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A few more tests

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This commit is contained in:
Igor Katson 2024-03-30 14:34:48 +00:00
parent 8f3cd291b0
commit 106511f923
1 changed files with 40 additions and 2 deletions
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42
crates/librqbit/src/chunk_tracker.rs
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@ -34,9 +34,9 @@ pub struct ChunkTracker {
// E.g. we might have more pieces, but the client asks to download only some files
// partially.
fn compute_chunk_status(lengths: &Lengths, needed_pieces: &BF) -> anyhow::Result<BF> {
if needed_pieces.len() != lengths.total_pieces() as usize {
if needed_pieces.len() < lengths.total_pieces() as usize {
anyhow::bail!(
"bug: needed_pieces.len() != lengths.total_pieces(); {} != {}",
"bug: needed_pieces.len() < lengths.total_pieces(); {} < {}",
needed_pieces.len(),
lengths.total_pieces()
);
@ -295,5 +295,43 @@ mod tests {
assert_eq!(chunks[5], true);
assert_eq!(chunks[6], false);
}
{
// A more reasonable case.
let piece_length = CHUNK_SIZE * 2;
let l = Lengths::new(piece_length as u64 * 2 + 1, piece_length).unwrap();
assert_eq!(l.total_pieces(), 3);
assert_eq!(l.default_chunks_per_piece(), 2);
assert_eq!(l.total_chunks(), 5);
{
let mut needed_pieces =
BF::from_boxed_slice(vec![0u8; l.piece_bitfield_bytes()].into_boxed_slice());
needed_pieces.set(1, true);
let chunks = compute_chunk_status(&l, &needed_pieces).unwrap();
dbg!(&chunks);
assert_eq!(chunks[0], true);
assert_eq!(chunks[1], true);
assert_eq!(chunks[2], false);
assert_eq!(chunks[3], false);
assert_eq!(chunks[4], true);
}
{
let mut needed_pieces =
BF::from_boxed_slice(vec![0u8; l.piece_bitfield_bytes()].into_boxed_slice());
needed_pieces.set(2, true);
let chunks = compute_chunk_status(&l, &needed_pieces).unwrap();
dbg!(&chunks);
assert_eq!(chunks[0], true);
assert_eq!(chunks[1], true);
assert_eq!(chunks[2], true);
assert_eq!(chunks[3], true);
assert_eq!(chunks[4], false);
}
}
}
}