create a mock filesystemservice and move http call. add spec
create a mock filesystemservice and move http call. add spec

SandstoneHPC/OIDE,SandstoneHPC/sandstone-ide,ResearchComputing/OIDE,SandstoneHPC/sandstone-ide,SandstoneHPC/OIDE,ResearchComputing/OIDE,ResearchComputing/OIDE,SandstoneHPC/sandstone-ide,ResearchComputing/OIDE,SandstoneHPC/OIDE