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package main_test
import (
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
bolt "go.etcd.io/bbolt"
main "go.etcd.io/bbolt/cmd/bbolt"
"go.etcd.io/bbolt/internal/btesting"
"go.etcd.io/bbolt/internal/common"
)
func TestSurgery_Freelist_Abandon(t *testing.T) {
pageSize := 4096
db := btesting.MustCreateDBWithOption(t, &bolt.Options{PageSize: pageSize})
srcPath := db.Path()
defer requireDBNoChange(t, dbData(t, srcPath), srcPath)
rootCmd := main.NewRootCommand()
output := filepath.Join(t.TempDir(), "db")
rootCmd.SetArgs([]string{
"surgery", "freelist", "abandon", srcPath,
"--output", output,
})
err := rootCmd.Execute()
require.NoError(t, err)
meta0 := loadMetaPage(t, output, 0)
assert.Equal(t, common.PgidNoFreelist, meta0.Freelist())
meta1 := loadMetaPage(t, output, 1)
assert.Equal(t, common.PgidNoFreelist, meta1.Freelist())
}
func TestSurgery_Freelist_Rebuild(t *testing.T) {
testCases := []struct {
name string
hasFreelist bool
expectedError error
}{
{
name: "normal operation",
hasFreelist: false,
expectedError: nil,
},
{
name: "already has freelist",
hasFreelist: true,
expectedError: main.ErrSurgeryFreelistAlreadyExist,
},
}
for _, tc := range testCases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
pageSize := 4096
db := btesting.MustCreateDBWithOption(t, &bolt.Options{
PageSize: pageSize,
NoFreelistSync: !tc.hasFreelist,
})
srcPath := db.Path()
err := db.Update(func(tx *bolt.Tx) error {
// do nothing
return nil
})
require.NoError(t, err)
defer requireDBNoChange(t, dbData(t, srcPath), srcPath)
// Verify the freelist isn't synced in the beginning
meta := readMetaPage(t, srcPath)
if tc.hasFreelist {
if meta.Freelist() <= 1 || meta.Freelist() >= meta.Pgid() {
t.Fatalf("freelist (%d) isn't in the valid range (1, %d)", meta.Freelist(), meta.Pgid())
}
} else {
require.Equal(t, common.PgidNoFreelist, meta.Freelist())
}
// Execute `surgery freelist rebuild` command
rootCmd := main.NewRootCommand()
output := filepath.Join(t.TempDir(), "db")
rootCmd.SetArgs([]string{
"surgery", "freelist", "rebuild", srcPath,
"--output", output,
})
err = rootCmd.Execute()
require.Equal(t, tc.expectedError, err)
if tc.expectedError == nil {
// Verify the freelist has already been rebuilt.
meta = readMetaPage(t, output)
if meta.Freelist() <= 1 || meta.Freelist() >= meta.Pgid() {
t.Fatalf("freelist (%d) isn't in the valid range (1, %d)", meta.Freelist(), meta.Pgid())
}
}
})
}
}
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