/
vppagent_mock.go
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/
vppagent_mock.go
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// Copyright (c) 2019 Bell Canada, Pantheon Technologies and/or its affiliates.
//
// Licensed 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 vppagent
import (
"fmt"
"sync"
"github.com/contiv/vpp/mock/localclient"
"github.com/ligato/cn-infra/datasync/syncbase"
)
// MockVPPAgent mocks vpp agent behaviour related to transaction committing to vpp agent using vpp agent client. MockVPPAgent
// can register multiple handlers that mock different parts of transaction commit parts (i.e. SRv6, Routes, ...)
type MockVPPAgent struct {
sync.Mutex
handlers []MockTransationHandler
}
// MockTransationHandler is API for mocked handlers handling the whole transaction or only part of the transaction. In case of
// partial handling of transaction, parts of transactions handled create some logical group (i.e. SRv6, Routes, Interfaces,...)
type MockTransationHandler interface {
// ApplyTxn is called when applying transaction created by Contiv code for VPP-Agent to set up VPP. Data from transaction
// are used by mock transaction handler, usually for exposing to unit tests for verification purposes.
ApplyTxn(txn *localclient.Txn, latestRevs *syncbase.PrevRevisions) error
}
func NewMockVPPAgent(handlers ...MockTransationHandler) *MockVPPAgent {
return &MockVPPAgent{
handlers: handlers,
}
}
func (m *MockVPPAgent) ApplyTxn(txn *localclient.Txn, latestRevs *syncbase.PrevRevisions) error {
m.Lock()
defer m.Unlock()
for _, handler := range m.handlers {
if err := handler.ApplyTxn(txn, latestRevs); err != nil {
return fmt.Errorf("error in handler %T: %v", handler, err)
}
}
return nil
}