U
    »mœdÄ  ã                   @   sÆ  d dl 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 ddgZdd	„ Zd
d„ Zdd„ Zdd„ Zdd„ Zej de¡ej ddddg¡dd„ ƒƒZej de¡ej ddddg¡dd„ ƒƒZej de¡dd„ ƒZej de¡dd„ ƒZej de¡d d!„ ƒZej de¡d"d#„ ƒZej de¡d$d%„ ƒZej de¡d&d'„ ƒZd(d)„ Zej d*g gg fd gd ggg fd+d dgd d d gd dd ggd+dd d dgfd,d-d.gd/d0d1gd d d ggd,d-d.d/d0d1d d gfg¡d2d3„ ƒZej d4g gg fd ggg fd+ggd gfd d+gd5d ggd+d gfd+d dgd d dgd/d0d ggd dd/d+dgfg¡d6d7„ ƒZ ej d4g gg fd ggg fd+ggd gfd d+gd5d ggd d+gfd+d dgd d dgd/d0d ggd d d+ddgfg¡d8d9„ ƒZ!dS ):é    N)Úassert_array_equal)Ú
csr_matrixÚ
csc_matrix)Úmaximum_flow)Ú_add_reverse_edgesÚ_make_edge_pointersÚ_make_tailsÚedmonds_karpZdinicc               	   C   sL   t  t¡�8 t ddgddgg¡} t| ddƒ t| dddd� W 5 Q R X d S ©Nr   é   r	   ©Úmethod)ÚpytestÚraisesÚ	TypeErrorÚnpÚarrayr   ©Úgraph© r   ú]/home/sam/Atlas/atlas_env/lib/python3.8/site-packages/scipy/sparse/csgraph/tests/test_flow.pyÚtest_raises_on_dense_input   s    r   c               	   C   sJ   t  t¡�6 tddgddggƒ} t| ddƒ t| dddd� W 5 Q R X d S r
   )r   r   r   r   r   r   r   r   r   Útest_raises_on_csc_input   s    r   c               	   C   sP   t  t¡�< tddgddggtjd�} t| ddƒ t| dddd� W 5 Q R X d S )Nr   g      ø?©Údtyper   r	   r   )r   r   Ú
ValueErrorr   r   Zfloat64r   r   r   r   r   Ú#test_raises_on_floating_point_input   s    r   c               	   C   s>   t  t¡�* tdddgdddggƒ} t| ddƒ W 5 Q R X d S )Nr   r   é   ©r   r   r   r   r   r   r   r   r   Útest_raises_on_non_square_input"   s    r   c               	   C   sJ   t  t¡�6 tddgddggƒ} t| ddƒ t| dddd� W 5 Q R X d S r
   r   r   r   r   r   Útest_raises_when_source_is_sink(   s    r    r   Úsourceéÿÿÿÿr   é   c              	   C   s>   t  t¡�* tddgddggƒ}t|| d|d� W 5 Q R X d S ©Nr   r   r   r   )r!   r   r   r   r   r   Ú(test_raises_when_source_is_out_of_bounds/   s    r%   Úsinkc              	   C   s>   t  t¡�* tddgddggƒ}t|d| |d� W 5 Q R X d S r$   r   )r&   r   r   r   r   r   Ú&test_raises_when_sink_is_out_of_bounds7   s    r'   c                 C   s\   t ddgddggƒ}t|dd| d�}|jdks2t‚t ddgddgg¡}t|j ¡ |ƒ d S )Nr   é   r   r   éûÿÿÿ©	r   r   Ú
flow_valueÚAssertionErrorr   r   r   ÚflowÚtoarray©r   r   ÚresÚexpected_flowr   r   r   Útest_simple_graph?   s
    r2   c                 C   st   t dddgdddgdddggƒ}t|dd| d�}|jdks>t‚t dddgdddgdddgg¡}t|j ¡ |ƒ d S )Nr   r(   r#   r   r   éýÿÿÿr*   r/   r   r   r   Útest_bottle_neck_graphJ   s
     "r4   c                 C   sd  t ddddddddgddddddddgddddddddgddddddddgddddddddgddddddddgddddddddgddddddddggƒ}t|dd| d�}|jdks¶t‚t ddddddddgddddddddgddddddddgddddddddgddddddddgddddddddgddddddddgddddddddgg¡}t|j ¡ |ƒ d S )Nr   é
   é   r   é   iöÿÿÿr*   r/   r   r   r   Útest_backwards_flowU   s*    ùùr8   c                 C   sì   t ddddddgddddddgddddddgdddddd	gdddd
ddgddddddggƒ}t|dd| d�}|jdkszt‚t ddddddgddddddgddddddgddddddgdddd
ddgddddddgg¡}t|j ¡ |ƒ d S )Nr   é   é   r5   é   é   é   é	   r7   r6   r(   r   é   é   iôÿÿÿiõÿÿÿiùÿÿÿé   iíÿÿÿéüÿÿÿr*   r/   r   r   r   Ú#test_example_from_clrs_chapter_26_1p   s"    ûûrC   c                 C   sr   t ddddgddddgddddgddddggƒ}t|dd| d�}|jdksNt‚tjdtjd�}t|j 	¡ |ƒ d S )Nr   r(   r>   r#   r   )r<   r<   r   )
r   r   r+   r,   r   ZzerosÚint32r   r-   r.   r/   r   r   r   Útest_disconnected_graph†   s    


ýrE   c                 C   s¸   d}t  d|¡}t  tt|ƒƒ|d g ¡}t j|d t jd�}t|||f||fd�}t|d|d | d�}|j	dksxt
‚|| ¡  }t|jj|jƒ t|jj|jƒ t|jj|jƒ d S )Ni † r   r   )Úshaper   r   )r   Zaranger   ÚlistÚrangeZonesrD   r   r   r+   r,   Z	transposer   r-   ÚdataÚindicesÚindptr)r   ÚnrJ   rK   rI   r   r0   r1   r   r   r   Ú"test_add_reverse_edges_large_graph”   s    rM   c               	   C   sJ   t dddgdddgdddggƒ} t| ddƒ}t ¡ � |j W 5 Q R X d S )Nr   r(   r#   r   )r   r   r   Zdeprecated_callZresidual)r   r0   r   r   r   Ú(test_residual_raises_deprecation_warning¤   s     
rN   za,b_data_expectedr   r>   é   r6   r<   r(   é   c                 C   s4   t | tjt| ƒt| ƒfd�} t| ƒ}t|j|ƒ dS )zRTest that the reversal of the edges of the input graph works
    as expected.
    )r   rF   N)r   r   rD   Úlenr   r   rI   )ÚaZb_data_expectedÚbr   r   r   Útest_add_reverse_edges«   s    	rT   z
a,expectedr5   c                 C   s$   t | tjd�} t| ƒ}t||ƒ d S ©Nr   )r   r   rD   r   r   )rR   ÚexpectedZrev_edge_ptrr   r   r   Útest_make_edge_pointers¹   s    rW   c                 C   s$   t | tjd�} t| ƒ}t||ƒ d S rU   )r   r   rD   r   r   )rR   rV   Útailsr   r   r   Útest_make_tailsÆ   s    rY   )"Únumpyr   Znumpy.testingr   r   Zscipy.sparser   r   Zscipy.sparse.csgraphr   Zscipy.sparse.csgraph._flowr   r   r   Úmethodsr   r   r   r   r    ÚmarkZparametrizer%   r'   r2   r4   r8   rC   rE   rM   rN   rT   rW   rY   r   r   r   r   Ú<module>   sj   







(.ü
	
(û

(û