Replace tests with asserts.
Replace tests with asserts.

VaibhavAgarwalVA/sympy,skidzo/sympy,saurabhjn76/sympy,ChristinaZografou/sympy,souravsingh/sympy,Titan-C/sympy,jbbskinny/sympy,postvakje/sympy,postvakje/sympy,oliverlee/sympy,souravsingh/sympy,kaushik94/sympy,moble/sympy,kevalds51/sympy,kaushik94/sympy,kaichogami/sympy,VaibhavAgarwalVA/sympy,mcdaniel67/sympy,yashsharan/sympy,mafiya69/sympy,maniteja123/sympy,wanglongqi/sympy,jaimahajan1997/sympy,cswiercz/sympy,iamutkarshtiwari/sympy,aktech/sympy,Davidjohnwilson/sympy,wanglongqi/sympy,kevalds51/sympy,lindsayad/sympy,debugger22/sympy,Titan-C/sympy,ga7g08/sympy,kaichogami/sympy,mcdaniel67/sympy,farhaanbukhsh/sympy,mcdaniel67/sympy,emon10005/sympy,abhiii5459/sympy,aktech/sympy,ChristinaZografou/sympy,oliverlee/sympy,kaichogami/sympy,MechCoder/sympy,farhaanbukhsh/sympy,madan96/sympy,jerli/sympy,yukoba/sympy,chaffra/sympy,Arafatk/sympy,yashsharan/sympy,maniteja123/sympy,AkademieOlympia/sympy,atreyv/sympy,Arafatk/sympy,hargup/sympy,hargup/sympy,souravsingh/sympy,ChristinaZografou/sympy,moble/sympy,saurabhjn76/sympy,lindsayad/sympy,AkademieOlympia/sympy,Shaswat27/sympy,Curious72/sympy,debugger22/sympy,Vishluck/sympy,Gadal/sympy,saurabhjn76/sympy,mafiya69/sympy,cswiercz/sympy,Arafatk/sympy,Vishluck/sympy,farhaanbukhsh/sympy,debugger22/sympy,Curious72/sympy,chaffra/sympy,sahmed95/sympy,atreyv/sympy,jerli/sympy,abhiii5459/sympy,aktech/sympy,sampadsaha5/sympy,iamutkarshtiwari/sympy,atreyv/sympy,abhiii5459/sympy,sahmed95/sympy,emon10005/sympy,drufat/sympy,hargup/sympy,lindsayad/sympy,Shaswat27/sympy,sampadsaha5/sympy,wanglongqi/sympy,MechCoder/sympy,mafiya69/sympy,Gadal/sympy,chaffra/sympy,ahhda/sympy,Vishluck/sympy,Titan-C/sympy,Shaswat27/sympy,sampadsaha5/sympy,VaibhavAgarwalVA/sympy,kevalds51/sympy,jerli/sympy,moble/sympy,cswiercz/sympy,sahmed95/sympy,drufat/sympy,Davidjohnwilson/sympy,ahhda/sympy,AkademieOlympia/sympy,jaimahajan1997/sympy,skidzo/sympy,Curious72/sympy,emon10005/sympy,jaimahajan1997/sympy,Davidjohnwilson/sympy,ga7g08/sympy,skidzo/sympy,jbbskinny/sympy,madan96/sympy,yukoba/sympy,madan96/sympy,iamutkarshtiwari/sympy,Gadal/sympy,yukoba/sympy,oliverlee/sympy,kaushik94/sympy,jbbskinny/sympy,ahhda/sympy,MechCoder/sympy,rahuldan/sympy,maniteja123/sympy,postvakje/sympy,drufat/sympy,yashsharan/sympy,ga7g08/sympy,rahuldan/sympy,rahuldan/sympy