web3_provider tests depend on external source

[nflaig]

The web3_provider tests in the prover package depend on a external source (our public sepolia node) to run correctly.

lodestar/packages/prover/test/unit/web3_provider.node.test.ts

Line 25 in b78cb92

urls: ["https://lodestar-sepolia.chainsafe.io"],

This behavior is not deterministic and we should not depend on external sources when running tests, especially unit tests.

[nazarhussain]

The reason we kept it as unit tests is to run the same tests in browser. All unit tests runs in the browsers in current configuration.

[philknows]

Is there a reason why we have to use our public Sepolia node for this? We do not have much redundant infrastructure for this network incase the endpoint goes down. So if it needs re-syncing, this test is blocked until it's re-synced. We have more redundant infrastructure for mainnet if we can run against any network?

[nflaig]

We have more redundant infrastructure for mainnet if we can run against any network?

This should work, I still think we should move those to e2e tests