Restores tests for proof sampler utils

This commit is contained in:
benbierens 2024-01-16 13:36:34 +01:00 committed by Dmitriy Ryajov
parent d80ddd41df
commit 4e19384a86
10 changed files with 762 additions and 85 deletions

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@ -30,8 +30,7 @@ import ../../utils
import ../../utils/asynciter
import ../../utils/digest
import ../../utils/poseidon2digest
import ./converters
import ../converters
export converters
@ -297,7 +296,7 @@ proc buildManifest*(self: SlotsBuilder): Future[?!Manifest] {.async.} =
error "Failed to map slot roots to CIDs", err = err.msg
return failure(err)
without rootProvingCidRes =? self.verifyRoot.?toSlotsRootsCid() and
without rootProvingCidRes =? self.verifyRoot.?toVerifyCid() and
rootProvingCid =? rootProvingCidRes, err: # TODO: why doesn't `.?` unpack the result?
error "Failed to map slot roots to CIDs", err = err.msg
return failure(err)
@ -350,15 +349,15 @@ proc new*(
return failure "Manifest is verifiable but slot roots are missing or invalid."
let
slotRoot = ? Poseidon2Hash.fromBytes(
( ? manifest.verifyRoot.mhash.mapFailure ).digestBytes.toArray32
).toFailure
# slotRoot = ? Poseidon2Hash.fromBytes(
# ( ? manifest.verifyRoot.mhash.mapFailure ).digestBytes.toArray32
# ).toFailure
slotRoots = manifest.slotRoots.mapIt(
? Poseidon2Hash.fromBytes(
( ? it.mhash.mapFailure ).digestBytes.toArray32
).toFailure
)
slotRoots = manifest.slotRoots.mapIt(it.fromSlotCid().toFailure)
# ? Poseidon2Hash.fromBytes(
# ( ? it.mhash.mapFailure ).digestBytes.toArray32
# ).toFailure
# )
without tree =? self.buildVerifyTree(slotRoots), err:
error "Failed to build slot roots tree", err = err.msg

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@ -1,69 +0,0 @@
## Nim-Codex
## Copyright (c) 2024 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import std/sequtils
import pkg/libp2p
import pkg/questionable
import pkg/questionable/results
import pkg/poseidon2
import pkg/poseidon2/io
import ../../codextypes
import ../../merkletree
import ../../errors
func toCellCid*(cell: Poseidon2Hash): ?!Cid =
let
cellMhash = ? MultiHash.init(Pos2Bn128MrklCodec, cell.toBytes).mapFailure
cellCid = ? Cid.init(CIDv1, CodexSlotCellCodec, cellMhash).mapFailure
success cellCid
func toSlotCid*(root: Poseidon2Hash): ?!Cid =
let
mhash = ? MultiHash.init($multiCodec("identity"), root.toBytes).mapFailure
treeCid = ? Cid.init(CIDv1, SlotRootCodec, mhash).mapFailure
success treeCid
func toSlotCids*(slotRoots: openArray[Poseidon2Hash]): ?!seq[Cid] =
success slotRoots.mapIt( ? it.toSlotCid )
func toSlotsRootsCid*(root: Poseidon2Hash): ?!Cid =
let
mhash = ? MultiHash.init($multiCodec("identity"), root.toBytes).mapFailure
treeCid = ? Cid.init(CIDv1, SlotProvingRootCodec, mhash).mapFailure
success treeCid
func toEncodableProof*(
proof: Poseidon2Proof): ?!CodexProof =
let
encodableProof = CodexProof(
mcodec: multiCodec("identity"), # copy bytes as is
index: proof.index,
nleaves: proof.nleaves,
path: proof.path.mapIt( @( it.toBytes ) ))
success encodableProof
func toVerifiableProof*(
proof: CodexProof): ?!Poseidon2Proof =
let
verifiableProof = Poseidon2Proof(
index: proof.index,
nleaves: proof.nleaves,
path: proof.path.mapIt(
? Poseidon2Hash.fromBytes(it.toArray32).toFailure
))
success verifiableProof

