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For example, @requires_mac_ver(10, 5) raises SkipTest if the OS X version is lesser than 10.5. c s" t �� �� �fdd��}�|_|S )Nc sx t jdkrnt�� d }yttt|�d���}W n tk rB Y n,X |�k rnd�tt ���}t � d||f ��� | |�S )Nr� r rz z&Mac OS X %s or higher required, not %s) rp rq Zmac_verrs r� r� r� r� r� rv rt ru )r� �kwr� r� r� )r� r� re rf �wrappera s z4requires_mac_ver.<locals>.decorator.<locals>.wrapper)� functools�wrapsr� )r� r� )r� )r� rf � decorator` s z#requires_mac_ver.<locals>.decoratorre )r� r� re )r� rf r$ Y s Z localhostz 127.0.0.1z::1c C s" t � | |�}t|�}|�� ~|S )a� Returns an unused port that should be suitable for binding. This is achieved by creating a temporary socket with the same family and type as the 'sock' parameter (default is AF_INET, SOCK_STREAM), and binding it to the specified host address (defaults to 0.0.0.0) with the port set to 0, eliciting an unused ephemeral port from the OS. The temporary socket is then closed and deleted, and the ephemeral port is returned. Either this method or bind_port() should be used for any tests where a server socket needs to be bound to a particular port for the duration of the test. Which one to use depends on whether the calling code is creating a python socket, or if an unused port needs to be provided in a constructor or passed to an external program (i.e. the -accept argument to openssl's s_server mode). Always prefer bind_port() over find_unused_port() where possible. Hard coded ports should *NEVER* be used. As soon as a server socket is bound to a hard coded port, the ability to run multiple instances of the test simultaneously on the same host is compromised, which makes the test a ticking time bomb in a buildbot environment. On Unix buildbots, this may simply manifest as a failed test, which can be recovered from without intervention in most cases, but on Windows, the entire python process can completely and utterly wedge, requiring someone to log in to the buildbot and manually kill the affected process. (This is easy to reproduce on Windows, unfortunately, and can be traced to the SO_REUSEADDR socket option having different semantics on Windows versus Unix/Linux. On Unix, you can't have two AF_INET SOCK_STREAM sockets bind, listen and then accept connections on identical host/ports. An EADDRINUSE OSError will be raised at some point (depending on the platform and the order bind and listen were called on each socket). However, on Windows, if SO_REUSEADDR is set on the sockets, no EADDRINUSE will ever be raised when attempting to bind two identical host/ports. When accept() is called on each socket, the second caller's process will steal the port from the first caller, leaving them both in an awkwardly wedged state where they'll no longer respond to any signals or graceful kills, and must be forcibly killed via OpenProcess()/TerminateProcess(). The solution on Windows is to use the SO_EXCLUSIVEADDRUSE socket option instead of SO_REUSEADDR, which effectively affords the same semantics as SO_REUSEADDR on Unix. Given the propensity of Unix developers in the Open Source world compared to Windows ones, this is a common mistake. A quick look over OpenSSL's 0.9.8g source shows that they use SO_REUSEADDR when openssl.exe is called with the 's_server' option, for example. See http://bugs.python.org/issue2550 for more info. The following site also has a very thorough description about the implications of both REUSEADDR and EXCLUSIVEADDRUSE on Windows: http://msdn2.microsoft.com/en-us/library/ms740621(VS.85).aspx) XXX: although this approach is a vast improvement on previous attempts to elicit unused ports, it rests heavily on the assumption that the ephemeral port returned to us by the OS won't immediately be dished back out to some other process when we close and delete our temporary socket but before our calling code has a chance to bind the returned port. We can deal with this issue if/when we come across it. )�socketrF �close)�familyZsocktypeZtempsock�portre re rf rE z s 8 c C s� | j tjkr�| jtjkr�ttd�r>| �tjtj�dkr>t d��ttd�r�dt j kr�y | �tjtj �dkrpt d��W n t k r� Y nX ttd�r�| �tjtjd� | �|df� | �� d }|S ) a% Bind the socket to a free port and return the port number. Relies on ephemeral ports in order to ensure we are using an unbound port. 