U
    >vf&                     @   sb   d dl m Z mZmZ d dlZd dlZd dlmZmZm	Z	m
Z
mZmZ d dlmZ G dd dZdS )    )datetime	timedeltatimezoneN)OutOfBoundsDatetimeOutOfBoundsTimedelta	Timedelta	Timestampoffsets	to_offsetc                   @   s  e Z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eddeddeddgdd Zejdedddfed dd fedd!d"fedd#d$fgd%d& Zejd'ed(ed(d)d*gejd+d,ed,ejd,d-gejd.ejdd/gejd.gd0d1 Zejd2d3d4gd5d6 Zejd2d3d4gd7d8 Zd9d: Zd;S )<TestTimestampArithmeticc                 C   sX   t d}tdd }t d}|| |ks,t|| |ks<tt d}|| |ksTtd S )N2000/1/1Dd   z
2000/04/10z
1999/09/23)r   r
   AssertionError)selfstampZoffset_no_overflowexpected r   Q/tmp/pip-unpacked-wheel-vdrwu74i/pandas/tests/scalar/timestamp/test_arithmetic.pytest_overflow_offset   s    z,TestTimestampArithmetic.test_overflow_offsetc              	   C   s  t dd}dtd }d}d}tjt|d ||  W 5 Q R X tjt|d ||  W 5 Q R X tjt|d ||  W 5 Q R X t dd}td	d
 }d}tjt|d ||  W 5 Q R X tjt|d ||  W 5 Q R X tjt|d ||  W 5 Q R X d S )Nz2017-01-13 00:00:00nsi3   zathe add operation between \<-?\d+ \* Days\> and \d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2} will overflowzECannot cast -?20169940 days \+?00:00:00 to unit='ns' without overflowmatchr   r   l    d(	 zHCannot cast -?10000000000 days \+?00:00:00 to unit='ns' without overflow)	r   as_unitr	   ZDaypytestraisesr   OverflowErrorr
   )r   r   Zoffset_overflowmsgZlmsg2Zlmsg3r   r   r   test_overflow_offset_raises%   s*    z3TestTimestampArithmetic.test_overflow_offset_raisesc              	   C   sb   d}t dd}t dd}tjt|d ||  W 5 Q R X ||  | | ks^td S )NzResult is too largez2101-01-01 00:00:00r   z1688-01-01 00:00:00r   )r   r   r   r   r   to_pydatetimer   )r   r   abr   r   r   test_overflow_timestamp_raisesM   s    z6TestTimestampArithmetic.test_overflow_timestamp_raisesc                 C   s(   t d}|td }|j|jks$td S )Nl   { |%*x r   )r   r   Z
nanosecondr   )r   valresultr   r   r   test_delta_preserve_nanosY   s    z1TestTimestampArithmetic.test_delta_preserve_nanosc              	   C   s   t d}td|d}|| }|| |ks,t| | |ks@t|d kr^| | |kstn*d}tjt|d | |  W 5 Q R X d S )Nl   @~z
2021-01-01tzz;Cannot subtract tz-naive and tz-aware datetime-like objectsr   )r   r   r   r    Zto_datetime64r   r   	TypeError)r   Ztz_naive_fixturetdtsotherr   r   r   r   test_rsub_dtscalars^   s    z+TestTimestampArithmetic.test_rsub_dtscalarsc                 C   sD   t ddd}tt ddd}|| jdks.t|| jdks@td S )N  
         r   )r   r   daysr   )r   dtr+   r   r   r   test_timestamp_sub_datetimem   s    z3TestTimestampArithmetic.test_timestamp_sub_datetimec                 C   sF   t d}tddddtjd}|| }t|ts2t|tdksBtd S )Nz2020-10-22T22:00:00+00:00i  r/      tzinfoz0 days)r   r   r   utc
isinstancer   r   r   t1t2r%   r   r   r   test_subtract_tzaware_datetimes   s
    z6TestTimestampArithmetic.test_subtract_tzaware_datetimec                 C   sF   t dd}t dd}|| }t|ts2t|tdksBtd S )N20130101z
US/EasternCET0 days 06:00:00)r   tz_localizer:   r   r   r;   r   r   r   /test_subtract_timestamp_from_different_timezone|   s
    zGTestTimestampArithmetic.test_subtract_timestamp_from_different_timezonec                 C   sx   t dddttddd}tdd}|| }t|ts>t|tdksNt|| }t|tsdt|td	ksttd S )
Nr.   r   hoursr7   r?   r@   rA   z-1 days +18:00:00)r   r   r   r   rB   r:   r   r   r;   r   r   r   5test_subtracting_involving_datetime_with_different_tz   s    zMTestTimestampArithmetic.test_subtracting_involving_datetime_with_different_tzc                 C   sN   t d}|d}||td }|| }t|ts:t|tdksJtd S )Nr?   UTCz0 days 05:00:00)r   rB   Z
