118 lines
2.9 KiB
Go
118 lines
2.9 KiB
Go
package wtmock
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import (
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"fmt"
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"net"
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"time"
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"github.com/btcsuite/btcd/btcec"
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"github.com/lightningnetwork/lnd/watchtower/wtserver"
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)
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// MockPeer emulates a single endpoint of brontide transport.
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type MockPeer struct {
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remotePub *btcec.PublicKey
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remoteAddr net.Addr
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IncomingMsgs chan []byte
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OutgoingMsgs chan []byte
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writeDeadline <-chan time.Time
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readDeadline <-chan time.Time
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Quit chan struct{}
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}
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// NewMockPeer returns a fresh MockPeer.
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func NewMockPeer(pk *btcec.PublicKey, addr net.Addr, bufferSize int) *MockPeer {
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return &MockPeer{
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remotePub: pk,
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remoteAddr: addr,
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IncomingMsgs: make(chan []byte, bufferSize),
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OutgoingMsgs: make(chan []byte, bufferSize),
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Quit: make(chan struct{}),
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}
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}
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// Write sends the raw bytes as the next full message read to the remote peer.
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// The write will fail if either party closes the connection or the write
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// deadline expires. The passed bytes slice is copied before sending, thus the
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// bytes may be reused once the method returns.
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func (p *MockPeer) Write(b []byte) (n int, err error) {
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select {
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case p.OutgoingMsgs <- b:
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return len(b), nil
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case <-p.writeDeadline:
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return 0, fmt.Errorf("write timeout expired")
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case <-p.Quit:
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return 0, fmt.Errorf("connection closed")
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}
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}
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// Close tearsdown the connection, and fails any pending reads or writes.
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func (p *MockPeer) Close() error {
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select {
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case <-p.Quit:
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return fmt.Errorf("connection already closed")
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default:
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close(p.Quit)
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return nil
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}
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}
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// ReadNextMessage returns the raw bytes of the next full message read from the
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// remote peer. The read will fail if either party closes the connection or the
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// read deadline expires.
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func (p *MockPeer) ReadNextMessage() ([]byte, error) {
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select {
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case b := <-p.IncomingMsgs:
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return b, nil
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case <-p.readDeadline:
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return nil, fmt.Errorf("read timeout expired")
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case <-p.Quit:
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return nil, fmt.Errorf("connection closed")
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}
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}
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// SetWriteDeadline initializes a timer that will cause any pending writes to
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// fail at time t. If t is zero, the deadline is infinite.
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func (p *MockPeer) SetWriteDeadline(t time.Time) error {
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if t.IsZero() {
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p.writeDeadline = nil
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return nil
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}
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duration := time.Until(t)
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p.writeDeadline = time.After(duration)
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return nil
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}
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// SetReadDeadline initializes a timer that will cause any pending reads to fail
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// at time t. If t is zero, the deadline is infinite.
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func (p *MockPeer) SetReadDeadline(t time.Time) error {
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if t.IsZero() {
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p.readDeadline = nil
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return nil
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}
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duration := time.Until(t)
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p.readDeadline = time.After(duration)
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return nil
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}
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// RemotePub returns the public key of the remote peer.
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func (p *MockPeer) RemotePub() *btcec.PublicKey {
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return p.remotePub
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}
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// RemoteAddr returns the net address of the remote peer.
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func (p *MockPeer) RemoteAddr() net.Addr {
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return p.remoteAddr
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}
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// Compile-time constraint ensuring the MockPeer implements the wserver.Peer
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// interface.
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var _ wtserver.Peer = (*MockPeer)(nil)
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