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@ -0,0 +1,89 @@
## Nim-Codex
## Copyright (c) 2024 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import std/sequtils
import pkg/libp2p
import pkg/stew/arrayops
import pkg/questionable
import pkg/questionable/results
import pkg/poseidon2
import pkg/poseidon2/io
import ../codextypes
import ../merkletree
import ../errors
import ../utils/digest
func toCid(hash: Poseidon2Hash, mcodec: MultiCodec, cidCodec: MultiCodec): ?!Cid =
let
mhash = ? MultiHash.init(mcodec, hash.toBytes).mapFailure
treeCid = ? Cid.init(CIDv1, cidCodec, mhash).mapFailure
success treeCid
proc toPoseidon2Hash(cid: Cid, mcodec: MultiCodec, cidCodec: MultiCodec): ?!Poseidon2Hash =
if cid.cidver != CIDv1:
return failure("Unexpected CID version")
if cid.mcodec != cidCodec:
return failure("Cid is not of expected codec. Was: " & $cid.mcodec & " but expected: " & $cidCodec)
let
mhash = ? cid.mhash.mapFailure
bytes: array[32, byte] = array[32, byte].initCopyFrom(mhash.digestBytes())
hash = Poseidon2Hash.fromBytes(bytes)
if not hash.isSome():
return failure("Unable to convert Cid to Poseidon2Hash")
return success(hash.get())
func toCellCid*(hash: Poseidon2Hash): ?!Cid =
toCid(hash, Pos2Bn128MrklCodec, CodexSlotCellCodec)
func fromCellCid*(cid: Cid): ?!Poseidon2Hash =
toPoseidon2Hash(cid, Pos2Bn128MrklCodec, CodexSlotCellCodec)
func toSlotCid*(hash: Poseidon2Hash): ?!Cid =
toCid(hash, multiCodec("identity"), SlotRootCodec)
func toSlotCids*(slotRoots: openArray[Poseidon2Hash]): ?!seq[Cid] =
success slotRoots.mapIt( ? it.toSlotCid )
func fromSlotCid*(cid: Cid): ?!Poseidon2Hash =
toPoseidon2Hash(cid, multiCodec("identity"), SlotRootCodec)
func toVerifyCid*(hash: Poseidon2Hash): ?!Cid =
toCid(hash, multiCodec("identity"), SlotProvingRootCodec)
func fromVerifyCid*(cid: Cid): ?!Poseidon2Hash =
toPoseidon2Hash(cid, multiCodec("identity"), SlotProvingRootCodec)
func toEncodableProof*(
proof: Poseidon2Proof): ?!CodexProof =
let
encodableProof = CodexProof(
mcodec: multiCodec("identity"),
index: proof.index,
nleaves: proof.nleaves,
path: proof.path.mapIt( @( it.toBytes ) ))
success encodableProof
func toVerifiableProof*(
proof: CodexProof): ?!Poseidon2Proof =
let
verifiableProof = Poseidon2Proof(
index: proof.index,
nleaves: proof.nleaves,
path: proof.path.mapIt(
? Poseidon2Hash.fromBytes(it.toArray32).toFailure
))
success verifiableProof

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@ -15,6 +15,8 @@ import pkg/poseidon2/io
import pkg/constantine/math/arithmetic
import pkg/constantine/math/io/io_fields
import ../../merkletree
func extractLowBits*[n: static int](elm: BigInt[n], k: int): uint64 =
@ -64,8 +66,7 @@ func cellIndex*(
let log2 = ceilingLog2(numCells)
doAssert( 1 shl log2 == numCells , "`numCells` is assumed to be a power of two" )
let
hash = Sponge.digest( @[ entropy, slotRoot, counter.toF ], rate = 2 )
let hash = Sponge.digest( @[ slotRoot, entropy, counter.toF ], rate = 2 )
return int( extractLowBits(hash, log2) )
@ -74,7 +75,8 @@ func cellIndices*(
slotRoot: Poseidon2Hash,
numCells: Natural, nSamples: Natural): seq[Natural] =
var indices: seq[int]
var indices: seq[Natural]
while (indices.len < nSamples):
let idx = entropy.cellIndex(slotRoot, numCells, indices.len + 1)
indices.add(idx)
