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package backend
import (
"context"
"errors"
"io"
"sync/atomic"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum-optimism/optimism/op-supervisor/supervisor/frontend"
"github.com/ethereum-optimism/optimism/op-supervisor/supervisor/types"
)
type MockBackend struct {
started atomic.Bool
}
var _ frontend.Backend = (*MockBackend)(nil)
var _ io.Closer = (*MockBackend)(nil)
func NewMockBackend() *MockBackend {
return &MockBackend{}
}
func (m *MockBackend) Start(ctx context.Context) error {
if !m.started.CompareAndSwap(false, true) {
return errors.New("already started")
}
return nil
}
func (m *MockBackend) Stop(ctx context.Context) error {
if !m.started.CompareAndSwap(true, false) {
return errors.New("already stopped")
}
return nil
}
func (m *MockBackend) AddL2RPC(ctx context.Context, rpc string) error {
return nil
}
func (m *MockBackend) CheckMessage(identifier types.Identifier, payloadHash common.Hash) (types.SafetyLevel, error) {
return types.CrossUnsafe, nil
}
func (m *MockBackend) CheckMessages(messages []types.Message, minSafety types.SafetyLevel) error {
return nil
}
func (m *MockBackend) CheckBlock(chainID *hexutil.U256, blockHash common.Hash, blockNumber hexutil.Uint64) (types.SafetyLevel, error) {
return types.CrossUnsafe, nil
}
func (m *MockBackend) Close() error {
return nil
}