for _, tt := range RunesTests {
		a := []rune(tt.in)
		if !runesEqual(a, tt.out) {
			t.Errorf("[]rune(%q) = %v; want %v", tt.in, a, tt.out)
			continue
		}
		if !tt.lossy {
			// can only test reassembly if we didn't lose information
			s := string(a)
			if s != tt.in {
				t.Errorf("string([]rune(%q)) = %x; want %x", tt.in, s, tt.in)
			}
		}
	}
}

func TestReadByte(t *testing.T) {

		tin := []byte(tt.in)
		a := Runes(tin)
		if !runesEqual(a, tt.out) {
			t.Errorf("Runes(%q) = %v; want %v", tin, a, tt.out)
			continue
		}
		if !tt.lossy {
			// can only test reassembly if we didn't lose information
			s := string(a)
			if s != tt.in {
				t.Errorf("string(Runes(%q)) = %x; want %x", tin, s, tin)
			}
		}
	}
}

type TrimTest struct {