Added tests for dyadic prettying printing.
Added tests for dyadic prettying printing.

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