357 lines
11 KiB
Go
357 lines
11 KiB
Go
// Copyright 2015 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 netutil
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import (
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"context"
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"errors"
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"fmt"
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"net"
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"net/url"
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"reflect"
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"strconv"
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"testing"
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"time"
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"go.uber.org/zap/zaptest"
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)
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func TestResolveTCPAddrs(t *testing.T) {
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defer func() { resolveTCPAddr = resolveTCPAddrDefault }()
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tests := []struct {
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urls [][]url.URL
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expected [][]url.URL
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hostMap map[string]string
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hasError bool
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}{
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{
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urls: [][]url.URL{
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{
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{Scheme: "http", Host: "127.0.0.1:4001"},
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{Scheme: "http", Host: "127.0.0.1:2379"},
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},
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{
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{Scheme: "http", Host: "127.0.0.1:7001"},
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{Scheme: "http", Host: "127.0.0.1:2380"},
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},
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},
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expected: [][]url.URL{
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{
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{Scheme: "http", Host: "127.0.0.1:4001"},
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{Scheme: "http", Host: "127.0.0.1:2379"},
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},
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{
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{Scheme: "http", Host: "127.0.0.1:7001"},
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{Scheme: "http", Host: "127.0.0.1:2380"},
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},
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},
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},
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{
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urls: [][]url.URL{
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{
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{Scheme: "http", Host: "infra0.example.com:4001"},
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{Scheme: "http", Host: "infra0.example.com:2379"},
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},
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{
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{Scheme: "http", Host: "infra0.example.com:7001"},
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{Scheme: "http", Host: "infra0.example.com:2380"},
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},
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},
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expected: [][]url.URL{
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{
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{Scheme: "http", Host: "10.0.1.10:4001"},
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{Scheme: "http", Host: "10.0.1.10:2379"},
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},
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{
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{Scheme: "http", Host: "10.0.1.10:7001"},
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{Scheme: "http", Host: "10.0.1.10:2380"},
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},
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},
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hostMap: map[string]string{
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"infra0.example.com": "10.0.1.10",
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},
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hasError: false,
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},
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{
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urls: [][]url.URL{
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{
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{Scheme: "http", Host: "infra0.example.com:4001"},
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{Scheme: "http", Host: "infra0.example.com:2379"},
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},
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{
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{Scheme: "http", Host: "infra0.example.com:7001"},
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{Scheme: "http", Host: "infra0.example.com:2380"},
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},
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},
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hostMap: map[string]string{
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"infra0.example.com": "",
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},
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hasError: true,
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},
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{
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urls: [][]url.URL{
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{
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{Scheme: "http", Host: "ssh://infra0.example.com:4001"},
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{Scheme: "http", Host: "ssh://infra0.example.com:2379"},
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},
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{
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{Scheme: "http", Host: "ssh://infra0.example.com:7001"},
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{Scheme: "http", Host: "ssh://infra0.example.com:2380"},
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},
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},
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hasError: true,
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},
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}
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for _, tt := range tests {
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resolveTCPAddr = func(ctx context.Context, addr string) (*net.TCPAddr, error) {
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host, port, err := net.SplitHostPort(addr)
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if err != nil {
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return nil, err
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}
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i, err := strconv.Atoi(port)
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if err != nil {
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return nil, err
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}
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if ip := net.ParseIP(host); ip != nil {
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return &net.TCPAddr{IP: ip, Port: i, Zone: ""}, nil
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}
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if tt.hostMap[host] == "" {
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return nil, errors.New("cannot resolve host")
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}
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return &net.TCPAddr{IP: net.ParseIP(tt.hostMap[host]), Port: i, Zone: ""}, nil
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}
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ctx, cancel := context.WithTimeout(context.TODO(), time.Second)
