# beacon_chain # Copyright (c) 2022-2023 Status Research & Development GmbH # Licensed and distributed under either of # * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT). # * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0). # at your option. This file may not be copied, modified, or distributed except according to those terms. {.used.} import # Standard library std/[json, streams], # Status libraries stew/byteutils, # Third-party yaml, # Beacon chain internals ../../../beacon_chain/spec/[forks, light_client_sync], # Test utilities ../testutil, ./fixtures_utils, ./os_ops type TestMeta = object genesis_validators_root: Eth2Digest trusted_block_root: Eth2Digest fork_digests: ForkDigests bootstrap_fork_digest: ForkDigest store_fork_digest: ForkDigest TestChecks = object finalized_slot: Slot finalized_beacon_root: Eth2Digest finalized_execution_root: Eth2Digest optimistic_slot: Slot optimistic_beacon_root: Eth2Digest optimistic_execution_root: Eth2Digest TestStepKind {.pure.} = enum ForceUpdate ProcessUpdate UpgradeStore TestStep = object case kind: TestStepKind of TestStepKind.ForceUpdate: discard of TestStepKind.ProcessUpdate: update: ForkedLightClientUpdate of TestStepKind.UpgradeStore: store_data_fork: LightClientDataFork current_slot: Slot checks: TestChecks proc loadSteps(path: string, fork_digests: ForkDigests): seq[TestStep] = let stepsYAML = os_ops.readFile(path/"steps.yaml") let steps = yaml.loadToJson(stepsYAML) result = @[] for step in steps[0]: func getChecks(c: JsonNode): TestChecks = TestChecks( finalized_slot: c["finalized_header"]["slot"].getInt().Slot, finalized_beacon_root: Eth2Digest.fromHex(c["finalized_header"]["beacon_root"].getStr()), finalized_execution_root: Eth2Digest.fromHex(c["finalized_header"]{"execution_root"}.getStr()), optimistic_slot: c["optimistic_header"]["slot"].getInt().Slot, optimistic_beacon_root: Eth2Digest.fromHex(c["optimistic_header"]["beacon_root"].getStr()), optimistic_execution_root: Eth2Digest.fromHex(c["optimistic_header"]{"execution_root"}.getStr())) if step.hasKey"force_update": let s = step["force_update"] result.add TestStep( kind: TestStepKind.ForceUpdate, current_slot: s["current_slot"].getInt().Slot, checks: s["checks"].getChecks()) elif step.hasKey"process_update": let s = step["process_update"] update_fork_digest = distinctBase(ForkDigest).fromHex(s{"update_fork_digest"}.getStr( distinctBase(fork_digests.altair).toHex())).ForkDigest update_consensus_fork = fork_digests.consensusForkForDigest(update_fork_digest) .expect("Unknown update fork " & $update_fork_digest) update_filename = s["update"].getStr() var update {.noinit.}: ForkedLightClientUpdate withLcDataFork(lcDataForkAtConsensusFork(update_consensus_fork)): when lcDataFork > LightClientDataFork.None: update = ForkedLightClientUpdate(kind: lcDataFork) update.forky(lcDataFork) = parseTest( path/update_filename & ".ssz_snappy", SSZ, lcDataFork.LightClientUpdate) else: raiseAssert "Unreachable update fork " & $update_fork_digest result.add TestStep( kind: TestStepKind.ProcessUpdate, update: update, current_slot: s["current_slot"].getInt().Slot, checks: s["checks"].getChecks()) elif step.hasKey"upgrade_store": let s = step["upgrade_store"] store_fork_digest = distinctBase(ForkDigest).fromHex( s["store_fork_digest"].getStr()).ForkDigest store_consensus_fork = fork_digests.consensusForkForDigest(store_fork_digest) .expect("Unknown store fork " & $store_fork_digest) result.add TestStep( kind: TestStepKind.UpgradeStore, store_data_fork: lcDataForkAtConsensusFork(store_consensus_fork), checks: s["checks"].getChecks()) else: doAssert false, "Unknown test step: " & $step proc runTest(path: string) = test "Light client - Sync - " & path.relativePath(SszTestsDir): # Reduce stack size by making this a `proc` proc loadTestMeta(): (RuntimeConfig, TestMeta) = let (cfg, unknowns) = readRuntimeConfig(path/"config.yaml") doAssert unknowns.len == 0, "Unknown config constants: " & $unknowns type TestMetaYaml {.sparse.