r := strings.NewReader(tt.data)
		sr := NewSectionReader(r, 0, int64(len(tt.data)))
		if got := sr.Size(); got != tt.want {
			t.Errorf("Size = %v; want %v", got, tt.want)
		}
	}
}

func TestSectionReader_Max(t *testing.T) {
	r := strings.NewReader("abcdef")
	const maxint64 = 1<<63 - 1
	sr := NewSectionReader(r, 3, maxint64)
	n, err := sr.Read(make([]byte, 3))
	if n != 3 || err != nil {