# Nimbus # Copyright (c) 2018-2019 Status Research & Development GmbH # Licensed under either of # * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or # http://www.apache.org/licenses/LICENSE-2.0) # * MIT license ([LICENSE-MIT](LICENSE-MIT) or # http://opensource.org/licenses/MIT) # at your option. This file may not be copied, modified, or distributed except # according to those terms. # Test cases from https://github.com/ethereum/EIPs/blob/master/EIPS/eip-225.md import ../../nimbus/core/clique/clique_defs type TesterVote* = object ## VoterBlock represents a single block signed by a ## particular account, where the account may or may not ## have cast a Clique vote. signer*: string ##\ ## Account that signed this particular block voted*: string ##\ ## Optional value if the signer voted on adding/removing ## someone auth*: bool ##\ ## Whether the vote was to authorize (or deauthorize) checkpoint*: seq[string] ##\ ## List of authorized signers if this is an epoch block noTurn*: bool ##\ ## Initialise `NOTURN` if `true`, otherwise use `INTURN`. This is not ## part of Go ref test implementation. The flag used here to avoid what ## is implemented as `fakeDiff` kludge in the Go ref test implementation. ## ## Note that the `noTurn` value depends on the sort order of the ## calculated authorised signers account address list. These account ## addresses in turn (no pun intended) depend on the private keys of ## these accounts. Now, the private keys are generated on-the-fly by a ## PRNG which re-seeded the same for each test. So the sort order is ## predictable and the correct value of the the `noTurn` flag can be set ## by sort of experimenting with the tests (and/or refering to earlier ## woking test specs.) newbatch*: bool TestSpecs* = object ## Defining genesis and the various voting scenarios ## to test (see `votes`.) id*: int ##\ ## Test id info*: string ##\ ## Test description epoch*: int ##\ ## Number of blocks in an epoch (unset = 30000) runBack*: bool ##\ ## Set `applySnapsMinBacklog` flag signers*: seq[string] ##\ ## Initial list of authorized signers in the genesis votes*: seq[TesterVote] ##\ ## Chain of signed blocks, potentially influencing auths results*: seq[string] ##\ ## Final list of authorized signers after all blocks failure*: CliqueErrorType ##\ ## Failure if some block is invalid according to the rules const # Define the various voting scenarios to test voterSamples* = [ # clique/snapshot_test.go(108): { TestSpecs( id: 1, info: "Single signer, no votes cast", signers: @["A"], votes: @[TesterVote(signer: "A")], results: @["A"]), TestSpecs( id: 2, info: "Single signer, voting to add two others (only accept first, "& "second needs 2 votes)", signers: @["A"], votes: @[TesterVote(signer: "A", voted: "B", auth: true), TesterVote(signer: "B"), TesterVote(signer: "A", voted: "C", auth: true)], results: @["A", "B"]), TestSpecs( id: 3, info: "Two signers, voting to add three others (only accept first " & "two, third needs 3 votes already)", signers: @["A", "B"], votes: @[TesterVote(signer: "A", voted: "C", auth: true), TesterVote(signer: "B", voted: "C", auth: true), TesterVote(signer: "A", voted: "D", auth: true, noTurn: true), TesterVote(signer: "B", voted: "D", auth: true), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A", voted: "E", auth: true, noTurn: true), TesterVote(signer: "B", voted: "E", auth: true, noTurn: true)], results: @["A", "B", "C", "D"]), TestSpecs( id: 4, info: "Single signer, dropping itself (weird, but one less " & "cornercase by explicitly allowing this)", signers: @["A"], votes: @[TesterVote(signer: "A", voted: "A")]), TestSpecs( id: 5, info: "Two signers, actually needing mutual consent to drop either " & "of them (not fulfilled)", signers: @["A", "B"], votes: @[TesterVote(signer: "A", voted: "B")], results: @["A", "B"]), TestSpecs( id: 6, info: "Two signers, actually needing mutual consent to drop either " & "of them (fulfilled)", signers: @["A", "B"], votes: @[TesterVote(signer: "A", voted: "B"), TesterVote(signer: "B", voted: "B")], results: @["A"]), TestSpecs( id: 7, info: "Three signers, two of them deciding to drop the third", signers: @["A", "B", "C"], votes: @[TesterVote(signer: "A", voted: "C", noTurn: true), TesterVote(signer: "B", voted: "C", noTurn: true)], results: @["A", "B"]), TestSpecs( id: 8, info: "Four signers, consensus of two not being enough to drop anyone", signers: @["A", "B", "C", "D"], votes: @[TesterVote(signer: "A", voted: "C", noTurn: true), TesterVote(signer: "B", voted: "C", noTurn: true)], results: @["A", "B", "C", "D"]), TestSpecs( id: 9, info: "Four signers, consensus of three