} = object genesis_validators_root: string trusted_block_root: string bootstrap_fork_digest: Option[string] store_fork_digest: Option[string] let meta = block: var s = openFileStream(path/"meta.yaml") defer: close(s) var res: TestMetaYaml yaml.load(s, res) res genesis_validators_root = Eth2Digest.fromHex(meta.genesis_validators_root) trusted_block_root = Eth2Digest.fromHex(meta.trusted_block_root) fork_digests = ForkDigests.init(cfg, genesis_validators_root) bootstrap_fork_digest = distinctBase(ForkDigest).fromHex(meta.bootstrap_fork_digest.get( distinctBase(fork_digests.altair).toHex())).ForkDigest store_fork_digest = distinctBase(ForkDigest).fromHex(meta.store_fork_digest.get( distinctBase(fork_digests.altair).toHex())).ForkDigest (cfg, TestMeta( genesis_validators_root: genesis_validators_root, trusted_block_root: trusted_block_root, fork_digests: fork_digests, bootstrap_fork_digest: bootstrap_fork_digest, store_fork_digest: store_fork_digest)) let (cfg, meta) = loadTestMeta() steps = loadSteps(path, meta.fork_digests) # Reduce stack size by making this a `proc` proc loadBootstrap(): ForkedLightClientBootstrap = let bootstrap_consensus_fork = meta.fork_digests.consensusForkForDigest(meta.bootstrap_fork_digest) .expect("Unknown bootstrap fork " & $meta.bootstrap_fork_digest) var bootstrap {.noinit.}: ForkedLightClientBootstrap withLcDataFork(lcDataForkAtConsensusFork(bootstrap_consensus_fork)): when lcDataFork > LightClientDataFork.None: bootstrap = ForkedLightClientBootstrap(kind: lcDataFork) bootstrap.forky(lcDataFork) = parseTest( path/"bootstrap.ssz_snappy", SSZ, lcDataFork.LightClientBootstrap) else: raiseAssert "Unknown bootstrap fork " & $meta.bootstrap_fork_digest bootstrap # Reduce stack size by making this a `proc` proc initializeStore( bootstrap: ref ForkedLightClientBootstrap): ForkedLightClientStore = let store_consensus_fork = meta.fork_digests.consensusForkForDigest(meta.store_fork_digest) .expect("Unknown store fork " & $meta.store_fork_digest) var store {.noinit.}: ForkedLightClientStore withLcDataFork(lcDataForkAtConsensusFork(store_consensus_fork)): when lcDataFork > LightClientDataFork.None: store = ForkedLightClientStore(kind: lcDataFork) bootstrap[].migrateToDataFork(lcDataFork) store.forky(lcDataFork) = initialize_light_client_store( meta.trusted_block_root, bootstrap[].forky(lcDataFork), cfg).get else: raiseAssert "Unreachable store fork " & $meta.store_fork_digest store let bootstrap = newClone(loadBootstrap()) var store = initializeStore(bootstrap) # Reduce stack size by making this a `proc` proc processStep(step: TestStep) = withForkyStore(store): when lcDataFork > LightClientDataFork.None: case step.kind of TestStepKind.ForceUpdate: process_light_client_store_force_update( forkyStore, step.current_slot) of TestStepKind.ProcessUpdate: check step.update.kind <= lcDataFork let upgradedUpdate = step.update.migratingToDataFork(lcDataFork) res = process_light_client_update( forkyStore, upgradedUpdate.forky(lcDataFork), step.current_slot, cfg, meta.genesis_validators_root) check res.isOk of TestStepKind.UpgradeStore: check step.store_data_fork >= lcDataFork withLcDataFork(step.store_data_fork): when lcDataFork > LightClientDataFork.None: store.migrateToDataFork(lcDataFork) else: raiseAssert "Unreachable" withForkyStore(store): when lcDataFork > LightClientDataFork.None: let finalized_slot = forkyStore.finalized_header.beacon.slot finalized_beacon_root = hash_tree_root(forkyStore.finalized_header.beacon) finalized_execution_root = when lcDataFork >= LightClientDataFork.Capella: get_lc_execution_root(forkyStore.finalized_header, cfg) else: ZERO_HASH optimistic_slot = forkyStore.optimistic_header.beacon.slot optimistic_beacon_root = hash_tree_root(forkyStore.optimistic_header.beacon) optimistic_execution_root = when lcDataFork >= LightClientDataFork.Capella: get_lc_execution_root(forkyStore.optimistic_header, cfg) else: ZERO_HASH check: finalized_slot == step.checks.finalized_slot finalized_beacon_root == step.checks.finalized_beacon_root finalized_execution_root == step.checks.finalized_execution_root optimistic_slot == step.checks.optimistic_slot optimistic_beacon_root == step.checks.optimistic_beacon_root optimistic_execution_root == step.checks.optimistic_execution_root else: raiseAssert "Unreachable" for step in steps: processStep(step) suite "EF - Light client - Sync" & preset(): const presetPath = SszTestsDir/const_preset for kind, path in walkDir(presetPath, relative = true, checkDir = true): let basePath = presetPath/path/"light_client"/"sync"/"pyspec_tests" if kind != pcDir or not dirExists(basePath): continue for kind, path in walkDir(basePath, relative = true, checkDir = true): let combinedPath = basePath/path runTest(basePath/path)