U
    3d                     @   s   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
mZmZ d dlmZ dd Zdd	 Zd
d Zdd Zdd ZdddZdd Zdd ZdS )    N)comb)assert_array_almost_equal)_random_choice_cscsample_without_replacement)_our_rand_r_pyc                	   C   s&   t t tddd W 5 Q R X d S )N      unknown)pytestraises
ValueErrorr    r   r   C/tmp/pip-unpacked-wheel-zrfo1fqw/sklearn/utils/tests/test_random.py1test_invalid_sample_without_replacement_algorithm   s    r   c                     s8   d} | D ]* d fdd	}t | t| t| qd S )N)autoZtracking_selectionZreservoir_samplingpoolc                    s   t | | |dS )N)methodrandom_stater   )n_population	n_samplesr   mr   r   !sample_without_replacement_method   s       zUtest_sample_without_replacement_algorithms.<locals>.sample_without_replacement_method)N)check_edge_case_of_sample_intcheck_sample_intcheck_sample_int_distribution)methodsr   r   r   r   *test_sample_without_replacement_algorithms   s     r   c              	   C   s   t t | dd W 5 Q R X t t | dd W 5 Q R X | ddjdksTt| ddjdksht| ddjdks|t| ddjdkstt t | dd W 5 Q R X t t | dd W 5 Q R X d S )Nr         )r   )r   r   )r
   r   r   shapeAssertionErrorr   r   r   r   r   $   s    r   c                 C   sz   d}t |d D ]L}| ||}t||ks.tt|}t||ksJtt||k stqt| dddksvtd S )Nd   r   r   )rangelenr#   npuniquesizeall)r   r   r   sr(   r   r   r   r   <   s    

r   c                 C   sp   d}d}t |D ]Z}t||dd}i }t |D ]&}d |t| ||< t||kr. qq.tdt||f qd S )N
   '  T)exactz7number of combinations != number of expected (%s != %s))r%   r   	frozensetr&   r#   )r   r   Zn_trialsr   Z
n_expectedoutputir   r   r   r   N   s"    
r   r-      c                 C   s\  t ddgt dddgg}t ddgt dddgg}t| |||}t|sXttt|D ]6}t |	|
  t|  }t|| |dd qdddgddgg}t ddgt dddgg}t| ||d	}t|sttt|D ]6}t |	|
  t|  }t|| |dd qt ddgt dddgg}t d
dgt d
dd
gg}t| |||}t|sttt|D ]@}t j|	|
  t|| d|  }t|| |dd qdgdgg}t d
dgt dgg}t| ||d	}t|sttt|D ]4}t |	|
  |  }t|| |dd q"d S )Nr   r   r          ?333333?皙?333333?)decimal)r   classesr   g        g      ?)Z	minlength)r'   arrayr   spissparser#   r%   r&   ZbincountZgetcolZtoarrayZravelfloatr   )r   r   r8   class_probabilitiesgotkpr   r   r   test_random_choice_cscn   sT         
  rA   c               	   C   s  t ddgt ddddgg} t ddgt dddgg}tt td	| |d W 5 Q R X t d
dgt dddgg} t ddgt dddgg}tt td	| |d W 5 Q R X t ddgt dddgg} t ddgt dddgg}tt td	| |d W 5 Q R X t ddgt dddgg} t ddgt dddgg}tt td	| |d W 5 Q R X d S )Nr   r   r       r3   r4   r5   r6   r   a1z2g@g?g"@)r'   r9   r
   r   r   r   )r8   r=   r   r   r   test_random_choice_csc_errors   s      rG   c                   C   s$   dt dkstdt dks td S )Ni=(i=Ki!  r   )r   r#   r   r   r   r   test_our_rand_r   s    rH   )r-   r2   )Znumpyr'   r
   Zscipy.sparsesparser:   Zscipy.specialr   Znumpy.testingr   Zsklearn.utils.randomr   r   Zsklearn.utils._randomr   r   r   r   r   r   rA   rG   rH   r   r   r   r   <module>   s    
7