nimbus-eth2/tests/official/test_fixture_const_sanity_c...

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# Sanity check on constants
# ----------------------------------------------------------------
{.used.}
import
# Standard library
macros, os, strutils, tables, math, json, streams,
strformat,
# Third party
yaml,
# Status libraries
unittest2,
stew/[byteutils, endians2],
# Internals
../../beacon_chain/spec/[datatypes, presets],
# Test utilities
../testutil, ./fixtures_utils
const
# TODO NimYAML issue in Altair re 2^64 - 1 and parseBiggestInt
SpecDir = currentSourcePath.rsplit(DirSep, 1)[0] /
".."/".."/"beacon_chain"/"spec"
# v1.1.0-alpha.6 doesn't seem to have this file
OldSszTestsDir* = FixturesDir / "tests-v1.1.0-alpha.5"
Config = OldSszTestsDir/const_preset/"config"/"phase0.yaml"
type
CheckedType = SomeInteger or Slot or Epoch
# Only test numerical types, constants
# defined for other type will get a placeholder low(int64) value
macro parseNumConsts(file: static string): untyped =
## Important: All const are assumed to be top-level
## i.e. not hidden behind a "when" statement
var constsToCheck: seq[(string, NimNode)]
# We can't create a table directly and quote do it
# Nim complains about the "data" field not being accessible
let fileAST = parseStmt(slurp(file))
for statement in fileAST:
if statement.kind == nnkConstSection:
for constDef in statement:
if constDef.len == 0 or
constDef[0].kind notin {nnkPragmaExpr, nnkPostfix}:
# Comments in a const section need to be skipped.
# And we only want exported constants.
continue
# Note: we assume that all const with a pragma are exported
# 1. Simple statement
#
# ConstDef
# Postfix
# Ident "*"
# Ident "HISTORICAL_ROOTS_LIMIT"
# Empty
# IntLit 16777216
#
# 2. with intdefine pragma
#
# ConstDef
# PragmaExpr
# Postfix
# Ident "*"
# Ident "MIN_GENESIS_ACTIVE_VALIDATOR_COUNT"
# Pragma
# Ident "intdefine"
# Empty
# IntLit 99
let name = if constDef[0].kind == nnkPostfix: $constDef[0][1]
else: $constDef[0][0][1]
# ConstsToCheck["HISTORICAL_ROOTS_LIMIT"} = uint64(16777216)
# Put a placeholder values for strings
let value = block:
let node = constDef[2]
quote do:
when `node` is CheckedType:
uint64(`node`)
else:
high(uint64)
constsToCheck.add (name, value)
result = quote do: `constsToCheck`
const
datatypesConsts = @(parseNumConsts(SpecDir/"datatypes.nim"))
specVersionPresetDir = SpecDir/"presets"/("v"&replace(SPEC_VERSION, ".", "_"))
when const_preset == "minimal":
const minimalConsts = @(parseNumConsts(specVersionPresetDir/"minimal.nim"))
else:
const mainnetConsts = @(parseNumConsts(specVersionPresetDir/"mainnet.nim"))
const IgnoreKeys = [
# Ignore all non-numeric types
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"CONFIG_NAME",
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"DEPOSIT_CONTRACT_ADDRESS",
"GENESIS_FORK_VERSION",
"SHARD_BLOCK_OFFSETS",
# TODO
# There constants were removed from the preset modules
# because we consider them run-time settings now, but
# it would be still useful to check them.
"MIN_GENESIS_ACTIVE_VALIDATOR_COUNT",
"MIN_GENESIS_TIME",
"GENESIS_FORK_VERSION",
"GENESIS_DELAY",
"ETH1_FOLLOW_DISTANCE",
# TODO remove when possible
"DEPOSIT_CHAIN_ID",
"DEPOSIT_NETWORK_ID"
]
func parseU32LEHex(hexValue: string): uint32 =
## Parse little-endian uint32 hex string
result = uint32.fromBytesLE hexToByteArray[4](hexValue)
proc checkConfig() =
let ConstsToCheck = toTable(
when const_preset == "minimal":
minimalConsts & datatypesConsts
else:
mainnetConsts & datatypesConsts
)
var yamlStream = openFileStream(Config)
defer: yamlStream.close()
var config = yamlStream.loadToJson()
doAssert config.len == 1
for constant, value in config[0]:
test &"{constant:<50}{value:<20}{preset()}":
if constant in IgnoreKeys:
echo &" ↶↶ Skipping {constant}"
skip()
elif constant.startsWith("DOMAIN"):
let domain = parseEnum[DomainType](constant)
let value = parseU32LEHex(value.getStr())
check: uint32(domain) == value
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elif constant.endsWith("_FORK_VERSION"):
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let value = parseU32LEHex(value.getStr())
check: ConstsToCheck[constant] == value
else:
check: ConstsToCheck[constant] == value.getBiggestInt().uint64()
suite "Official - constants & config " & preset():
checkConfig()