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_ethereum_primitives::BlockBody;
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;
16use reth_primitives_traits::SealedHeader;
17
18/// Metrics scope used for testing.
19pub(crate) const TEST_SCOPE: &str = "downloaders.test";
20
21/// Generate a set of bodies and their corresponding block hashes
22pub(crate) fn generate_bodies(
23    range: RangeInclusive<u64>,
24) -> (Vec<SealedHeader>, HashMap<B256, BlockBody>) {
25    let mut rng = generators::rng();
26    let blocks = random_block_range(
27        &mut rng,
28        range,
29        BlockRangeParams { parent: Some(B256::ZERO), tx_count: 0..2, ..Default::default() },
30    );
31
32    let headers = blocks.iter().map(|block| block.clone_sealed_header()).collect();
33    let bodies = blocks.into_iter().map(|block| (block.hash(), block.into_body())).collect();
34
35    (headers, bodies)
36}
37
38/// Generate a set of bodies, write them to a temporary file, and return the file along with the
39/// bodies and corresponding block hashes
40pub(crate) async fn generate_bodies_file(
41    range: RangeInclusive<u64>,
42) -> (tokio::fs::File, Vec<SealedHeader>, HashMap<B256, BlockBody>) {
43    let (headers, bodies) = generate_bodies(range);
44    let raw_block_bodies = create_raw_bodies(headers.iter().cloned(), &mut bodies.clone());
45
46    let file: File = tempfile::tempfile().unwrap().into();
47    let mut writer = FramedWrite::new(file, BlockFileCodec::default());
48
49    // rlp encode one after the other
50    for block in raw_block_bodies {
51        writer.feed(block).await.unwrap();
52    }
53    writer.flush().await.unwrap();
54
55    // get the file back
56    let mut file: File = writer.into_inner();
57    file.seek(SeekFrom::Start(0)).await.unwrap();
58    (file, headers, bodies)
59}
reth_downloaders/test_utils/mod.rs

reth_downloaders/test_utils/
mod.rs