let idx = cellIndex(entropy, slotRoot, numCells, indices.len + 1)
indices.add(idx.Natural)
indices

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@ -75,3 +75,8 @@ proc example*(_: type Reservation): Reservation =
proc example*(_: type MerkleProof): MerkleProof =
MerkleProof.init(3, @[MultiHash.example]).tryget()
proc example*(_: type Poseidon2Proof): Poseidon2Proof =
var example = MerkleProof[Poseidon2Hash, PoseidonKeysEnum]()
example.index = 123
example

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@ -0,0 +1,168 @@
import std/sequtils
import pkg/questionable/results
import pkg/poseidon2/io
import pkg/poseidon2
import pkg/chronos
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/indexingstrategy
import pkg/codex/slots/converters
import pkg/codex/slots/builder/builder
import pkg/codex/utils/poseidon2digest
import pkg/codex/utils/asynciter
import ../helpers
import ../merkletree/helpers
type
ProvingTestEnvironment* = ref object
# Invariant:
challenge*: Poseidon2Hash
# Variant:
localStore*: CacheStore
manifest*: Manifest
manifestBlock*: bt.Block
slot*: Slot
datasetBlocks*: seq[bt.Block]
slotTree*: Poseidon2Tree
slotRootCid*: Cid
slotRoots*: seq[Poseidon2Hash]
datasetToSlotTree*: Poseidon2Tree
datasetRootHash*: Poseidon2Hash
const
# The number of slot blocks and number of slots, combined with
# the bytes per block, make it so that there are exactly 256 cells
# in the dataset.
bytesPerBlock* = 64 * 1024
numberOfSlotBlocks* = 4
totalNumberOfSlots* = 2
datasetSlotIndex* = 1
cellsPerSlot* = (bytesPerBlock * numberOfSlotBlocks) div DefaultCellSize.int
proc createDatasetBlocks(self: ProvingTestEnvironment): Future[void] {.async.} =
let numberOfCellsNeeded = (numberOfSlotBlocks * totalNumberOfSlots * bytesPerBlock).uint64 div DefaultCellSize.uint64
var data: seq[byte] = @[]
# This generates a number of blocks that have different data, such that
# Each cell in each block is unique, but nothing is random.
for i in 0 ..< numberOfCellsNeeded:
data = data & (i.byte).repeat(DefaultCellSize.uint64)
let chunker = MockChunker.new(
dataset = data,
chunkSize = bytesPerBlock)
while true:
let chunk = await chunker.getBytes()
if chunk.len <= 0:
break
let b = bt.Block.new(chunk).tryGet()
self.datasetBlocks.add(b)
discard await self.localStore.putBlock(b)
proc createSlotTree(self: ProvingTestEnvironment, dSlotIndex: uint64): Future[Poseidon2Tree] {.async.} =
let
slotSize = (bytesPerBlock * numberOfSlotBlocks).uint64
blocksInSlot = slotSize div bytesPerBlock.uint64
datasetBlockIndexingStrategy = SteppedIndexingStrategy.new(0, self.datasetBlocks.len - 1, totalNumberOfSlots)
datasetBlockIndices = toSeq(datasetBlockIndexingStrategy.getIndicies(dSlotIndex.int))
let
slotBlocks = datasetBlockIndices.mapIt(self.datasetBlocks[it])
slotBlockRoots = slotBlocks.mapIt(Poseidon2Tree.digest(it.data, DefaultCellSize.int).tryGet())
tree = Poseidon2Tree.init(slotBlockRoots).tryGet()
treeCid = tree.root().tryGet().toSlotCid().tryGet()
for i in 0 ..< numberOfSlotBlocks:
let
blkCid = slotBlockRoots[i].toCellCid().tryGet()
proof = tree.getProof(i).tryGet().toEncodableProof().tryGet()
discard await self.localStore.putCidAndProof(treeCid, i, blkCid, proof)
return tree
proc createDatasetRootHashAndSlotTree(self: ProvingTestEnvironment): Future[void] {.async.} =
