nim-dagger/tests/codex/merkletree/generictreetests.nim

131 lines
3.2 KiB
Nim

import std/unittest
import std/sequtils
import pkg/codex/merkletree
proc testGenericTree*[H, K, U](
name: string,
data: openArray[H],
zero: H,
compress: proc(z, y: H, key: K): H,
makeTree: proc(data: seq[H]): U) =
let
data = @data
suite "Correctness tests - " & name:
test "Should build correct tree for even bottom layer":
let
expectedRoot = compress(
compress(
compress(data[0], data[1], K.KeyBottomLayer),
compress(data[2], data[3], K.KeyBottomLayer),
K.KeyNone
),
compress(
compress(data[4], data[5], K.KeyBottomLayer),
compress(data[6], data[7], K.KeyBottomLayer),
K.KeyNone
),
K.KeyNone
)
let
tree = makeTree( data[0..7] )
check:
tree.root.tryGet == expectedRoot
test "Should build correct tree for odd bottom layer":
let
expectedRoot = compress(
compress(
compress(data[0], data[1], K.KeyBottomLayer),
compress(data[2], data[3], K.KeyBottomLayer),
K.KeyNone
),
compress(
compress(data[4], data[5], K.KeyBottomLayer),
compress(data[6], zero, K.KeyOddAndBottomLayer),
K.KeyNone
),
K.KeyNone
)
let
tree = makeTree( data[0..6] )
check:
tree.root.tryGet == expectedRoot
test "Should build correct tree for even bottom and odd upper layers":
let
expectedRoot = compress(
compress(
compress(
compress(data[0], data[1], K.KeyBottomLayer),
compress(data[2], data[3], K.KeyBottomLayer),
K.KeyNone
),
compress(
compress(data[4], data[5], K.KeyBottomLayer),
compress(data[6], data[7], K.KeyBottomLayer),
K.KeyNone
),
K.KeyNone
),
compress(
compress(
compress(data[8], data[9], K.KeyBottomLayer),
zero,
K.KeyOdd
),
zero,
K.KeyOdd
),
K.KeyNone
)
let
tree = makeTree( data[0..9] )
check:
tree.root.tryGet == expectedRoot
test "Should get and validate correct proofs":
let
expectedRoot = compress(
compress(
compress(
compress(data[0], data[1], K.KeyBottomLayer),
compress(data[2], data[3], K.KeyBottomLayer),
K.KeyNone
),
compress(
compress(data[4], data[5], K.KeyBottomLayer),
compress(data[6], data[7], K.KeyBottomLayer),
K.KeyNone
),
K.KeyNone
),
compress(
compress(
compress(data[8], data[9], K.KeyBottomLayer),
zero,
K.KeyOdd
),
zero,
K.KeyOdd
),
K.KeyNone
)
let
tree = makeTree( data )
for i in 0..<data.len:
let proof = tree.getProof(i).tryGet
check:
proof.verify(tree.leaves[i], expectedRoot).isOk