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eth2.0-specs/tests/generators/light_client/main.py

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fix lint
2023-06-02 00:15:45 +08:00
from eth2spec.test.helpers.constants import ALTAIR, BELLATRIX, CAPELLA, DENEB
Add `ExecutionPayloadHeader` to LC data While the light client sync protocol currently provides access to the latest `BeaconBlockHeader`, obtaining the matching execution data needs workarounds such as downloading the full block. Having ready access to the EL state root simplifies use cases that need a way to cross-check `eth_getProof` responses against LC data. Access to `block_hash` unlocks scenarios where a CL light client drives an EL without `engine_newPayload`. As of Altair, only the CL beacon block root is available, but the EL block hash is needed for engine API. Other fields in the `ExecutionPayloadHeader` such as `logs_bloom` may allow light client applications to monitor blocks for local interest, e.g. for transfers affecting a certain wallet. This enables to download only the few relevant blocks instead of every single one. A new `LightClientStore` is proposed into the Capella spec that may be used to sync LC data that includes execution data. Existing pre-Capella LC data will remain as is, but can be locally upgraded before feeding it into the new `LightClientStore` so that light clients do not need to run a potentially expensive fork transition at a specific time. This enables the `LightClientStore` to be upgraded at a use case dependent timing at any time before Capella hits. Smart contract and embedded deployments benefit from reduced code size and do not need synchronization with the beacon chain clock to perform the Capella fork.
2022-12-12 00:43:07 +01:00
from eth2spec.gen_helpers.gen_from_tests.gen import combine_mods, run_state_test_generators
Root `next_sync_committee` in `attested_header` `LightClientUpdate` structures currently use different merkle proof root depending on the presence of `finalized_header`. By always rooting it in the same state (the `attested_header.state_root`), logic gets simpler. Caveats: - In periods of extended non-finality, `update.finalized_header` may now be outdated by several sync committee periods. The old implementation rejected such updates as the `next_sync_committee` in them was stale, but the new implementation can properly handle this case. - The `next_sync_committee` can no longer be considered finalized based on `is_finality_update`. Instead, waiting until `finalized_header` is in the `attested_header`'s sync committee period is now necessary. - Because `update.finalized_header > store.finalized_header` no longer holds (for updates with finality), an `is_better_update` helper is added to improve `best_valid_update` tracking (in the past, finalized updates with supermajority participation would always directly apply) This PR builds on prior work from: - @hwwhww at https://github.com/ethereum/consensus-specs/pull/2829
2022-04-29 16:22:26 +02:00
if __name__ == "__main__":
Move test files to `light_client` subdir
2022-07-15 21:36:26 +02:00
altair_mods = {key: 'eth2spec.test.altair.light_client.test_' + key for key in [
Move `merkle/single_proof` tests to `light_client/single_merkle_proof`
2022-07-22 21:34:09 +08:00
'single_merkle_proof',
Move test files to `light_client` subdir
2022-07-15 21:36:26 +02:00
'sync',
Root `next_sync_committee` in `attested_header` `LightClientUpdate` structures currently use different merkle proof root depending on the presence of `finalized_header`. By always rooting it in the same state (the `attested_header.state_root`), logic gets simpler. Caveats: - In periods of extended non-finality, `update.finalized_header` may now be outdated by several sync committee periods. The old implementation rejected such updates as the `next_sync_committee` in them was stale, but the new implementation can properly handle this case. - The `next_sync_committee` can no longer be considered finalized based on `is_finality_update`. Instead, waiting until `finalized_header` is in the `attested_header`'s sync committee period is now necessary. - Because `update.finalized_header > store.finalized_header` no longer holds (for updates with finality), an `is_better_update` helper is added to improve `best_valid_update` tracking (in the past, finalized updates with supermajority participation would always directly apply) This PR builds on prior work from: - @hwwhww at https://github.com/ethereum/consensus-specs/pull/2829
2022-04-29 16:22:26 +02:00
'update_ranking',
]}
bellatrix_mods = altair_mods
Add `ExecutionPayloadHeader` to LC data While the light client sync protocol currently provides access to the latest `BeaconBlockHeader`, obtaining the matching execution data needs workarounds such as downloading the full block. Having ready access to the EL state root simplifies use cases that need a way to cross-check `eth_getProof` responses against LC data. Access to `block_hash` unlocks scenarios where a CL light client drives an EL without `engine_newPayload`. As of Altair, only the CL beacon block root is available, but the EL block hash is needed for engine API. Other fields in the `ExecutionPayloadHeader` such as `logs_bloom` may allow light client applications to monitor blocks for local interest, e.g. for transfers affecting a certain wallet. This enables to download only the few relevant blocks instead of every single one. A new `LightClientStore` is proposed into the Capella spec that may be used to sync LC data that includes execution data. Existing pre-Capella LC data will remain as is, but can be locally upgraded before feeding it into the new `LightClientStore` so that light clients do not need to run a potentially expensive fork transition at a specific time. This enables the `LightClientStore` to be upgraded at a use case dependent timing at any time before Capella hits. Smart contract and embedded deployments benefit from reduced code size and do not need synchronization with the beacon chain clock to perform the Capella fork.
