o
    d)                     @   s   d Z ddlmZmZ ddlZddlZddlm  m	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 G dd	 d	Zd
d ZdS )z\
Tests the TextReader class in parsers.pyx, which
is integral to the C engine in parsers.py
    )BytesIOStringION)
TextReader)	DataFrame)TextFileReaderread_csv)ensure_dtype_objsc                   @   s  e Zd Zejdd Zdd Zdd Zdd Zd	d
 Z	dd Z
dd Zdd Zdd Zdd Zdd Zdd Zdd Zdd Zdd Zdd  Zd!d" Zd#d$ Zd%d& Zd'd( Zejd)d*d+d,ifd-d.d/ifd0d+d,ifd1d+d,ifd2d.d/ifd3d.d/ifgd4d5 Zd6d7 Zd8d9 Zd:S );TestTextReaderc                 C   s   |ddddS )Niodatacsvz	test1.csv )selfdatapathr   r   k/var/www/html/visualizacion-main/env/lib/python3.10/site-packages/pandas/tests/io/parser/test_textreader.pycsv_path   s   zTestTextReader.csv_pathc                 C   s@   t |d}t|}|  W d    d S 1 sw   Y  d S )Nrbopenr   readr   r   freaderr   r   r   test_file_handle   s   
"zTestTextReader.test_file_handlec                 C   sD   t |d}t|d d}|  W d    d S 1 sw   Y  d S Nr   headerr   r   r   r   r   test_file_handle_mmap$   s   
"z$TestTextReader.test_file_handle_mmapc                 C   sR   t |d}| }W d    n1 sw   Y  t|}t|d d}|  d S r   )r   r   r   r   )r   r   r   textsrcr   r   r   r   test_StringIO*   s   
zTestTextReader.test_StringIOc                 C   s>   d}t t|d d}| }tttt|d dksJ d S )Nz	a
b
a
b
ar   r      )r   r   r   lensetmapidr   r   r   resultr   r   r   test_string_factorize1   s   "z$TestTextReader.test_string_factorizec                 C   b   d}t t|dd d}| }t|d tjg dtjd t|d tjg dtjd d S )	Nza,   b
a,   b
a,   b
a,   bT)skipinitialspacer   r   )ar+   r+   r+   dtype   )br/   r/   r/   r   r   r   tmassert_numpy_array_equalnparrayobject_r&   r   r   r   test_skipinitialspace8      z$TestTextReader.test_skipinitialspacec                 C   s4   d}t t|d d}| }|d jtjksJ d S )NzTrue
False
True
Truer   r   )r   r   r   r-   r3   bool_r&   r   r   r   test_parse_booleansE   s   z"TestTextReader.test_parse_booleansc                 C   r)   )	Nza  b
a		 "b"
"a"	 	 bT)delim_whitespacer   r   )r+   r+   r+   r,   r.   )r/   r/   r/   r0   r&   r   r   r   test_delimit_whitespaceM   r7   z&TestTextReader.test_delimit_whitespacec                 C   sD   d}t t|d d}| }tjg dtjd}t|d | d S )Nza
"hello
there"
thisr   )r+   zhello
therethisr,   r   )r   r   r   r3   r4   r5   r1   r2   r   r   r   r'   expectedr   r   r   test_embedded_newlineZ   s
   z$TestTextReader.test_embedded_newlinec                 C   sB   d}t t|ddd d}| }tddg}t|d | d S )Nz12345,67
345,678:,)	delimiterdecimalr   g)\@g+ٚu@r   )r   r   r   r3   r4   r1   assert_almost_equalr=   r   r   r   test_euro_decimalc   s
   z TestTextReader.test_euro_decimalc                 C   sH   d}t t|ddd d}| }tjddgtjd}t|d | d S )	Nz123,456
12,500r@   rA   rB   	thousandsr   @ 0  r,   r   )r   r   r   r3   r4   int64r1   rD   r=   r   r   r   test_integer_thousandsl   s
   z%TestTextReader.test_integer_thousandsc                 C   s<   d}t t|ddd d}| }tddg}t|| d S )Nz123.456
12.500r@   .rF   rH   rI   )r   r   r   r   r1   assert_frame_equalr=   r   r   r   test_integer_thousands_altu   s   z)TestTextReader.test_integer_thousands_altc                 C   s   d}t t|dd d}d}tjtj|d |  W d    n1 s$w   Y  t t|dd dd}| }tjg dt	d	tjg d
t	d	tjg dt	d	d}t
|| t t|dd dd}|  | }d|jv spJ d|jv swJ d S )Nz'a:b:c
d:e:f
g:h:i
j:k:l:m
l:m:n
o:p:q:rr@   rB   r   zCError tokenizing data\. C error: Expected 3 fields in line 4, saw 4)matchr!   )rB   r   on_bad_lines)r+   dglr,   )r/   ehm)cr   inr   r.   r!   r.   zSkipping line 4zSkipping line 6)r   r   pytestraisesparserParserErrorr   r3   r4   objectassert_array_dicts_equal
readouterrerr)r   capsysr   r   msgr'   r>   capturedr   r   r   test_skip_bad_lines   s,   

