nimbus-eth2/tests/official/phase0/test_fixture_operations_attestations.nim
Jacek Sieka a7a65bce42
disentangle eth2 types from the ssz library (#2785)
* reorganize ssz dependencies

This PR continues the work in
https://github.com/status-im/nimbus-eth2/pull/2646,
https://github.com/status-im/nimbus-eth2/pull/2779 as well as past
issues with serialization and type, to disentangle SSZ from eth2 and at
the same time simplify imports and exports with a structured approach.

The principal idea here is that when a library wants to introduce SSZ
support, they do so via 3 files:

* `ssz_codecs` which imports and reexports `codecs` - this covers the
basic byte conversions and ensures no overloads get lost
* `xxx_merkleization` imports and exports `merkleization` to specialize
and get access to `hash_tree_root` and friends
* `xxx_ssz_serialization` imports and exports `ssz_serialization` to
specialize ssz for a specific library

Those that need to interact with SSZ always import the `xxx_` versions
of the modules and never `ssz` itself so as to keep imports simple and
safe.

This is similar to how the REST / JSON-RPC serializers are structured in
that someone wanting to serialize spec types to REST-JSON will import
`eth2_rest_serialization` and nothing else.

* split up ssz into a core library that is independendent of eth2 types
* rename `bytes_reader` to `codec` to highlight that it contains coding
and decoding of bytes and native ssz types
* remove tricky List init overload that causes compile issues
* get rid of top-level ssz import
* reenable merkleization tests
* move some "standard" json serializers to spec
* remove `ValidatorIndex` serialization for now
* remove test_ssz_merkleization
* add tests for over/underlong byte sequences
* fix broken seq[byte] test - seq[byte] is not an SSZ type

There are a few things this PR doesn't solve:

* like #2646 this PR is weak on how to handle root and other
dontSerialize fields that "sometimes" should be computed - the same
problem appears in REST / JSON-RPC etc

* Fix a build problem on macOS

* Another way to fix the macOS builds

Co-authored-by: Zahary Karadjov <zahary@gmail.com>
2021-08-18 20:57:58 +02:00

69 lines
2.4 KiB
Nim

# beacon_chain
# Copyright (c) 2018-Present 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
os,
# Utilities
unittest2,
stew/results,
# Beacon chain internals
../../../beacon_chain/spec/beaconstate,
../../../beacon_chain/spec/datatypes/phase0,
# Test utilities
../../testutil,
../fixtures_utils,
../../helpers/debug_state
const OperationsAttestationsDir = SszTestsDir/const_preset/"phase0"/"operations"/"attestation"/"pyspec_tests"
proc runTest(identifier: string) =
# We wrap the tests in a proc to avoid running out of globals
# in the future: Nim supports up to 3500 globals
# but unittest with the macro/templates put everything as globals
# https://github.com/nim-lang/Nim/issues/12084#issue-486866402
let testDir = OperationsAttestationsDir / identifier
proc `testImpl _ operations_attestations _ identifier`() =
var prefix: string
if existsFile(testDir/"post.ssz_snappy"):
prefix = "[Valid] "
else:
prefix = "[Invalid] "
test prefix & identifier:
var cache = StateCache()
let attestation =
parseTest(testDir/"attestation.ssz_snappy", SSZ, Attestation)
var preState =
newClone(parseTest(testDir/"pre.ssz_snappy", SSZ, phase0.BeaconState))
if existsFile(testDir/"post.ssz_snappy"):
let postState =
newClone(parseTest(testDir/"post.ssz_snappy", SSZ, phase0.BeaconState))
let done = process_attestation(
preState[], attestation, {}, 0.Gwei, cache).isOk
doAssert done, "Valid attestation not processed"
check: preState[].hash_tree_root() == postState[].hash_tree_root()
reportDiff(preState, postState)
else:
let done = process_attestation(
preState[], attestation, {}, 0.Gwei, cache).isOk
doAssert done == false, "We didn't expect this invalid attestation to be processed."
`testImpl _ operations_attestations _ identifier`()
suite "Official - Phase 0 - Operations - Attestations " & preset():
for kind, path in walkDir(
OperationsAttestationsDir, relative = true, checkDir = true):
runTest(path)