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db_test_exports.go
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db_test_exports.go
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/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
*/
package db
import (
"os"
"testing"
"github.com/spf13/viper"
"github.com/tecbot/gorocksdb"
)
// TestDBWrapper wraps the db. Can be used by other modules for testing
type TestDBWrapper struct {
performCleanup bool
}
// NewTestDBWrapper constructs a new TestDBWrapper
func NewTestDBWrapper() *TestDBWrapper {
return &TestDBWrapper{}
}
///////////////////////////
// Test db creation and cleanup functions
// CreateFreshDB This method closes existing db, remove the db dir and create db again.
// Can be called before starting a test so that data from other tests does not interfere
func (testDB *TestDBWrapper) CreateFreshDB(t *testing.T) {
// cleaning up test db here so that each test does not have to call it explicitly
// at the end of the test
testDB.cleanup()
testDB.removeDBPath()
t.Logf("Creating testDB")
err := CreateDB()
if err != nil {
t.Fatalf("Error in creating test db. Error = [%s]", err)
}
testDB.performCleanup = true
}
func (testDB *TestDBWrapper) cleanup() {
if testDB.performCleanup {
GetDBHandle().CloseDB()
testDB.performCleanup = false
}
}
func (testDB *TestDBWrapper) removeDBPath() {
dbPath := viper.GetString("peer.fileSystemPath")
os.RemoveAll(dbPath)
}
// WriteToDB tests can use this method for persisting a given batch to db
func (testDB *TestDBWrapper) WriteToDB(t *testing.T, writeBatch *gorocksdb.WriteBatch) {
opt := gorocksdb.NewDefaultWriteOptions()
defer opt.Destroy()
err := GetDBHandle().DB.Write(opt, writeBatch)
if err != nil {
t.Fatalf("Error while writing to db. Error:%s", err)
}
}
// GetFromStateCF tests can use this method for getting value from StateCF column-family
func (testDB *TestDBWrapper) GetFromStateCF(t *testing.T, key []byte) []byte {
openchainDB := GetDBHandle()
value, err := openchainDB.GetFromStateCF(key)
if err != nil {
t.Fatalf("Error while getting from db. Error:%s", err)
}
return value
}
// GetFromStateDeltaCF tests can use this method for getting value from StateDeltaCF column-family
func (testDB *TestDBWrapper) GetFromStateDeltaCF(t *testing.T, key []byte) []byte {
openchainDB := GetDBHandle()
value, err := openchainDB.GetFromStateDeltaCF(key)
if err != nil {
t.Fatalf("Error while getting from db. Error:%s", err)
}
return value
}