120 lines
3.3 KiB
Nim
120 lines
3.3 KiB
Nim
# beacon_chain
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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unittest, sequtils, options,
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stint, nimcrypto, eth/common, blscurve, serialization/testing/generic_suite,
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../beacon_chain/spec/[datatypes, digest],
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../beacon_chain/ssz, ../beacon_chain/ssz/[navigator, dynamic_navigator]
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type
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SomeEnum = enum
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A, B, C
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Simple = object
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flag: bool
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# count: StUint[256]
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# ignored {.dontSerialize.}: string
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# data: array[256, bool]
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template reject(stmt) =
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assert(not compiles(stmt))
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static:
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assert isFixedSize(bool) == true
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assert fixedPortionSize(array[10, bool]) == 10
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assert fixedPortionSize(array[SomeEnum, uint64]) == 24
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assert fixedPortionSize(array[3..5, string]) == 12
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assert fixedPortionSize(string) == 4
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assert fixedPortionSize(seq[bool]) == 4
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assert fixedPortionSize(seq[string]) == 4
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assert isFixedSize(array[20, bool]) == true
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assert isFixedSize(Simple) == true
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assert isFixedSize(string) == false
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assert isFixedSize(seq[bool]) == false
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assert isFixedSize(seq[string]) == false
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reject fixedPortionSize(int)
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type
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ObjWithFields = object
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f0: uint8
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f1: uint32
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f2: EthAddress
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f3: MDigest[256]
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f4: seq[byte]
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f5: ValidatorIndex
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static:
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assert fixedPortionSize(ObjWithFields) == 1 + 4 + sizeof(EthAddress) + (256 div 8) + 4 + 8
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executeRoundTripTests SSZ
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type
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Foo = object
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bar: Bar
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Bar = object
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b: string
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baz: Baz
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Baz = object
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i: uint64
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proc toDigest[N: static int](x: array[N, byte]): Eth2Digest =
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result.data[0 .. N-1] = x
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suite "SSZ navigator":
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test "simple object fields":
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var foo = Foo(bar: Bar(b: "bar", baz: Baz(i: 10'u64)))
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let encoded = SSZ.encode(foo)
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check SSZ.decode(encoded, Foo) == foo
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let mountedFoo = sszMount(encoded, Foo)
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check mountedFoo.bar.b == "bar"
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let mountedBar = mountedFoo.bar
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check mountedBar.baz.i == 10'u64
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test "lists with max size":
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let a = [byte 0x01, 0x02, 0x03].toDigest
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let b = [byte 0x04, 0x05, 0x06].toDigest
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let c = [byte 0x07, 0x08, 0x09].toDigest
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let leaves = sszList(@[a, b, c], int64(1 shl 3))
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let root = hash_tree_root(leaves)
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check $root == "5248085B588FAB1DD1E03F3CD62201602B12E6560665935964F46E805977E8C5"
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let leaves2 = sszList(@[a, b, c], int64(1 shl 10))
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let root2 = hash_tree_root(leaves2)
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check $root2 == "9FB7D518368DC14E8CC588FB3FD2749BEEF9F493FEF70AE34AF5721543C67173"
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suite "SSZ dynamic navigator":
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test "navigating fields":
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var fooOrig = Foo(bar: Bar(b: "bar", baz: Baz(i: 10'u64)))
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let fooEncoded = SSZ.encode(fooOrig)
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var navFoo = DynamicSszNavigator.init(fooEncoded, Foo)
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var navBar = navFoo.navigate("bar")
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check navBar.toJson(pretty = false) == """{"b":"bar","baz":{"i":10}}"""
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var navB = navBar.navigate("b")
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check navB.toJson == "\"bar\""
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var navBaz = navBar.navigate("baz")
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var navI = navBaz.navigate("i")
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check navI.toJson == "10"
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expect KeyError:
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discard navBar.navigate("biz")
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