forked from TrueCloudLab/restic
289 lines
6.8 KiB
Go
289 lines
6.8 KiB
Go
package repository_test
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import (
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"fmt"
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"math/rand"
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"testing"
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"github.com/restic/restic/internal/repository"
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"github.com/restic/restic/internal/restic"
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rtest "github.com/restic/restic/internal/test"
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)
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func TestMasterIndex(t *testing.T) {
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idInIdx1 := restic.NewRandomID()
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idInIdx2 := restic.NewRandomID()
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idInIdx12 := restic.NewRandomID()
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blob1 := restic.PackedBlob{
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PackID: restic.NewRandomID(),
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Blob: restic.Blob{
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Type: restic.DataBlob,
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ID: idInIdx1,
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Length: uint(restic.CiphertextLength(10)),
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Offset: 0,
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},
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}
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blob2 := restic.PackedBlob{
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PackID: restic.NewRandomID(),
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Blob: restic.Blob{
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Type: restic.DataBlob,
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ID: idInIdx2,
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Length: uint(restic.CiphertextLength(100)),
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Offset: 10,
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},
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}
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blob12a := restic.PackedBlob{
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PackID: restic.NewRandomID(),
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Blob: restic.Blob{
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Type: restic.TreeBlob,
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ID: idInIdx12,
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Length: uint(restic.CiphertextLength(123)),
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Offset: 110,
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},
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}
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blob12b := restic.PackedBlob{
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PackID: restic.NewRandomID(),
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Blob: restic.Blob{
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Type: restic.TreeBlob,
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ID: idInIdx12,
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Length: uint(restic.CiphertextLength(123)),
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Offset: 50,
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},
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}
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idx1 := repository.NewIndex()
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idx1.Store(blob1)
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idx1.Store(blob12a)
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idx2 := repository.NewIndex()
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idx2.Store(blob2)
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idx2.Store(blob12b)
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mIdx := repository.NewMasterIndex()
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mIdx.Insert(idx1)
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mIdx.Insert(idx2)
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// test idInIdx1
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found := mIdx.Has(idInIdx1, restic.DataBlob)
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rtest.Equals(t, true, found)
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blobs := mIdx.Lookup(idInIdx1, restic.DataBlob)
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rtest.Equals(t, []restic.PackedBlob{blob1}, blobs)
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size, found := mIdx.LookupSize(idInIdx1, restic.DataBlob)
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rtest.Equals(t, true, found)
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rtest.Equals(t, uint(10), size)
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// test idInIdx2
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found = mIdx.Has(idInIdx2, restic.DataBlob)
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rtest.Equals(t, true, found)
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blobs = mIdx.Lookup(idInIdx2, restic.DataBlob)
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rtest.Equals(t, []restic.PackedBlob{blob2}, blobs)
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size, found = mIdx.LookupSize(idInIdx2, restic.DataBlob)
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rtest.Equals(t, true, found)
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rtest.Equals(t, uint(100), size)
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// test idInIdx12
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found = mIdx.Has(idInIdx12, restic.TreeBlob)
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rtest.Equals(t, true, found)
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blobs = mIdx.Lookup(idInIdx12, restic.TreeBlob)
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rtest.Equals(t, 2, len(blobs))
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// test Lookup result for blob12a
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found = false
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if blobs[0] == blob12a || blobs[1] == blob12a {
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found = true
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}
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rtest.Assert(t, found, "blob12a not found in result")
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// test Lookup result for blob12b
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found = false
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if blobs[0] == blob12b || blobs[1] == blob12b {
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found = true
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}
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rtest.Assert(t, found, "blob12a not found in result")
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size, found = mIdx.LookupSize(idInIdx12, restic.TreeBlob)
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rtest.Equals(t, true, found)
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rtest.Equals(t, uint(123), size)
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// test not in index
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found = mIdx.Has(restic.NewRandomID(), restic.TreeBlob)
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rtest.Assert(t, !found, "Expected no blobs when fetching with a random id")
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blobs = mIdx.Lookup(restic.NewRandomID(), restic.DataBlob)
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rtest.Assert(t, blobs == nil, "Expected no blobs when fetching with a random id")
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size, found = mIdx.LookupSize(restic.NewRandomID(), restic.DataBlob)
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rtest.Assert(t, !found, "Expected no blobs when fetching with a random id")
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// Test Count
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num := mIdx.Count(restic.DataBlob)
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rtest.Equals(t, uint(2), num)
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num = mIdx.Count(restic.TreeBlob)
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rtest.Equals(t, uint(2), num)
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}
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func TestMasterMergeFinalIndexes(t *testing.T) {
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idInIdx1 := restic.NewRandomID()
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idInIdx2 := restic.NewRandomID()
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blob1 := restic.PackedBlob{
