37dd9086ec
This commit solves several issues concerning the genesis block: * Genesis/ChainConfig loading was handled by cmd/geth code. This left library users in the cold. They could specify a JSON-encoded string and overwrite the config, but didn't get any of the additional checks performed by geth. * Decoding and writing of genesis JSON was conflated in WriteGenesisBlock. This made it a lot harder to embed the genesis block into the forthcoming config file loader. This commit changes things so there is a single Genesis type that represents genesis blocks. All uses of Write*Genesis* are changed to use the new type instead. * If the chain config supplied by the user was incompatible with the current chain (i.e. the chain had already advanced beyond a scheduled fork), it got overwritten. This is not an issue in practice because previous forks have always had the highest total difficulty. It might matter in the future though. The new code reverts the local chain to the point of the fork when upgrading configuration. The change to genesis block data removes compression library dependencies from package core.
375 lines
14 KiB
Go
375 lines
14 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package release
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import (
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"crypto/ecdsa"
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"math/big"
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"testing"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/crypto"
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)
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// setupReleaseTest creates a blockchain simulator and deploys a version oracle
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// contract for testing.
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func setupReleaseTest(t *testing.T, prefund ...*ecdsa.PrivateKey) (*ecdsa.PrivateKey, *ReleaseOracle, *backends.SimulatedBackend) {
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// Generate a new random account and a funded simulator
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key, _ := crypto.GenerateKey()
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auth := bind.NewKeyedTransactor(key)
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alloc := core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}
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for _, key := range prefund {
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alloc[crypto.PubkeyToAddress(key.PublicKey)] = core.GenesisAccount{Balance: big.NewInt(10000000000)}
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}
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sim := backends.NewSimulatedBackend(alloc)
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// Deploy a version oracle contract, commit and return
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_, _, oracle, err := DeployReleaseOracle(auth, sim, []common.Address{auth.From})
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if err != nil {
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t.Fatalf("Failed to deploy version contract: %v", err)
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}
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sim.Commit()
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return key, oracle, sim
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}
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// Tests that the version contract can be deployed and the creator is assigned
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// the sole authorized signer.
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func TestContractCreation(t *testing.T) {
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key, oracle, _ := setupReleaseTest(t)
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owner := crypto.PubkeyToAddress(key.PublicKey)
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signers, err := oracle.Signers(nil)
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if err != nil {
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t.Fatalf("Failed to retrieve list of signers: %v", err)
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}
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if len(signers) != 1 || signers[0] != owner {
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t.Fatalf("Initial signer mismatch: have %v, want %v", signers, owner)
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}
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}
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// Tests that subsequent signers can be promoted, each requiring half plus one
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// votes for it to pass through.
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func TestSignerPromotion(t *testing.T) {
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// Prefund a few accounts to authorize with and create the oracle
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keys := make([]*ecdsa.PrivateKey, 5)
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for i := 0; i < len(keys); i++ {
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keys[i], _ = crypto.GenerateKey()
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}
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key, oracle, sim := setupReleaseTest(t, keys...)
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// Gradually promote the keys, until all are authorized
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keys = append([]*ecdsa.PrivateKey{key}, keys...)
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for i := 1; i < len(keys); i++ {
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// Check that no votes are accepted from the not yet authed user
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if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[i]), common.Address{}); err != nil {
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t.Fatalf("Iter #%d: failed invalid promotion attempt: %v", i, err)
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}
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sim.Commit()
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pend, err := oracle.AuthProposals(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve active proposals: %v", i, err)
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}
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if len(pend) != 0 {
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t.Fatalf("Iter #%d: proposal count mismatch: have %d, want 0", i, len(pend))
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}
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// Promote with half - 1 voters and check that the user's not yet authorized
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for j := 0; j < i/2; j++ {
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if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
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}
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}
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sim.Commit()
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signers, err := oracle.Signers(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", i, err)
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}
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if len(signers) != i {
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t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", i, len(signers), i)
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}
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// Promote with the last one needed to pass the promotion
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if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[i/2]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid promotion completion attempt: %v", i, err)
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}
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sim.Commit()
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signers, err = oracle.Signers(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", i, err)
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}
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if len(signers) != i+1 {
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t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", i, len(signers), i+1)
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}
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}
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}
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// Tests that subsequent signers can be demoted, each requiring half plus one
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// votes for it to pass through.
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func TestSignerDemotion(t *testing.T) {
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// Prefund a few accounts to authorize with and create the oracle
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keys := make([]*ecdsa.PrivateKey, 5)
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for i := 0; i < len(keys); i++ {
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keys[i], _ = crypto.GenerateKey()
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}
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key, oracle, sim := setupReleaseTest(t, keys...)
