test: add tests for utils

[murrayee]

Added test coverage for utils bytes.ts

toHex
fromHex
toHexString

Current coverage： 87.5%

[CLAassistant]

All committers have signed the CLA.

[dapplion]

Thanks! Can you write the tests in a TestCase[] pattern to reduce boilerplate and make it easier to audit?

See example

lodestar/packages/utils/test/unit/retry.test.ts

Line 17 in fa30bcf

const testCases: TestCase[] = [

[murrayee]

Thanks! Can you write the tests in a TestCase[] pattern to reduce boilerplate and make it easier to audit?

See example

lodestar/packages/utils/test/unit/retry.test.ts

Line 17 in fa30bcf

const testCases: TestCase[] = [

Thanks！ I've never written tests like this before, So perfect ！！

[dapplion]

Looks great! Thank you for the contribution

[nflaig]

lgtm, thanks for the updates!

[wemeetagain]

🎉 This PR is included in v1.13.0 🎉