mirror of
https://github.com/mochi-mqtt/server.git
synced 2025-10-05 16:17:01 +08:00
265 lines
6.6 KiB
Go
265 lines
6.6 KiB
Go
package mqtt
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import (
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"net"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"github.com/mochi-co/mqtt/circ"
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"github.com/mochi-co/mqtt/packets"
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)
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func TestNewProcessor(t *testing.T) {
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conn := new(MockNetConn)
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p := NewProcessor(conn, circ.NewReader(16, 4), circ.NewWriter(16, 4))
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require.NotNil(t, p.R)
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}
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func BenchmarkNewProcessor(b *testing.B) {
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conn := new(MockNetConn)
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r := circ.NewReader(16, 4)
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w := circ.NewWriter(16, 4)
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for n := 0; n < b.N; n++ {
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NewProcessor(conn, r, w)
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}
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}
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func TestProcessorRefreshDeadline(t *testing.T) {
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conn := new(MockNetConn)
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p := NewProcessor(conn, circ.NewReader(16, 4), circ.NewWriter(16, 4))
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dl := p.Conn.(*MockNetConn).Deadline
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p.RefreshDeadline(10)
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require.NotEqual(t, dl, p.Conn.(*MockNetConn).Deadline)
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}
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func BenchmarkProcessorRefreshDeadline(b *testing.B) {
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conn := new(MockNetConn)
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p := NewProcessor(conn, circ.NewReader(16, 4), circ.NewWriter(16, 4))
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for n := 0; n < b.N; n++ {
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p.RefreshDeadline(10)
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}
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}
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func TestProcessorReadFixedHeader(t *testing.T) {
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conn := new(MockNetConn)
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p := NewProcessor(conn, circ.NewReader(16, 4), circ.NewWriter(16, 4))
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// Test null data.
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fh := new(packets.FixedHeader)
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err := p.ReadFixedHeader(fh)
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require.Error(t, err)
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// Test insufficient peeking.
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fh = new(packets.FixedHeader)
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p.R.Set([]byte{packets.Connect << 4}, 0, 1)
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p.R.SetPos(0, 1)
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err = p.ReadFixedHeader(fh)
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require.Error(t, err)
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fh = new(packets.FixedHeader)
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p.R.Set([]byte{packets.Connect << 4, 0x00}, 0, 2)
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p.R.SetPos(0, 2)
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err = p.ReadFixedHeader(fh)
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require.NoError(t, err)
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tail, head := p.R.GetPos()
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require.Equal(t, int64(2), tail)
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require.Equal(t, int64(2), head)
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}
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func TestProcessorRead(t *testing.T) {
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conn := new(MockNetConn)
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var fh packets.FixedHeader
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p := NewProcessor(conn, circ.NewReader(32, 4), circ.NewWriter(32, 4))
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p.R.Set([]byte{
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byte(packets.Publish << 4), 18, // Fixed header
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0, 5, // Topic Name - LSB+MSB
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'a', '/', 'b', '/', 'c', // Topic Name
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'h', 'e', 'l', 'l', 'o', ' ', 'm', 'o', 'c', 'h', 'i', // Payload
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}, 0, 20)
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p.R.SetPos(0, 20)
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err := p.ReadFixedHeader(&fh)
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require.NoError(t, err)
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pko, err := p.Read()
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require.NoError(t, err)
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require.Equal(t, &packets.PublishPacket{
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FixedHeader: packets.FixedHeader{
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Type: packets.Publish,
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Remaining: 18,
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},
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TopicName: "a/b/c",
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Payload: []byte("hello mochi"),
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}, pko)
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}
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func TestProcessorReadFail(t *testing.T) {
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conn := new(MockNetConn)
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p := NewProcessor(conn, circ.NewReader(32, 4), circ.NewWriter(32, 4))
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p.R.Set([]byte{
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byte(packets.Publish << 4), 3, // Fixed header
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0, 5, // Topic Name - LSB+MSB
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'a', '/',
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}, 0, 6)
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p.R.SetPos(0, 8)
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var fh packets.FixedHeader
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err := p.ReadFixedHeader(&fh)
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require.NoError(t, err)
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_, err = p.Read()
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require.Error(t, err)
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}
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// This is a super important test. It checks whether or not subsequent packets
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// mutate each other. This happens when you use a single byte buffer for decoding
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// multiple packets.
