Add tests for series acceleration code.
Add tests for series acceleration code.

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