U
    »mœd|  ã                   @   sj   d dl Z d dlZd dlmZmZ d dlmZmZ d dl	m
Z
 dd„ Ze jdd�d	d
„ ƒZG dd„ dƒZdS )é    N)Úassert_equalÚassert_allclose©Úlog_ndtrÚ	ndtri_exp)Úassert_func_equalc                 C   s   t t| ƒƒS ©Nr   ©Úy© r   ú[/home/sam/Atlas/atlas_env/lib/python3.8/site-packages/scipy/special/tests/test_ndtri_exp.pyÚlog_ndtr_ndtri_exp   s    r   Úclass)Úscopec                  C   s   t j d¡} |  d¡}|S )NiÒ  iè  )ÚnpÚrandomZRandomStateZrandom_sample)Zrandom_stateÚpointsr   r   r   Úuniform_random_points   s    
r   c                
   @   sp   e Zd ZdZej ddddde e	¡j
 g¡dd„ ƒZej d	d
dddg¡dd„ ƒZdd„ Zdd„ Zdd„ ZdS )ÚTestNdtriExpaè  Tests that ndtri_exp is sufficiently close to an inverse of log_ndtr.

    We have separate tests for the five intervals (-inf, -10),
    [-10, -2), [-2, -0.14542), [-0.14542, -1e-6), and [-1e-6, 0).
    ndtri_exp(y) is computed in three different ways depending on if y
    is in (-inf, -2), [-2, log(1 - exp(-2))], or [log(1 - exp(-2), 0).
    Each of these intervals is given its own test with two additional tests
    for handling very small values and values very close to zero.
    Ú
test_inputg      $Àg      YÀg    _ Âg@Œµx¯Äc                 C   s.   |}|d| d  }t tdd„ |ddd� d S )Ng      à?c                 S   s   | S r   r   r	   r   r   r   Ú<lambda>&   ó    z2TestNdtriExp.test_very_small_arg.<locals>.<lambda>ç›+¡†›„=T©ÚrtolZnan_ok©r   r   )Úselfr   r   Úscaler   r   r   r   Útest_very_small_arg   s     üz TestNdtriExp.test_very_small_argzinterval,expected_rtol))iöÿÿÿéþÿÿÿr   ))r   çÌ—`�Â¿çê-�™—q=))r    ç�íµ ÷Æ°¾g»½×Ùß|Û=))r"   r   g�íµ ÷Æ°>c                 C   s2   |\}}|| | | }t tdd„ ||dd� d S )Nc                 S   s   | S r   r   r	   r   r   r   r   9   r   z/TestNdtriExp.test_in_interval.<locals>.<lambda>Tr   r   )r   ÚintervalZexpected_rtolr   ÚleftÚrightr   r   r   r   Útest_in_interval+   s    
 üzTestNdtriExp.test_in_intervalc                 C   sT   t j t  t¡jddddg¡}t  t¡j }t  ||g¡}t|ƒ}t	||dd� d S )Nr   r!   )r   )
r   Z	nextafterÚreduceÚfinfoÚfloatÚminZtinyÚarrayr   r   )r   ZbignegZtinynegÚxÚresultr   r   r   Útest_extreme>   s
    zTestNdtriExp.test_extremec                 C   s$   t ttj dgƒtj tjgƒ d S )Ng        )r   r   r   Úinf©r   r   r   r   Útest_asymptotesZ   s    zTestNdtriExp.test_asymptotesc                 C   s   t  tdƒ¡st‚d S )Ng      ð?)r   Úisnanr   ÚAssertionErrorr0   r   r   r   Útest_outside_domain]   s    z TestNdtriExp.test_outside_domainN)Ú__name__Ú
__module__Ú__qualname__Ú__doc__ÚpytestÚmarkZparametrizer   r(   r)   Úmaxr   r&   r.   r1   r4   r   r   r   r   r      s$   
 ÿ

üþ	

r   )r9   Únumpyr   Znumpy.testingr   r   Zscipy.specialr   r   Zscipy.special._testutilsr   r   Zfixturer   r   r   r   r   r   Ú<module>   s   

