SilverStripe\Assets\Folder:
  folder1:
    Name: MyAssets

SilverStripe\Assets\File:
  file1:
    Title: File1
    FileFilename: MyAssets/file1.txt
    FileHash: 55b443b60176235ef09801153cca4e6da7494a0c
    Name: file1.txt
    Parent: =>SilverStripe\Assets\Folder.folder1

SilverStripe\Forms\Tests\AssetFieldTest\TestObject:
  object1:
    Title: 'Object1'
    FileFilename: MyFiles/subfolder1/file-subfolder.txt
    FileHash: 55b443b60176235ef09801153cca4e6da7494a0c