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urls, err := resolveTCPAddrs(ctx, zaptest.NewLogger(t), tt.urls)
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cancel()
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if tt.hasError {
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if err == nil {
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t.Errorf("expected error")
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}
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continue
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}
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if !reflect.DeepEqual(urls, tt.expected) {
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t.Errorf("expected: %v, got %v", tt.expected, urls)
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}
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}
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}
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func TestURLsEqual(t *testing.T) {
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defer func() { resolveTCPAddr = resolveTCPAddrDefault }()
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hostm := map[string]string{
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"example.com": "10.0.10.1",
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"first.com": "10.0.11.1",
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"second.com": "10.0.11.2",
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}
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resolveTCPAddr = func(ctx context.Context, addr string) (*net.TCPAddr, error) {
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host, port, err := net.SplitHostPort(addr)
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if err != nil {
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return nil, err
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}
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i, err := strconv.Atoi(port)
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if err != nil {
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return nil, err
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}
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if ip := net.ParseIP(host); ip != nil {
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return &net.TCPAddr{IP: ip, Port: i, Zone: ""}, nil
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}
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if hostm[host] == "" {
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return nil, errors.New("cannot resolve host")
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}
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return &net.TCPAddr{IP: net.ParseIP(hostm[host]), Port: i, Zone: ""}, nil
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}
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tests := []struct {
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n int
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a []url.URL
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b []url.URL
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expect bool
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err error
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}{
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{
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n: 0,
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a: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}},
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b: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}},
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expect: true,
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},
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{
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n: 1,
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a: []url.URL{{Scheme: "http", Host: "example.com:2379"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.10.1:2379"}},
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expect: true,
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},
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{
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n: 2,
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a: []url.URL{{Scheme: "http", Host: "example.com:2379"}},
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b: []url.URL{{Scheme: "https", Host: "10.0.10.1:2379"}},
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expect: false,
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err: errors.New(`resolved urls: "http://10.0.10.1:2379" != "https://10.0.10.1:2379"`),
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},
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{
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n: 3,
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a: []url.URL{{Scheme: "https", Host: "example.com:2379"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.10.1:2379"}},
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expect: false,
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err: errors.New(`resolved urls: "https://10.0.10.1:2379" != "http://10.0.10.1:2379"`),
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},
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{
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n: 4,
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a: []url.URL{{Scheme: "unix", Host: "abc:2379"}},
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b: []url.URL{{Scheme: "unix", Host: "abc:2379"}},
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expect: true,
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},
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{
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n: 5,
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a: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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b: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: true,
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},
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{
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n: 6,
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a: []url.URL{{Scheme: "http", Host: "example.com:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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b: []url.URL{{Scheme: "http", Host: "example.com:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: true,
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},
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{
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n: 7,
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a: []url.URL{{Scheme: "http", Host: "10.0.10.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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b: []url.URL{{Scheme: "http", Host: "example.com:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: true,
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},
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{
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n: 8,
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a: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}},
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b: []url.URL{{Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: false,
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err: errors.New(`resolved urls: "http://127.0.0.1:2379" != "http://127.0.0.1:2380"`),
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},
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{
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n: 9,
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a: []url.URL{{Scheme: "http", Host: "example.com:2380"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.10.1:2379"}},
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expect: false,
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err: errors.New(`resolved urls: "http://10.0.10.1:2380" != "http://10.0.10.1:2379"`),
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},
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{
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n: 10,
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a: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.0.1:2379"}},
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expect: false,
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err: errors.New(`resolved urls: "http://127.0.0.1:2379" != "http://10.0.0.1:2379"`),