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func TestProcessorReadPacketNoOverwrite(t *testing.T) {
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conn := new(MockNetConn)
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pk1 := []byte{
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byte(packets.Publish << 4), 12, // Fixed header
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0, 5, // Topic Name - LSB+MSB
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'a', '/', 'b', '/', 'c', // Topic Name
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'h', 'e', 'l', 'l', 'o', // Payload
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}
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pk2 := []byte{
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byte(packets.Publish << 4), 14, // Fixed header
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0, 5, // Topic Name - LSB+MSB
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'x', '/', 'y', '/', 'z', // Topic Name
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'y', 'a', 'h', 'a', 'l', 'l', 'o', // Payload
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}
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p := NewProcessor(conn, circ.NewReader(32, 4), circ.NewWriter(32, 4))
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p.R.Set(pk1, 0, len(pk1))
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p.R.SetPos(0, int64(len(pk1)))
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var fh packets.FixedHeader
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err := p.ReadFixedHeader(&fh)
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require.NoError(t, err)
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o1, err := p.Read()
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require.NoError(t, err)
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require.Equal(t, []byte{'h', 'e', 'l', 'l', 'o'}, o1.(*packets.PublishPacket).Payload)
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require.Equal(t, []byte{'h', 'e', 'l', 'l', 'o'}, pk1[9:])
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p.R.Set(pk2, 0, len(pk2))
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p.R.SetPos(0, int64(len(pk2)))
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err = p.ReadFixedHeader(&fh)
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require.NoError(t, err)
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o2, err := p.Read()
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require.NoError(t, err)
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require.Equal(t, []byte{'y', 'a', 'h', 'a', 'l', 'l', 'o'}, o2.(*packets.PublishPacket).Payload)
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require.Equal(t, []byte{'h', 'e', 'l', 'l', 'o'}, o1.(*packets.PublishPacket).Payload, "o1 payload was mutated")
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}
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func TestProcessorReadPacketNil(t *testing.T) {
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conn := new(MockNetConn)
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p := NewProcessor(conn, circ.NewReader(32, 4), circ.NewWriter(32, 4))
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var fh packets.FixedHeader
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// Check for un-specified packet.
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// Create a ping request packet with a false fixedheader type code.
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pk := &packets.PingreqPacket{FixedHeader: packets.FixedHeader{Type: packets.Pingreq}}
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pk.FixedHeader.Type = 99
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p.R.Set([]byte{0, 0}, 0, 2)
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p.R.SetPos(0, 2)
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err := p.ReadFixedHeader(&fh)
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require.NoError(t, err)
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_, err = p.Read()
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require.Error(t, err)
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}
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func TestProcessorReadPacketReadOverflow(t *testing.T) {
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conn := new(MockNetConn)
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p := NewProcessor(conn, circ.NewReader(32, 4), circ.NewWriter(32, 4))
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var fh packets.FixedHeader
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// Check for un-specified packet.
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// Create a ping request packet with a false fixedheader type code.
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pk := &packets.PingreqPacket{FixedHeader: packets.FixedHeader{Type: packets.Pingreq}}
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pk.FixedHeader.Type = 99
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p.R.Set([]byte{byte(packets.Connect << 4), 0}, 0, 2)
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p.R.SetPos(0, 2)
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err := p.ReadFixedHeader(&fh)
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require.NoError(t, err)
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p.FixedHeader.Remaining = 999999 // overflow buffer
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_, err = p.Read()
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require.Error(t, err)
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}
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// MockNetConn satisfies the net.Conn interface.
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type MockNetConn struct {
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ID string
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Deadline time.Time
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}
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// Read reads bytes from the net io.reader.
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func (m *MockNetConn) Read(b []byte) (n int, err error) {
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return 0, nil
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}
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// Read writes bytes to the net io.writer.
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func (m *MockNetConn) Write(b []byte) (n int, err error) {
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return 0, nil
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}
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// Close closes the net.Conn connection.
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func (m *MockNetConn) Close() error {
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return nil
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}
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// LocalAddr returns the local address of the request.
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func (m *MockNetConn) LocalAddr() net.Addr {
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return new(MockNetAddr)
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}
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// RemoteAddr returns the remove address of the request.
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func (m *MockNetConn) RemoteAddr() net.Addr {
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return new(MockNetAddr)
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}
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// SetDeadline sets the request deadline.
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func (m *MockNetConn) SetDeadline(t time.Time) error {
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m.Deadline = t
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return nil
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}
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// SetReadDeadline sets the read deadline.
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func (m *MockNetConn) SetReadDeadline(t time.Time) error {
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return nil
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}
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// SetWriteDeadline sets the write deadline.
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func (m *MockNetConn) SetWriteDeadline(t time.Time) error {
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return nil
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}
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// MockNetAddr satisfies net.Addr interface.
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type MockNetAddr struct{}
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// Network returns the network protocol.
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func (m *MockNetAddr) Network() string {
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return "tcp"
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}
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// String returns the network address.
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func (m *MockNetAddr) String() string {
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return "127.0.0.1"
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}
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