var slotTrees = newSeq[Poseidon2Tree]()
for i in 0 ..< totalNumberOfSlots:
slotTrees.add(await self.createSlotTree(i.uint64))
self.slotTree = slotTrees[datasetSlotIndex]
self.slotRootCid = slotTrees[datasetSlotIndex].root().tryGet().toSlotCid().tryGet()
self.slotRoots = slotTrees.mapIt(it.root().tryGet())
let rootsPadLeafs = newSeqWith(totalNumberOfSlots.nextPowerOfTwoPad, Poseidon2Zero)
self.datasetToSlotTree = Poseidon2Tree.init(self.slotRoots & rootsPadLeafs).tryGet()
self.datasetRootHash = self.datasetToSlotTree.root().tryGet()
proc createManifest(self: ProvingTestEnvironment): Future[void] {.async.} =
let
cids = self.datasetBlocks.mapIt(it.cid)
tree = CodexTree.init(cids).tryGet()
treeCid = tree.rootCid(CIDv1, BlockCodec).tryGet()
for i in 0 ..< self.datasetBlocks.len:
let
blk = self.datasetBlocks[i]
leafCid = blk.cid
proof = tree.getProof(i).tryGet()
discard await self.localStore.putBlock(blk)
discard await self.localStore.putCidAndProof(treeCid, i, leafCid, proof)
# Basic manifest:
self.manifest = Manifest.new(
treeCid = treeCid,
blockSize = bytesPerBlock.NBytes,
datasetSize = (bytesPerBlock * numberOfSlotBlocks * totalNumberOfSlots).NBytes)
# Protected manifest:
self.manifest = Manifest.new(
manifest = self.manifest,
treeCid = treeCid,
datasetSize = self.manifest.datasetSize,
ecK = totalNumberOfSlots,
ecM = 0
)
# Verifiable manifest:
self.manifest = Manifest.new(
manifest = self.manifest,
verifyRoot = self.datasetRootHash.toVerifyCid().tryGet(),
slotRoots = self.slotRoots.mapIt(it.toSlotCid().tryGet())
).tryGet()
self.manifestBlock = bt.Block.new(self.manifest.encode().tryGet(), codec = ManifestCodec).tryGet()
discard await self.localStore.putBlock(self.manifestBlock)
proc createSlot(self: ProvingTestEnvironment): void =
self.slot = Slot(
request: StorageRequest(
ask: StorageAsk(
slotSize: u256(bytesPerBlock * numberOfSlotBlocks)
),
content: StorageContent(
cid: $self.manifestBlock.cid
),
),
slotIndex: u256(datasetSlotIndex)
)
proc createProvingTestEnvironment*(): Future[ProvingTestEnvironment] {.async.} =
var testEnv = ProvingTestEnvironment(
challenge: toF(12345)
)
testEnv.localStore = CacheStore.new()
await testEnv.createDatasetBlocks()
await testEnv.createDatasetRootHashAndSlotTree()
await testEnv.createManifest()
testEnv.createSlot()
return testEnv

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@ -0,0 +1,47 @@
import pkg/chronos
import pkg/asynctest
import pkg/poseidon2
import pkg/poseidon2/io
import pkg/constantine/math/io/io_fields
import pkg/questionable/results
import pkg/codex/merkletree
import pkg/codex/slots/converters
import ../examples
import ../merkletree/helpers
let
hash: Poseidon2Hash = toF(12345)
suite "Converters":
test "CellBlock cid":
let
cid = toCellCid(hash).tryGet()
value = fromCellCid(cid).tryGet()
check:
hash.toDecimal() == value.toDecimal()
test "Slot cid":
let
cid = toSlotCid(hash).tryGet()
value = fromSlotCid(cid).tryGet()
check:
hash.toDecimal() == value.toDecimal()
test "Verify cid":
let
cid = toVerifyCid(hash).tryGet()
value = fromVerifyCid(cid).tryGet()
check:
hash.toDecimal() == value.toDecimal()
test "Proof":
let
codexProof = toEncodableProof(Poseidon2Proof.example).tryGet()
poseidonProof = toVerifiableProof(codexProof).tryGet()
check:
Poseidon2Proof.example == poseidonProof

