Added more test related to Basic()
Added more test related to Basic()

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