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streamMock.go
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streamMock.go
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package mock
import (
"bytes"
"io"
"sync"
"time"
"github.com/libp2p/go-libp2p-core/network"
"github.com/libp2p/go-libp2p-core/protocol"
)
type streamMock struct {
mutData sync.Mutex
buffStream *bytes.Buffer
pid protocol.ID
streamClosed bool
canRead bool
conn network.Conn
id string
}
// NewStreamMock -
func NewStreamMock() *streamMock {
return &streamMock{
mutData: sync.Mutex{},
buffStream: new(bytes.Buffer),
streamClosed: false,
canRead: false,
}
}
// Read -
func (sm *streamMock) Read(p []byte) (int, error) {
//just a mock implementation of blocking read
for {
time.Sleep(time.Millisecond * 10)
sm.mutData.Lock()
if sm.streamClosed {
sm.mutData.Unlock()
return 0, io.EOF
}
if sm.canRead {
n, err := sm.buffStream.Read(p)
sm.canRead = false
sm.mutData.Unlock()
return n, err
}
sm.mutData.Unlock()
}
}
// Write -
func (sm *streamMock) Write(p []byte) (int, error) {
sm.mutData.Lock()
n, err := sm.buffStream.Write(p)
if err == nil {
sm.canRead = true
}
sm.mutData.Unlock()
return n, err
}
// Close -
func (sm *streamMock) Close() error {
sm.mutData.Lock()
defer sm.mutData.Unlock()
sm.streamClosed = true
return nil
}
// Reset -
func (sm *streamMock) Reset() error {
sm.mutData.Lock()
defer sm.mutData.Unlock()
sm.buffStream.Reset()
sm.canRead = false
return nil
}
// SetDeadline -
func (sm *streamMock) SetDeadline(time.Time) error {
panic("implement me")
}
// SetReadDeadline -
func (sm *streamMock) SetReadDeadline(time.Time) error {
panic("implement me")
}
// SetWriteDeadline -
func (sm *streamMock) SetWriteDeadline(time.Time) error {
panic("implement me")
}
// Protocol -
func (sm *streamMock) Protocol() protocol.ID {
return sm.pid
}
// SetProtocol -
func (sm *streamMock) SetProtocol(pid protocol.ID) {
sm.pid = pid
}
// Stat -
func (sm *streamMock) Stat() network.Stat {
return network.Stat{
Direction: network.DirOutbound,
}
}
// Conn -
func (sm *streamMock) Conn() network.Conn {
return sm.conn
}
// SetConn -
func (sm *streamMock) SetConn(conn network.Conn) {
sm.conn = conn
}
// ID -
func (sm *streamMock) ID() string {
return sm.id
}
// SetID -
func (sm *streamMock) SetID(id string) {
sm.id = id
}
// CloseWrite -
func (sm *streamMock) CloseWrite() error {
sm.mutData.Lock()
defer sm.mutData.Unlock()
sm.streamClosed = true
return nil
}
// CloseRead -
func (sm *streamMock) CloseRead() error {
sm.mutData.Lock()
defer sm.mutData.Unlock()
sm.streamClosed = true
return nil
}