tr = NewReader(&readSeeker{strings.NewReader(v.input)})
				s1, s2 = "io.ReadSeeker", "manual"
			case 4:
				tr = NewReader(&readBadSeeker{strings.NewReader(v.input)})
				s1, s2 = "ReadBadSeeker", "auto"
			case 5:
				tr = NewReader(&readBadSeeker{strings.NewReader(v.input)})
				s1, s2 = "ReadBadSeeker", "manual"
			}

			var cnt int
			var err error
			for {
				if _, err = tr.Next(); err != nil {
					break