add test to increase Piecewise solve coverage
add test to increase Piecewise solve coverage

    Line 649 is never hit and I'm not sure that such an expr/cond
    pair would remain in Piecewise: if the condition is False it
    appears that that pair is removed, e.g.

    >>> Piecewise((x, 0))
    Piecewise()

    This is the work of Piecewise.eval, so I think this line could
    be removed but am leaving it in place.

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