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},
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{
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n: 11,
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a: []url.URL{{Scheme: "http", Host: "example.com:2379"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.0.1:2379"}},
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expect: false,
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err: errors.New(`resolved urls: "http://10.0.10.1:2379" != "http://10.0.0.1:2379"`),
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},
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{
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n: 12,
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a: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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b: []url.URL{{Scheme: "http", Host: "127.0.0.1:2380"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: false,
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err: errors.New(`resolved urls: "http://127.0.0.1:2379" != "http://127.0.0.1:2380"`),
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},
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{
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n: 13,
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a: []url.URL{{Scheme: "http", Host: "example.com:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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b: []url.URL{{Scheme: "http", Host: "127.0.0.1:2380"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: false,
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err: errors.New(`resolved urls: "http://10.0.10.1:2379" != "http://127.0.0.1:2380"`),
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},
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{
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n: 14,
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a: []url.URL{{Scheme: "http", Host: "127.0.0.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.0.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: false,
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err: errors.New(`resolved urls: "http://127.0.0.1:2379" != "http://10.0.0.1:2379"`),
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},
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{
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n: 15,
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a: []url.URL{{Scheme: "http", Host: "example.com:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.0.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: false,
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err: errors.New(`resolved urls: "http://10.0.10.1:2379" != "http://10.0.0.1:2379"`),
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},
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{
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n: 16,
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a: []url.URL{{Scheme: "http", Host: "10.0.0.1:2379"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.0.1:2379"}, {Scheme: "http", Host: "127.0.0.1:2380"}},
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expect: false,
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err: errors.New(`len(["http://10.0.0.1:2379"]) != len(["http://10.0.0.1:2379" "http://127.0.0.1:2380"])`),
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},
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{
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n: 17,
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a: []url.URL{{Scheme: "http", Host: "first.com:2379"}, {Scheme: "http", Host: "second.com:2380"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.11.1:2379"}, {Scheme: "http", Host: "10.0.11.2:2380"}},
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expect: true,
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},
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{
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n: 18,
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a: []url.URL{{Scheme: "http", Host: "second.com:2380"}, {Scheme: "http", Host: "first.com:2379"}},
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b: []url.URL{{Scheme: "http", Host: "10.0.11.1:2379"}, {Scheme: "http", Host: "10.0.11.2:2380"}},
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expect: true,
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},
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}
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for i, test := range tests {
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result, err := urlsEqual(context.TODO(), zaptest.NewLogger(t), test.a, test.b)
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if result != test.expect {
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t.Errorf("idx=%d #%d: a:%v b:%v, expected %v but %v", i, test.n, test.a, test.b, test.expect, result)
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}
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if test.err != nil {
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if err.Error() != test.err.Error() {
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t.Errorf("idx=%d #%d: err expected %v but %v", i, test.n, test.err, err)
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}
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}
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}
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}
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func TestURLStringsEqual(t *testing.T) {
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defer func() { resolveTCPAddr = resolveTCPAddrDefault }()
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errOnResolve := func(ctx context.Context, addr string) (*net.TCPAddr, error) {
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return nil, fmt.Errorf("unexpected attempt to resolve: %q", addr)
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}
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cases := []struct {
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urlsA []string
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urlsB []string
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resolver func(ctx context.Context, addr string) (*net.TCPAddr, error)
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}{
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{[]string{"http://127.0.0.1:8080"}, []string{"http://127.0.0.1:8080"}, resolveTCPAddrDefault},
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{[]string{
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"http://host1:8080",
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"http://host2:8080",
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}, []string{
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"http://host1:8080",
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"http://host2:8080",
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}, errOnResolve},
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{
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urlsA: []string{"https://[c262:266f:fa53:0ee6:966e:e3f0:d68f:b046]:2380"},
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urlsB: []string{"https://[c262:266f:fa53:ee6:966e:e3f0:d68f:b046]:2380"},
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resolver: resolveTCPAddrDefault,
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},
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}
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for idx, c := range cases {
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t.Logf("TestURLStringsEqual, case #%d", idx)
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resolveTCPAddr = c.resolver
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result, err := URLStringsEqual(context.TODO(), zaptest.NewLogger(t), c.urlsA, c.urlsB)
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if !result {
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t.Errorf("unexpected result %v", result)
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}
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if err != nil {
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t.Errorf("unexpected error %v", err)
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}
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}
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}
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