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|
# partial unit test for gmpy rand functionality
# relies on Tim Peters' "doctest.py" test-driver
r'''
>>> r
<built-in function rand>
>>>
'''
import gmpy as _g, doctest,sys
__test__={}
r = _g.rand
__test__['rand']=\
r'''
>>> r('error',1,2,3)
Traceback (most recent call last):
...
TypeError: function takes exactly 2 arguments (4 given)
>>> r('save')
Traceback (most recent call last):
...
RuntimeError: can't save before init
>>> r('init',20)
>>> r('unkn',99)
Traceback (most recent call last):
...
ValueError: unknown option 'unkn'
>>> r('seed',1234)
>>> for i in range(5):
... print(r('next',100))
...
21
75
63
28
27
>>> alis=list("proktelnu")
>>> for i in range(10):
... r('shuf',alis)
... print(''.join(alis))
...
rtoulpnke
eoturlknp
plnuetokr
ekoprulnt
kpoutnrel
rutoneklp
ukeptnorl
onkrlpteu
lknteropu
enrkutlpo
>>> sav=r('save')
>>> print(sav)
774447212137
>>> for i in range(5):
... r('shuf',alis)
... print(''.join(alis))
...
elnuortpk
enutolpkr
eropulntk
plroutenk
ekonrtplu
>>> r('seed',sav)
>>> for i in range(5):
... r('shuf',alis)
... print(''.join(alis))
...
epkruotln
ekrtuplno
eoulrpktn
lpourtekn
enukotlpr
>>> r('seed',sav)
>>> for i in range(3):
... print("%.12f" % float(r('floa')))
...
0.448332786560
0.547296524048
0.895370483398
>>> r('seed',sav)
>>> for i in range(3):
... print(float(r('floa',6)))
...
0.484375
0.90625
0.75
>>> r('seed',sav)
>>> for i in range(3):
... print(_g.f2q(r('floa',6),-6))
...
15/31
9/10
3/4
>>> r('seed',sav)
>>> for i in range(3):
... print(_g.f2q(r('floa',6)))
...
31/64
29/32
3/4
>>> r('seed',sav)
>>> for i in range(5):
... r('shuf',alis)
... print(''.join(alis))
...
elnorutpk
enotrlpku
eurpolntk
plurotenk
ekrnutplo
>>> try: r('shuf','astring')
... except TypeError as e: print(int("does not support item assignment" in str(e)))
1
>>> r('shuf',23)
Traceback (most recent call last):
...
TypeError: 'shuf' needs mutable sequence
>>>
'''
# adapt to python 2.3's slightly different error message in an exception
import sys
if sys.version<'2.4':
__test__['rand'] = __test__['rand'].replace("does not", "doesn't")
def _test(chat=None):
if chat:
print("Unit tests for gmpy 1.15 (rand functionality)")
print(" running on Python %s" % sys.version)
print("")
if _g.gmp_version():
print("Testing gmpy %s (GMP %s) with default caching (%s, %s)" % (
(_g.version(), _g.gmp_version(), _g.get_cache()[0],
_g.get_cache()[1])))
else:
print("Testing gmpy %s (MPIR %s) with default caching (%s, %s)" % (
(_g.version(), _g.mpir_version(), _g.get_cache()[0],
_g.get_cache()[1])))
thismod = sys.modules.get(__name__)
doctest.testmod(thismod, report=0)
if chat:
print("")
print("Overall results for rnd:")
return doctest.master.summarize(chat)
if __name__=='__main__':
_test(1)
|