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@ -0,0 +1,329 @@
# import std/sequtils
# import std/sugar
# import std/random
# import pkg/questionable/results
# import pkg/constantine/math/arithmetic
# import pkg/constantine/math/io/io_fields
# import pkg/poseidon2/types
# import pkg/poseidon2/io
# import pkg/poseidon2
# import pkg/chronos
# import pkg/asynctest
# 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
# import pkg/codex/proof/misc
# import pkg/codex/proof/types
# import ../helpers
# import ../examples
# import testdatasampler_expected
# let
# bytesPerBlock = 64 * 1024
# challenge: FieldElement = toF(12345)
# datasetRootHash: FieldElement = toF(6789)
# asyncchecksuite "Test proof datasampler - components":
# let
# numberOfSlotBlocks = 16
# slot = Slot(
# request: StorageRequest(
# ask: StorageAsk(
# slots: 10,
# slotSize: u256(bytesPerBlock * numberOfSlotBlocks),
# ),
# content: StorageContent(
# cid: $Cid.example
# )
# ),
# slotIndex: u256(3)
# )
# test "Number of cells is a power of two":
# # This is to check that the data used for testing is sane.
# proc isPow2(value: int): bool =
# let log2 = ceilingLog2(value)
# return (1 shl log2) == value
# let numberOfCells = getNumberOfCellsInSlot(slot).int
# check:
# isPow2(numberOfCells)
# test "Extract low bits":
# proc extract(value: uint64, nBits: int): uint64 =
# let big = toF(value).toBig()
# return extractLowBits(big, nBits)
# check:
# extract(0x88, 4) == 0x8.uint64
# extract(0x88, 7) == 0x8.uint64
# extract(0x9A, 5) == 0x1A.uint64
# extract(0x9A, 7) == 0x1A.uint64
# extract(0x1248, 10) == 0x248.uint64
# extract(0x1248, 12) == 0x248.uint64
# extract(0x1248306A560C9AC0.uint64, 10) == 0x2C0.uint64
# extract(0x1248306A560C9AC0.uint64, 12) == 0xAC0.uint64
# extract(0x1248306A560C9AC0.uint64, 50) == 0x306A560C9AC0.uint64
# extract(0x1248306A560C9AC0.uint64, 52) == 0x8306A560C9AC0.uint64
# test "Should calculate total number of cells in Slot":
# let
# slotSizeInBytes = (slot.request.ask.slotSize).truncate(uint64)
# expectedNumberOfCells = slotSizeInBytes div CellSize
# check:
# expectedNumberOfCells == 512
# expectedNumberOfCells == getNumberOfCellsInSlot(slot)
# asyncchecksuite "Test proof datasampler - main":
# let
# # The number of slot blocks and number of slots, combined with
# # the bytes per block, make it so that there are exactly 256 cells
# # in the dataset.
# numberOfSlotBlocks = 4
# totalNumberOfSlots = 2
# datasetSlotIndex = 1
# localStore = CacheStore.new()
# datasetToSlotProof = MerkleProof.example
# var
# manifest: Manifest
# manifestBlock: bt.Block
# slot: Slot
# datasetBlocks: seq[bt.Block]
# slotPoseidonTree: MerkleTree
# dataSampler: DataSampler
# proc createDatasetBlocks(): Future[void] {.async.} =
# let numberOfCellsNeeded = (numberOfSlotBlocks * totalNumberOfSlots * bytesPerBlock).uint64 div CellSize
# var data: seq[byte] = @[]
# # This generates a number of blocks that have different data, such that
# # Each cell in each block is unique, but nothing is random.
# for i in 0 ..< numberOfCellsNeeded:
# data = data & (i.byte).repeat(CellSize)
# let chunker = MockChunker.new(
# dataset = data,
# chunkSize = bytesPerBlock)
# while true:
# let chunk = await chunker.getBytes()
# if chunk.len <= 0:
# break
# let b = bt.Block.new(chunk).tryGet()
# datasetBlocks.add(b)
# discard await localStore.putBlock(b)
# proc createManifest(): Future[void] {.async.