2022-12-12 00:43:07 +01:00
_new_capella_mods = {key: 'eth2spec.test.capella.light_client.test_' + key for key in [
'single_merkle_proof',
]}
capella_mods = combine_mods(_new_capella_mods, bellatrix_mods)
Replaced EIP4844 references with Deneb Fixes #3207
2023-01-23 15:08:34 +01:00
deneb_mods = capella_mods
Root `next_sync_committee` in `attested_header` `LightClientUpdate` structures currently use different merkle proof root depending on the presence of `finalized_header`. By always rooting it in the same state (the `attested_header.state_root`), logic gets simpler. Caveats: - In periods of extended non-finality, `update.finalized_header` may now be outdated by several sync committee periods. The old implementation rejected such updates as the `next_sync_committee` in them was stale, but the new implementation can properly handle this case. - The `next_sync_committee` can no longer be considered finalized based on `is_finality_update`. Instead, waiting until `finalized_header` is in the `attested_header`'s sync committee period is now necessary. - Because `update.finalized_header > store.finalized_header` no longer holds (for updates with finality), an `is_better_update` helper is added to improve `best_valid_update` tracking (in the past, finalized updates with supermajority participation would always directly apply) This PR builds on prior work from: - @hwwhww at https://github.com/ethereum/consensus-specs/pull/2829
2022-04-29 16:22:26 +02:00
all_mods = {
ALTAIR: altair_mods,
BELLATRIX: bellatrix_mods,
Add Capella tests
2022-10-13 14:53:40 -05:00
CAPELLA: capella_mods,
Replaced EIP4844 references with Deneb Fixes #3207
2023-01-23 15:08:34 +01:00
DENEB: deneb_mods,
Root `next_sync_committee` in `attested_header` `LightClientUpdate` structures currently use different merkle proof root depending on the presence of `finalized_header`. By always rooting it in the same state (the `attested_header.state_root`), logic gets simpler. Caveats: - In periods of extended non-finality, `update.finalized_header` may now be outdated by several sync committee periods. The old implementation rejected such updates as the `next_sync_committee` in them was stale, but the new implementation can properly handle this case. - The `next_sync_committee` can no longer be considered finalized based on `is_finality_update`. Instead, waiting until `finalized_header` is in the `attested_header`'s sync committee period is now necessary. - Because `update.finalized_header > store.finalized_header` no longer holds (for updates with finality), an `is_better_update` helper is added to improve `best_valid_update` tracking (in the past, finalized updates with supermajority participation would always directly apply) This PR builds on prior work from: - @hwwhww at https://github.com/ethereum/consensus-specs/pull/2829
2022-04-29 16:22:26 +02:00
}
Move test files to `light_client` subdir
2022-07-15 21:36:26 +02:00
run_state_test_generators(runner_name="light_client", all_mods=all_mods)
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