mirror of
https://github.com/octoleo/restic.git
synced 2024-06-07 03:20:49 +00:00
111 lines
2.4 KiB
Go
111 lines
2.4 KiB
Go
package archiver
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import (
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"bytes"
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"io"
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"math/rand"
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"restic"
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"restic/repository"
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"testing"
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"github.com/restic/chunker"
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)
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func loadBlob(t *testing.T, repo *repository.Repository, id restic.ID, buf []byte) []byte {
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buf, err := repo.LoadBlob(id, restic.DataBlob, buf)
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if err != nil {
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t.Fatalf("LoadBlob(%v) returned error %v", id, err)
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}
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return buf
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}
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func checkSavedFile(t *testing.T, repo *repository.Repository, treeID restic.ID, name string, rd io.Reader) {
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tree, err := repo.LoadTree(treeID)
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if err != nil {
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t.Fatalf("LoadTree() returned error %v", err)
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}
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if len(tree.Nodes) != 1 {
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t.Fatalf("wrong number of nodes for tree, want %v, got %v", 1, len(tree.Nodes))
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}
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node := tree.Nodes[0]
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if node.Name != "fakefile" {
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t.Fatalf("wrong filename, want %v, got %v", "fakefile", node.Name)
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}
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if len(node.Content) == 0 {
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t.Fatalf("node.Content has length 0")
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}
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// check blobs
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buf := make([]byte, chunker.MaxSize)
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buf2 := make([]byte, chunker.MaxSize)
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for i, id := range node.Content {
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buf = loadBlob(t, repo, id, buf)
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buf2 = buf2[:len(buf)]
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_, err = io.ReadFull(rd, buf2)
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(buf, buf2) {
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t.Fatalf("blob %d (%v) is wrong", i, id.Str())
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}
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}
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}
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// fakeFile returns a reader which yields deterministic pseudo-random data.
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func fakeFile(t testing.TB, seed, size int64) io.Reader {
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return io.LimitReader(restic.NewRandReader(rand.New(rand.NewSource(seed))), size)
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}
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func TestArchiveReader(t *testing.T) {
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repo, cleanup := repository.TestRepository(t)
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defer cleanup()
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seed := rand.Int63()
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size := int64(rand.Intn(50*1024*1024) + 50*1024*1024)
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t.Logf("seed is 0x%016x, size is %v", seed, size)
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f := fakeFile(t, seed, size)
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sn, id, err := ArchiveReader(repo, nil, f, "fakefile")
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if err != nil {
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t.Fatalf("ArchiveReader() returned error %v", err)
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}
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if id.IsNull() {
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t.Fatalf("ArchiveReader() returned null ID")
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}
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t.Logf("snapshot saved as %v, tree is %v", id.Str(), sn.Tree.Str())
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checkSavedFile(t, repo, *sn.Tree, "fakefile", fakeFile(t, seed, size))
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}
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func BenchmarkArchiveReader(t *testing.B) {
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repo, cleanup := repository.TestRepository(t)
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defer cleanup()
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const size = 50 * 1024 * 1024
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buf := make([]byte, size)
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_, err := io.ReadFull(fakeFile(t, 23, size), buf)
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if err != nil {
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t.Fatal(err)
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}
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t.SetBytes(size)
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t.ResetTimer()
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for i := 0; i < t.N; i++ {
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_, _, err := ArchiveReader(repo, nil, bytes.NewReader(buf), "fakefile")
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if err != nil {
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t.Fatal(err)
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}
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}
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}
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