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package bridge_test
import (
"fmt"
"github.com/stretchr/testify/assert"
"github.com/viant/toolbox/bridge"
"io/ioutil"
"log"
"net"
"net/http"
"net/url"
"strings"
"testing"
"time"
)
func startTargetProxyTestEndpoint(port string, responses map[string]string) error {
mux := http.NewServeMux()
listener, err := net.Listen("tcp", ":"+port)
if err != nil {
return err
}
mux.HandleFunc("/", func(response http.ResponseWriter, request *http.Request) {
if strings.ToUpper(request.Method) == "POST" {
response.WriteHeader(http.StatusOK)
data, err := ioutil.ReadAll(request.Body)
if err != nil {
log.Fatal(err)
}
response.Write(data)
return
}
if body, ok := responses[request.URL.Path]; ok {
response.WriteHeader(http.StatusOK)
response.Write([]byte(body))
} else {
response.WriteHeader(http.StatusNotFound)
}
})
go http.Serve(listener, mux)
return nil
}
func startTestHttpBridge(port string, factory bridge.HttpBridgeProxyHandlerFactory, routes ...*bridge.HttpBridgeProxyRoute) (map[string]http.Handler, error) {
config := &bridge.HttpBridgeConfig{
Endpoint: &bridge.HttpBridgeEndpointConfig{
Port: port,
},
Proxy: &bridge.HttpBridgeProxyConfig{
BufferPoolSize: 2,
BufferSize: 8 * 1024,
},
Routes: routes,
}
httpBridge, err := bridge.NewHttpBridge(config, factory)
if err != nil {
return nil, err
}
go httpBridge.ListenAndServe()
return httpBridge.Handlers, nil
}
func TestNewHttpBridge(t *testing.T) {
for i := 0; i < 2; i++ {
responses := make(map[string]string)
responses[fmt.Sprintf("/test%v", i+1)] = fmt.Sprintf("Response1 from %v", 8088+i)
err := startTargetProxyTestEndpoint(fmt.Sprintf("%v", 8088+i), responses)
assert.Nil(t, err)
}
routes := make([]*bridge.HttpBridgeProxyRoute, 0)
for i := 0; i < 2; i++ {
targetURL, err := url.Parse(fmt.Sprintf("http://127.0.0.1:%v/test%v", 8088+i, i+1))
assert.Nil(t, err)
if err != nil {
log.Fatal(err)
}
route := &bridge.HttpBridgeProxyRoute{
Pattern: fmt.Sprintf("/test%v", i+1),
TargetURL: targetURL,
}
routes = append(routes, route)
}
startTestHttpBridge("8085", bridge.NewProxyHandler, routes...)
time.Sleep(1 * time.Second)
//Test direct responses
for i := 0; i < 2; i++ {
response, err := http.Get(fmt.Sprintf("http://127.0.0.1:%v/test%v", 8088+i, i+1))
assert.Nil(t, err)
content, err := ioutil.ReadAll(response.Body)
assert.Nil(t, err)
assert.Equal(t, fmt.Sprintf("Response1 from %v", 8088+i), string(content))
}
//Test proxy responses
for i := 0; i < 2; i++ {
response, err := http.Get(fmt.Sprintf("http://127.0.0.1:8085/test%v", i+1))
assert.Nil(t, err)
content, err := ioutil.ReadAll(response.Body)
assert.Nil(t, err)
assert.Equal(t, fmt.Sprintf("Response1 from %v", 8088+i), string(content))
}
}
func TestNewHttpBridgeWithListeningHandler(t *testing.T) {
basePort := 9098
for i := 0; i < 2; i++ {
responses := make(map[string]string)
responses[fmt.Sprintf("/test%v", i+1)] = fmt.Sprintf("Response1 from %v", basePort+i)
err := startTargetProxyTestEndpoint(fmt.Sprintf("%v", basePort+i), responses)
assert.Nil(t, err)
}
var responses = make([]*http.Response, 0)
var listener = func(request *http.Request, response *http.Response) {
responses = append(responses, response)
}
routes := make([]*bridge.HttpBridgeProxyRoute, 0)
for i := 0; i < 2; i++ {
targetURL, err := url.Parse(fmt.Sprintf("http://127.0.0.1:%v/test%v", basePort+i, i+1))
assert.Nil(t, err)
if err != nil {
log.Fatal(err)
}
route := &bridge.HttpBridgeProxyRoute{
Pattern: fmt.Sprintf("/test%v", i+1),
TargetURL: targetURL,
Listener: listener,
}
routes = append(routes, route)
}
_, err := startTestHttpBridge("9085", bridge.NewProxyRecordingHandler, routes...)
assert.Nil(t, err)
time.Sleep(1 * time.Second)
//Test direct responses
for i := 0; i < 2; i++ {
response, err := http.Get(fmt.Sprintf("http://127.0.0.1:%v/test%v", basePort+i, i+1))
assert.Nil(t, err)
content, err := ioutil.ReadAll(response.Body)
assert.Nil(t, err)
assert.Equal(t, fmt.Sprintf("Response1 from %v", basePort+i), string(content))
}
//Test proxy responses
for i := 0; i < 2; i++ {
response, err := http.Get(fmt.Sprintf("http://127.0.0.1:9085/test%v", i+1))
assert.Nil(t, err)
content, err := ioutil.ReadAll(response.Body)
assert.Nil(t, err)
assert.Equal(t, fmt.Sprintf("Response1 from %v", basePort+i), string(content))
}
{
i := 0
response, err := http.Post(fmt.Sprintf("http://127.0.0.1:9085/test%v", i+1), "text/json", strings.NewReader("{\"a\":1}"))
assert.Nil(t, err)
content, err := ioutil.ReadAll(response.Body)
assert.Nil(t, err)
assert.Equal(t, "{\"a\":1}", string(content))
}
{
assert.Equal(t, 3, len(responses))
time.Sleep(1 * time.Second)
request := responses[0].Request
assert.Equal(t, "/test1", request.URL.Path)
response := responses[0]
content, err := ioutil.ReadAll(response.Body)
assert.Nil(t, err)
assert.Equal(t, "Response1 from 9098", string(content))
response = responses[2]
content, err = ioutil.ReadAll(response.Body)
assert.Nil(t, err)
assert.Equal(t, "{\"a\":1}", string(content))
}
}
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