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heartbeat_test.go
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/
heartbeat_test.go
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// Copyright The OpenTelemetry Authors
//
// 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:https://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 fluentforwardreceiver
import (
"context"
"net"
"testing"
"time"
"github.com/stretchr/testify/require"
"go.uber.org/zap"
)
func TestUDPHeartbeat(t *testing.T) {
udpSock, err := net.ListenPacket("udp", "127.0.0.1:0")
require.Nil(t, err)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
go respondToHeartbeats(ctx, udpSock, zap.NewNop())
conn, err := net.Dial("udp", udpSock.LocalAddr().String())
require.Nil(t, err)
n, err := conn.Write([]byte{0x00})
require.Nil(t, err)
require.Equal(t, 1, n)
buf := make([]byte, 1)
require.NoError(t, conn.SetReadDeadline(time.Now().Add(5*time.Second)))
n, err = conn.Read(buf)
require.Nil(t, err)
require.Equal(t, 1, n)
require.Equal(t, uint8(0x00), buf[0])
}