tz_convertr   r:   r   )r   Ztz_aware_fixtureZt_rawZt_UTCZt_diffr%   r   r   r   $test_subtracting_different_timezones   s    
z<TestTimestampArithmetic.test_subtracting_different_timezonesc              	   C   s   t ddd}tdd}t|}d}tjt|d |d  W 5 Q R X tjt|d |d  W 5 Q R X t|| tksztt|| tkstt|| tkstt	
dd}t|| tkstt|| tkstd S )	Ni        r   )secondsz Addition/subtraction of integersr   r   )r   r   r   r   r   r)   typer   r   nptimedelta64)r   r4   r*   r+   r   Ztd64r   r   r   test_addition_subtraction_types   s    
z7TestTimestampArithmetic.test_addition_subtraction_typesr*   rJ   rE   hc                 C   s   |}|| || kst d S )N)r   )r   r*   Zfixed_now_tsr+   r   r   r   test_radd_tdscalar   s    z*TestTimestampArithmetic.test_radd_tdscalarzother,expected_differenceir   iIusimsi@+c                 C   sR   t  }t|d}|| }|j|j }||ks6tt|}|| |ksNtd S )Nr   )r   utcnowr   r   _valuer   )r   r,   Zexpected_differencenowr+   r%   Zvaldiffts2r   r   r   #test_timestamp_add_timedelta64_unit   s    
z;TestTimestampArithmetic.test_timestamp_add_timedelta64_unitr+   z
1776-07-04rH   r'   r,   r      ZdtyperK   c              	   C   s   d}t jt|d ||  W 5 Q R X t jt|d ||  W 5 Q R X t jt|d ||  W 5 Q R X d}t jt|d ||  W 5 Q R X d S )Nz3Addition/subtraction of integers and integer-arraysr   zunsupported operand type)r   r   r)   )r   r+   r,   r   r   r   r   test_add_int_with_freq   s    z.TestTimestampArithmetic.test_add_int_with_freqshape)   )rZ   rJ   c              	      s   t dd tdd|} | } fddtdD }tjdd |D dd	|}t	|| |  }t	||  | } fd
dtdD }tjdd |D dd	|}t	|| d}t
jt|d |   W 5 Q R X d S )N2020-04-04 15:45r   r^   m8[h]c                    s   g | ]} t |d  qS rE   r   .0nr+   r   r   
<listcomp>   s     zATestTimestampArithmetic.test_addsub_m8ndarray.<locals>.<listcomp>c                 S   s   g | ]
}|j qS r   Zasm8rd   xr   r   r   rg      s     zM8[ns]r[   c                    s   g | ]} t |d  qS ra   rb   rc   rf   r   r   rg      s     c                 S   s   g | ]
}|j qS r   rh   ri   r   r   r   rg      s     Dunsupported operand type\(s\) for -: 'numpy.ndarray' and 'Timestamp'r   )r   r   rN   arangeastypereshaperangearraytmassert_numpy_array_equalr   r   r)   r   r]   r,   r%   Z	ex_stampsr   r   r   rf   r   test_addsub_m8ndarray   s    z-TestTimestampArithmetic.test_addsub_m8ndarrayc              	      s   t ddd tdd|} | } fddtdD }t||}t|| |  }t||  | } fddtdD }t||}t|| d	}t	j
t|d
 |   W 5 Q R X d S )Nr_   z
US/Pacificr'   r^   r`   c                    s   g | ]} t |d  qS ra   rb   rc   rf   r   r   rg     s     zITestTimestampArithmetic.test_addsub_m8ndarray_tzaware.<locals>.<listcomp>c                    s   g | ]} t |d  qS ra   rb   rc   rf   r   r   rg     s     rk   r   )r   rN   rl   rm   rn   ro   rp   rq   rr   r   r   r)   rs   r   rf   r   test_addsub_m8ndarray_tzaware  s    z5TestTimestampArithmetic.test_addsub_m8ndarray_tzawarec                 C   sD   t ddd}t||d}t||d}|| }td}||ks@td S )Ni  r   r'   r   )r   r   r   r   )r   Zutc_fixtureZutc_fixture2r4   Zts1rX   r%   r   r   r   r   #test_subtract_different_utc_objects   s    z;TestTimestampArithmetic.test_subtract_different_utc_objectsN) __name__
__module____qualname__r   r   r#   r&   r-   r5   r>   rC   rG   rI   rP   r   markZparametrizer   rN   rO   r   rR   rY   r   Zint64rp   Zint32Zuint64r\   rt   ru   rv   r   r   r   r   r      sZ   (		
 
	


	

r   )r   r   r   ZnumpyrN   r   Zpandas._libs.tslibsr   r   r   r   r	   r
   Zpandas._testingZ_testingrq   r   r   r   r   r   <module>   s
    	