z"TestTextReader.test_skip_bad_linesc                 C   s   d}t t|ddd}|j}g dg}||ksJ | }tjddgtjdtjdd	gtjdtjd
dgtjdd}t|| d S )Nz%skip this
skip this
a,b,c
1,2,3
4,5,6rA   r!   rO   r+   r/   rX   r.      r,            r[   )r   r   r   r   r3   r4   rJ   ra   )r   r   r   r   r>   recsr   r   r   test_header_not_enough_lines   s   
z+TestTextReader.test_header_not_enough_linesc                 C   sF   d}t t|dd dd}| }dtjdgd tdi}t|| d S )	Nz,\"hello world"
\"hello world"
\"hello world"rA   \)rB   r   
escapecharr   z"hello world"rk   r,   )r   r   r   r3   r4   r`   ra   r=   r   r   r   test_escapechar   s
   zTestTextReader.test_escapecharc                 C      d S Nr   r   r   r   r   test_eof_has_eol   s   zTestTextReader.test_eof_has_eolc                 C   rr   rs   r   rt   r   r   r   test_na_substitution   s   z#TestTextReader.test_na_substitutionc                    s   d  fdd}|dd}|  }|d jdksJ tjg ddd}|d |k s-J |d	 jd
ks6J |dd}|  }|d jdksHJ tjg ddd}|d |k s[J |d	 jdksdJ d S )Nza,1
aa,2
aaa,3
aaaa,4
aaaaa,5c                     s2   d| v rt | d | d< tt fdd d| S )Nr-   rA   rO   r   r   r   kwdsr   r   r   _make_reader   s   z<TestTextReader.test_numpy_string_dtype.<locals>._make_readerzS5,i4r,   r   S5)r+   aaaaaaaaaaaaaar.   i4S4)r+   r}   r~   r   r   )r   r-   r3   r4   all)r   r{   r   r'   	ex_valuesr   rz   r   test_numpy_string_dtype   s   

z&TestTextReader.test_numpy_string_dtypec                    s   d  fdd}|dddd}|  }|d jdksJ |d	 jdks&J |tjtdd}|  }|d jdks<J |d	 jd
ksEJ |tdtd
dd}|  }|d jdks`J |d	 jd
ksiJ d S )Nzone,two
1,a
2,b
3,c
4,dc                     s0   d| v rt | d | d< tt fddi| S )Nr-   rB   rA   rw   rx   rz   r   r   r{      s   z4TestTextReader.test_pass_dtype.<locals>._make_readeru1S1)oner.   r,   r   r.   O)r   r-   r3   uint8r`   )r   r{   r   r'   r   rz   r   test_pass_dtype   s   zTestTextReader.test_pass_dtypec                    sp   d  fdd}|dd}|  }|   }t|dksJ |d |d k s*J |d |d k s6J d S )Nz a,b,c
1,2,3
4,5,6
7,8,9
10,11,12c                     s   t t fddi| S )NrB   rA   )r   r   rx   rz   r   r   r{      s   z1TestTextReader.test_usecols.<locals>._make_reader)r.   r!   )usecolsr!   r.   )r   r"   r   )r   r{   r   r'   expr   rz   r   test_usecols   s   

zTestTextReader.test_usecolsztext, kwargsz a,b,c1,2,34,5,67,8,910,11,12rB   rA   z*a  b  c1  2  34  5  67  8  910  11  12r:   Tz a,b,c1,2,34,5,6,88,910,11,12zdA,B,C,D,E,F,G,H,I,J,K,L,M,N,OAAAAA,BBBBB,0,0,0,0,0,0,0,0,0,0,0,0,0,BBBBB,0,0,0,0,0,0,0,0,0,0,0,0,0zA  B  C  2  34  5  6zA B C2 34 5 6c                 C   sJ   | dd}tt|fi | }tt|fi | }t|| d S )Nz
)replacer   r   r   ra   )r   r   kwargs	nice_textr'   r>   r   r   r   test_cr_delimited  s   z TestTextReader.test_cr_delimitedc           	      C   sR  d}t t|dd }tjddgtjdtjddgtdtjd	dgtdd
}t|| tdgtj	ggdgddgd}tg dg dgt
dddgd}tg ddtj	tj	tj	gg dddtj	tj	ggt
dg dd}tdD ]5}ttdddgdd}t|| ttdt
ddd}t|| ttdt
ddd}t|| qqd S )Nza,b,c
1,2,3
4,,rA   )rB   r.   ri   r,   2 3r[   r/   r+   rX   )columnsindex)r.   r.   r.   r   abcd)r.   r!   rk   ri   rl   )   	   
            )r   rj         d   za,b
c
r   )skiprowsnamesenginez1,1,1,1,0
1,1,1,1,0


)r   r   z"0,1,2,3,4
5,6
7,8,9,10,11
12,13,14)r   r   r   r3   r4   rJ   r`   ra   r   nanlistranger   r1   rM   )	r   r   r'   r>   r+   r/   rX   _dfr   r   r   test_empty_field_eof#  s@   
"z#TestTextReader.test_empty_field_eofc                 C   sJ   t t dd g dd}t|tsJ W d    d S 1 sw   Y  d S )N   rh   )	chunksizer   r   )r   r   
isinstancer   )r   r   r   r   r   test_empty_csv_inputM  s   "z#TestTextReader.test_empty_csv_inputN)__name__
__module____qualname__r\   fixturer   r   r   r    r(   r6   r9   r;   r?   rE   rK   rN   rg   rn   rq   ru   rv   r   r   r   markparametrizer   r   r   r   r   r   r   r	      sN    
			




*r	   c                 C   s2   |   D ]\}}tt|t||  qd S rs   )itemsr1   r2   r3   asarray)leftrightkvr   r   r   ra   U  s   ra   )__doc__r
   r   r   numpyr3   r\   pandas._libs.parsers_libsparsersr^   r   pandasr   pandas._testing_testingr1   pandas.io.parsersr   r   "pandas.io.parsers.c_parser_wrapperr   r	   ra   r   r   r   r   <module>   s      =