U
    f/e$                     @   sR   d dl Zd dlZd dlZd dlmZmZmZmZm	Z	 d dl
mZ G dd dZdS )    N)	DataFrameIndexSeriesconcat
date_rangec                   @   s&  e Zd Zdd Zdd Zejdddgejdg d	d
dggdd Zejde	j
e	je	jfe	j
e	je	jfde	j
e	jfde	je	jfde	j
e	jfde	je	jfddgdd Zejdddddddgdd Zdd Zdd Zd d! Zd"d# Zd$d% Zd&d' Zd(d) Zd*d+ Zd,d- Zd.d/ ZdS )0TestEmptyConcatc           	      C   s6  t tjddtdd}|d d  }d|d< |dd }||||dd  g}t|d|d	}|jd
ddddgd}|d d|d< d|j	dddf< t
|| t dtditddddd}t  }t||gdd}t
|| t||gdd}t
|| t||g}t
|| t||g}t
|| d S )N
      Zabcdcolumns   barZfoor   )axissortabcdOAi'  Z20130101s)Zperiodsfreqindex   r   )r   nprandomZrandnlistcopyr   Zreindexastypeloctmassert_frame_equalranger   )	selfr   dfZbazemptyframesZ	concattedexpectedresult r+   J/tmp/pip-unpacked-wheel-tiezk1ph/pandas/tests/reshape/concat/test_empty.pytest_handle_empty_objects   s.    
 z)TestEmptyConcat.test_handle_empty_objectsc                 C   s*  t dddgdd}t ddd}t||gdd	}tdddgtjtjtjgd
tdddgddd}t|| t dddgdd}t ddd}t||gdd	}t dddg}t|| t dddgdd}t d dd}t||gdd	}tdddgtjtjtjgdddgtdddgddd}t|| d S )Nr         x)nameyfloat64)r1   dtyper   )r0   r2   r   r   r4   r   )r0   r   )r   r   )	r   r   r   r   nanr   r"   r#   assert_series_equal)r%   s1s2resexpr+   r+   r,   test_concat_empty_series0   s,    z(TestEmptyConcat.test_concat_empty_seriestzNUTCvaluesr   r.   r/   c                 C   sx   t g ddj|}|rd ntj}t ||d}tt tjgt| ddj||d}t	||gdd}t
|| d S )NM8[ns]r5   )r   r   r   r   )r   dtZtz_localizer   r3   r   pdZNaTlenr   r"   r#   )r%   r=   r?   firstr4   secondr)   r*   r+   r+   r,   !test_concat_empty_series_timelikeM   s    z1TestEmptyConcat.test_concat_empty_series_timelikezleft,right,expectedm8[ns]r@   )categoryrH   rH   )rH   objectrI   c                 C   s*   t t|dt|dg}|j|ks&td S Nr5   )r   r   r4   AssertionError)r%   leftrightr)   r*   r+   r+   r,   test_concat_empty_series_dtypes_   s    z/TestEmptyConcat.test_concat_empty_series_dtypesr4   r3   int8uint8boolc                 C   sR   t |}tt|dg}|j|ks(ttt|dt|dg}|j|ksNtd S rJ   )r   r4   r   r   rK   )r%   r4   r*   r+   r+   r,   0test_concat_empty_series_dtypes_match_roundtripss   s
    
z@TestEmptyConcat.test_concat_empty_series_dtypes_match_roundtripsc                    s   t tjddddddg}dd d	d
   fdd}|D ]J}|D ]@}||krPqB|||}tt|dt|dgj}|j|ksBtqBq:d S )Nr3   rO   rP   rQ   rG   r@   c                 S   sb   | j |j h}t|dddh s6| j dks2|j dkr6dS t|ddh s^| j dksZ|j dkr^dS d S )Niur   kindrC   r4   dtype2Ztypsr+   r+   r,   int_result_type   s    zSTestEmptyConcat.test_concat_empty_series_dtypes_roundtrips.<locals>.int_result_typec                 S   s:   | j |j h}t|dddh s6| j dks2|j dkr6dS d S )NfrS   rT   rU   rW   r+   r+   r,   float_result_type   s    zUTestEmptyConcat.test_concat_empty_series_dtypes_roundtrips.<locals>.float_result_typec                    s0    | |}|d k	r|S | |}|d k	r,|S dS )Nr   r+   )r4   rX   r*   r[   rY   r+   r,   get_result_type   s    

