U
    f/e                     @   s  d Z ddlmZ ddlZddlmZ ddlmZ ej	
di ddigdd	 Zd
d Zdd Zej	
ddedddggdddgdfdeddddddggddddddgdfdedddddddggddd dd!d"d#gdfgd$d% Zej	
d&d'dddgedd(d(gd)d*d+ggdddgdfd,ddddddgedd(d-d.d/d0gd)d*d+d1d2d3ggddddddgdfd4ddd dd!ddgedd(d-d.d/d0d5gd)d*d+d1d2d3d6ggddd dd!d"d#gdfgd7d8 Zd9d: ZdS );z
Tests that duplicate columns are handled appropriately when parsed by the
CSV engine. In general, the expected result is that they are either thoroughly
de-duplicated (if mangling requested) or ignored otherwise.
    )StringION)	DataFramekwargsZmangle_dupe_colsTc                 C   sT   | }d}|j t|fddi|}tdddddggd	d
dddgd}t|| d S )Nza,a,b,b,b
1,2,3,4,5sep,               aa.1bzb.1zb.2columns)read_csvr   r   tmassert_frame_equal)all_parsersr   parserdataresultexpected r   L/tmp/pip-unpacked-wheel-tiezk1ph/pandas/tests/io/parser/test_mangle_dupes.py
test_basic   s
    "r   c                 C   sH   | }d}t dddgdddggdd	d
gd}|t|}t|| d S )Nza,b,a
0,1,2
3,4,5r   r   r   r	   r
   r   r   r   r   r   )r   r   r   r   r   )r   r   r   r   r   r   r   r   test_basic_names   s
    "r   c              	   C   s>   | }d}t jtdd |jt|dddgd W 5 Q R X d S )Nz0,1,2
3,4,5Duplicate namesmatchr   r   namespytestZraises
ValueErrorr   r   )r   r   r   r   r   r   test_basic_names_raise&   s    r%   zdata,expectedza,a,a.1
1,2,3r   r   r	   r   r   za.1.1r   z+a,a,a.1,a.1.1,a.1.1.1,a.1.1.1.1
1,2,3,4,5,6r
   r      za.1.1.1z	a.1.1.1.1za.1.1.1.1.1z!a,a,a.3,a.1,a.2,a,a
1,2,3,4,5,6,7   za.3za.2za.2.1za.3.1c                 C   s"   | }| t|}t|| d S )N)r   r   r   r   )r   r   r   r   r   r   r   r   test_thorough_mangle_columns/   s    r(   zdata,names,expectedza,b,b
1,2,3r   123za,b,c,d,e,f
1,2,3,4,5,6cdef456za,b,c,d,e,f,g
1,2,3,4,5,6,7g7c              	   C   s4   | }t jtdd |jt||d W 5 Q R X d S )Nr   r   r    r"   )r   r   r!   r   r   r   r   r   test_thorough_mangle_namesK   s    !r5   c                 C   s   d}| }dddg}t ||i}tdD ]X}t  }t|d D ]}dddg|dd|  < q<|||< |t| }t|| q&d S )N0r   r   r	   r   z
Unnamed: 0z.1)r   ranger   r   Zto_csvr   r   )r   Zorig_keyr   Z
orig_valueZdfir   jr   r   r   !test_mangled_unnamed_placeholdersr   s    
r:   )__doc__ior   r#   Zpandasr   Zpandas._testingZ_testingr   markZparametrizer   r   r%   r(   r5   r:   r   r   r   r   <module>   sn   
	
 	
