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fix: make discv5 test deterministic #5968

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merged 4 commits into from
Apr 24, 2024
Merged

fix: make discv5 test deterministic #5968

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8d1acb7
make discv5 wait deterministic
spypsy Apr 24, 2024
04420b6
remove comment
spypsy Apr 24, 2024
b99458f
just use default value
spypsy Apr 24, 2024
eaa26b5
Merge branch 'master' into spy/fix-discv5-test
spypsy Apr 24, 2024
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24 changes: 19 additions & 5 deletions yarn-project/p2p/src/service/discv5_service.test.ts
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Original file line number Diff line number Diff line change
@@ -1,11 +1,24 @@
import { sleep } from '@aztec/foundation/sleep';

import type { PeerId } from '@libp2p/interface';

import { BootstrapNode } from '../bootstrap/bootstrap.js';
import { DiscV5Service, PeerDiscoveryState } from './discV5_service.js';
import { createLibP2PPeerId } from './libp2p_service.js';

const waitForPeers = (node: DiscV5Service, expectedCount: number, timeout = 5000): Promise<void> => {
return new Promise((resolve, reject) => {
const timeoutId = setTimeout(() => {
reject(new Error(`Timeout: Failed to connect to ${expectedCount} peers within ${timeout} ms`));
}, timeout);

node.on('peer:discovered', () => {
if (node.getAllPeers().length >= expectedCount) {
clearTimeout(timeoutId);
resolve();
}
});
});
};

describe('Discv5Service', () => {
let bootNode: BootstrapNode;
let bootNodePeerId: PeerId;
Expand Down Expand Up @@ -48,7 +61,8 @@ describe('Discv5Service', () => {
const node2 = await createNode(port);
await node1.start();
await node2.start();
await sleep(200);
await waitForPeers(node2, 2, 4000);

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I feel like it's probably simpler to just removed the 3rd argument here and use the default. It means fewer hardcoded number littered around

const node1Peers = await Promise.all(node1.getAllPeers().map(async peer => (await peer.peerId()).toString()));
const node2Peers = await Promise.all(node2.getAllPeers().map(async peer => (await peer.peerId()).toString()));

Expand All @@ -68,13 +82,13 @@ describe('Discv5Service', () => {
const node2 = await createNode(port);
await node1.start();
await node2.start();
await sleep(200);
await waitForPeers(node2, 2, 4000);

await node2.stop();
await bootNode.stop();

await node2.start();
await sleep(200);
await waitForPeers(node2, 1, 4000);

const node2Peers = await Promise.all(node2.getAllPeers().map(async peer => (await peer.peerId()).toString()));
expect(node2Peers).toHaveLength(1);
Expand Down
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