storj/satellite/audit/pathcollector_test.go

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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package audit_test
import (
"math/rand"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"storj.io/storj/internal/memory"
"storj.io/storj/internal/testcontext"
"storj.io/storj/internal/testplanet"
"storj.io/storj/internal/testrand"
"storj.io/storj/pkg/storj"
"storj.io/storj/satellite/audit"
"storj.io/storj/uplink"
)
// TestAuditPathCollector does the following:
// - start testplanet with 5 nodes and a reservoir size of 3
// - upload 5 files
// - iterate over all the segments in satellite.Metainfo and store them in allPieces map
// - create a audit observer and call metaloop.Join(auditObs)
//
// Then for every node in testplanet:
// - expect that there is a reservoir for that node on the audit observer
// - that the reservoir size is <= 2 (the maxReservoirSize)
// - that every item in the reservoir is unique
func TestAuditPathCollector(t *testing.T) {
testplanet.Run(t, testplanet.Config{
SatelliteCount: 1, StorageNodeCount: 5, UplinkCount: 1,
}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
audits := planet.Satellites[0].Audit
satellite := planet.Satellites[0]
err := audits.Service.Close()
require.NoError(t, err)
ul := planet.Uplinks[0]
// upload 5 remote files with 1 segment
for i := 0; i < 5; i++ {
testData := testrand.Bytes(8 * memory.KiB)
path := "/some/remote/path/" + string(i)
err := ul.UploadWithConfig(ctx, satellite, &uplink.RSConfig{
MinThreshold: 3,
RepairThreshold: 4,
SuccessThreshold: 5,
MaxThreshold: 5,
}, "testbucket", path, testData)
require.NoError(t, err)
}
r := rand.New(rand.NewSource(time.Now().Unix()))
observer := audit.NewPathCollector(3, r)
err = audits.ReservoirService.MetainfoLoop.Join(ctx, observer)
require.NoError(t, err)
for _, node := range planet.StorageNodes {
// expect a reservoir for every node
require.NotNil(t, observer.Reservoirs[node.ID()])
require.True(t, len(observer.Reservoirs[node.ID()].Paths) > 1)
// Require that len paths are <= 2 even though the PathCollector was instantiated with 3
// because the maxReservoirSize is currently 2.
require.True(t, len(observer.Reservoirs[node.ID()].Paths) <= 2)
repeats := make(map[storj.Path]bool)
for _, path := range observer.Reservoirs[node.ID()].Paths {
assert.False(t, repeats[path], "expected every item in reservoir to be unique")
repeats[path] = true
}
}
})
}