a
    Gb                     @   s   d Z ddlmZ ddlZddlZddlmZ ddlm	Z
 ejdZejdddggdd	 Zejd
i ddiddigdd Zdd Zdd Zdd Zejdg ddd Zejdddgdd Zdd  ZdS )!zf
Tests that comments are properly handled during parsing
for all of the parsers defined in parsers.py
    )StringION)	DataFrameZpyarrow_skip	na_valuesZNaNc                 C   sL   | }d}t g ddtjdggg dd}|jt|d|d}t|| d S )	Nz&A,B,C
1,2.,4.#hello world
5.,NaN,10.0
g      ?g       @      @      @      $@ABCcolumns#commentr   r   npnanread_csvr   tmassert_frame_equal)all_parsersr   parserdataexpectedresult r   Blib/python3.9/site-packages/pandas/tests/io/parser/test_comment.pytest_comment   s    r   read_kwargslineterminator*delim_whitespaceTc                 C   s   | }d}| dr |dd}n@| dr`|jdkrNtjjdd}|j| |d	| d}d
|d< |jt	|fi |}t
g ddtjdggg dd}t|| d S )Nz@# empty
A,B,C
1,2.,4.#hello world
#ignore this line
5.,NaN,10.0
r#   , r!   cz2Custom terminator not supported with Python engine)reason
r   r   r   r   r   r	   r   )getreplaceenginepytestmarkxfailnode
add_markerr   r   r   r   r   r   r   )r   r    requestr   r   r-   r   r   r   r   r   test_line_comment   s"    


r2   c                 C   sL   | }d}t g ddtjdggg dd}|jt|ddd	}t|| d S )
NzH# empty
random line
# second empty line
1,2,3
A,B,C
1,2.,4.
5.,NaN,10.0
r   r   r   r	   r   r      )r   skiprowsr   r   r   r   r   r   r   r   r   test_comment_skiprows=   s    	r6   c                 C   sL   | }d}t g ddtjdggg dd}|jt|ddd	}t|| d S )
Nz<# empty
# second empty line
1,2,3
A,B,C
1,2.,4.
5.,NaN,10.0
r   r   r   r	   r   r      r   headerr   r5   r   r   r   test_comment_headerO   s    r:   c                 C   sN   | }d}t g ddtjdggg dd}|jt|ddd	d
}t|| d S )NzU# empty
# second empty line
# third empty line
X,Y,Z
1,2,3
A,B,C
1,2.,4.
5.,NaN,10.0
r   r   r   r	   r   r   r3   r7   )r   r4   r9   r   r5   r   r   r   test_comment_skiprows_header`   s    r;   comment_char)r   ~&^r"   @c                 C   sN   | }d}|j t|d||d}tg dg dgg dd}t|| d S )Nz,a,b,c
1,2,3#ignore this!
4,5,6#ignorethistoor   )r   r7         )r3         abr&   r   )r   r   r*   r   r   r   )r   r<   r   r   r   r   r   r   r   test_custom_comment_charu   s    rI   r9   Zinferc                 C   sh   | }d}|d u r.t ddgddgddgd}nt g d	gg d
d}|jt|d|d}t|| d S )Nz # notes
a,b,c
# more notes
1,2,3rG   1rH   2r&   3)r   r7   rB   rA   rF   r   r   r8   )r   r   r   r   r   )r   r9   r   r   r   r   r   r   r   test_comment_first_line   s    rM   c                 C   s~   | j dkr&d}|jtjj|td | }d}|jt|ddd}t	g dg d	d
t
jt
jgdt
jdgd}t|| d S )Nr&   z=see gh-34002: works on the python engine but not the c engine)r'   ZraiseszU# this is a comment
col1,col2,col3,col4
1,2,3,4#inline comment
4,5#,6,10
7,8,#N/A,11
r   z#N/Ar   )r7   r3      )rB   rD      g      @r   g      &@)Zcol1Zcol2Zcol3Zcol4)r+   r/   r0   r,   r-   r.   AssertionErrorr   r   r   r   r   r   r   )r   r1   r'   r   r   r   r   r   r   r   "test_comment_char_in_default_value   s    

rQ   )__doc__ior   Znumpyr   r,   Zpandasr   Zpandas._testingZ_testingr   r-   ZusefixturesZ
pytestmarkZparametrizer   r2   r6   r:   r;   rI   rM   rQ   r   r   r   r   <module>   s(   



