U
    Ã;rc_  ã                   @   s´   d Z ddlmZmZ ddlmZ dZdZdZdZ	dZ
dZee	e e e e
  Zedks\t‚dd	„ Zd
d„ Zddd„Zdd„ Zdd„ Zdd„ Zdd„ ZeddƒZdd„ Zdd„ ZdS )zVarious utility functions.é    )Ú
namedtupleÚCounter)ÚcommonprefixTéP   é   é   c                 C   sB   t | ƒ| | }|tkr>d| d |… || t | ƒ| d … f } | S )Nz%s[%d chars]%s)ÚlenÚ_PLACEHOLDER_LEN)ÚsÚ	prefixlenZ	suffixlenÚskip© r   ú#/usr/lib/python3.8/unittest/util.pyÚ_shorten   s    &r   c                     s¸   t tt| ƒƒ} ttt| ƒƒ}|tkr(| S t| ƒ‰ tˆ ƒ‰t|ˆ t t  }|t	kr”tt t	 |ˆ  tk spt
‚tˆ t|ƒ‰ t ‡ ‡fdd„| D ƒƒS tˆ tt	ƒ‰ t ‡ ‡fdd„| D ƒƒS )Nc                 3   s   | ]}ˆ |ˆd …  V  qd S ©Nr   ©Ú.0r
   ©Úprefixr   r   r   Ú	<genexpr>'   s     z'_common_shorten_repr.<locals>.<genexpr>c                 3   s&   | ]}ˆ t |ˆd … ttƒ V  qd S r   )r   Ú_MIN_DIFF_LENÚ_MIN_END_LENr   r   r   r   r   *   s   ÿ)ÚtupleÚmapÚ	safe_reprÚmaxr   Ú_MAX_LENGTHr   Ú_MIN_BEGIN_LENr	   Ú_MIN_COMMON_LENÚAssertionErrorr   )ÚargsÚmaxlenZ
common_lenr   r   r   Ú_common_shorten_repr   s*    ÿ
ÿÿÿr"   Fc                 C   sP   zt | ƒ}W n tk
r*   t | ¡}Y nX |r<t|ƒtk r@|S |d t… d S )Nz [truncated]...)ÚreprÚ	ExceptionÚobjectÚ__repr__r   r   )ÚobjZshortÚresultr   r   r   r   -   s    r   c                 C   s   d| j | jf S )Nz%s.%s)Ú
__module__Ú__qualname__)Úclsr   r   r   Ústrclass6   s    r,   c                 C   s  d }}g }g }z¼| | }|| }||k rT|  |¡ |d7 }| | |krÊ|d7 }q<nv||kr†|  |¡ |d7 }|| |krÊ|d7 }qnnD|d7 }z| | |kr¦|d7 }qW 5 |d7 }|| |krÈ|d7 }q²X W q tk
r   | | |d… ¡ | ||d… ¡ Y qY qX q||fS )ar  Finds elements in only one or the other of two, sorted input lists.

    Returns a two-element tuple of lists.    The first list contains those
    elements in the "expected" list but not in the "actual" list, and the
    second contains those elements in the "actual" list but not in the
    "expected" list.    Duplicate elements in either input list are ignored.
    r   é   N)ÚappendÚ
IndexErrorÚextend)ÚexpectedÚactualÚiÚjÚmissingZ
unexpectedÚeÚar   r   r   Úsorted_list_difference9   s8    

r8   c                 C   sH   g }| r@|   ¡ }z| |¡ W q tk
r<   | |¡ Y qX q||fS )z­Same behavior as sorted_list_difference but
    for lists of unorderable items (like dicts).

    As it does a linear search per item (remove) it
    has O(n*n) performance.)ÚpopÚremoveÚ
ValueErrorr.   )r1   r2   r5   Úitemr   r   r   Úunorderable_list_differenceb   s    r=   c                 C   s   | |k| |k  S )z.Return -1 if x < y, 0 if x == y and 1 if x > yr   )ÚxÚyr   r   r   Úthree_way_cmps   s    r@   ZMismatchzactual expected valuec                 C   s,  t | ƒt |ƒ }}t|ƒt|ƒ }}tƒ }g }t|ƒD ]Ž\}}	|	|krHq6d }
}t||ƒD ] }|| |	krZ|
d7 }
|||< qZt|ƒD ] \}}||	kr„|d7 }|||< q„|
|kr6t|
||	ƒ}| |¡ q6t|ƒD ]X\}}	|	|kràqÎd}t||ƒD ] }|| |	krî|d7 }|||< qîtd||	ƒ}| |¡ qÎ|S )úHReturns list of (cnt_act, cnt_exp, elem) triples where the counts differr   r-   )Úlistr   r%   Ú	enumerateÚrangeÚ	_Mismatchr.   )r2   r1   r
   ÚtÚmÚnZNULLr(   r3   ÚelemÚcnt_sÚcnt_tr4   Z
other_elemÚdiffr   r   r   Ú_count_diff_all_purposey   s<    


rM   c           	      C   s†   t | ƒt |ƒ }}g }| ¡ D ]2\}}| |d¡}||krt|||ƒ}| |¡ q| ¡ D ]&\}}||krZtd||ƒ}| |¡ qZ|S )rA   r   )r   ÚitemsÚgetrE   r.   )	r2   r1   r
   rF   r(   rI   rJ   rK   rL   r   r   r   Ú_count_diff_hashableœ   s    rP   N)F)Ú__doc__Úcollectionsr   r   Úos.pathr   Z
__unittestr   r	   r   r   r   r   r   r   r"   r   r,   r8   r=   r@   rE   rM   rP   r   r   r   r   Ú<module>   s4   
ÿÿÿ
	)
#