rA )r$ r{ �Nr| rE �wrsr r r � check_non_resurrecting_chainm s z7CycleChainFinalizationTest.check_non_resurrecting_chainc C s� t |�}t�� �� | �|�}t |�}dd� |D �}dd� |D �}dd� |D �}~t�� | �|� | �|� | �dd� |D �d g| � | � � t�� | �|� | �g � W 5 Q R X d S )Nc S s g | ] }t |��qS r rH r r r r rw � s zGCycleChainFinalizationTest.check_resurrecting_chain.<locals>.<listcomp>c S s g | ]}t |t�rt|��qS r )� isinstancer< r' r r r r rw � s c S s g | ]}t �|��qS r r� r r r r rw � s c S s g | ] }|� �qS r r r� r r r rw � s ) rz r2 r" r~ r r rF rM rA rO )r$ r{ r� r| rE Z survivor_idsr� r r r �check_resurrecting_chain{ s z3CycleChainFinalizationTest.check_resurrecting_chainc C s | � tgd � d S �N� )r� rs r# r r r �test_homogenous� s z*CycleChainFinalizationTest.test_homogenousc C s | � tgd � d S r� )r� rt r# r r r �test_homogenous_resurrect� s z4CycleChainFinalizationTest.test_homogenous_resurrectc C s | � tgd � d S r� )r� ru r# r r r �test_homogenous_suicidal� s z3CycleChainFinalizationTest.test_homogenous_suicidalc C s | � ttgd � d S r^ �r� ru rs r# r r r � test_heterogenous_suicidal_one� s z9CycleChainFinalizationTest.test_heterogenous_suicidal_onec C s | � tgd tgd � d S r^ r� r# r r r � test_heterogenous_suicidal_two� s �z9CycleChainFinalizationTest.test_heterogenous_suicidal_twoc C s | � ttgd � d S r^ )r� rt rs r# r r r � test_heterogenous_resurrect_one� s z:CycleChainFinalizationTest.test_heterogenous_resurrect_onec C s | � tttgd � d S r^ �r� rt rs ru r# r r r � test_heterogenous_resurrect_two� s �z:CycleChainFinalizationTest.test_heterogenous_resurrect_twoc C s( | � tgd tgd tgd � d S r^ r� r# r r r �!test_heterogenous_resurrect_three� s �z<CycleChainFinalizationTest.test_heterogenous_resurrect_threeN)r r r r- r~ r� r� r� r� r� r� r� r� r� r� r r r r rv ` s rv c @ s e Zd Zdd� Zdd� ZdS )� LegacyBasec C sV z"| j s | j�t| �� | �� W n. tk rP } z| j�|� W 5 d }~X Y nX d S r )r! r r& r' r% r) r r* r r r r, � s zLegacyBase.__del__c C s^ z*| j s(| j�t| �� | �� | �� W n. tk rX } z| j�|� W 5 d}~X Y nX dS )zJ Legacy (pre-PEP 442) finalizer, mapped to a tp_del slot. N)r! r r& r' r% r( r) r r* r r r � __tp_del__� s zLegacyBase.__tp_del__N)r r r r, r� r r r r r� � s r� c @ s e Zd ZdS )�LegacyNr; r r r r r� � s r� c @ s e Zd Zdd� ZdS )�LegacyResurrectorc C s | j �| � dS r8 r9 r# r r r r( � s z LegacyResurrector.side_effectNr= r r r r r� � s r� c @ s e Zd ZdS )�LegacySelfCycleNr; r r r r r� � s r� c s8 e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Z� ZS ) �LegacyFinalizationTestz5 Test finalization of objects with a tp_del. c s t j�� t �� t� �� d S r )r r r r rc rB r# rd r r rB � s z LegacyFinalizationTest.tearDownc C s� t �� �r t� }t|�g}t�|�}~t�� | �|� | � |� | � g � | � |� d � t�� | �|� | � |� W 5 Q R X d S r ) r2 r" r� r' rQ rR r r rF rG rM rS rT r r r � test_legacy� s z"LegacyFinalizationTest.test_legacyc C s� t �� �� t� }t|�g}t�|�}~t�� | �|� | � |� | � |� | � |� d � | � � t�� | �|� | � |d � | � |� W 5 Q R X | � |� d � d S r^ ) r2 r" r� r' rQ rR r r rF rG rM rS rO rT r r r �test_legacy_resurrect� s z,LegacyFinalizationTest.test_legacy_resurrectc C s� t �� �l t� }t|�g}t�|�}~t�� | �g � | � g � | � g � | � |� | � |� d � d tj d _W 5 Q R X | � g � | �|� d � d S )Nr )r2 r" r� r' rQ rR r r rF rG rM rN rX r rS rT r r r �test_legacy_self_cycle s z-LegacyFinalizationTest.test_legacy_self_cycle) r r r r- rB r� r� r� rf r r rd r r� � s r� �__main__)&r- r0 r ZunittestrQ Z _testcapir � ImportErrorr r" r r r2 r6 r7 r: r< r> ZTestCaserP rb rg rh ri rk rm rs rt ru rv r� r� r� r� ra r� r �mainr r r r �<module> sX B A : MA
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