Intermittent failure in contracts/test/auth.ts

[CedarMist]

  1) Auth
       Should call authenticated method:
     TypeError: Expected a valid transaction hash, but got 'Very secret message'
      at onSuccess (/home/runner/work/sapphire-paratime/sapphire-paratime/node_modules/.pnpm/@[email protected]_@[email protected][email protected]_djiantmfwzd4h5mvs2d3iacurm/node_modules/@nomicfoundation/hardhat-chai-matchers/src/internal/reverted/reverted.ts:32:17)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)
      at async Context.<anonymous> (test/auth.ts:166:5)

Unable to reproduce locally.

sapphire-paratime/contracts/test/auth.ts

Lines 151 to 166 in cf0cdd5

	// Expired bearer.
	const siweStr4 = await siweMsg('localhost', 0, new Date(Date.now() + 10)); // Expire after 0.01 seconds.
	const bearer4 = await siweAuthTests.testLogin(
	siweStr4,
	await erc191sign(siweStr4, account),
	);
	// Wait for 2 blocks. The first block may still have a timestamp earlier than the expiration time.
	await new Promise(async (r) => {
	const desiredBlockNumber = (await ethers.provider.getBlockNumber()) + 2;
	ethers.provider.on('block', (blockNumber) => {
	if (blockNumber == desiredBlockNumber) {
	r();
	}
	});
	});
	await expect(siweAuthTests.testVerySecretMessage(bearer4)).to.be.reverted;

Presumably waiting 2 blocks isn't enough, it should sleep until the timestamp has really passed, and the bearer token will have expired.

@matevz