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// Copyright 2019 Aporeto Inc.
// 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 wsc
import (
"context"
"fmt"
)
// A MockWebsocket is a utility to write unit
// tests on websockets.
type MockWebsocket interface {
NextRead(data []byte)
LastWrite() chan []byte
NextDone(err error)
Websocket
}
type mockWebsocket struct {
readChan chan []byte
writeChan chan []byte
doneChan chan error
errChan chan error
cancel context.CancelFunc
}
// NewMockWebsocket returns a mocked Websocket that can be used
// in unit tests.
func NewMockWebsocket(ctx context.Context) MockWebsocket {
_, cancel := context.WithCancel(ctx)
return &mockWebsocket{
readChan: make(chan []byte, 64),
writeChan: make(chan []byte, 64),
doneChan: make(chan error, 64),
errChan: make(chan error, 1),
cancel: cancel,
}
}
func (s *mockWebsocket) Write(data []byte) { s.writeChan <- data }
func (s *mockWebsocket) Read() chan []byte { return s.readChan }
func (s *mockWebsocket) Done() chan error { return s.doneChan }
func (s *mockWebsocket) Close(code int) { s.doneChan <- fmt.Errorf("%d", code) }
func (s *mockWebsocket) NextRead(data []byte) { s.readChan <- data }
func (s *mockWebsocket) LastWrite() chan []byte { return s.writeChan }
func (s *mockWebsocket) NextDone(err error) { s.doneChan <- err }
func (s *mockWebsocket) Error() chan error { return s.errChan }
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