o
    h                     @   s  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g ddd Zejdeejdg ddd Zejdedd Zejdedd Zejdedd Zejded d! Zejded"d# Zejded$d% Zejd&g gg fd gd ggg fg d'g d(g d)gg d*fg d+g d,g d(gg d-fgd.d/ Zejd0g gg fd ggg fd1ggd gfd d1gd2d ggd1d gfg d'g d3g d4gg d5fgd6d7 Zejd0g gg fd ggg fd1ggd gfd d1gd2d ggd d1gfg d'g d3g d4gg d8fgd9d: Z dS );    N)assert_array_equal)
csr_matrix
csc_matrix)maximum_flow)_add_reverse_edges_make_edge_pointers_make_tailsedmonds_karpdinicc                  C   sb   t t" tddgddgg} t| dd t| dddd W d    d S 1 s*w   Y  d S Nr      r	   method)pytestraises	TypeErrornparrayr   graph r   _/var/www/html/scripts/venv/lib/python3.10/site-packages/scipy/sparse/csgraph/tests/test_flow.pytest_raises_on_dense_input   s
   "r   c                  C   s`   t t! tddgddgg} t| dd t| dddd W d    d S 1 s)w   Y  d S r   )r   r   r   r   r   r   r   r   r   test_raises_on_csc_input   
   "r   c                  C   sf   t t$ tddgddggtjd} t| dd t| dddd W d    d S 1 s,w   Y  d S )Nr   g      ?dtyper   r	   r   )r   r   
ValueErrorr   r   float64r   r   r   r   r   #test_raises_on_floating_point_input   s
   "r   c                  C   sP   t t tg dg dg} t| dd W d    d S 1 s!w   Y  d S )N)r   r      )r    r   r   r   r   r   r   r   r   r   r   r   r   r   test_raises_on_non_square_input"   s   "r"   c                  C   s`   t t! tddgddgg} t| dd t| dddd W d    d S 1 s)w   Y  d S r   r!   r   r   r   r   test_raises_when_source_is_sink(   r   r#   r   source)r       c                 C   sT   t t tddgddgg}t|| d|d W d    d S 1 s#w   Y  d S Nr   r   r   r!   )r$   r   r   r   r   r   (test_raises_when_source_is_out_of_bounds/      "r(   sinkc                 C   sT   t t tddgddgg}t|d| |d W d    d S 1 s#w   Y  d S r'   r!   )r*   r   r   r   r   r   &test_raises_when_sink_is_out_of_bounds7   r)   r+   c                 C   s\   t ddgddgg}t|dd| d}|jdksJ tddgddgg}t|j | d S )Nr      r   r   r   r   
flow_valuer   r   r   flowtoarrayr   r   resexpected_flowr   r   r   test_simple_graph?   s
   r5   c                 C   sh   t g dg dg dg}t|dd| d}|jdksJ tg dg d	g d
g}t|j | d S )N)r   r,   r   r   r   r&   r   r   r   r   r    r   r&   r   r&   r   )r   r&   )r   r9   r   r.   r2   r   r   r   test_bottle_neck_graphJ   s
   r:   c                 C   s   t g dg dg dg dg dg dg dg dg}t|dd	| d
}|jdks+J tg dg dg dg dg dg dg dg dg}t|j | d S )N)r   
   r   r   r;   r   r   r   )r   r   r;   r   r   r   r   r   )r   r   r   r;   r   r   r   r   )r   r   r   r   r   r   r   r;   )r   r   r   r;   r   r;   r   r   )r   r   r   r   r   r   r;   r   )r   r   r   r   r   r   r   r   r      r      )r   r;   r   r   r   r   r   )r   r>   r   r;   r   r   r   r   )r   r   r>   r   r   r   r   r;   )r>   r   r   r   r   r;   r   r   )r   r   r   r   r>   r   r;   r   )r   r   r   r   r   r>   r   r;   )r   r   r   r>   r   r   r>   r   r.   r2   r   r   r   test_backwards_flowU   s*   
r?   c              	   C   s   t g dg dg dg dg dg dg}t|dd| d	}|jd
ks%J tg dg dg dg dg dg dg}t|j | d S )N)r         r   r   r   )r   r   r;      r   r   )r      r   r      r   )r   r   	   r   r   r=   )r   r   r   r<   r   rC   )r   r   r   r   r   r   r   r,   r      )r   rB      r   r   r   )r   r   rB   r   r   )r   r   r   rG   r   )r   rH   r   r   i   )r   r   rI   r<   r   rC   )r   r   r   ir   r.   r2   r   r   r   #test_example_from_clrs_chapter_26_1p   s"   
rL   c                 C   sb   t g dg dg dg dg}t|dd| d}|jdksJ tjdtjd}t|j | d S )	N)r   r,   r   r   )r   r   r   r   )r   r   rE   r&   r   r&   r   )rC   rC   r   )	r   r   r/   r   zerosint32r   r0   r1   r2   r   r   r   test_disconnected_graph   s   rO   c                 C   s   d}t d|}t tt||d g }t j|d t jd}t|||f||fd}t|d|d | d}|j	dks<J ||
  }t|jj|j t|jj|j t|jj|j d S )Ni r   r   )shaper   r   )r   aranger   listrangeonesrN   r   r   r/   	transposer   r0   dataindicesindptr)r   nrW   rX   rV   r   r3   r4   r   r   r   "test_add_reverse_edges_large_graph   s   rZ   za,b_data_expected)r   r   r    r7   r8   )r   r    r   r   r&   )rE      r<   )rC   r,      )rE   r[   r<   rC   r,   r\   r   r   c                 C   s4   t | tjt| t| fd} t| }t|j| dS )zRTest that the reversal of the edges of the input graph works
    as expected.
    )r   rP   N)r   r   rN   lenr   r   rV   )ab_data_expectedbr   r   r   test_add_reverse_edges   s   	ra   z
a,expectedr   r;   r6   )rC   r,   r   )r   r&   rC   r   r    c                 C   $   t | tjd} t| }t|| d S Nr   )r   r   rN   r   r   )r^   expectedrev_edge_ptrr   r   r   test_make_edge_pointers      rf   )r   r   r   r    r    c                 C   rb   rc   )r   r   rN   r   r   )r^   rd   tailsr   r   r   test_make_tails   rg   ri   )!numpyr   numpy.testingr   r   scipy.sparser   r   scipy.sparse.csgraphr   scipy.sparse.csgraph._flowr   r   r   methodsr   r   r   r"   r#   markparametrizer(   r+   r5   r:   r?   rL   rO   rZ   ra   rf   ri   r   r   r   r   <module>   sj    








	


