syncthing/lib/db/blockmap_test.go

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// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
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package db
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import (
"testing"
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"github.com/syncthing/syncthing/lib/protocol"
"github.com/syndtr/goleveldb/leveldb/util"
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)
func genBlocks(n int) []protocol.BlockInfo {
b := make([]protocol.BlockInfo, n)
for i := range b {
h := make([]byte, 32)
for j := range h {
h[j] = byte(i + j)
}
b[i].Size = int32(i)
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b[i].Hash = h
}
return b
}
var f1, f2, f3 protocol.FileInfo
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var folders = []string{"folder1", "folder2"}
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func init() {
blocks := genBlocks(30)
f1 = protocol.FileInfo{
Name: "f1",
Blocks: blocks[:10],
}
f2 = protocol.FileInfo{
Name: "f2",
Blocks: blocks[10:20],
}
f3 = protocol.FileInfo{
Name: "f3",
Blocks: blocks[20:],
}
}
func setup() (*Instance, *BlockFinder) {
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// Setup
db := OpenMemory()
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return db, NewBlockFinder(db)
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}
func dbEmpty(db *Instance) bool {
iter := db.NewIterator(util.BytesPrefix([]byte{KeyTypeBlock}), nil)
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defer iter.Release()
return !iter.Next()
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}
func TestBlockMapAddUpdateWipe(t *testing.T) {
db, f := setup()
if !dbEmpty(db) {
t.Fatal("db not empty")
}
m := NewBlockMap(db, db.folderIdx.ID([]byte("folder1")))
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f3.Type = protocol.FileInfoTypeDirectory
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err := m.Add([]protocol.FileInfo{f1, f2, f3})
if err != nil {
t.Fatal(err)
}
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f.Iterate(folders, f1.Blocks[0].Hash, func(folder, file string, index int32) bool {
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if folder != "folder1" || file != "f1" || index != 0 {
t.Fatal("Mismatch")
}
return true
})
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f.Iterate(folders, f2.Blocks[0].Hash, func(folder, file string, index int32) bool {
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if folder != "folder1" || file != "f2" || index != 0 {
t.Fatal("Mismatch")
}
return true
})
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f.Iterate(folders, f3.Blocks[0].Hash, func(folder, file string, index int32) bool {
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t.Fatal("Unexpected block")
return true
})
f1.Deleted = true
f2.LocalFlags = protocol.FlagLocalMustRescan // one of the invalid markers
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// Should remove
err = m.Update([]protocol.FileInfo{f1, f2, f3})
if err != nil {
t.Fatal(err)
}
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f.Iterate(folders, f1.Blocks[0].Hash, func(folder, file string, index int32) bool {
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t.Fatal("Unexpected block")
return false
})
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f.Iterate(folders, f2.Blocks[0].Hash, func(folder, file string, index int32) bool {
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t.Fatal("Unexpected block")
return false
})
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f.Iterate(folders, f3.Blocks[0].Hash, func(folder, file string, index int32) bool {
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if folder != "folder1" || file != "f3" || index != 0 {
t.Fatal("Mismatch")
}
return true
})
err = m.Drop()
if err != nil {
t.Fatal(err)
}
if !dbEmpty(db) {
t.Fatal("db not empty")
}
// Should not add
err = m.Add([]protocol.FileInfo{f1, f2})
if err != nil {
t.Fatal(err)
}
if !dbEmpty(db) {
t.Fatal("db not empty")
}
f1.Deleted = false
f1.LocalFlags = 0
f2.Deleted = false
f2.LocalFlags = 0
f3.Deleted = false
f3.LocalFlags = 0
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}
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func TestBlockFinderLookup(t *testing.T) {
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db, f := setup()
m1 := NewBlockMap(db, db.folderIdx.ID([]byte("folder1")))
m2 := NewBlockMap(db, db.folderIdx.ID([]byte("folder2")))
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err := m1.Add([]protocol.FileInfo{f1})
if err != nil {
t.Fatal(err)
}
err = m2.Add([]protocol.FileInfo{f1})
if err != nil {
t.Fatal(err)
}
counter := 0
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f.Iterate(folders, f1.Blocks[0].Hash, func(folder, file string, index int32) bool {
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counter++
switch counter {
case 1:
if folder != "folder1" || file != "f1" || index != 0 {
t.Fatal("Mismatch")
}
case 2:
if folder != "folder2" || file != "f1" || index != 0 {
t.Fatal("Mismatch")
}
default:
t.Fatal("Unexpected block")
}
return false
})
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if counter != 2 {
t.Fatal("Incorrect count", counter)
}
f1.Deleted = true
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err = m1.Update([]protocol.FileInfo{f1})
if err != nil {
t.Fatal(err)
}
counter = 0
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f.Iterate(folders, f1.Blocks[0].Hash, func(folder, file string, index int32) bool {
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counter++
switch counter {
case 1:
if folder != "folder2" || file != "f1" || index != 0 {
t.Fatal("Mismatch")
}
default:
t.Fatal("Unexpected block")
}
return false
})
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if counter != 1 {
t.Fatal("Incorrect count")
}
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f1.Deleted = false
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}