txn

type Client interface {
	// NewTxn create a txn to execute read and write command
	NewTxn(options ...client.TxnOption) (Txn, error)
}

type Cluster interface {
	// Start start the cluster, block until all service started and all DNShard created
	Start()
	// Stop stop the cluster
	Stop()
	// Env return the test cluster env
	Env() service.Cluster
	// NewClient create a test txn client
	NewClient() Client
	// GetLogger returns the logger
	GetLogger() *zap.Logger
}

type SQLBasedTxn interface {
	Txn
	// ExecSQL exec sql, ddl/insert/update/delete
	ExecSQL(sql string) (sql.Result, error)
	// ExecSQLQuery exec query
	ExecSQLQuery(sql string) (*sql.Rows, error)
}

type Txn interface {
	// Commit commit the txn
	Commit() error
	// Rollback rollback the txn
	Rollback() error
	// Read read by key
	Read(key string) (string, error)
	// Write write key
	Write(key, value string) error
}