protected AggregateFileSystem GetCommonAggregateFileSystem(out MemoryFileSystem fs1, out MemoryFileSystem fs2, out MemoryFileSystem fs3)
{
// ----------------------------------------------
// This creates the following AggregateFileSystem
// ----------------------------------------------
// /a -> fs2
// /a -> fs1
// a.txt -> fs1
// /b -> fs1
// b.i -> fs1
// /C -> fs2
// /d -> fs2
// a.txt -> fs2
// A.txt -> fs2
// b.txt -> fs2
// c.txt1 -> fs2
// d.i -> fs2
// f.i1 -> fs2
// E -> fs2
// /b -> fs1
// b.i -> fs1
// /C -> fs2
// /d -> fs3
// A.txt -> fs3
// b.txt -> fs2
// c.txt1 -> fs3
// d.i -> fs3
// f.i1 -> fs3
// E -> fs2
fs1 = new MemoryFileSystem()
{
Name = "mem0"
};
CreateFolderStructure(fs1);
fs2 = fs1.Clone();
fs2.Name = "mem1";
fs3 = fs2.Clone();
fs3.Name = "mem2";
// Delete part of fs2 so that it will fallback to fs1
fs2.DeleteDirectory("/a/a", true);
fs2.DeleteDirectory("/a/b", true);
fs2.DeleteDirectory("/b", true);
// Delete on fs3 to fallback to fs2 and fs1
fs3.DeleteDirectory("/a", true);
fs3.DeleteDirectory("/C", true);
fs3.DeleteFile("/b.txt");
fs3.DeleteFile("/E");
var aggfs = new AggregateFileSystem(fs1);
aggfs.AddFileSystem(fs2);
aggfs.AddFileSystem(fs3);
return(aggfs);
}