Merge pull request #39 from getamis/feature/TFS-02-04-Reduce-validator-network-size-below-3f-1
Implement TFU-02-04 Reduce validator network size but keep it more than 2F+1
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commit
2a39a56650
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@ -18,8 +18,9 @@ package tests
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import (
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"context"
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"time"
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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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@ -114,4 +115,38 @@ var _ = Describe("Dynamic validators addition/removal testing", 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("TFS-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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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.NewIstanbulClient()
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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.NewIstanbulClient()
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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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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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})
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