214 lines
6.7 KiB
Go
214 lines
6.7 KiB
Go
// Copyright 2020 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cluster
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import (
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"bufio"
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context2 "context"
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"fmt"
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"io"
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"net"
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"sync"
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"testing"
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"time"
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"github.com/go-kit/log"
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"github.com/stretchr/testify/require"
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)
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var logger = log.NewNopLogger()
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func TestNewTLSTransport(t *testing.T) {
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testCases := []struct {
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bindAddr string
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bindPort int
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tlsConfFile string
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err string
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}{
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{err: "must specify TLSTransportConfig"},
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{err: "invalid bind address \"\"", tlsConfFile: "testdata/tls_config_node1.yml"},
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{bindAddr: "abc123", err: "invalid bind address \"abc123\"", tlsConfFile: "testdata/tls_config_node1.yml"},
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{bindAddr: localhost, bindPort: 0, tlsConfFile: "testdata/tls_config_node1.yml"},
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{bindAddr: localhost, bindPort: 9094, tlsConfFile: "testdata/tls_config_node2.yml"},
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}
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l := log.NewNopLogger()
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for _, tc := range testCases {
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cfg := mustTLSTransportConfig(tc.tlsConfFile)
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transport, err := NewTLSTransport(context2.Background(), l, nil, tc.bindAddr, tc.bindPort, cfg)
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if len(tc.err) > 0 {
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require.Equal(t, tc.err, err.Error())
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require.Nil(t, transport)
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} else {
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require.Nil(t, err)
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require.Equal(t, tc.bindAddr, transport.bindAddr)
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require.Equal(t, tc.bindPort, transport.bindPort)
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require.Equal(t, l, transport.logger)
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require.NotNil(t, transport.listener)
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transport.Shutdown()
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}
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}
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}
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const localhost = "127.0.0.1"
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func TestFinalAdvertiseAddr(t *testing.T) {
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testCases := []struct {
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bindAddr string
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bindPort int
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inputIp string
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inputPort int
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expectedIp string
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expectedPort int
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expectedError string
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}{
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{bindAddr: localhost, bindPort: 9094, inputIp: "10.0.0.5", inputPort: 54231, expectedIp: "10.0.0.5", expectedPort: 54231},
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{bindAddr: localhost, bindPort: 9093, inputIp: "invalid", inputPort: 54231, expectedError: "failed to parse advertise address \"invalid\""},
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{bindAddr: "0.0.0.0", bindPort: 0, inputIp: "", inputPort: 0, expectedIp: "random"},
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{bindAddr: localhost, bindPort: 0, inputIp: "", inputPort: 0, expectedIp: localhost},
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{bindAddr: localhost, bindPort: 9095, inputIp: "", inputPort: 0, expectedIp: localhost, expectedPort: 9095},
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}
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for _, tc := range testCases {
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tlsConf := mustTLSTransportConfig("testdata/tls_config_node1.yml")
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transport, err := NewTLSTransport(context2.Background(), logger, nil, tc.bindAddr, tc.bindPort, tlsConf)
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require.Nil(t, err)
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ip, port, err := transport.FinalAdvertiseAddr(tc.inputIp, tc.inputPort)
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if len(tc.expectedError) > 0 {
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require.Equal(t, tc.expectedError, err.Error())
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} else {
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require.Nil(t, err)
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if tc.expectedPort == 0 {
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require.True(t, tc.expectedPort < port)
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require.True(t, uint32(port) <= uint32(1<<32-1))
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} else {
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require.Equal(t, tc.expectedPort, port)
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}
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if tc.expectedIp == "random" {
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require.NotNil(t, ip)
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} else {
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require.Equal(t, tc.expectedIp, ip.String())
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}
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}
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transport.Shutdown()
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}
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}
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func TestWriteTo(t *testing.T) {
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tlsConf1 := mustTLSTransportConfig("testdata/tls_config_node1.yml")
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t1, _ := NewTLSTransport(context2.Background(), logger, nil, "127.0.0.1", 0, tlsConf1)