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PackID: restic.NewRandomID(),
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Blob: restic.Blob{
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Type: restic.DataBlob,
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ID: idInIdx1,
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Length: 10,
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Offset: 0,
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},
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}
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blob2 := restic.PackedBlob{
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PackID: restic.NewRandomID(),
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Blob: restic.Blob{
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Type: restic.DataBlob,
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ID: idInIdx2,
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Length: 100,
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Offset: 10,
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},
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}
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idx1 := repository.NewIndex()
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idx1.Store(blob1)
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idx2 := repository.NewIndex()
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idx2.Store(blob2)
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mIdx := repository.NewMasterIndex()
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mIdx.Insert(idx1)
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mIdx.Insert(idx2)
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finalIndexes := mIdx.FinalizeNotFinalIndexes()
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rtest.Equals(t, []*repository.Index{idx1, idx2}, finalIndexes)
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mIdx.MergeFinalIndexes()
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blobs := mIdx.Lookup(idInIdx1, restic.DataBlob)
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rtest.Equals(t, []restic.PackedBlob{blob1}, blobs)
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blobs = mIdx.Lookup(idInIdx2, restic.DataBlob)
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rtest.Equals(t, []restic.PackedBlob{blob2}, blobs)
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blobs = mIdx.Lookup(restic.NewRandomID(), restic.DataBlob)
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rtest.Assert(t, blobs == nil, "Expected no blobs when fetching with a random id")
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}
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func createRandomMasterIndex(rng *rand.Rand, num, size int) (*repository.MasterIndex, restic.ID) {
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mIdx := repository.NewMasterIndex()
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for i := 0; i < num-1; i++ {
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idx, _ := createRandomIndex(rng, size)
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mIdx.Insert(idx)
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}
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idx1, lookupID := createRandomIndex(rng, size)
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mIdx.Insert(idx1)
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mIdx.FinalizeNotFinalIndexes()
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mIdx.MergeFinalIndexes()
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return mIdx, lookupID
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}
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func BenchmarkMasterIndexAlloc(b *testing.B) {
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rng := rand.New(rand.NewSource(0))
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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createRandomMasterIndex(rng, 10000, 5)
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}
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}
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func BenchmarkMasterIndexLookupSingleIndex(b *testing.B) {
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mIdx, lookupID := createRandomMasterIndex(rand.New(rand.NewSource(0)), 1, 200000)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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mIdx.Lookup(lookupID, restic.DataBlob)
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}
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}
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func BenchmarkMasterIndexLookupMultipleIndex(b *testing.B) {
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mIdx, lookupID := createRandomMasterIndex(rand.New(rand.NewSource(0)), 100, 10000)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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mIdx.Lookup(lookupID, restic.DataBlob)
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}
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}
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func BenchmarkMasterIndexLookupSingleIndexUnknown(b *testing.B) {
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lookupID := restic.NewRandomID()
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mIdx, _ := createRandomMasterIndex(rand.New(rand.NewSource(0)), 1, 200000)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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mIdx.Lookup(lookupID, restic.DataBlob)
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}
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}
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func BenchmarkMasterIndexLookupMultipleIndexUnknown(b *testing.B) {
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lookupID := restic.NewRandomID()
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mIdx, _ := createRandomMasterIndex(rand.New(rand.NewSource(0)), 100, 10000)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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mIdx.Lookup(lookupID, restic.DataBlob)
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}
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}
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func BenchmarkMasterIndexLookupParallel(b *testing.B) {
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mIdx := repository.NewMasterIndex()
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for _, numindices := range []int{25, 50, 100} {
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var lookupID restic.ID
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b.StopTimer()
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rng := rand.New(rand.NewSource(0))
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mIdx, lookupID = createRandomMasterIndex(rng, numindices, 10000)
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b.StartTimer()
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name := fmt.Sprintf("known,indices=%d", numindices)
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b.Run(name, func(b *testing.B) {
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b.RunParallel(func(pb *testing.PB) {
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for pb.Next() {
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mIdx.Lookup(lookupID, restic.DataBlob)
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}
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})
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})
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lookupID = restic.NewRandomID()
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name = fmt.Sprintf("unknown,indices=%d", numindices)
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b.Run(name, func(b *testing.B) {
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b.RunParallel(func(pb *testing.PB) {
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for pb.Next() {
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mIdx.Lookup(lookupID, restic.DataBlob)
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}
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})
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})
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}
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}
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func BenchmarkMasterIndexLookupBlobSize(b *testing.B) {
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rng := rand.New(rand.NewSource(0))
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mIdx, lookupID := createRandomMasterIndex(rand.New(rng), 5, 200000)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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mIdx.LookupSize(lookupID, restic.DataBlob)
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}
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}
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