zSTestEmptyConcat.test_concat_empty_series_dtypes_roundtrips.<locals>.get_result_typer5   )mapr   r4   r   r   rV   rK   )r%   dtypesr]   r4   rX   r)   r*   r+   r\   r,   *test_concat_empty_series_dtypes_roundtrips   s    	
z:TestEmptyConcat.test_concat_empty_series_dtypes_roundtripsc                 C   s4   t tddttjdttjdgjtjks0td S )Nr@   r5   )r   r   r   bool_int64r4   object_rK   r%   r+   r+   r,   &test_concat_empty_series_dtypes_triple   s    z6TestEmptyConcat.test_concat_empty_series_dtypes_triplec                 C   s.   t ttg ddtddgjdks*td S )NrH   r5   r3   )r   r   r   arrayr4   rK   rd   r+   r+   r,   2test_concat_empty_series_dtype_category_with_array   s    zBTestEmptyConcat.test_concat_empty_series_dtype_category_with_arrayc                 C   s   t tdddtdddg}|jdks2tt tdddtddg}ttj}|j|ksjtt tdddtddg}td}|j|kstd S )Nr3   r5   ZSparsezSparse[float64]rI   )	r   r   r    r4   rK   rB   ZSparseDtyper   r3   )r%   r*   r)   r+   r+   r,   &test_concat_empty_series_dtypes_sparse   s     
z6TestEmptyConcat.test_concat_empty_series_dtypes_sparsec                 C   sT   t dddgtjdddgd}t |jd}t||gdd}|t}t|| d S )Nr   r   r.   r/   )ZRowZEmptyColZ	NumberColr
   r   )	r   r   r6   r   r   r    rI   r"   r#   )r%   Zdf_1Zdf_2r*   r)   r+   r+   r,   !test_concat_empty_df_object_dtype   s
    
z1TestEmptyConcat.test_concat_empty_df_object_dtypec                 C   s   t tdd}|d tj|d< |d tj|d< |d tj|d< t||g}|d jtjksjt	|d jtjks~t	|d jtjkst	t||tjg}|d jtj
kst	|d jtjkst	|d jtjkst	d S )Nabcr
   r   r   r   )r   r   r    r   ra   int32r3   r   r4   rK   rc   )r%   r&   r*   r+   r+   r,   "test_concat_empty_dataframe_dtypes   s    z2TestEmptyConcat.test_concat_empty_dataframe_dtypesc                 C   sn   t  }t dddgiddgdd}t dg ig dd}d|fd|ffD ]&\}}t||gd|d	}t|| qBd S )
Nr   r   r.   r   rb   )r   r4   innerouter)r   joinr   r   r"   r#   )r%   Zdf_emptyZdf_aZdf_expectedhowr)   r*   r+   r+   r,   test_concat_inner_join_empty   s    z,TestEmptyConcat.test_concat_inner_join_emptyc                 C   s\   t dd gdd ggddgd}t dd gdd ggddgd}t||g}|j}t|j| d S )Nr   r.   r   r   )datar   r/   r	   )r   r   r_   r"   r7   )r%   df1df2r*   r)   r+   r+   r,   test_empty_dtype_coerce   s
    z'TestEmptyConcat.test_empty_dtype_coercec                 C   s   t ddgd}t ddgd}t|||g}t dddgd}t|| t ddgd}t dgd}t||g}t ddgd}t|| d S )Nr   r   r
   r   rp   )r%   rt   ru   r*   r)   Zdf3Zdf4r+   r+   r,   test_concat_empty_dataframe  s    z+TestEmptyConcat.test_concat_empty_dataframec                 C   st   t dddgdddgd}t ddddgi}t|d d |d d g}|d jtjks\t|d jtjksptd S )	Nr   r.   r/   r   r   r   )r   r   r   )r   r   r4   r   rb   rK   rc   )r%   rt   ru   r*   r+   r+   r,   ,test_concat_empty_dataframe_different_dtypes  s
    z<TestEmptyConcat.test_concat_empty_dataframe_different_dtypes)__name__
__module____qualname__r-   r<   pytestmarkZparametrizerF   r   ra   rk   Zfloat32rc   rb   rN   rR   r`   re   rg   rh   ri   rl   rr   rv   rw   rx   r+   r+   r+   r,   r      sB    
 
	+		
r   )Znumpyr   r|   ZpandasrB   r   r   r   r   r   Zpandas._testingZ_testingr"   r   r+   r+   r+   r,   <module>   s
   