106 lines
3.1 KiB
Go
106 lines
3.1 KiB
Go
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// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package audit_test
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap"
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"storj.io/storj/internal/testcontext"
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"storj.io/storj/internal/testplanet"
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"storj.io/storj/pkg/audit"
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"storj.io/storj/pkg/overlay"
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"storj.io/storj/pkg/storj"
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"storj.io/storj/satellite"
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)
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// TestDisqualificationTooManyFailedAudits does the following:
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// * Create a failed audit report for a storagenode
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// * Record the audit report several times and check that the node isn't
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// disqualified until the audit reputation reaches the cut-off value.
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func TestDisqualificationTooManyFailedAudits(t *testing.T) {
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var (
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auditDQCutOff = 0.4
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alpha0 float64 = 1
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beta0 float64
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)
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1, StorageNodeCount: 1, Reconfigure: testplanet.Reconfigure{
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Satellite: func(log *zap.Logger, index int, config *satellite.Config) {
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config.Overlay.Node.AuditReputationAlpha0 = alpha0
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config.Overlay.Node.AuditReputationBeta0 = beta0
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config.Overlay.Node.AuditReputationLambda = 1
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config.Overlay.Node.AuditReputationWeight = 1
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config.Overlay.Node.AuditReputationDQ = auditDQCutOff
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},
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},
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}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
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err := planet.Satellites[0].Audit.Service.Close()
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require.NoError(t, err)
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var (
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sat = planet.Satellites[0]
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nodeID = planet.StorageNodes[0].ID()
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report = &audit.Report{
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Fails: storj.NodeIDList{nodeID},
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}
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)
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dossier, err := sat.Overlay.Service.Get(ctx, nodeID)
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require.NoError(t, err)
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require.Equal(t, alpha0, dossier.Reputation.AuditReputationAlpha)
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require.Equal(t, beta0, dossier.Reputation.AuditReputationBeta)
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prevReputation := calcReputation(dossier)
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// Report the audit failure until the node gets disqualified due to many
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// failed audits
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iterations := 1
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for ; ; iterations++ {
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_, err := sat.Audit.Service.Reporter.RecordAudits(ctx, report)
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require.NoError(t, err)
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dossier, err := sat.Overlay.Service.Get(ctx, nodeID)
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require.NoError(t, err)
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reputation := calcReputation(dossier)
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require.Truef(t, prevReputation >= reputation,
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"(%d) expected reputation to remain or decrease (previous >= current): %f >= %f",
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iterations, prevReputation, reputation,
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)
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if reputation <= auditDQCutOff || reputation == prevReputation {
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require.NotNilf(t, dossier.Disqualified,
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"Disqualified (%d) - cut-off: %f, prev. reputation: %f, current reputation: %f",
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iterations, auditDQCutOff, prevReputation, reputation,
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)
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require.True(t, time.Now().Sub(*dossier.Disqualified) >= 0,
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"Disqualified should be in the past",
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)
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break
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}
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require.Nil(t, dossier.Disqualified, "Disqualified")
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prevReputation = reputation
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}
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require.True(t, iterations > 1, "the number of iterations must be at least 2")
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})
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}
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func calcReputation(dossier *overlay.NodeDossier) float64 {
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var (
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alpha = dossier.Reputation.AuditReputationAlpha
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beta = dossier.Reputation.AuditReputationBeta
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)
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return alpha / (alpha + beta)
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}
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