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defer t1.Shutdown()
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tlsConf2 := mustTLSTransportConfig("testdata/tls_config_node2.yml")
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t2, _ := NewTLSTransport(context2.Background(), logger, nil, "127.0.0.1", 0, tlsConf2)
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defer t2.Shutdown()
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from := fmt.Sprintf("%s:%d", t1.bindAddr, t1.GetAutoBindPort())
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to := fmt.Sprintf("%s:%d", t2.bindAddr, t2.GetAutoBindPort())
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sent := []byte(("test packet"))
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_, err := t1.WriteTo(sent, to)
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require.Nil(t, err)
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packet := <-t2.PacketCh()
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require.Equal(t, sent, packet.Buf)
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require.Equal(t, from, packet.From.String())
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}
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func BenchmarkWriteTo(b *testing.B) {
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tlsConf1 := mustTLSTransportConfig("testdata/tls_config_node1.yml")
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t1, _ := NewTLSTransport(context2.Background(), logger, nil, "127.0.0.1", 0, tlsConf1)
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defer t1.Shutdown()
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tlsConf2 := mustTLSTransportConfig("testdata/tls_config_node2.yml")
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t2, _ := NewTLSTransport(context2.Background(), logger, nil, "127.0.0.1", 0, tlsConf2)
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defer t2.Shutdown()
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b.ResetTimer()
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from := fmt.Sprintf("%s:%d", t1.bindAddr, t1.GetAutoBindPort())
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to := fmt.Sprintf("%s:%d", t2.bindAddr, t2.GetAutoBindPort())
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sent := []byte(("test packet"))
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_, err := t1.WriteTo(sent, to)
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require.Nil(b, err)
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packet := <-t2.PacketCh()
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require.Equal(b, sent, packet.Buf)
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require.Equal(b, from, packet.From.String())
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}
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func TestDialTimout(t *testing.T) {
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tlsConf1 := mustTLSTransportConfig("testdata/tls_config_node1.yml")
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t1, err := NewTLSTransport(context2.Background(), logger, nil, "127.0.0.1", 0, tlsConf1)
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require.Nil(t, err)
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defer t1.Shutdown()
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tlsConf2 := mustTLSTransportConfig("testdata/tls_config_node2.yml")
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t2, err := NewTLSTransport(context2.Background(), logger, nil, "127.0.0.1", 0, tlsConf2)
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require.Nil(t, err)
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defer t2.Shutdown()
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addr := fmt.Sprintf("%s:%d", t2.bindAddr, t2.GetAutoBindPort())
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from, err := t1.DialTimeout(addr, 5*time.Second)
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require.Nil(t, err)
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defer from.Close()
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var to net.Conn
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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to = <-t2.StreamCh()
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wg.Done()
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}()
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sent := []byte(("test stream"))
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m, err := from.Write(sent)
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require.Nil(t, err)
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require.Greater(t, m, 0)
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wg.Wait()
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reader := bufio.NewReader(to)
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buf := make([]byte, len(sent))
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n, err := io.ReadFull(reader, buf)
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require.Nil(t, err)
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require.Equal(t, len(sent), n)
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require.Equal(t, sent, buf)
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}
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type logWr struct {
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bytes []byte
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}
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func (l *logWr) Write(p []byte) (n int, err error) {
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l.bytes = append(l.bytes, p...)
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return len(p), nil
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}
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func TestShutdown(t *testing.T) {
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tlsConf1 := mustTLSTransportConfig("testdata/tls_config_node1.yml")
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l := &logWr{}
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t1, _ := NewTLSTransport(context2.Background(), log.NewLogfmtLogger(l), nil, "127.0.0.1", 0, tlsConf1)
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// Sleeping to make sure listeners have started and can subsequently be shut down gracefully.
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time.Sleep(500 * time.Millisecond)
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err := t1.Shutdown()
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require.Nil(t, err)
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require.NotContains(t, string(l.bytes), "use of closed network connection")
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require.Contains(t, string(l.bytes), "shutting down tls transport")
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}
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func mustTLSTransportConfig(filename string) *TLSTransportConfig {
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config, err := GetTLSTransportConfig(filename)
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if err != nil {
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panic(err)
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}
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return config
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}
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