}

			gotYAML := util.ToYAML(root)
			diff := util.YAMLDiff(gotYAML, tt.want)
			if diff != "" {
				t.Errorf("%s: (got:-, want:+):\n%s\n", tt.desc, diff)
			}
		})
	}
}

func TestWriteNode(t *testing.T) {
	testTreeYAML := `
a:
  b:
    c: val1
    list1:
    - i1: val1
    - i2: val2
    - i3a: key1
      i3b:
        list2:
        - i1: val1
        - i2: val2