222 lines
7.4 KiB
Go
222 lines
7.4 KiB
Go
// Copyright 2017 AMIS Technologies
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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 functional
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import (
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"context"
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"math"
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"sync"
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"time"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/jpmorganchase/istanbul-tools/container"
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"github.com/jpmorganchase/istanbul-tools/tests"
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)
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var _ = Describe("QFS-02: Dynamic validators addition/removal testing", func() {
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const (
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numberOfValidators = 4
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)
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var (
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constellationNetwork container.ConstellationNetwork
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blockchain container.Blockchain
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)
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BeforeEach(func() {
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constellationNetwork = container.NewDefaultConstellationNetwork(dockerNetwork, numberOfValidators)
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Expect(constellationNetwork.Start()).To(BeNil())
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blockchain = container.NewDefaultQuorumBlockchain(dockerNetwork, constellationNetwork)
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Expect(blockchain.Start(true)).To(BeNil())
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})
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AfterEach(func() {
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blockchain.Stop(true)
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blockchain.Finalize()
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constellationNetwork.Stop()
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constellationNetwork.Finalize()
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})
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It("QFS-02-01: Add validators", func() {
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testValidators := 1
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By("Ensure the number of validators is correct", func() {
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for _, v := range blockchain.Validators() {
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client := v.NewClient()
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validators, err := client.GetValidators(context.Background(), nil)
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Expect(err).Should(BeNil())
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Expect(len(validators)).Should(BeNumerically("==", numberOfValidators))
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}
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})
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By("Add validators", func() {
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_, err := blockchain.AddValidators(testValidators)
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Expect(err).Should(BeNil())
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})
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By("Wait for several blocks", func() {
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tests.WaitFor(blockchain.Validators(), func(geth container.Ethereum, wg *sync.WaitGroup) {
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Expect(geth.WaitForBlocks(5)).To(BeNil())
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wg.Done()
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})
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})
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By("Ensure the number of validators is correct", func() {
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for _, v := range blockchain.Validators() {
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client := v.NewClient()
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validators, err := client.GetValidators(context.Background(), nil)
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Expect(err).Should(BeNil())
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Expect(len(validators)).Should(BeNumerically("==", numberOfValidators+testValidators))
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}
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})
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})
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It("QFS-02-02: New validators consensus participation", func() {
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testValidator := 1
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newValidators, err := blockchain.AddValidators(testValidator)
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Expect(err).Should(BeNil())
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tests.WaitFor(blockchain.Validators()[numberOfValidators:], func(eth container.Ethereum, wg *sync.WaitGroup) {
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Expect(eth.WaitForProposed(newValidators[0].Address(), 100*time.Second)).Should(BeNil())
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wg.Done()
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})
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})
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It("QFS-02-03: Remove validators", func() {
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numOfCandidates := 3
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By("Ensure that numbers of validator is equal to $numberOfValidators", func() {
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for _, v := range blockchain.Validators() {
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client := v.NewClient()
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validators, err := client.GetValidators(context.Background(), nil)
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Expect(err).Should(BeNil())
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Expect(len(validators)).Should(BeNumerically("==", numberOfValidators))
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}
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})
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By("Add validators", func() {
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_, err := blockchain.AddValidators(numOfCandidates)
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Expect(err).Should(BeNil())
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})
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By("Ensure that consensus is working in 50 seconds", func() {
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Expect(blockchain.EnsureConsensusWorking(blockchain.Validators(), 50*time.Second)).Should(BeNil())
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})
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By("Check if the number of validators is correct", func() {
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for _, v := range blockchain.Validators() {
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client := v.NewClient()
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validators, err := client.GetValidators(context.Background(), nil)
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Expect(err).Should(BeNil())
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Expect(len(validators)).Should(BeNumerically("==", numberOfValidators+numOfCandidates))
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}
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})
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// remove validators [1,2,3]
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By("Remove validators", func() {
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removalCandidates := blockchain.Validators()[:numOfCandidates]
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processingTime := time.Duration(math.Pow(2, float64(len(removalCandidates)))*7) * time.Second
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Expect(blockchain.RemoveValidators(removalCandidates, processingTime)).Should(BeNil())
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})
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By("Ensure that consensus is working in 20 seconds", func() {
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Expect(blockchain.EnsureConsensusWorking(blockchain.Validators(), 20*time.Second)).Should(BeNil())
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})
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By("Check if the number of validators is correct", func() {
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for _, v := range blockchain.Validators() {
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client := v.NewClient()
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validators, err := client.GetValidators(context.Background(), nil)
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Expect(err).Should(BeNil())
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Expect(len(validators)).Should(BeNumerically("==", numberOfValidators))
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}
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})
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By("Ensure that consensus is working in 30 seconds", func() {
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Expect(blockchain.EnsureConsensusWorking(blockchain.Validators(), 30*time.Second)).Should(BeNil())
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})
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})
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It("QFS-02-04: Reduce validator network size below 2F+1", func() {
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By("Ensure that blocks are generated by validators", func() {
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tests.WaitFor(blockchain.Validators(), func(geth container.Ethereum, wg *sync.WaitGroup) {
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Expect(geth.WaitForBlocks(5)).To(BeNil())
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wg.Done()
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})
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})
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By("Reduce validator network size but keep it more than 2F+1", func() {
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// stop validators [3]
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stopCandidates := blockchain.Validators()[numberOfValidators-1:]
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for _, candidates := range stopCandidates {
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c := candidates.NewClient()
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Expect(c.StopMining(context.Background())).Should(BeNil())
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}
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})
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By("Verify number of validators", func() {
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for _, v := range blockchain.Validators() {
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client := v.NewClient()
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validators, err := client.GetValidators(context.Background(), nil)
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Expect(err).Should(BeNil())
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Expect(len(validators)).Should(BeNumerically("==", numberOfValidators))
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}
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})
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By("Ensure that blocks are generated by validators", func() {
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tests.WaitFor(blockchain.Validators()[:numberOfValidators-1], func(geth container.Ethereum, wg *sync.WaitGroup) {
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Expect(geth.WaitForBlocks(5)).To(BeNil())
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wg.Done()
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})
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})
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})
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It("QFS-02-05: Reduce validator network size below 2F+1", func() {
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By("Ensure that blocks are generated by validators", func() {
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tests.WaitFor(blockchain.Validators(), func(geth container.Ethereum, wg *sync.WaitGroup) {
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Expect(geth.WaitForBlocks(5)).To(BeNil())
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wg.Done()
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})
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})
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By("Reduce validator network size to less than 2F+1", func() {
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stopCandidates := blockchain.Validators()[numberOfValidators-2:]
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// stop validators [3,4]
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for _, candidates := range stopCandidates {
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c := candidates.NewClient()
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Expect(c.StopMining(context.Background())).Should(BeNil())
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}
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})
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By("Verify number of validators", func() {
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for _, v := range blockchain.Validators() {
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client := v.NewClient()
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validators, err := client.GetValidators(context.Background(), nil)
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Expect(err).Should(BeNil())
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Expect(len(validators)).Should(BeNumerically("==", numberOfValidators))
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}
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})
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By("No block generated", func() {
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// REMARK: ErrNoBlock will return if validators not generate block after 10 second.
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Expect(blockchain.EnsureConsensusWorking(blockchain.Validators(), 11*time.Second)).Should(Equal(container.ErrNoBlock))
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})
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})
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})
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