Add tests for ellipse.
Add tests for ellipse.

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