Add test for MechanicsLatexPrinter.
Add test for MechanicsLatexPrinter.

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