U
    »mœd—  ã                   @   s²   d Z ddlZddlZddlmZ ddlmZ ddlmZ ddl	Z
ddlmZmZ ddlmZ ddlmZmZmZmZmZmZ ed	d
„ ƒZdd„ Zdd„ Zdd„ ZG dd„ dƒZdS )z
 Testing

é    N)ÚBytesIO)Úmkstemp)Úcontextmanager)Úassert_Úassert_equal)Úraises)Úmake_streamÚGenericStreamÚZlibInputStreamÚ
_read_intoÚ_read_stringÚ
BLOCK_SIZEc               	   c   sp   d} t ƒ \}}t |d¡�}| | ¡ W 5 Q R X t|dƒ�"}t| ƒ}t| ƒ}|||fV  W 5 Q R X t |¡ d S )Nó   a stringÚwbÚrb)r   ÚosÚfdopenÚwriteÚopenr   Úunlink)ÚvalÚfdÚfnameÚfsÚgsÚcs© r   ú[/home/sam/Atlas/atlas_env/lib/python3.8/site-packages/scipy/io/matlab/tests/test_streams.pyÚsetup_test_file   s    
r   c               	   C   s.   t ƒ �\} }}ttt|ƒtƒƒ W 5 Q R X d S )N)r   r   Ú
isinstancer   r	   )r   r   r   r   r   r   Útest_make_stream&   s    r    c               	   C   sÀ   t ƒ �°\} }}| ||fD ]˜}t|ƒ}| d¡}t|dƒ t| ¡ dƒ | d¡}t|dƒ t| ¡ dƒ | dd¡}t|dƒ t| ¡ dƒ | dd¡}t|dƒ t| ¡ dƒ qW 5 Q R X d S )Nr   é   é   é   é   éþÿÿÿé   )r   r   Úseekr   Útell©r   r   r   ÚsÚstÚresr   r   r   Útest_tell_seek,   s    





r-   c               	   C   sð   t ƒ �à\} }}| ||fD ]È}t|ƒ}| d¡ | d¡}t|dƒ | d¡ | d¡}t|dƒ | d¡ t|dƒ}t|dƒ t|dƒ}t|dƒ ttt|dƒ | d¡ t|dƒ}t|dƒ t|dƒ}t|dƒ ttt|dƒ qW 5 Q R X d S )Nr   éÿÿÿÿr   é   s   a sts   ringr"   )	r   r   r'   Úreadr   r   Úassert_raisesÚOSErrorr   r)   r   r   r   Ú	test_read>   s*    















r3   c                   @   sT   e Zd Zdd„ Zdd„ Zdd„ Zdd„ Zd	d
„ Zdd„ Zdd„ Z	dd„ Z
dd„ ZdS )ÚTestZlibInputStreamc                 C   s<   t j dd|¡ t j¡ ¡ }t |¡}t|ƒ}|t	|ƒ|fS )Nr   é   )
ÚnpÚrandomÚrandintÚastypeÚuint8ÚtobytesÚzlibÚcompressr   Úlen)ÚselfÚsizeÚdataÚcompressed_dataÚstreamr   r   r   Ú	_get_dataY   s    
zTestZlibInputStream._get_datac              	      sn   dddt d t d t t d dt  d g}t d t d t t d g}‡ fdd„}|D ]}|D ]}|||ƒ qXqPd S )Nr   r#   é
   r"   c           	         s`   ˆ   | ¡\}}}t||ƒ}d}d}| t|| | ƒ¡}|s<qR|t|ƒ7 }||7 }q"t||ƒ d S )Nó    r   )rD   r
   r0   Úminr>   r   )	r@   Ú	read_sizeÚcompressed_streamÚcompressed_data_lenrA   rC   Zdata2Zso_farÚblock©r?   r   r   Úcheckf   s    
ÿ
z,TestZlibInputStream.test_read.<locals>.check)r   )r?   ZSIZESZ
READ_SIZESrM   r@   rH   r   rL   r   r3   _   s      
ÿ ÿzTestZlibInputStream.test_readc                 C   sv   d}t j dd|¡ t j¡ ¡ }t |¡}t|d ƒ}t	|t
|ƒƒ}| t
|ƒ¡ t| ¡ t
|ƒƒ tt|jdƒ d S )NiÒ  r   r5   s   abbacacar#   )r6   r7   r8   r9   r:   r;   r<   r=   r   r
   r>   r0   r   r(   r1   r2   )r?   r@   rA   rB   rI   rC   r   r   r   Útest_read_max_lengthx   s    
z(TestZlibInputStream.test_read_max_lengthc                 C   sv   t j ddd¡ t j¡ ¡ }t |¡}|d d… t|d d d@ gƒ }t	|ƒ}t
|t|ƒƒ}ttj|jt|ƒƒ d S ©Nr   r5   rE   r.   r#   éÿ   )r6   r7   r8   r9   r:   r;   r<   r=   Úbytesr   r
   r>   r1   Úerrorr0   ©r?   rA   rB   rI   rC   r   r   r   Útest_read_bad_checksum„   s    
"z*TestZlibInputStream.test_read_bad_checksumc           	      C   s   |   d¡\}}}t||ƒ}| d¡ d}t| ¡ |ƒ | d¡}t||||d … ƒ | dd¡ d}t| ¡ |ƒ | d¡}t||||d … ƒ | dd	¡ d}t| ¡ |ƒ | d¡}t||||d … ƒ tt|jd
dƒ tt|jddƒ tt|jddƒ | dd¡ tt|jdƒ d S )Né   é{   é   iA  r#   iÇ  é   i�  r   rE   r"   r.   i'  é   )	rD   r
   r'   r   r(   r0   r1   r2   Ú
ValueError)	r?   rI   rJ   rA   rC   ÚpZd1Zd2Zd3r   r   r   Ú	test_seek�   s,    




