1#[test]
2fn test_bitreader_reversed() {
3 use crate::decoding::bit_reader_reverse::BitReaderReversed;
4
5 let encoded: [u8; 16] = [
6 0xC1, 0x41, 0x08, 0x00, 0x00, 0xEC, 0xC8, 0x96, 0x42, 0x79, 0xD4, 0xBC, 0xF7, 0x2C, 0xD5,
7 0x48,
8 ];
9 //just the u128 in encoded
10 let num_rev: u128 = 0x48_D5_2C_F7_BC_D4_79_42_96_C8_EC_00_00_08_41_C1;
11
12 let mut br = BitReaderReversed::new(&encoded[..]);
13 let mut accumulator = 0;
14 let mut bits_read = 0;
15 let mut x = 0;
16
17 loop {
18 x += 3;
19 //semi random access pattern
20 let mut num_bits = x % 16;
21 if bits_read > 128 - num_bits {
22 num_bits = 128 - bits_read;
23 }
24
25 let bits = br.get_bits(num_bits);
26 bits_read += num_bits;
27 accumulator |= u128::from(bits) << (128 - bits_read);
28 if bits_read >= 128 {
29 break;
30 }
31 }
32
33 if accumulator != num_rev {
34 panic!(
35 "Bitreader failed somewhere. Accumulated bits: {:?}, Should be: {:?}",
36 accumulator, num_rev
37 );
38 }
39}
40
41#[test]
42fn test_bitreader_normal() {
43 use crate::decoding::bit_reader::BitReader;
44
45 let encoded: [u8; 16] = [
46 0xC1, 0x41, 0x08, 0x00, 0x00, 0xEC, 0xC8, 0x96, 0x42, 0x79, 0xD4, 0xBC, 0xF7, 0x2C, 0xD5,
47 0x48,
48 ];
49 //just the u128 in encoded
50 let num: u128 = 0x48_D5_2C_F7_BC_D4_79_42_96_C8_EC_00_00_08_41_C1;
51
52 let mut br = BitReader::new(&encoded[..]);
53 let mut accumulator = 0;
54 let mut bits_read = 0;
55 let mut x = 0;
56
57 loop {
58 x += 3;
59 //semi random access pattern
60 let mut num_bits = x % 16;
61 if bits_read > 128 - num_bits {
62 num_bits = 128 - bits_read;
63 }
64
65 let bits = br.get_bits(num_bits).unwrap();
66 accumulator |= u128::from(bits) << bits_read;
67 bits_read += num_bits;
68 if bits_read >= 128 {
69 break;
70 }
71 }
72
73 if accumulator != num {
74 panic!(
75 "Bitreader failed somewhere. Accumulated bits: {:?}, Should be: {:?}",
76 accumulator, num
77 );
78 }
79}
80