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// Authorize all the keys as valid signers and verify cardinality
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keys = append([]*ecdsa.PrivateKey{key}, keys...)
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for i := 1; i < len(keys); i++ {
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for j := 0; j <= i/2; j++ {
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if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
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}
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}
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sim.Commit()
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}
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signers, err := oracle.Signers(nil)
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if err != nil {
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t.Fatalf("Failed to retrieve list of signers: %v", err)
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}
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if len(signers) != len(keys) {
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t.Fatalf("Signer count mismatch: have %v, want %v", len(signers), len(keys))
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}
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// Gradually demote users until we run out of signers
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for i := len(keys) - 1; i >= 0; i-- {
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// Demote with half - 1 voters and check that the user's not yet dropped
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for j := 0; j < (i+1)/2; j++ {
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if _, err = oracle.Demote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid demotion attempt: %v", len(keys)-i, err)
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}
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}
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sim.Commit()
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signers, err := oracle.Signers(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", len(keys)-i, err)
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}
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if len(signers) != i+1 {
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t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", len(keys)-i, len(signers), i+1)
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}
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// Demote with the last one needed to pass the demotion
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if _, err = oracle.Demote(bind.NewKeyedTransactor(keys[(i+1)/2]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid demotion completion attempt: %v", i, err)
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}
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sim.Commit()
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signers, err = oracle.Signers(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", len(keys)-i, err)
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}
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if len(signers) != i {
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t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", len(keys)-i, len(signers), i)
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}
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// Check that no votes are accepted from the already demoted users
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if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[i]), common.Address{}); err != nil {
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t.Fatalf("Iter #%d: failed invalid promotion attempt: %v", i, err)
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}
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sim.Commit()
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pend, err := oracle.AuthProposals(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve active proposals: %v", i, err)
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}
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if len(pend) != 0 {
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t.Fatalf("Iter #%d: proposal count mismatch: have %d, want 0", i, len(pend))
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}
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}
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}
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// Tests that new versions can be released, honouring both voting rights as well
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// as the minimum required vote count.
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func TestVersionRelease(t *testing.T) {
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// Prefund a few accounts to authorize with and create the oracle
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keys := make([]*ecdsa.PrivateKey, 5)
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for i := 0; i < len(keys); i++ {
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keys[i], _ = crypto.GenerateKey()
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}
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key, oracle, sim := setupReleaseTest(t, keys...)
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// Track the "current release"
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var (
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verMajor = uint32(0)
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verMinor = uint32(0)
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verPatch = uint32(0)
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verCommit = [20]byte{}
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)
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// Gradually push releases, always requiring more signers than previously
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keys = append([]*ecdsa.PrivateKey{key}, keys...)
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for i := 1; i < len(keys); i++ {
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// Check that no votes are accepted from the not yet authed user
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if _, err := oracle.Release(bind.NewKeyedTransactor(keys[i]), 0, 0, 0, [20]byte{0}); err != nil {
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t.Fatalf("Iter #%d: failed invalid release attempt: %v", i, err)
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}
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sim.Commit()
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prop, err := oracle.ProposedVersion(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve active proposal: %v", i, err)
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}
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if len(prop.Pass) != 0 {
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t.Fatalf("Iter #%d: proposal vote count mismatch: have %d, want 0", i, len(prop.Pass))
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}
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// Authorize the user to make releases
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for j := 0; j <= i/2; j++ {
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if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
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}
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}
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sim.Commit()
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// Propose release with half voters and check that the release does not yet go through
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for j := 0; j < (i+1)/2; j++ {
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if _, err = oracle.Release(bind.NewKeyedTransactor(keys[j]), uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}); err != nil {
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t.Fatalf("Iter #%d: failed valid release attempt: %v", i, err)
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}
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}
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sim.Commit()
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ver, err := oracle.CurrentVersion(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve current version: %v", i, err)
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}
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if ver.Major != verMajor || ver.Minor != verMinor || ver.Patch != verPatch || ver.Commit != verCommit {
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t.Fatalf("Iter #%d: version mismatch: have %d.%d.%d-%x, want %d.%d.%d-%x", i, ver.Major, ver.Minor, ver.Patch, ver.Commit, verMajor, verMinor, verPatch, verCommit)
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}
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// Pass the release and check that it became the next version
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verMajor, verMinor, verPatch, verCommit = uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}
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if _, err = oracle.Release(bind.NewKeyedTransactor(keys[(i+1)/2]), uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}); err != nil {
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t.Fatalf("Iter #%d: failed valid release completion attempt: %v", i, err)
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}
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sim.Commit()
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ver, err = oracle.CurrentVersion(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve current version: %v", i, err)
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}
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if ver.Major != verMajor || ver.Minor != verMinor || ver.Patch != verPatch || ver.Commit != verCommit {
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t.Fatalf("Iter #%d: version mismatch: have %d.%d.%d-%x, want %d.%d.%d-%x", i, ver.Major, ver.Minor, ver.Patch, ver.Commit, verMajor, verMinor, verPatch, verCommit)
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}
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}
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}
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// Tests that proposed versions can be nuked out of existence.
