// Test if directory subdir exists for various depths
assertTrue(!(ws.child("empty").child("subdir").exists()));
assertTrue(!(ws.child("files").child("subdir").exists()));
assertTrue(ws.child("immediates").child("subdir").exists());
assertTrue(ws.child("infinity").child("subdir").exists());
// Test if file subdir/file3 exists for various depths
assertTrue(!(ws.child("empty").child("subdir").child("file3").exists()));
assertTrue(!(ws.child("files").child("subdir").child("file3").exists()));
assertTrue(!(ws.child("immediates").child("subdir").child("file3").exists()));