163 lines
3.1 KiB
Go
163 lines
3.1 KiB
Go
// Copyright 2016 The etcd Authors
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//
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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 tcpproxy
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import (
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"fmt"
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"io"
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"net"
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"net/http"
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"net/http/httptest"
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"net/url"
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"testing"
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)
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func TestUserspaceProxy(t *testing.T) {
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l, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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defer l.Close()
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want := "hello proxy"
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprint(w, want)
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}))
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defer ts.Close()
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u, err := url.Parse(ts.URL)
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if err != nil {
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t.Fatal(err)
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}
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var port uint16
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fmt.Sscanf(u.Port(), "%d", &port)
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p := TCPProxy{
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Listener: l,
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Endpoints: []*net.SRV{{Target: u.Hostname(), Port: port}},
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}
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go p.Run()
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defer p.Stop()
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u.Host = l.Addr().String()
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res, err := http.Get(u.String())
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if err != nil {
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t.Fatal(err)
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}
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got, gerr := io.ReadAll(res.Body)
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res.Body.Close()
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if gerr != nil {
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t.Fatal(gerr)
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}
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if string(got) != want {
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t.Errorf("got = %s, want %s", got, want)
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}
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}
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func TestUserspaceProxyPriority(t *testing.T) {
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l, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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defer l.Close()
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backends := []struct {
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Payload string
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Priority uint16
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}{
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{"hello proxy 1", 1},
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{"hello proxy 2", 2},
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{"hello proxy 3", 3},
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}
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var eps []*net.SRV
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var front *url.URL
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for _, b := range backends {
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backend := b
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprint(w, backend.Payload)
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}))
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defer ts.Close()
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front, err = url.Parse(ts.URL)
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if err != nil {
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t.Fatal(err)
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}
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var port uint16
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fmt.Sscanf(front.Port(), "%d", &port)
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ep := &net.SRV{Target: front.Hostname(), Port: port, Priority: backend.Priority}
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eps = append(eps, ep)
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}
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p := TCPProxy{
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Listener: l,
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Endpoints: eps,
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}
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go p.Run()
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defer p.Stop()
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front.Host = l.Addr().String()
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res, err := http.Get(front.String())
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if err != nil {
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t.Fatal(err)
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}
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got, gerr := io.ReadAll(res.Body)
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res.Body.Close()
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if gerr != nil {
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t.Fatal(gerr)
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}
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want := "hello proxy 1"
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if string(got) != want {
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t.Errorf("got = %s, want %s", got, want)
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}
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}
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func TestFormatAddr(t *testing.T) {
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addrs := []struct {
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host string
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port uint16
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expectedAddr string
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}{
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{
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"192.168.1.10",
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2379,
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"192.168.1.10:2379",
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},
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{
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"::1",
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2379,
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"[::1]:2379",
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},
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{
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"2001:db8::ff00:42:8329",
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80,
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"[2001:db8::ff00:42:8329]:80",
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},
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}
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for _, addr := range addrs {
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actualAddr := formatAddr(addr.host, addr.port)
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if actualAddr != addr.expectedAddr {
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t.Errorf("actualAddr: %s, expectedAddr: %s", actualAddr, addr.expectedAddr)
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}
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}
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}
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