already being enough to " & "drop someone", signers: @["A", "B", "C", "D"], votes: @[TesterVote(signer: "A", voted: "D", noTurn: true), TesterVote(signer: "B", voted: "D", noTurn: true), TesterVote(signer: "C", voted: "D", noTurn: true)], results: @["A", "B", "C"]), TestSpecs( id: 10, info: "Authorizations are counted once per signer per target", signers: @["A", "B"], votes: @[TesterVote(signer: "A", voted: "C", auth: true), TesterVote(signer: "B"), TesterVote(signer: "A", voted: "C", auth: true), TesterVote(signer: "B"), TesterVote(signer: "A", voted: "C", auth: true)], results: @["A", "B"]), TestSpecs( id: 11, info: "Authorizing multiple accounts concurrently is permitted", signers: @["A", "B"], votes: @[TesterVote(signer: "A", voted: "C", auth: true), TesterVote(signer: "B"), TesterVote(signer: "A", voted: "D", auth: true), TesterVote(signer: "B"), TesterVote(signer: "A"), TesterVote(signer: "B", voted: "D", auth: true), TesterVote(signer: "A", noTurn: true), TesterVote(signer: "B", voted: "C", auth: true, noTurn: true)], results: @["A", "B", "C", "D"]), TestSpecs( id: 12, info: "Deauthorizations are counted once per signer per target", signers: @["A", "B"], votes: @[TesterVote(signer: "A", voted: "B"), TesterVote(signer: "B"), TesterVote(signer: "A", voted: "B"), TesterVote(signer: "B"), TesterVote(signer: "A", voted: "B")], results: @["A", "B"]), TestSpecs( id: 13, info: "Deauthorizing multiple accounts concurrently is permitted", signers: @["A", "B", "C", "D"], votes: @[TesterVote(signer: "A", voted: "C", noTurn: true), TesterVote(signer: "B", noTurn: true), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A", voted: "D", noTurn: true), TesterVote(signer: "B"), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A"), TesterVote(signer: "B", voted: "D", noTurn: true), TesterVote(signer: "C", voted: "D", noTurn: true), TesterVote(signer: "A", noTurn: true), TesterVote(signer: "B", voted: "C", noTurn: true)], results: @["A", "B"]), TestSpecs( id: 14, info: "Votes from deauthorized signers are discarded immediately " & "(deauth votes)", signers: @["A", "B", "C"], votes: @[TesterVote(signer: "C", voted: "B", noTurn: true), TesterVote(signer: "A", voted: "C"), TesterVote(signer: "B", voted: "C", noTurn: true), TesterVote(signer: "A", voted: "B", noTurn: true)], results: @["A", "B"]), TestSpecs( id: 15, info: "Votes from deauthorized signers are discarded immediately " & "(auth votes)", signers: @["A", "B", "C"], votes: @[TesterVote(signer: "C", voted: "D", auth: true, noTurn: true), TesterVote(signer: "A", voted: "C"), TesterVote(signer: "B", voted: "C", noTurn: true), TesterVote(signer: "A", voted: "D", auth: true, noTurn: true)], results: @["A", "B"]), TestSpecs( id: 16, info: "Cascading changes are not allowed, only the account being " & "voted on may change", signers: @["A", "B", "C", "D"], votes: @[TesterVote(signer: "A", voted: "C", noTurn: true), TesterVote(signer: "B", noTurn: true), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A", voted: "D", noTurn: true), TesterVote(signer: "B", voted: "C"), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A"), TesterVote(signer: "B", voted: "D", noTurn: true), TesterVote(signer: "C", voted: "D", noTurn: true)], results: @["A", "B", "C"]), TestSpecs( id: 17, info: "Changes reaching consensus out of bounds (via a deauth) " & "execute on touch", signers: @["A", "B", "C", "D"], votes: @[TesterVote(signer: "A", voted: "C", noTurn: true), TesterVote(signer: "B", noTurn: true), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A", voted: "D", noTurn: true), TesterVote(signer: "B", voted: "C"), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A"), TesterVote(signer: "B", voted: "D", noTurn: true), TesterVote(signer: "C", voted: "D", noTurn: true), TesterVote(signer: "A", noTurn: true), TesterVote(signer: "C", voted: "C", auth: true, noTurn: true)], results: @["A", "B"]), TestSpecs( id: 18, info: "Changes reaching consensus out of bounds (via a deauth) " & "may go out of consensus on first touch", signers: @["A", "B", "C", "D"], votes: @[TesterVote(signer: "A", voted: "C", noTurn: true), TesterVote(signer: "B", noTurn: true), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A", voted: "D", noTurn: true), TesterVote(signer: "B", voted: "C"), TesterVote(signer: "C", noTurn: true), TesterVote(signer: "A"), TesterVote(signer: "B", voted: "D", noTurn: true), TesterVote(signer: "C", voted: "D", noTurn: true), TesterVote(signer: "A", noTurn: true), TesterVote(signer: "B", voted: "C", auth: true, noTurn: true)], results: @["A", "B", "C"]), TestSpecs( id: 19, info: "Ensure that pending votes don't