99 lines
3.2 KiB
Nim
99 lines
3.2 KiB
Nim
import std/sequtils
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import std/sugar
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import std/random
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import std/strutils
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import ../../../asynctest
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import pkg/questionable/results
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import pkg/constantine/math/arithmetic
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import pkg/constantine/math/io/io_fields
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import pkg/poseidon2/io
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import pkg/poseidon2
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import pkg/chronos
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import pkg/codex/chunker
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import pkg/codex/stores
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import pkg/codex/blocktype as bt
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import pkg/codex/contracts/requests
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import pkg/codex/contracts
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import pkg/codex/merkletree
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import pkg/codex/stores/cachestore
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import pkg/codex/slots/types
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import pkg/codex/slots/sampler/utils
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import pkg/codex/utils/json
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import ../backends/helpers
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import ../../helpers
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import ../../examples
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import ../../merkletree/helpers
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asyncchecksuite "Test proof sampler utils":
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let
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cellsPerBlock = DefaultBlockSize div DefaultCellSize
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var
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inputData: string
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inputJson: JsonNode
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proofInput: ProofInputs[Poseidon2Hash]
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setup:
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inputData = readFile("tests/circuits/fixtures/input.json")
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inputJson = !JsonNode.parse(inputData)
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proofInput = Poseidon2Hash.jsonToProofInput(inputJson)
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test "Extract low bits":
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proc extract(value: uint64, nBits: int): uint64 =
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let big = toF(value).toBig()
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return extractLowBits(big, nBits)
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check:
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extract(0x88, 4) == 0x8.uint64
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extract(0x88, 7) == 0x8.uint64
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extract(0x9A, 5) == 0x1A.uint64
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extract(0x9A, 7) == 0x1A.uint64
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extract(0x1248, 10) == 0x248.uint64
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extract(0x1248, 12) == 0x248.uint64
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extract(0x1248306A560C9AC0.uint64, 10) == 0x2C0.uint64
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extract(0x1248306A560C9AC0.uint64, 12) == 0xAC0.uint64
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extract(0x1248306A560C9AC0.uint64, 50) == 0x306A560C9AC0.uint64
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extract(0x1248306A560C9AC0.uint64, 52) == 0x8306A560C9AC0.uint64
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test "Can find single slot-cell index":
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proc slotCellIndex(i: Natural): Natural =
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return cellIndex(proofInput.entropy, proofInput.slotRoot, proofInput.nCellsPerSlot, i)
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proc getExpectedIndex(i: int): Natural =
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let
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hash = Sponge.digest(@[proofInput.entropy, proofInput.slotRoot, toF(i)], rate = 2)
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return int(extractLowBits(hash.toBig(), ceilingLog2(proofInput.nCellsPerSlot)))
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check:
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slotCellIndex(1) == getExpectedIndex(1)
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slotCellIndex(2) == getExpectedIndex(2)
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slotCellIndex(3) == getExpectedIndex(3)
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test "Can find sequence of slot-cell indices":
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proc slotCellIndices(n: int): seq[Natural] =
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cellIndices(proofInput.entropy, proofInput.slotRoot, numCells = proofInput.nCellsPerSlot, n)
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proc getExpectedIndices(n: int): seq[Natural] =
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return collect(newSeq, (for i in 1..n: cellIndex(proofInput.entropy, proofInput.slotRoot, proofInput.nCellsPerSlot, i)))
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check:
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slotCellIndices(3) == getExpectedIndices(3)
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for (input, expected) in [(10, 0), (31, 0), (32, 1), (63, 1), (64, 2)]:
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test "Can get slotBlockIndex from slotCellIndex (" & $input & " -> " & $expected & ")":
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let slotBlockIndex = toBlkInSlot(input, numCells = cellsPerBlock)
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check:
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slotBlockIndex == expected
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for (input, expected) in [(10, 10), (31, 31), (32, 0), (63, 31), (64, 0)]:
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test "Can get blockCellIndex from slotCellIndex (" & $input & " -> " & $expected & ")":
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let blockCellIndex = toCellInBlk(input, numCells = cellsPerBlock)
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check:
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blockCellIndex == expected
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