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Check the finalized function doesn't claim unfinalized blocks are in fact finalized

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This commit is contained in:
Luke Parker
2025-11-11 11:16:11 -05:00
parent a34f9f6164
commit c744a80d80
1 changed files with 43 additions and 14 deletions
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57
substrate/client/serai/tests/blockchain.rs
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@@ -22,7 +22,8 @@ async fn blockchain() {
.run_async(async |ops| {
let serai = serai_substrate_tests::rpc(&ops, handle).await;
let test_block = |number| {
// Check the sanity of fetching a block
let test_finalized_block = |number| {
let serai = &serai;
async move {
let block = serai.block_by_number(number).await.unwrap();
@@ -31,24 +32,52 @@ async fn blockchain() {
}
};
test_block(0).await;
test_finalized_block(0).await;
let finalized = serai.latest_finalized_block_number().await.unwrap();
test_block(finalized).await;
test_finalized_block(finalized).await;
let mut next_finalized;
{
let mut i = 0;
while {
next_finalized = serai.latest_finalized_block_number().await.unwrap();
next_finalized == finalized
} {
// Check unfinalized blocks are marked as unfinalized
'outer: {
for _ in 0 .. 10 {
tokio::time::sleep(core::time::Duration::from_secs(6)).await;
i += 1;
assert!(i < 50, "serai didn't finalize a block within five minutes");
let latest_finalized = serai.latest_finalized_block_number().await.unwrap();
// Fetch the unfinalized block after, if it exists
let Ok(block) = serai.block_by_number(latest_finalized + 1).await else {
continue;
};
// Check if it's considered finalized
let considered_finalized = serai.finalized(block.header.hash()).await.unwrap();
// Ensure the finalized block is the same, meaning this block didn't become finalized as
// we made these RPC requests
if latest_finalized != serai.latest_finalized_block_number().await.unwrap() {
continue;
}
// Check the block wasn't considered finalized
assert!(!considered_finalized);
break 'outer;
}
panic!("couldn't find an unfinalized block to check wasn't considered finalized");
};
// Check the finalized block advances
{
let mut next_finalized;
{
let mut i = 0;
while {
next_finalized = serai.latest_finalized_block_number().await.unwrap();
next_finalized == finalized
} {
tokio::time::sleep(core::time::Duration::from_secs(6)).await;
i += 1;
assert!(i < 50, "serai didn't finalize a block within five minutes");
}
}
assert!(next_finalized > finalized);
test_finalized_block(next_finalized).await;
}
assert!(next_finalized > finalized);
test_block(next_finalized).await;
println!("Finished `serai-client/blockchain` test");
})