survive authorization status " & "changes. This corner case can only appear if a signer is " & "quickly added, removed and then readded (or the inverse), " & "while one of the original voters dropped. If a past vote is " & "left cached in the system somewhere, this will interfere " & "with the final signer outcome.", signers: @["A", "B", "C", "D", "E"], votes: @[ # Authorize F, 3 votes needed TesterVote(signer: "A", voted: "F", auth: true, noTurn: true), TesterVote(signer: "B", voted: "F", auth: true), TesterVote(signer: "C", voted: "F", auth: true, noTurn: true), # Deauthorize F, 4 votes needed (leave A's previous vote "unchanged") TesterVote(signer: "D", voted: "F", noTurn: true), TesterVote(signer: "E", voted: "F", noTurn: true), TesterVote(signer: "B", voted: "F", noTurn: true), TesterVote(signer: "C", voted: "F"), # Almost authorize F, 2/3 votes needed TesterVote(signer: "D", voted: "F", auth: true), TesterVote(signer: "E", voted: "F", auth: true, noTurn: true), # Deauthorize A, 3 votes needed TesterVote(signer: "B", voted: "A", noTurn: true), TesterVote(signer: "C", voted: "A"), TesterVote(signer: "D", voted: "A", noTurn: true), # Finish authorizing F, 3/3 votes needed TesterVote(signer: "B", voted: "F", auth: true, noTurn: true)], results: @["B", "C", "D", "E", "F"]), TestSpecs( id: 20, info: "Epoch transitions reset all votes to allow chain checkpointing", epoch: 3, signers: @["A", "B"], votes: @[TesterVote(signer: "A", voted: "C", auth: true), TesterVote(signer: "B"), TesterVote(signer: "A", checkpoint: @["A", "B"]), TesterVote(signer: "B", voted: "C", auth: true)], results: @["A", "B"]), TestSpecs( id: 21, info: "An unauthorized signer should not be able to sign blocks", signers: @["A"], votes: @[TesterVote(signer: "B", noTurn: true)], failure: errUnauthorizedSigner), TestSpecs( id: 22, info: "An authorized signer that signed recenty should not be able " & "to sign again", signers: @["A", "B"], votes: @[TesterVote(signer: "A"), TesterVote(signer: "A")], failure: errRecentlySigned), TestSpecs( id: 23, info: "Recent signatures should not reset on checkpoint blocks " & "imported in a batch ", epoch: 3, signers: @["A", "B", "C"], votes: @[TesterVote(signer: "A", noTurn: true), TesterVote(signer: "B", noTurn: true), TesterVote(signer: "A", checkpoint: @["A", "B", "C"], noTurn: true), TesterVote(signer: "A", noTurn: true)], # Setting the `runBack` flag forces the shapshot handler searching for # a checkpoint before entry 3. So the checkpont will be ignored for # re-setting the system so that address `A` of block #3 is found in the # list of recent signers (see documentation of the flag # `applySnapsMinBacklog` for the `Clique` descriptor.) # # As far as I understand, there was no awareness of the tranaction batch # in the Go implementation -- jordan. runBack: true, failure: errRecentlySigned), # The last test does not differ from the previous one with the current # test environment. TestSpecs( id: 24, info: "Recent signatures (revisted) should not reset on checkpoint " & "blocks imported in a batch " & "(https://github.com/ethereum/go-ethereum/issues/17593). "& "Whilst this seems overly specific and weird, it was a "& "Rinkeby consensus split.", epoch: 3, signers: @["A", "B", "C"], votes: @[TesterVote(signer: "A", noTurn: true), TesterVote(signer: "B", noTurn: true), TesterVote(signer: "A", checkpoint: @["A", "B", "C"], noTurn: true), TesterVote(signer: "A", newbatch: true, noTurn: true)], # Setting the `runBack` flag forces the shapshot handler searching for # a checkpoint before entry 3. So the checkpont will be ignored for # re-setting the system so that address `A` of block #3 is found in the # list of recent signers (see documentation of the flag # `applySnapsMinBacklog` for the `Clique` descriptor.) # # As far as I understand, there was no awareness of the tranaction batch # in the Go implementation -- jordan. runBack: true, failure: errRecentlySigned), # Not found in Go reference implementation TestSpecs( id: 25, info: "Test 23/24 with using the most recent checkpoint", epoch: 3, signers: @["A", "B", "C"], votes: @[TesterVote(signer: "A", noTurn: true), TesterVote(signer: "B", noTurn: true), TesterVote(signer: "A", checkpoint: @["A", "B", "C"], noTurn: true), TesterVote(signer: "A", noTurn: true)], results: @["A", "B", "C"])] static: # For convenience, make sure that IDs are increasing for n in 1 ..< voterSamples.len: if voterSamples[n-1].id < voterSamples[n].id: continue echo "voterSamples[", n, "] == ", voterSamples[n].id, " expected ", voterSamples[n-1].id + 1, " or greater" doAssert voterSamples[n-1].id < voterSamples[n].id # End