forked from uber/zanzibar
/
test_http_backend.go
121 lines (104 loc) · 3.29 KB
/
test_http_backend.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
// Copyright (c) 2021 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package testbackend
import (
"net/http"
"strconv"
"sync"
zanzibar "github.com/uber/zanzibar/runtime"
zrouter "github.com/uber/zanzibar/runtime/router"
"go.uber.org/zap"
)
// TestHTTPBackend will pretend to be a http backend
type TestHTTPBackend struct {
Server *zanzibar.HTTPServer
IP string
Port int32
RealPort int32
RealAddr string
WaitGroup *sync.WaitGroup
router *zrouter.Router
}
// BuildHTTPBackends returns a map of backends based on config
func BuildHTTPBackends(
cfg map[string]interface{}, knownHTTPBackends []string,
) (map[string]*TestHTTPBackend, error) {
n := len(knownHTTPBackends)
result := make(map[string]*TestHTTPBackend, n)
for i := 0; i < n; i++ {
backend := CreateHTTPBackend(0)
err := backend.Bootstrap()
if err != nil {
return nil, err
}
fieldName := knownHTTPBackends[i]
result[fieldName] = backend
cfg["clients."+fieldName+".ip"] = "127.0.0.1"
cfg["clients."+fieldName+".port"] = int64(backend.RealPort)
}
return result, nil
}
// Bootstrap creates a backend for testing
func (backend *TestHTTPBackend) Bootstrap() error {
_, err := backend.Server.JustListen()
if err != nil {
return err
}
backend.RealPort = backend.Server.RealPort
backend.RealAddr = backend.Server.RealAddr
backend.WaitGroup.Add(1)
go backend.Server.JustServe(backend.WaitGroup)
return nil
}
// HandleFunc registers funcs
func (backend *TestHTTPBackend) HandleFunc(
method string, path string, handler http.HandlerFunc,
) {
_ = backend.router.Handle(method, path, handler)
}
// Close ...
func (backend *TestHTTPBackend) Close() {
backend.Server.Close()
backend.WaitGroup.Wait()
}
// Wait ...
func (backend *TestHTTPBackend) Wait() {
backend.WaitGroup.Wait()
}
// CreateHTTPBackend creates a HTTP backend for testing
func CreateHTTPBackend(port int32) *TestHTTPBackend {
backend := &TestHTTPBackend{
IP: "127.0.0.1",
Port: port,
WaitGroup: &sync.WaitGroup{},
router: &zrouter.Router{
HandleMethodNotAllowed: true,
},
}
testLogger := zap.NewNop()
backend.Server = &zanzibar.HTTPServer{
Server: &http.Server{
Addr: backend.IP + ":" + strconv.Itoa(int(port)),
Handler: backend.router,
},
Logger: testLogger,
}
return backend
}