add assert to test
add assert to test

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