} =
# let
# cids = datasetBlocks.mapIt(it.cid)
# tree = MerkleTree.init(cids).tryGet()
# treeCid = tree.rootCid().tryGet()
# for index, cid in cids:
# let proof = tree.getProof(index).tryget()
# discard await localStore.putBlockCidAndProof(treeCid, index, cid, proof)
# manifest = Manifest.new(
# treeCid = treeCid,
# blockSize = bytesPerBlock.NBytes,
# datasetSize = (bytesPerBlock * numberOfSlotBlocks * totalNumberOfSlots).NBytes)
# manifestBlock = bt.Block.new(manifest.encode().tryGet(), codec = DagPBCodec).tryGet()
# proc createSlot(): void =
# slot = Slot(
# request: StorageRequest(
# ask: StorageAsk(
# slotSize: u256(bytesPerBlock * numberOfSlotBlocks)
# ),
# content: StorageContent(
# cid: $manifestBlock.cid
# ),
# ),
# slotIndex: u256(datasetSlotIndex)
# )
# proc createSlotPoseidonTree(): void =
# let
# slotSize = slot.request.ask.slotSize.truncate(uint64)
# blocksInSlot = slotSize div bytesPerBlock.uint64
# datasetSlotIndex = slot.slotIndex.truncate(uint64)
# datasetBlockIndexFirst = datasetSlotIndex * blocksInSlot
# datasetBlockIndexLast = datasetBlockIndexFirst + numberOfSlotBlocks.uint64
# slotBlocks = datasetBlocks[datasetBlockIndexFirst ..< datasetBlockIndexLast]
# slotBlockCids = slotBlocks.mapIt(it.cid)
# slotPoseidonTree = MerkleTree.init(slotBlockCids).tryGet()
# proc createDataSampler(): Future[void] {.async.} =
# dataSampler = (await DataSampler.new(
# slot,
# localStore,
# datasetRootHash,
# slotPoseidonTree,
# datasetToSlotProof
# )).tryGet()
# setup:
# await createDatasetBlocks()
# await createManifest()
# createSlot()
# discard await localStore.putBlock(manifestBlock)
# createSlotPoseidonTree()
# await createDataSampler()
# test "Number of cells is a power of two":
# # This is to check that the data used for testing is sane.
# proc isPow2(value: int): bool =
# let log2 = ceilingLog2(value)
# return (1 shl log2) == value
# let numberOfCells = getNumberOfCellsInSlot(slot).int
# check:
# isPow2(numberOfCells)
# let knownIndices = @[74.uint64, 41.uint64, 51.uint64]
# test "Can find single slot-cell index":
# proc slotCellIndex(i: int): uint64 =
# let counter: FieldElement = toF(i)
# return dataSampler.findSlotCellIndex(challenge, counter)
# proc getExpectedIndex(i: int): uint64 =
# let
# numberOfCellsInSlot = (bytesPerBlock * numberOfSlotBlocks) div CellSize.int
# slotRootHash = toF(1234) # TODO - replace with slotPoseidonTree.root when it is a poseidon tree.
# hash = Sponge.digest(@[slotRootHash, challenge, toF(i)], rate = 2)
# return extractLowBits(hash.toBig(), ceilingLog2(numberOfCellsInSlot))
# check:
# slotCellIndex(1) == getExpectedIndex(1)
# slotCellIndex(1) == knownIndices[0]
# slotCellIndex(2) == getExpectedIndex(2)
# slotCellIndex(2) == knownIndices[1]
# slotCellIndex(3) == getExpectedIndex(3)
# slotCellIndex(3) == knownIndices[2]
# test "Can find sequence of slot-cell indices":
# proc slotCellIndices(n: int): seq[uint64] =
# dataSampler.findSlotCellIndices(challenge, n)
# proc getExpectedIndices(n: int): seq[uint64] =
# return collect(newSeq, (for i in 1..n: dataSampler.findSlotCellIndex(challenge, toF(i))))
# check:
# slotCellIndices(3) == getExpectedIndices(3)
# slotCellIndices(3) == knownIndices
# let
# bytes = newSeqWith(bytesPerBlock, rand(uint8))
# blk = bt.Block.new(bytes).tryGet()
# cell0Bytes = bytes[0..