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[advaita-saha]

Full fix for #3661

[advaita-saha]

@kdeme Can you look at the portal tests ?

[tersec]

/home/runner/work/nimbus-eth1/nimbus-eth1/portal/tests/beacon_network_tests/test_beacon_content.nim(190, 1) template/generic instantiation of `suite` from here
/home/runner/work/nimbus-eth1/nimbus-eth1/portal/tests/beacon_network_tests/test_beacon_content.nim(197, 5) Error: the field 'bellatrix' is not accessible.

is due to:

• enforce that non-spec/forks code can't directly access most ForkDigests nimbus-eth2#7478

Because

nimbus-eth1/portal/tests/beacon_network_tests/test_beacon_content.nim

Lines 190 to 201 in 1ed6871

	suite "Beacon Content Keys and Values":
	# TODO: These tests are less useful now and should instead be altered to
	# use the consensus test vectors to simply test if encoding / decoding works
	# fine for the different forks.
	const forkDigests = ForkDigests(
	phase0: ForkDigest([0'u8, 0, 0, 1]),
	altair: ForkDigest([0'u8, 0, 0, 2]),
	bellatrix: ForkDigest([0'u8, 0, 0, 3]),
	capella: ForkDigest([0'u8, 0, 0, 4]),
	deneb: ForkDigest([0'u8, 0, 0, 5]),
	electra: ForkDigest([0'u8, 0, 0, 6]), # TODO fulu: ForkDigest([0'u8, 0, 0, 7]),
	)

won't work anymore.

That change is intentional, and while it's of course technically possible to revert it, maintaining the design it's based on into new forks doesn't make sense. I already haven't for Gloas.

nimbus-eth1/portal/tests/beacon_network_tests/test_beacon_content.nim

Lines 30 to 45 in 1ed6871

	let
	metadata = getMetadataForNetwork("mainnet")
	genesisState =
	try:
	template genesisData(): auto =
	metadata.genesis.bakedBytes
	newClone(
	readSszForkedHashedBeaconState(
	metadata.cfg, genesisData.toOpenArray(genesisData.low, genesisData.high)
	)
	)
	except CatchableError as err:
	raiseAssert "Invalid baked-in state: " & err.msg
	genesis_validators_root = getStateField(genesisState[], genesis_validators_root)
	forkDigests = newClone ForkDigests.init(metadata.cfg, genesis_validators_root)

shows another approach, which remains viable, and if the exact contents of forkDigests is really that unimportant, the configuration information provided to ForkDigests.init can be done on the basis of convenience as well, e.g., something like ForkDigests.init(getMetadataForNetwork("mainnet"), default(Hash32)) should work fine.

[advaita-saha]

exact contents of forkDigests is really that unimportant

Then the fix is easy