storj/storagenode/storagenodedb/migrations_test.go
Isaac Hess 7718802f0c
storagenode/storagenodedb: prepare for multiple databases (#3005)
* Migrate test: prepare for multiple databases

* Add copyright

* Fix unused variables

* Move data to testdata, split MultiDBSnapshot from MultiDBState
2019-09-11 14:31:46 -06:00

129 lines
3.5 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package storagenodedb_test
import (
"fmt"
"testing"
"github.com/stretchr/testify/require"
"github.com/zeebo/errs"
"go.uber.org/zap/zaptest"
"storj.io/storj/internal/dbutil/dbschema"
"storj.io/storj/internal/dbutil/sqliteutil"
"storj.io/storj/internal/testcontext"
"storj.io/storj/storagenode/storagenodedb"
"storj.io/storj/storagenode/storagenodedb/testdata"
)
// insertNewData will insert any NewData from the MultiDBState into the
// appropriate rawDB. This prepares the rawDB for the test comparing schema and
// data.
func insertNewData(mdbs *testdata.MultiDBState, rawDBs map[string]storagenodedb.SQLDB) error {
for dbName, dbState := range mdbs.DBStates {
if dbState.NewData == "" {
continue
}
rawDB, ok := rawDBs[dbName]
if !ok {
return errs.New("Failed to find DB %s", dbName)
}
_, err := rawDB.Exec(dbState.NewData)
if err != nil {
return err
}
}
return nil
}
// getSchemas queries the schema of each rawDB and returns a map of each rawDB's
// schema keyed by dbName
func getSchemas(rawDBs map[string]storagenodedb.SQLDB) (map[string]*dbschema.Schema, error) {
schemas := make(map[string]*dbschema.Schema)
for dbName, rawDB := range rawDBs {
schema, err := sqliteutil.QuerySchema(rawDB)
if err != nil {
return nil, err
}
// we don't care changes in versions table
schema.DropTable("versions")
schemas[dbName] = schema
}
return schemas, nil
}
// getSchemas queries the data of each rawDB and returns a map of each rawDB's
// data keyed by dbName
func getData(rawDBs map[string]storagenodedb.SQLDB, schemas map[string]*dbschema.Schema) (map[string]*dbschema.Data, error) {
data := make(map[string]*dbschema.Data)
for dbName, rawDB := range rawDBs {
datum, err := sqliteutil.QueryData(rawDB, schemas[dbName])
if err != nil {
return nil, err
}
data[dbName] = datum
}
return data, nil
}
func TestMigrate(t *testing.T) {
ctx := testcontext.New(t)
log := zaptest.NewLogger(t)
cfg := storagenodedb.Config{
Pieces: ctx.Dir("storage"),
Info2: ctx.Dir("storage") + "/info.db",
Kademlia: ctx.Dir("storage") + "/kademlia",
}
// create a new satellitedb connection
db, err := storagenodedb.New(log, cfg)
require.NoError(t, err)
defer func() { require.NoError(t, db.Close()) }()
rawDBs := db.RawDatabases()
// get migration for this database
migrations := db.Migration()
for i, step := range migrations.Steps {
// the schema is different when migration step is before the step, cannot test the layout
tag := fmt.Sprintf("#%d - v%d", i, step.Version)
// run migration up to a specific version
err := migrations.TargetVersion(step.Version).Run(log.Named("migrate"))
require.NoError(t, err, tag)
// find the matching expected version
expected, ok := testdata.States.FindVersion(step.Version)
require.True(t, ok)
// insert data for new tables
err = insertNewData(expected, rawDBs)
require.NoError(t, err, tag)
// load schema from database
schemas, err := getSchemas(rawDBs)
require.NoError(t, err, tag)
// load data from database
data, err := getData(rawDBs, schemas)
require.NoError(t, err, tag)
multiDBSnapshot, err := testdata.LoadMultiDBSnapshot(expected)
require.NoError(t, err, tag)
// verify schema and data for each db in the expected snapshot
for dbName, dbSnapshot := range multiDBSnapshot.DBSnapshots {
require.Equal(t, dbSnapshot.Schema, schemas[dbName], tag)
require.Equal(t, dbSnapshot.Data, data[dbName], tag)
}
}
}