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If 'dry_run' is false, it means the test doesn't support dummy runs when -M is not specified. c s �� �fdd����_ ��_�S )Nc s� �j }�j}tsd}n|}ts"� sDt|| k rDt�d|| d ��trztrzt� tdj|| d d�� t� }|� � nd }z �| |�S |r�|� � X d S )Ni z'not enough memory: %.1fG minimum neededi @z* ... expected peak memory use: {peak:.1f}G)Zpeak) r� �memuser� rt ru r r� r� r� r� r� )rW r� r� �maxsizeZwatchdog)�dry_runr� r� re rf r� � s* z.bigmemtest.<locals>.decorator.<locals>.wrapper)r� r� )r� )r� r� r� )r� r� rf r� � s z bigmemtest.<locals>.decoratorre )r� r� r� r� re )r� r� r� rf r2 � s !c s � fdd�}|S )z0Decorator for tests that fill the address space.c sD t tk r8tdkr$t dkr$t�d��q@t�dtd ��n� | �S d S )Nl ���� l z-not enough memory: try a 32-bit build insteadz'not enough memory: %.1fG minimum neededi @)r r� rt ru )rW )r� re rf r� s z!bigaddrspacetest.<locals>.wrapperre )r� r� re )r� rf r3 s c @ s e Zd Zdd� ZdS )r+ c C s t �� }||� |S )N)rt Z TestResult)rW r� r� re re rf �run s zBasicTestRunner.runN)ra rb rc r� re re re rf r+ s c C s | S )Nre )r� re re rf �_id s r� c C s: | dkrt � st�t j�S t| �r&tS t�d�| ��S d S )Nr� z resource {0!r} is not enabled)r� rt r� r� r r� r� )r� re re rf �requires_resource# s r� c C s t dd�| �S )z9 Decorator for tests only applicable on CPython. T)�cpython)� impl_detail)r� re re rf r4 + s c K sV t f |�rtS | d krLt|�\}}|r,d} nd} t|�� �}| �d�|��} t�| �S )Nz*implementation detail not available on {0}z%implementation detail specific to {0}z or ) r@ r� � _parse_guardsr5 r� r� r� rt r� )ry �guardsZ guardnames�defaultre re rf r� 1 s r� c C sH | sddidfS t | �� �d }t | �� �|gt| � ks>t�| | fS )Nr� TFr )r} �valuesr� r )r� Zis_truere re rf r� > s r� c K s t | �\} }| �t�� �� |�S )a5 This function returns True or False depending on the host platform. 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After that, any trace function is unset during the test to prevent unexpected refcounts caused by the trace function. )r r4 )r� re re rf � refcount_testc s r c C sR g }xB| j D ]8}t|tj�r2t||� |�|� q ||�r |�|� q W || _ dS )z>Recursively filter test cases in a suite based on a predicate.N)Z_testsr� rt � TestSuite� _filter_suiter� )�suiteZpredZnewtestsr� re re rf r n s r c C s� t tjttdk d�}|�| �}tdk r4t�|�� � |jsD|j sDt �|� � s�t |j �dkrp|jsp|j d d }n4t |j�dkr�|j s�|jd d }nd}ts�|d7 }t|��dS )z2Run tests from a unittest.TestSuite-derived class.N)� verbosityZcapture_outputr r zmultiple errors occurredz!; run in verbose mode for details)r rp r� r �junit_xml_listr� r� Zget_xml_elementZtestsRunZskippedr Z wasSuccessfulr� r� Zfailuresr )r Zrunnerr� r� re re rf � _run_suitez s" r c C s t d kr dS t | �� �S d S )NT)�_match_test_func�id)r� re re rf � match_test� s r c C s d| kot �d| � S )Nrz z[?*\[\]])rf �search)r� re re rf �_is_full_match_test� s r c s~ | d kr d} |d krd}d � �| t kr4t| �\} � |tkrHt|�\}�t| �a t|�a� d k sh�d k rz� �fdd�}|ad S )Nre c s* d}d}� r� | �}�r �| �}|o(| S )NTFre )�test_idZacceptrg )� accept_func� ignore_funcre rf �match_function� s z'set_match_tests.<locals>.match_function)�_accept_test_patterns�_compile_match_function�_ignore_test_patternsrs r )Zaccept_patternsZignore_patternsr re )r r rf �set_match_tests� s r c s^ | sd }d} nHt tt| ��r(t| �j}n.d�ttj| ��}t� |�j � � fdd�}|}| |fS )Nre �|c s$ � | �r dS t t� | �d���S d S )NTrz )�anyr� r� )r )� regex_matchre rf �match_test_regex� s z1_compile_match_function.<locals>.match_test_regex) �allr� r r� � __contains__r� �fnmatch� translaterf r? rg )Zpatternsr� Zregexr re )r rf r � s r c G s� t jt jf}t �� }xh| D ]`}t|t�rT|tjkrJ|�t �tj| �� qzt d��qt||�rj|�|� q|�t � |�� qW t |t � t |� dS )z1Run tests from unittest.TestCase-derived classes.z)str arguments must be keys in sys.modulesN)rt r ZTestCaser� rv rp r{ ZaddTestZ findTestCasesr� Z makeSuiter r r )�classesZ valid_typesr �clsre re rf r, � s c C s dS )z,Just used to check if docstrings are enabledNre re re re rf �_check_docstrings s r" ZWITH_DOC_STRINGSztest requires docstringsc C s` ddl }|dkrt}nd}|j| ||d�\}}|rBtd||f ��trXtd| j|f � ||fS )a Run doctest on the given module. 