U
    f                     @   s   d Z ddlmZ ddlmZ ddlmZ ddlZddlZddlZddlm	Z	 G dd dej
Z
ee
d	svee
d	e
j d
d Zdd ZdS )zUseful stuff for tests.    )absolute_import)division)print_functionN)zipc                   @   s   e Zd Zdd ZdS )TestCasec              
   C   sz  |dkr|dkrdS z|  | |  | tt|t|D ]\}}| t|t| t| jD ]}t||d}t||d}t|t	rt||D ]\}}	| 
||	 qqjt|tjst|tjrt|tjtjtjfs*t|tjtjtjfs*|  | |  | | 
|| qj| || qjqBW nD tk
rt }
 z$| dt|t||
f  W 5 d}
~
X Y nX dS )ziCompares two ASTs and fails if there are differences.

    Ignores `ctx` fields and formatting info.
    NzASTs differ:
%s
  !=
%s

%s)ZassertIsNotNoner   astwalkassertEqualtype_fieldsgetattr
isinstancelistcheckAstsEqualASTLoadStoreParamAssertionErrorZfaildump)selfabZnode_aZnode_bfieldZa_valZb_valZitem_aZitem_bZae r   </tmp/pip-target-lpfmz8o1/lib/python/pasta/base/test_utils.pyr      s6    




  zTestCase.checkAstsEqualN)__name__
__module____qualname__r   r   r   r   r   r      s   r   ZassertItemsEqualc                  G   s(   t tdd | D ddd | D  S )Nc                 s   s   | ]}t | V  qd S )Nsupports_feature).0featurer   r   r   	<genexpr>D   s     z$requires_features.<locals>.<genexpr>zMTests features which are not supported by this version of python. Missing: %rc                 S   s   g | ]}t |s|qS r   r   )r!   fr   r   r   
<listcomp>F   s      z%requires_features.<locals>.<listcomp>)unittestZskipIfany)featuresr   r   r   requires_featuresB   s    r)   c                 C   s   | dkr t tdottjtjS | dkr@t tdo>ttjtjS | dkrrztd W n tk
rl   Y dS X dS | d	krt td
ottjtjS | dkrt	j
d dk S dS )NZ
bytes_nodeBytesZ	exec_nodeExecZtype_annotationsz#def foo(bar: str=123) -> None: passFTZfstring	JoinedStrZmixed_tabs_spacesr      )hasattrr   
issubclassr*   r   r+   parseSyntaxErrorr,   sysversion_info)r"   r   r   r   r    I   s    r    )__doc__
__future__r   r   r   r   r2   r&   Z	six.movesr   r   r.   setattrassertCountEqualr)   r    r   r   r   r   <module>   s   "
