mirror of
https://github.com/octoleo/restic.git
synced 2024-11-15 01:34:06 +00:00
409 lines
9.8 KiB
Go
409 lines
9.8 KiB
Go
package index_test
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import (
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"context"
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"fmt"
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"math/rand"
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"runtime"
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"testing"
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"time"
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"github.com/restic/restic/internal/checker"
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"github.com/restic/restic/internal/crypto"
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"github.com/restic/restic/internal/index"
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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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bhInIdx1 := restic.NewRandomBlobHandle()
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bhInIdx2 := restic.NewRandomBlobHandle()
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bhInIdx12 := restic.BlobHandle{ID: restic.NewRandomID(), Type: restic.TreeBlob}
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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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BlobHandle: bhInIdx1,
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Length: uint(crypto.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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BlobHandle: bhInIdx2,
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Length: uint(crypto.CiphertextLength(100)),
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Offset: 10,
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UncompressedLength: 200,
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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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BlobHandle: bhInIdx12,
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Length: uint(crypto.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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BlobHandle: bhInIdx12,
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Length: uint(crypto.CiphertextLength(123)),
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Offset: 50,
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UncompressedLength: 80,
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},
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}
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idx1 := index.NewIndex()
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idx1.StorePack(blob1.PackID, []restic.Blob{blob1.Blob})
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idx1.StorePack(blob12a.PackID, []restic.Blob{blob12a.Blob})
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idx2 := index.NewIndex()
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idx2.StorePack(blob2.PackID, []restic.Blob{blob2.Blob})
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idx2.StorePack(blob12b.PackID, []restic.Blob{blob12b.Blob})
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mIdx := index.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(bhInIdx1)
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rtest.Equals(t, true, found)
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blobs := mIdx.Lookup(bhInIdx1)
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rtest.Equals(t, []restic.PackedBlob{blob1}, blobs)
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size, found := mIdx.LookupSize(bhInIdx1)
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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(bhInIdx2)
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rtest.Equals(t, true, found)
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blobs = mIdx.Lookup(bhInIdx2)
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rtest.Equals(t, []restic.PackedBlob{blob2}, blobs)
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size, found = mIdx.LookupSize(bhInIdx2)
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rtest.Equals(t, true, found)
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rtest.Equals(t, uint(200), size)
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// test idInIdx12
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found = mIdx.Has(bhInIdx12)
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rtest.Equals(t, true, found)
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blobs = mIdx.Lookup(bhInIdx12)
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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(bhInIdx12)
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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.BlobHandle{ID: restic.NewRandomID(), Type: 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.NewRandomBlobHandle())
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rtest.Assert(t, blobs == nil, "Expected no blobs when fetching with a random id")
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_, found = mIdx.LookupSize(restic.NewRandomBlobHandle())
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rtest.Assert(t, !found, "Expected no blobs when fetching with a random id")
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}
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func TestMasterMergeFinalIndexes(t *testing.T) {
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bhInIdx1 := restic.NewRandomBlobHandle()
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bhInIdx2 := restic.NewRandomBlobHandle()
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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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BlobHandle: bhInIdx1,
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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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BlobHandle: bhInIdx2,
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Length: 100,
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Offset: 10,
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UncompressedLength: 200,
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},
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}
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idx1 := index.NewIndex()
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idx1.StorePack(blob1.PackID, []restic.Blob{blob1.Blob})
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idx2 := index.NewIndex()
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idx2.StorePack(blob2.PackID, []restic.Blob{blob2.Blob})
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mIdx := index.NewMasterIndex()
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mIdx.Insert(idx1)
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mIdx.Insert(idx2)
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finalIndexes, idxCount := index.TestMergeIndex(t, mIdx)
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rtest.Equals(t, []*index.Index{idx1, idx2}, finalIndexes)
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rtest.Equals(t, 1, idxCount)
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blobCount := 0
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mIdx.Each(context.TODO(), func(pb restic.PackedBlob) {
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blobCount++
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})
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rtest.Equals(t, 2, blobCount)
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blobs := mIdx.Lookup(bhInIdx1)
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rtest.Equals(t, []restic.PackedBlob{blob1}, blobs)
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blobs = mIdx.Lookup(bhInIdx2)
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rtest.Equals(t, []restic.PackedBlob{blob2}, blobs)
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blobs = mIdx.Lookup(restic.NewRandomBlobHandle())
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rtest.Assert(t, blobs == nil, "Expected no blobs when fetching with a random id")
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// merge another index containing identical blobs
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idx3 := index.NewIndex()
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idx3.StorePack(blob1.PackID, []restic.Blob{blob1.Blob})
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idx3.StorePack(blob2.PackID, []restic.Blob{blob2.Blob})
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mIdx.Insert(idx3)
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finalIndexes, idxCount = index.TestMergeIndex(t, mIdx)
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rtest.Equals(t, []*index.Index{idx3}, finalIndexes)
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rtest.Equals(t, 1, idxCount)
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// Index should have same entries as before!