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Nz!wait_threads() failed to cleanup z threads after z.1fz seconds (count: z , old count: �)g{�G�z�?)r' r( r� � monotonicr r� ru )r� Z old_countZ start_timeZdeadliner. Zdtry re re rf �wait_threads_exit� s $ r4 c C s, | � |� | �� r(d|d�d�}t|��dS )zcJoin a thread. Raise an AssertionError if the thread is still alive after timeout seconds. z failed to join the thread in z.1fz secondsN)r� �is_aliver )r/ r� ry re re rf � join_thread� s r6 c C sp t td�rt td�sdS xRyt�dtj�\} }W n tk rF P Y nX | dkrRP td| tjd� daqW dS ) z�Use this function at the end of test_main() whenever sub-processes are started. 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FT)r� rI �matches)rW r r� �dre re rf rM \ s zTestHandler.matchesN)ra rb rc rX rJ rL rM re re re rf rK K s c @ s e Zd ZdZdd� Zdd� ZdS )rV )ry re c K s< d}x2|D ]*}|| }|� |�}| �|||�s d}P q W |S )a. Try to match a single dict with the supplied arguments. Keys whose values are strings and which are in self._partial_matches will be checked for partial (i.e. substring) matches. You can extend this scheme to (for example) do regular expression matching, etc. TF)rM � match_value)rW rN r r� r� r� �dvre re rf rM k s zMatcher.matchesc C sH t |�t |�krd}n.t |�tk s,|| jkr6||k}n|�|�dk}|S )zT Try to match a single stored value (dv) with a supplied value (v). Fr )r� rv �_partial_matches�find)rW r� rP r� r� re re rf rO | s zMatcher.match_valueN)ra rb rc rQ rM rO re re re rf rV g s c C sZ t d k r t S td } yt�t| � d}W n tttfk rF d}Y n X t�| � |a |S )Nr TF)� _can_symlinkr r� �symlinkr� �NotImplementedErrorr� rj )Z symlink_path�canre re rf r � s c C s t � }d}|r| S t�|�| �S )z8Skip decorator for tests that require functional symlinkz*Requires functional symlink implementation)r rt r� )r� �okry re re rf r. � s c C s� t d k r t S ttd�s d} n�t�� }tj|d�\}}z�ttd���}y`t�|dd� t�|dd� t�|� � dd� t � � }t � d |�}|d kp�t|�d ��d k} W n tk r� d} Y nX W d Q R X W d tt� t|� t|� X | a | S ) N�setxattrF)�dirr7 s user.testr� s trusted.foos 42z 2.6.(\d{1,2})r �' )� _can_xattrr� r� r r Zmkstempr. r rX r8 rq r� rf rg r� r� r� r r� )rV Ztmp_dirZtmp_fpZtmp_name�fpZkernel_versionr� re re rf � can_xattr� s, r] c C s t � }d}|r| S t�|�| �S )zDSkip decorator for tests that require functional extended attributesz(no non-broken extended attribute support)r] rt r� )r� rW ry re re rf r7 � s c C s� t td�st�d�| �S tdkr�td }t�tj��P}z>y|�|� daW n& tk rp } z|aW dd}~X Y nX W dt |� X W dQ R X tr�dt }t�|�| �S | S dS )zCDecorator for tests requiring a functional bind() for unix sockets.r zNo UNIX SocketsNZcan_bind_unix_socketFz%Requires a functional unix bind(): %s) r� r rt r� �_bind_nix_socket_errorr r r r� r )r� r� r r� ry re re rf r= � s c C s^ t j| d��H}|j}|�� }||kr,|�� }ytj�||�S tk rN dS X W dQ R X dS )zKDetects if the file system for the specified directory is case-insensitive.)rY FN) r ZNamedTemporaryFilerw �upperr� r� r� �samefiler� )Z directory�base� base_pathZ case_pathre re rf r � s )rg c C s> t t| ��t t|�� }|r(|t |�8 }t dd� |D ��}|S )a Returns the set of items in ref_api not in other_api, except for a defined list of items to be ignored in this check. By default this skips private attributes beginning with '_' but includes all magic methods, i.e. those starting and ending in '__'. c s s& | ] }|� d �r|�d�r|V qdS )�_�__N)rr �endswith)r3 r� re re rf � <genexpr>� s z&detect_api_mismatch.<locals>.<genexpr>)r� rY )Zref_apiZ other_apirg Z missing_itemsre re rf r; � s c C s� |dkr|j f}nt|t�r"|f}t|�}x^t|�D ]R}|�d�s4||krLq4t||�}t|dd�|ks|t|d�s4t|tj �s4|� |� q4W | � |j |� dS )a Assert that the __all__ variable of 'module' contains all public names. The module's public names (its API) are detected automatically based on whether they match the public name convention and were defined in 'module'. The 'name_of_module' argument can specify (as a string or tuple thereof) what module(s) an API could be defined in in order to be detected as a public API. One case for this is when 'module' imports part of its public API from other modules, possibly a C backend (like 'csv' and its '_csv'). 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