<CellSize]
# cell1Bytes = bytes[CellSize..<(CellSize*2)]
# cell2Bytes = bytes[(CellSize*2)..<(CellSize*3)]
# test "Can get cell from block":
# let
# sample0 = dataSampler.getCellFromBlock(blk, 0)
# sample1 = dataSampler.getCellFromBlock(blk, 1)
# sample2 = dataSampler.getCellFromBlock(blk, 2)
# check:
# sample0 == cell0Bytes
# sample1 == cell1Bytes
# sample2 == cell2Bytes
# test "Can convert block into cells":
# let cells = dataSampler.getBlockCells(blk)
# check:
# cells.len == (bytesPerBlock div CellSize.int)
# cells[0] == cell0Bytes
# cells[1] == cell1Bytes
# cells[2] == cell2Bytes
# test "Can create mini tree for block cells":
# let miniTree = dataSampler.getBlockCellMiniTree(blk).tryGet()
# let
# cell0Proof = miniTree.getProof(0).tryGet()
# cell1Proof = miniTree.getProof(1).tryGet()
# cell2Proof = miniTree.getProof(2).tryGet()
# check:
# cell0Proof.verifyDataBlock(cell0Bytes, miniTree.root).tryGet()
# cell1Proof.verifyDataBlock(cell1Bytes, miniTree.root).tryGet()
# cell2Proof.verifyDataBlock(cell2Bytes, miniTree.root).tryGet()
# test "Can gather proof input":
# # This is the main entry point for this module, and what it's all about.
# let
# nSamples = 3
# input = (await dataSampler.getProofInput(challenge, nSamples)).tryget()
# proc equal(a: FieldElement, b: FieldElement): bool =
# a.toDecimal() == b.toDecimal()
# proc toStr(proof: MerkleProof): string =
# toHex(proof.nodesBuffer)
# let
# expectedMerkleProofs = getExpectedSlotToBlockProofs()
# expectedCellData = getExpectedCellData()
# check:
# # datasetRoot*: FieldElement
# equal(input.datasetRoot, datasetRootHash)
# # entropy*: FieldElement
# equal(input.entropy, challenge)
# # numberOfCellsInSlot*: uint64
# input.numberOfCellsInSlot == (bytesPerBlock * numberOfSlotBlocks).uint64 div CellSize
# # numberOfSlots*: uint64
# input.numberOfSlots == slot.request.ask.slots
# # datasetSlotIndex*: uint64
# input.datasetSlotIndex == slot.slotIndex.truncate(uint64)
# # slotRoot*: FieldElement
# equal(input.slotRoot, toF(1234)) # TODO - when slotPoseidonTree is a poseidon tree, its root should be a FieldElement.
# # datasetToSlotProof*: MerkleProof
# input.datasetToSlotProof == datasetToSlotProof
# # proofSamples*: seq[ProofSample]
# toStr(input.proofSamples[0].merkleProof) == expectedMerkleProofs[0]
# toStr(input.proofSamples[1].merkleProof) == expectedMerkleProofs[1]
# toStr(input.proofSamples[2].merkleProof) == expectedMerkleProofs[2]
# # cell data
# toHex(input.proofSamples[0].cellData) == expectedCellData[0]
# toHex(input.proofSamples[1].cellData) == expectedCellData[1]
# toHex(input.proofSamples[2].cellData) == expectedCellData[2]
# # input.slotToBlockProofs.mapIt(toStr(it)) == expectedSlotToBlockProofs
# # input.blockToCellProofs.mapIt(toStr(it)) == expectedBlockToCellProofs
# # toHex(input.sampleData) == expectedSampleData
# for (input, expected) in [(10, 0), (31, 0), (32, 1), (63, 1), (64, 2)]:
# test "Can get slotBlockIndex from slotCellIndex (" & $input & " -> " & $expected & ")":
# let
# slotCellIndex = input.uint64
# slotBlockIndex = dataSampler.getSlotBlockIndexForSlotCellIndex(slotCellIndex)
