Fix unit tests broken by new ArgumentNullExceptions thrown
Fix unit tests broken by new ArgumentNullExceptions thrown

chocolatey/nuget-chocolatey,pratikkagda/nuget,zskullz/nuget,rikoe/nuget,pratikkagda/nuget,jmezach/NuGet2,mrward/NuGet.V2,xoofx/NuGet,mono/nuget,ctaggart/nuget,pratikkagda/nuget,alluran/node.net,OneGet/nuget,ctaggart/nuget,RichiCoder1/nuget-chocolatey,chocolatey/nuget-chocolatey,GearedToWar/NuGet2,dolkensp/node.net,mrward/nuget,mrward/nuget,mrward/NuGet.V2,dolkensp/node.net,mono/nuget,RichiCoder1/nuget-chocolatey,ctaggart/nuget,oliver-feng/nuget,oliver-feng/nuget,pratikkagda/nuget,jholovacs/NuGet,jmezach/NuGet2,jmezach/NuGet2,GearedToWar/NuGet2,GearedToWar/NuGet2,jholovacs/NuGet,chocolatey/nuget-chocolatey,oliver-feng/nuget,alluran/node.net,OneGet/nuget,jmezach/NuGet2,mono/nuget,alluran/node.net,zskullz/nuget,OneGet/nuget,indsoft/NuGet2,chocolatey/nuget-chocolatey,antiufo/NuGet2,mrward/nuget,jmezach/NuGet2,indsoft/NuGet2,mrward/nuget,mrward/NuGet.V2,ctaggart/nuget,rikoe/nuget,antiufo/NuGet2,indsoft/NuGet2,GearedToWar/NuGet2,GearedToWar/NuGet2,RichiCoder1/nuget-chocolatey,mrward/NuGet.V2,mrward/NuGet.V2,indsoft/NuGet2,RichiCoder1/nuget-chocolatey,antiufo/NuGet2,akrisiun/NuGet,indsoft/NuGet2,chocolatey/nuget-chocolatey,RichiCoder1/nuget-chocolatey,dolkensp/node.net,pratikkagda/nuget,xoofx/NuGet,alluran/node.net,kumavis/NuGet,jholovacs/NuGet,xoofx/NuGet,dolkensp/node.net,zskullz/nuget,xoofx/NuGet,jholovacs/NuGet,rikoe/nuget,oliver-feng/nuget,OneGet/nuget,oliver-feng/nuget,pratikkagda/nuget,mrward/nuget,antiufo/NuGet2,jholovacs/NuGet,mono/nuget,xoofx/NuGet,mrward/nuget,kumavis/NuGet,jholovacs/NuGet,chocolatey/nuget-chocolatey,antiufo/NuGet2,GearedToWar/NuGet2,xoofx/NuGet,akrisiun/NuGet,antiufo/NuGet2,mrward/NuGet.V2,zskullz/nuget,indsoft/NuGet2,jmezach/NuGet2,oliver-feng/nuget,RichiCoder1/nuget-chocolatey,rikoe/nuget