reth_downloaders/test_utils/
mod.rs

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1//! Test helper impls.
2
3#![allow(dead_code)]
4
5use crate::{bodies::test_utils::create_raw_bodies, file_codec::BlockFileCodec};
6use alloy_primitives::B256;
7use futures::SinkExt;
8use reth_primitives::{BlockBody, SealedHeader};
9use reth_testing_utils::generators::{self, random_block_range, BlockRangeParams};
10use std::{collections::HashMap, io::SeekFrom, ops::RangeInclusive};
11use tokio::{fs::File, io::AsyncSeekExt};
12use tokio_util::codec::FramedWrite;
13
14mod bodies_client;
15pub use bodies_client::TestBodiesClient;
16
17/// Metrics scope used for testing.
18pub(crate) const TEST_SCOPE: &str = "downloaders.test";
19
20/// Generate a set of bodies and their corresponding block hashes
21pub(crate) fn generate_bodies(
22    range: RangeInclusive<u64>,
23) -> (Vec<SealedHeader>, HashMap<B256, BlockBody>) {
24    let mut rng = generators::rng();
25    let blocks = random_block_range(
26        &mut rng,
27        range,
28        BlockRangeParams { parent: Some(B256::ZERO), tx_count: 0..2, ..Default::default() },
29    );
30
31    let headers = blocks.iter().map(|block| block.clone_sealed_header()).collect();
32    let bodies = blocks.into_iter().map(|block| (block.hash(), block.into_body())).collect();
33
34    (headers, bodies)
35}
36
37/// Generate a set of bodies, write them to a temporary file, and return the file along with the
38/// bodies and corresponding block hashes
39pub(crate) async fn generate_bodies_file(
40    range: RangeInclusive<u64>,
41) -> (tokio::fs::File, Vec<SealedHeader>, HashMap<B256, BlockBody>) {
42    let (headers, bodies) = generate_bodies(range);
43    let raw_block_bodies = create_raw_bodies(headers.iter().cloned(), &mut bodies.clone());
44
45    let file: File = tempfile::tempfile().unwrap().into();
46    let mut writer = FramedWrite::new(file, BlockFileCodec::default());
47
48    // rlp encode one after the other
49    for block in raw_block_bodies {
50        writer.feed(block).await.unwrap();
51    }
52    writer.flush().await.unwrap();
53
54    // get the file back
55    let mut file: File = writer.into_inner();
56    file.seek(SeekFrom::Start(0)).await.unwrap();
57    (file, headers, bodies)
58}
reth_downloaders/test_utils/mod.rs

reth_downloaders/test_utils/
mod.rs
