basic_args: added tests for sympy.functions.*
basic_args: added tests for sympy.functions.*

saurabhjn76/sympy,oliverlee/sympy,abhiii5459/sympy,abhiii5459/sympy,mafiya69/sympy,kaushik94/sympy,pbrady/sympy,mcdaniel67/sympy,asm666/sympy,sunny94/temp,beni55/sympy,shipci/sympy,souravsingh/sympy,Vishluck/sympy,Gadal/sympy,pbrady/sympy,Davidjohnwilson/sympy,aktech/sympy,madan96/sympy,flacjacket/sympy,lidavidm/sympy,ahhda/sympy,yashsharan/sympy,skidzo/sympy,ahhda/sympy,MechCoder/sympy,rahuldan/sympy,toolforger/sympy,souravsingh/sympy,wanglongqi/sympy,lidavidm/sympy,bukzor/sympy,liangjiaxing/sympy,ChristinaZografou/sympy,Gadal/sympy,grevutiu-gabriel/sympy,emon10005/sympy,abloomston/sympy,aktech/sympy,moble/sympy,pandeyadarsh/sympy,moble/sympy,garvitr/sympy,farhaanbukhsh/sympy,sunny94/temp,oliverlee/sympy,srjoglekar246/sympy,sahmed95/sympy,drufat/sympy,MechCoder/sympy,lindsayad/sympy,asm666/sympy,meghana1995/sympy,hargup/sympy,jaimahajan1997/sympy,sahilshekhawat/sympy,sunny94/temp,cswiercz/sympy,Shaswat27/sympy,debugger22/sympy,maniteja123/sympy,toolforger/sympy,VaibhavAgarwalVA/sympy,cccfran/sympy,Designist/sympy,farhaanbukhsh/sympy,kumarkrishna/sympy,sampadsaha5/sympy,Gadal/sympy,MechCoder/sympy,yashsharan/sympy,pandeyadarsh/sympy,ChristinaZografou/sympy,atreyv/sympy,kaichogami/sympy,chaffra/sympy,hargup/sympy,meghana1995/sympy,vipulroxx/sympy,Vishluck/sympy,sahilshekhawat/sympy,MridulS/sympy,garvitr/sympy,jerli/sympy,sampadsaha5/sympy,atreyv/sympy,jamesblunt/sympy,Arafatk/sympy,hrashk/sympy,kaushik94/sympy,sahmed95/sympy,skidzo/sympy,AkademieOlympia/sympy,Mitchkoens/sympy,ga7g08/sympy,pbrady/sympy,iamutkarshtiwari/sympy,saurabhjn76/sympy,Titan-C/sympy,skidzo/sympy,Sumith1896/sympy,wyom/sympy,shipci/sympy,iamutkarshtiwari/sympy,amitjamadagni/sympy,wyom/sympy,liangjiaxing/sympy,shikil/sympy,VaibhavAgarwalVA/sympy,dqnykamp/sympy,ga7g08/sympy,Shaswat27/sympy,sampadsaha5/sympy,ChristinaZografou/sympy,hrashk/sympy,AkademieOlympia/sympy,Curious72/sympy,drufat/sympy,postvakje/sympy,AunShiLord/sympy,pandeyadarsh/sympy,drufat/sympy,cswiercz/sympy,cswiercz/sympy,yukoba/sympy,wyom/sympy,jaimahajan1997/sympy,kaichogami/sympy,AunShiLord/sympy,jbbskinny/sympy,Designist/sympy,abloomston/sympy,cccfran/sympy,lidavidm/sympy,lindsayad/sympy,beni55/sympy,ga7g08/sympy,chaffra/sympy,mafiya69/sympy,Titan-C/sympy,maniteja123/sympy,atsao72/sympy,grevutiu-gabriel/sympy,dqnykamp/sympy,liangjiaxing/sympy,jaimahajan1997/sympy,kaushik94/sympy,bukzor/sympy,moble/sympy,Mitchkoens/sympy,grevutiu-gabriel/sympy,shikil/sympy,wanglongqi/sympy,kevalds51/sympy,beni55/sympy,bukzor/sympy,emon10005/sympy,lindsayad/sympy,kevalds51/sympy,diofant/diofant,hargup/sympy,asm666/sympy,aktech/sympy,mafiya69/sympy,farhaanbukhsh/sympy,Sumith1896/sympy,rahuldan/sympy,cccfran/sympy,mcdaniel67/sympy,jamesblunt/sympy,rahuldan/sympy,sahilshekhawat/sympy,madan96/sympy,Davidjohnwilson/sympy,Titan-C/sympy,yukoba/sympy,Sumith1896/sympy,AunShiLord/sympy,AkademieOlympia/sympy,debugger22/sympy,ahhda/sympy,vipulroxx/sympy,atreyv/sympy,garvitr/sympy,kumarkrishna/sympy,sahmed95/sympy,madan96/sympy,yashsharan/sympy,postvakje/sympy,wanglongqi/sympy,meghana1995/sympy,MridulS/sympy,dqnykamp/sympy,kevalds51/sympy,chaffra/sympy,oliverlee/sympy,hrashk/sympy,jbbskinny/sympy,amitjamadagni/sympy,jerli/sympy,souravsingh/sympy,Curious72/sympy,Vishluck/sympy,abhiii5459/sympy,jerli/sympy,iamutkarshtiwari/sympy,postvakje/sympy,Designist/sympy,Arafatk/sympy,kaichogami/sympy,skirpichev/omg,jamesblunt/sympy,atsao72/sympy,kmacinnis/sympy,atsao72/sympy,Davidjohnwilson/sympy,debugger22/sympy,toolforger/sympy,abloomston/sympy,vipulroxx/sympy,maniteja123/sympy,emon10005/sympy,Shaswat27/sympy,yukoba/sympy,Mitchkoens/sympy,Curious72/sympy,kmacinnis/sympy,jbbskinny/sympy,shikil/sympy,kumarkrishna/sympy,shipci/sympy,Arafatk/sympy,MridulS/sympy,saurabhjn76/sympy,mcdaniel67/sympy,VaibhavAgarwalVA/sympy,kmacinnis/sympy