mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
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111 lines
2.8 KiB
Go
111 lines
2.8 KiB
Go
// Copyright 2020 The LevelDB-Go and Pebble Authors. All rights reserved. Use
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// of this source code is governed by a BSD-style license that can be found in
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// the LICENSE file.
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package pebble
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import (
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"testing"
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"github.com/cockroachdb/errors"
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"github.com/cockroachdb/pebble/internal/base"
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"github.com/cockroachdb/pebble/vfs"
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"github.com/stretchr/testify/require"
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)
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// TestSetCurrentFileCrash tests a crash that occurs during
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// a MANIFEST roll, leaving the temporary CURRENT file on
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// the filesystem. These temporary files should be cleaned
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// up on Open.
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func TestSetCurrentFileCrash(t *testing.T) {
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mem := vfs.NewMem()
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// Initialize a fresh database to write the initial MANIFEST.
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{
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d, err := Open("", &Options{FS: mem})
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require.NoError(t, err)
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require.NoError(t, d.Close())
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}
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// Open the database again, this time with a FS that
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// errors on Rename and a tiny max manifest file size
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// to force manifest rolls.
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{
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wantErr := errors.New("rename error")
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_, err := Open("", &Options{
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FS: renameErrorFS{FS: mem, err: wantErr},
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Logger: noFatalLogger{t: t},
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MaxManifestFileSize: 1,
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L0CompactionThreshold: 10,
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})
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// Open should fail during a manifest roll,
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// leaving a temp dir on the filesystem.
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if !errors.Is(err, wantErr) {
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t.Fatal(err)
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}
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}
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// A temp file should be left on the filesystem
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// from the failed Rename of the CURRENT file.
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if temps := allTempFiles(t, mem); len(temps) == 0 {
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t.Fatal("no temp files on the filesystem")
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}
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// Open the database a third time with a normal
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// filesystem again. It should clean up any temp
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// files on Open.
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{
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d, err := Open("", &Options{
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FS: mem,
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MaxManifestFileSize: 1,
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L0CompactionThreshold: 10,
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})
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require.NoError(t, err)
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require.NoError(t, d.Close())
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if temps := allTempFiles(t, mem); len(temps) > 0 {
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t.Fatalf("temporary files still on disk: %#v\n", temps)
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}
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}
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}
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func allTempFiles(t *testing.T, fs vfs.FS) []string {
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var files []string
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ls, err := fs.List("")
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require.NoError(t, err)
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for _, f := range ls {
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ft, _, ok := base.ParseFilename(fs, f)
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if ok && ft == fileTypeTemp {
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files = append(files, f)
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}
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}
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return files
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}
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type renameErrorFS struct {
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vfs.FS
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err error
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}
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func (fs renameErrorFS) Rename(oldname string, newname string) error {
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return fs.err
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}
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// noFatalLogger implements Logger, logging to the contained
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// *testing.T. Notably it does not panic on calls to Fatalf
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// to enable unit tests of fatal logic.
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type noFatalLogger struct {
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t *testing.T
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}
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func (l noFatalLogger) Infof(format string, args ...interface{}) {
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l.t.Logf(format, args...)
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}
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func (l noFatalLogger) Errorf(format string, args ...interface{}) {
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l.t.Logf(format, args...)
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}
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func (l noFatalLogger) Fatalf(format string, args ...interface{}) {
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l.t.Logf(format, args...)
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}
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