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func TestVersionNuking(t *testing.T) {
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// Prefund a few accounts to authorize with and create the oracle
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keys := make([]*ecdsa.PrivateKey, 9)
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for i := 0; i < len(keys); i++ {
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keys[i], _ = crypto.GenerateKey()
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}
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key, oracle, sim := setupReleaseTest(t, keys...)
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// Authorize all the keys as valid signers
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keys = append([]*ecdsa.PrivateKey{key}, keys...)
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for i := 1; i < len(keys); i++ {
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for j := 0; j <= i/2; j++ {
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if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
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}
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}
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sim.Commit()
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}
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// Propose releases with more and more keys, always retaining enough users to nuke the proposals
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for i := 1; i < (len(keys)+1)/2; i++ {
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// Propose release with an initial set of signers
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for j := 0; j < i; j++ {
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if _, err := oracle.Release(bind.NewKeyedTransactor(keys[j]), uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}); err != nil {
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t.Fatalf("Iter #%d: failed valid proposal attempt: %v", i, err)
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}
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}
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sim.Commit()
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prop, err := oracle.ProposedVersion(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve active proposal: %v", i, err)
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}
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if len(prop.Pass) != i {
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t.Fatalf("Iter #%d: proposal vote count mismatch: have %d, want %d", i, len(prop.Pass), i)
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}
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// Nuke the release with half+1 voters
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for j := i; j <= i+(len(keys)+1)/2; j++ {
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if _, err := oracle.Nuke(bind.NewKeyedTransactor(keys[j])); err != nil {
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t.Fatalf("Iter #%d: failed valid nuke attempt: %v", i, err)
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}
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}
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sim.Commit()
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prop, err = oracle.ProposedVersion(nil)
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if err != nil {
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t.Fatalf("Iter #%d: failed to retrieve active proposal: %v", i, err)
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}
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if len(prop.Pass) != 0 || len(prop.Fail) != 0 {
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t.Fatalf("Iter #%d: proposal vote count mismatch: have %d/%d pass/fail, want 0/0", i, len(prop.Pass), len(prop.Fail))
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}
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}
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}
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// Tests that demoting a signer will auto-nuke the currently pending release.
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func TestVersionAutoNuke(t *testing.T) {
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// Prefund a few accounts to authorize with and create the oracle
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keys := make([]*ecdsa.PrivateKey, 5)
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for i := 0; i < len(keys); i++ {
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keys[i], _ = crypto.GenerateKey()
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}
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key, oracle, sim := setupReleaseTest(t, keys...)
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// Authorize all the keys as valid signers
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keys = append([]*ecdsa.PrivateKey{key}, keys...)
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for i := 1; i < len(keys); i++ {
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for j := 0; j <= i/2; j++ {
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if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
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}
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}
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sim.Commit()
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}
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// Make a release proposal and check it's existence
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if _, err := oracle.Release(bind.NewKeyedTransactor(keys[0]), 1, 2, 3, [20]byte{4}); err != nil {
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t.Fatalf("Failed valid proposal attempt: %v", err)
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}
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sim.Commit()
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prop, err := oracle.ProposedVersion(nil)
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if err != nil {
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t.Fatalf("Failed to retrieve active proposal: %v", err)
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}
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if len(prop.Pass) != 1 {
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t.Fatalf("Proposal vote count mismatch: have %d, want 1", len(prop.Pass))
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}
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// Demote a signer and check release proposal deletion
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for i := 0; i <= len(keys)/2; i++ {
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if _, err := oracle.Demote(bind.NewKeyedTransactor(keys[i]), crypto.PubkeyToAddress(keys[len(keys)-1].PublicKey)); err != nil {
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t.Fatalf("Iter #%d: failed valid demotion attempt: %v", i, err)
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}
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}
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sim.Commit()
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prop, err = oracle.ProposedVersion(nil)
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if err != nil {
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t.Fatalf("Failed to retrieve active proposal: %v", err)
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}
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if len(prop.Pass) != 0 {
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t.Fatalf("Proposal vote count mismatch: have %d, want 0", len(prop.Pass))
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}
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}
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