Added exception test in DirectoryTest.cs
Added exception test in DirectoryTest.cs



MetSystem/Cosmos,MetSystem/Cosmos,CosmosOS/Cosmos,fanoI/Cosmos,MyvarHD/Cosmos,fanoI/Cosmos,zarlo/Cosmos,MetSystem/Cosmos,tgiphil/Cosmos,sgetaz/Cosmos,fanoI/Cosmos,tgiphil/Cosmos,Cyber4/Cosmos,zdimension/Cosmos,zhangwenquan/Cosmos,tgiphil/Cosmos,zhangwenquan/Cosmos,trivalik/Cosmos,MyvarHD/Cosmos,sgetaz/Cosmos,kant2002/Cosmos-1,Cyber4/Cosmos,zarlo/Cosmos,kant2002/Cosmos-1,sgetaz/Cosmos,zdimension/Cosmos,jp2masa/Cosmos,trivalik/Cosmos,MyvarHD/Cosmos,jp2masa/Cosmos,MyvarHD/Cosmos,zdimension/Cosmos,Cyber4/Cosmos,zarlo/Cosmos,Cyber4/Cosmos,zarlo/Cosmos,MetSystem/Cosmos,MetSystem/Cosmos,CosmosOS/Cosmos,zhangwenquan/Cosmos,CosmosOS/Cosmos,zhangwenquan/Cosmos,zdimension/Cosmos,kant2002/Cosmos-1,zhangwenquan/Cosmos,sgetaz/Cosmos,CosmosOS/Cosmos,Cyber4/Cosmos,zdimension/Cosmos,trivalik/Cosmos,MyvarHD/Cosmos,jp2masa/Cosmos,sgetaz/Cosmos,kant2002/Cosmos-1