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blobs = mIdx.Lookup(bhInIdx1)
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rtest.Equals(t, []restic.PackedBlob{blob1}, blobs)
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blobs = mIdx.Lookup(bhInIdx2)
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rtest.Equals(t, []restic.PackedBlob{blob2}, blobs)
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blobCount = 0
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mIdx.Each(context.TODO(), func(pb restic.PackedBlob) {
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blobCount++
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})
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rtest.Equals(t, 2, blobCount)
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}
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func createRandomMasterIndex(t testing.TB, rng *rand.Rand, num, size int) (*index.MasterIndex, restic.BlobHandle) {
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mIdx := index.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, lookupBh := createRandomIndex(rng, size)
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mIdx.Insert(idx1)
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index.TestMergeIndex(t, mIdx)
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return mIdx, lookupBh
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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(b, 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, lookupBh := createRandomMasterIndex(b, 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(lookupBh)
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}
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}
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func BenchmarkMasterIndexLookupMultipleIndex(b *testing.B) {
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mIdx, lookupBh := createRandomMasterIndex(b, 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(lookupBh)
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}
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}
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func BenchmarkMasterIndexLookupSingleIndexUnknown(b *testing.B) {
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lookupBh := restic.NewRandomBlobHandle()
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mIdx, _ := createRandomMasterIndex(b, 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(lookupBh)
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}
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}
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func BenchmarkMasterIndexLookupMultipleIndexUnknown(b *testing.B) {
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lookupBh := restic.NewRandomBlobHandle()
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mIdx, _ := createRandomMasterIndex(b, 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(lookupBh)
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}
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}
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func BenchmarkMasterIndexLookupParallel(b *testing.B) {
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for _, numindices := range []int{25, 50, 100} {
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var lookupBh restic.BlobHandle
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b.StopTimer()
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rng := rand.New(rand.NewSource(0))
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mIdx, lookupBh := createRandomMasterIndex(b, 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(lookupBh)
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}
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})
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})
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lookupBh = restic.NewRandomBlobHandle()
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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(lookupBh)
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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, lookupBh := createRandomMasterIndex(b, 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(lookupBh)
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}
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}
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func BenchmarkMasterIndexEach(b *testing.B) {
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rng := rand.New(rand.NewSource(0))
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mIdx, _ := createRandomMasterIndex(b, 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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entries := 0
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mIdx.Each(context.TODO(), func(pb restic.PackedBlob) {
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entries++
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})
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}
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}
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func BenchmarkMasterIndexGC(b *testing.B) {
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mIdx, _ := createRandomMasterIndex(b, 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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runtime.GC()
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}
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runtime.KeepAlive(mIdx)
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}
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var (
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snapshotTime = time.Unix(1470492820, 207401672)
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depth = 3
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)
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func createFilledRepo(t testing.TB, snapshots int, dup float32, version uint) restic.Repository {
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repo := repository.TestRepositoryWithVersion(t, version)
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for i := 0; i < snapshots; i++ {
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restic.TestCreateSnapshot(t, repo, snapshotTime.Add(time.Duration(i)*time.Second), depth, dup)
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}
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return repo
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}
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func TestIndexSave(t *testing.T) {
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repository.TestAllVersions(t, testIndexSave)
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}
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func testIndexSave(t *testing.T, version uint) {
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repo := createFilledRepo(t, 3, 0, version)
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err := repo.LoadIndex(context.TODO())
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if err != nil {
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t.Fatal(err)
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}
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obsoletes, err := repo.Index().Save(context.TODO(), repo, nil, nil, nil)
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if err != nil {
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t.Fatalf("unable to save new index: %v", err)
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}
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for id := range obsoletes {
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t.Logf("remove index %v", id.Str())
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h := restic.Handle{Type: restic.IndexFile, Name: id.String()}
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err = repo.Backend().Remove(context.TODO(), h)
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if err != nil {
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t.Errorf("error removing index %v: %v", id, err)
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}
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}
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checker := checker.New(repo, false)
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err = checker.LoadSnapshots(context.TODO())
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if err != nil {
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t.Error(err)
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}
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hints, errs := checker.LoadIndex(context.TODO())
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for _, h := range hints {
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t.Logf("hint: %v\n", h)
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}
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for _, err := range errs {
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t.Errorf("checker found error: %v", err)
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}
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ctx, cancel := context.WithCancel(context.TODO())
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defer cancel()
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errCh := make(chan error)
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go checker.Structure(ctx, nil, errCh)
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i := 0
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for err := range errCh {
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t.Errorf("checker returned error: %v", err)
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i++
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if i == 10 {
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t.Errorf("more than 10 errors returned, skipping the rest")
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cancel()
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break
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}
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}
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}
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