# check:
# slotBlockIndex == expected.uint64
# for (input, expected) in [(10, 10), (31, 31), (32, 0), (63, 31), (64, 0)]:
# test "Can get blockCellIndex from slotCellIndex (" & $input & " -> " & $expected & ")":
# let
# slotCellIndex = input.uint64
# blockCellIndex = dataSampler.getBlockCellIndexForSlotCellIndex(slotCellIndex)
# check:
# blockCellIndex == expected.uint64

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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/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/utils
import ../helpers
import ../examples
import ../merkletree/helpers
import ./provingtestenv
asyncchecksuite "Test proof sampler utils":
let knownIndices: seq[Natural] = @[90, 93, 29]
var
env: ProvingTestEnvironment
slotRoot: Poseidon2Hash
numCells: Natural
setup:
env = await createProvingTestEnvironment()
slotRoot = env.slotRoots[datasetSlotIndex]
numCells = cellsPerSlot
teardown:
reset(env)
test "Extract low bits":
proc extract(value: uint64, nBits: int): uint64 =
let big = toF(value).toBig()
return extractLowBits(big, nBits)
check:
extract(0x88, 4) == 0x8.uint64
extract(0x88, 7) == 0x8.uint64
extract(0x9A, 5) == 0x1A.uint64
extract(0x9A, 7) == 0x1A.uint64
extract(0x1248, 10) == 0x248.uint64
extract(0x1248, 12) == 0x248.uint64
extract(0x1248306A560C9AC0.uint64, 10) == 0x2C0.uint64
extract(0x1248306A560C9AC0.uint64, 12) == 0xAC0.uint64
extract(0x1248306A560C9AC0.uint64, 50) == 0x306A560C9AC0.uint64
extract(0x1248306A560C9AC0.uint64, 52) == 0x8306A560C9AC0.uint64
test "Can find single slot-cell index":
proc slotCellIndex(i: Natural): Natural =
return cellIndex(env.challenge, slotRoot, numCells, i)
proc getExpectedIndex(i: int): Natural =
let
numberOfCellsInSlot = (bytesPerBlock * numberOfSlotBlocks) div DefaultCellSize.uint64.int
hash = Sponge.digest(@[slotRoot, env.challenge, toF(i)], rate = 2)
return int(extractLowBits(hash.toBig(), ceilingLog2(numberOfCellsInSlot)))
check:
slotCellIndex(1) == getExpectedIndex(1)
slotCellIndex(1) == knownIndices[0]
slotCellIndex(2) == getExpectedIndex(2)
slotCellIndex(2) == knownIndices[1]
slotCellIndex(3) == getExpectedIndex(3)
slotCellIndex(3) == knownIndices[2]
test "Can find sequence of slot-cell indices":
proc slotCellIndices(n: int): seq[Natural] =
cellIndices(env.challenge, slotRoot, numCells, n)
proc getExpectedIndices(n: int): seq[Natural] =
return collect(newSeq, (for i in 1..n: cellIndex(env.challenge, slotRoot, numCells, i)))
check:
slotCellIndices(3) == getExpectedIndices(3)
slotCellIndices(3) == knownIndices
for (input, expected) in [(10, 0), (31, 0), (32, 1), (63, 1), (64, 2)]:
test "Can get slotBlockIndex from slotCellIndex (" & $input & " -> " & $expected & ")":
let slotBlockIndex = toBlockIdx(input, numCells = 32)
check:
slotBlockIndex == expected
for (input, expected) in [(10, 10), (31, 31), (32, 0), (63, 31), (64, 0)]:
test "Can get blockCellIndex from slotCellIndex (" & $input & " -> " & $expected & ")":
let blockCellIndex = toBlockCellIdx(input, numCells = 32)
check:
blockCellIndex == expected

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import ./slots/testslotbuilder
import ./slots/proof/testdatasampler
import ./slots/testutils
import ./slots/testsampler
import ./slots/testconverters
{.warning[UnusedImport]: off.}