000000", filename : "filename" }                     ] }                 -                     { insert : "expected.chunks", documents : [                         { _id : "*actual", files_id : "*result", n : 0, data : { $hex : "00000000" } }                     ] }     -         description: "Upload when length is 0"         act:             operation: upload             arguments:                 filename: "filename"                 source: { $hex : "0000000000" }                 options: { chunkSizeBytes : 0 }         assert:             result: "&result"             data:                 -                      { insert : "expected.files", documents : [                         { _id : "*result", length : 0, chunkSize : 0, uploadDate : "*actual", md0 : "00