zTestZlibInputStream.test_seekc                 C   sv   t j ddd¡ t j¡ ¡ }t |¡}|d d… t|d d d@ gƒ }t	|ƒ}t
|t|ƒƒ}ttj|jt|ƒƒ d S rO   )r6   r7   r8   r9   r:   r;   r<   r=   rQ   r   r
   r>   r1   rR   r'   rS   r   r   r   Útest_seek_bad_checksum®   s    
"z*TestZlibInputStream.test_seek_bad_checksumc                 C   sZ   |   d¡\}}}t||ƒ}t| ¡  ƒ | d¡ t| ¡  ƒ | d¡ t| ¡ ƒ d S )NrU   i   )rD   r
   r   Úall_data_readr'   )r?   rI   rJ   rA   rC   r   r   r   Útest_all_data_readº   s    


z&TestZlibInputStream.test_all_data_readc                 C   s|   d}t  d¡ t j¡ ¡ }t ||¡}t|ƒ}t|t	d kƒ t
|ƒ}t||ƒ}t| ¡  ƒ | t|ƒ¡ t| ¡ ƒ d S )Nr&   éøSr"   )r6   Úaranger9   r:   r;   r<   r=   r>   r   r   r   r
   r^   r'   ©r?   ZCOMPRESSION_LEVELrA   rB   rJ   rI   rC   r   r   r   Útest_all_data_read_overlapÃ   s    
z.TestZlibInputStream.test_all_data_read_overlapc                 C   s    d}t  d¡ t j¡ ¡ }t ||¡}t|ƒ}t|t	d kƒ |d d… t
|d d d@ gƒ }t|ƒ}t||ƒ}t| ¡  ƒ | t|ƒ¡ ttj|jƒ d S )Nr&   r`   r"   r.   r#   rP   )r6   ra   r9   r:   r;   r<   r=   r>   r   r   rQ   r   r
   r^   r'   r1   rR   rb   r   r   r   Útest_all_data_read_bad_checksumÓ   s    "
z3TestZlibInputStream.test_all_data_read_bad_checksumN)Ú__name__Ú
__module__Ú__qualname__rD   r3   rN   rT   r\   r]   r_   rc   rd   r   r   r   r   r4   X   s   	r4   )Ú__doc__r   r<   Úior   Útempfiler   Ú
contextlibr   Únumpyr6   Znumpy.testingr   r   Zpytestr   r1   Zscipy.io.matlab._streamsr   r	   r
   r   r   r   r   r    r-   r3   r4   r   r   r   r   Ú<module>   s    
