
    e!hr                     h    d Z ddlZddlmZmZ ddlmZ ddlm	Z	 ddl
mZmZ ddlmZ  G d d	      Zy)
zTests for _sketches.py.    N)assert_assert_equal)clarkson_woodruff_transform)
cwt_matrix)issparserand)normc                   H   e Zd ZdZej
                  j                  d      ZdZdZ	dZ
dZg dZej                  ee	f      Z eee	e
de	      Z eee	e
d
e	      Z eee	e
de	      ZeeeegZej                  edf       ej&                  e      z  Zd Zd Zd Zd Zd Zy)TestClarksonWoodruffTransformz1
    Testing the Clarkson Woodruff Transform
    iGFi  d   皙?   )
iڦhiv7iSRir6xhi'@wiڷMiZiTzYi CiUf[csc)densityformatrandom_statecsrcoo   c                     | j                   D ]Y  }| j                  D ]H  }t        || j                  |      }t	        |j
                  | j                  | j                  fk(         J [ y )N)seed)test_matricesseedsr   n_sketch_rowsr   shapen_cols)selfAr   sketchs       h/var/www/html/diagnosisapp-backend/venv/lib/python3.12/site-packages/scipy/linalg/tests/test_sketches.pytest_sketch_dimensionsz4TestClarksonWoodruffTransform.test_sketch_dimensions1   sg    ## 	KA

 K4t)) ););T[[(IIJK	K    c                     | j                   D ]n  }t        | j                  | j                  |      j	                         }t        | j                  | j                  |      j	                         }t        ||       p y Nrng)r   r   r   n_rowstoarrayr   )r   r   S1S2s       r    ,test_seed_returns_identical_transform_matrixzJTestClarksonWoodruffTransform.test_seed_returns_identical_transform_matrix:   sm    JJ 	!D""DKKTgi  ""DKKTgi  R 	!r"   c                 ,   | j                   D ]  }| j                  D ]t  }t        || j                  |      }t        || j                  |      }t	        |      r|j                         }t	        |      r|j                         }t        ||       v  y r$   )r   r   r   r   r   r(   r   )r   r   r   sketch1sketch2s        r    test_seed_returns_identicallyz;TestClarksonWoodruffTransform.test_seed_returns_identicallyD   s    ## 	/A

 /5t))t 6t))t G$%oo/GG$%oo/GWg./	/r"   c                    d}| j                   D ]  }t        |      rt        |      }nt        j                  j                  |      }| j
                  D ]t  }t        || j                  |      }t        |      rt        |      }nt        j                  j                  |      }t        j                  ||z
        d|z  kD  sp|dz  }v  t        |dk(         y )Nr   r%   r   r   )
r   r   r	   nplinalgr   r   r   absr   )r   n_errorsr   	true_normr   r   sketch_norms          r    $test_sketch_preserves_frobenius_normzBTestClarksonWoodruffTransform.test_sketch_preserves_frobenius_normS   s     ## 	"A{ G	IINN1-	

 
"4t))t F#"&v,K"$)).."8K66)k12S9_DMH
"	"  	Ar"   c                    d}t        t        j                  d            }t        j                  j	                  | j
                        }| j                  D ]]  }t        | j
                  ||      }t        j                  j	                  |      }t        j                  ||z
        d|z  kD  sY|dz  }_ t        |dk(         y )Nr   g      @r%   g      ?r   )
intr1   ceilr2   r	   xr   r   r3   r   )r   r4   r   r5   r   r   r6   s          r    !test_sketch_preserves_vector_normz?TestClarksonWoodruffTransform.test_sketch_preserves_vector_normj   s    BGG$89:IINN466*	JJ 	D04F ))..0Kvvi+-.y@A	 	Ar"   N)__name__
__module____qualname____doc__r1   randomdefault_rngr&   r'   r   r   r   r   A_denser   A_cscA_csrA_coor   sqrtr;   r!   r+   r/   r7   r<    r"   r    r   r      s     ))



+C FFG MIE jj&&)*GCE CE CE 	uM
 	

FA;'"''&/1AK!/.r"   r   )r@   numpyr1   numpy.testingr   r   scipy.linalgr   scipy.linalg._sketchesr   scipy.sparser   r   scipy.sparse.linalgr	   r   rH   r"   r    <module>rO      s&      / 4 - ' $k kr"   