nim-codex/tests/codex/slots/testsampler.nim

120 lines
3.7 KiB
Nim

import std/sequtils
import std/sugar
import std/random
import std/strutils
import pkg/questionable/results
import pkg/constantine/math/arithmetic
import pkg/constantine/math/io/io_fields
import pkg/poseidon2/io
import pkg/poseidon2
import pkg/chronos
import pkg/asynctest
import pkg/nimcrypto
import pkg/codex/stores/cachestore
import pkg/codex/chunker
import pkg/codex/stores
import pkg/codex/blocktype as bt
import pkg/codex/contracts/requests
import pkg/codex/contracts
import pkg/codex/merkletree
import pkg/codex/stores/cachestore
import pkg/codex/slots/sampler
import pkg/codex/slots/builder/builder
import ../helpers
import ../examples
import ../merkletree/helpers
import testsampler_expected
import ./provingtestenv
asyncchecksuite "Test DataSampler":
var
env: ProvingTestEnvironment
dataSampler: DataSampler
blk: bt.Block
cell0Bytes: seq[byte]
cell1Bytes: seq[byte]
cell2Bytes: seq[byte]
proc createDataSampler(): Future[void] {.async.} =
dataSampler = DataSampler.new(
datasetSlotIndex,
env.localStore,
SlotsBuilder.new(env.localStore, env.manifest).tryGet()).tryGet()
setup:
randomize()
env = await createProvingTestEnvironment()
let bytes = newSeqWith(bytesPerBlock, rand(uint8))
blk = bt.Block.new(bytes).tryGet()
cell0Bytes = bytes[0..<DefaultCellSize.uint64]
cell1Bytes = bytes[DefaultCellSize.uint64..<(DefaultCellSize.uint64*2)]
cell2Bytes = bytes[(DefaultCellSize.uint64*2)..<(DefaultCellSize.uint64*3)]
await createDataSampler()
teardown:
reset(env)
reset(dataSampler)
test "Can get cell from block":
let
sample0 = dataSampler.getCell(blk.data, 0)
sample1 = dataSampler.getCell(blk.data, 1)
sample2 = dataSampler.getCell(blk.data, 2)
check:
sample0 == cell0Bytes
sample1 == cell1Bytes
sample2 == cell2Bytes
test "Can gather proof input":
let
nSamples = 3
challengeBytes = env.challenge.toBytes()
input = (await dataSampler.getProofInput(challengeBytes, nSamples)).tryget()
proc equal(a: Poseidon2Hash, b: Poseidon2Hash): bool =
a.toDecimal() == b.toDecimal()
proc toStr(proof: Poseidon2Proof): string =
let a = proof.path.mapIt(toHex(it))
join(a)
let
expectedBlockSlotProofs = getExpectedBlockSlotProofs()
expectedCellBlockProofs = getExpectedCellBlockProofs()
expectedCellData = getExpectedCellData()
expectedProof = env.datasetToSlotTree.getProof(datasetSlotIndex).tryGet()
check:
equal(input.verifyRoot, env.datasetRootHash)
equal(input.entropy, env.challenge)
input.numCells == ((bytesPerBlock * numberOfSlotBlocks) div DefaultCellSize.int).Natural
input.numSlots == totalNumberOfSlots.Natural
input.slotIndex == env.slot.slotIndex.truncate(Natural)
input.verifyProof == expectedProof
# block-slot proofs
input.samples[0].slotBlockIdx == 2
input.samples[1].slotBlockIdx == 2
input.samples[2].slotBlockIdx == 0
toStr(input.samples[0].slotProof) == expectedBlockSlotProofs[0]
toStr(input.samples[1].slotProof) == expectedBlockSlotProofs[1]
toStr(input.samples[2].slotProof) == expectedBlockSlotProofs[2]
# cell-block proofs
input.samples[0].blockCellIdx == 26
input.samples[1].blockCellIdx == 29
input.samples[2].blockCellIdx == 29
toStr(input.samples[0].cellProof) == expectedCellBlockProofs[0]
toStr(input.samples[1].cellProof) == expectedCellBlockProofs[1]
toStr(input.samples[2].cellProof) == expectedCellBlockProofs[2]
# # cell data
nimcrypto.toHex(input.samples[0].data) == expectedCellData[0]
nimcrypto.toHex(input.samples[1].data) == expectedCellData[1]
nimcrypto.toHex(input.samples[2].data) == expectedCellData[2]