erasure-coding: do not panic on 1 validator (#2022)

* erasure-coding: do not panic on 1 validator * tabify fuzz tests * remove num_validators length check * remove unused import * move erasure_coding_fuzzer to fuzzer * change the authors to admit (at) parity.io * Apply suggestions from code review Co-authored-by: Sergei Shulepov <sergei@parity.io> Co-authored-by: Sergei Shulepov <sergei@parity.io>
2026-07-17 00:45:42 +00:00 · 2020-11-27 22:49:00 +01:00
parent 700b40679c
commit f8181fa1f2
7 changed files with 72 additions and 70 deletions
@@ -0,0 +1,40 @@
+use polkadot_erasure_coding::*;
+use primitives::v1::{AvailableData, BlockData, PoV};
+use std::sync::Arc;
+use honggfuzz::fuzz;
+
+
+fn main() {
+	loop {
+		fuzz!(|data: &[u8]| {
+			let pov_block = PoV {
+				block_data: BlockData(data.iter().cloned().collect()),
+			};
+
+			let available_data = AvailableData {
+				pov: Arc::new(pov_block),
+				validation_data: Default::default(),
+			};
+			let chunks = obtain_chunks_v1(
+				10,
+				&available_data,
+			).unwrap();
+
+			assert_eq!(chunks.len(), 10);
+
+			// any 4 chunks should work.
+			let reconstructed: AvailableData = reconstruct_v1(
+				10,
+				[
+					(&*chunks[1], 1),
+					(&*chunks[4], 4),
+					(&*chunks[6], 6),
+					(&*chunks[9], 9),
+				].iter().cloned(),
+			).unwrap();
+
+			assert_eq!(reconstructed, available_data);
+			println!("{:?}", reconstructed);
+		});
+	}
+}