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http_test.go
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http_test.go
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package copper
import (
"fmt"
"io"
"net"
"net/http"
"testing"
)
func addHTTPListener(t *testing.T, server Server, address string) string {
listener, err := net.Listen("tcp", address)
if err != nil {
t.Fatalf("Failed to listen: %s", err)
}
err = server.AddHTTPListener(listener)
if err != nil {
t.Fatalf("Failed to add listener: %s", err)
}
return listener.Addr().String()
}
func readResponseBody(t *testing.T, res *http.Response) string {
var buf [65536]byte
n, err := io.ReadFull(res.Body, buf[:])
if err != nil && err != io.EOF && err != io.ErrUnexpectedEOF {
t.Fatalf("failed to read response: %s", err)
}
return string(buf[:n])
}
func TestHTTP(t *testing.T) {
server, addr := runServer("localhost:0")
defer server.Close()
httpaddr := addHTTPListener(t, server, "localhost:0")
makeRequest := func(path string) (int, string) {
t.Logf("makeRequest(%q)", path)
res, err := http.Get("http://" + httpaddr + path)
if err != nil {
t.Fatalf("Get(%q): %s", path, err)
}
defer res.Body.Close()
body := readResponseBody(t, res)
return res.StatusCode, body
}
makeServiceRequest := func(service, path string) (int, string) {
t.Logf("makeServiceRequest(%q, %q)", service, path)
req, err := http.NewRequest("GET", "http://"+httpaddr+path, nil)
if err != nil {
t.Fatalf("NewRequest(%q, %q): %s", service, path, err)
}
req.Header.Add("X-Copper-Service", service)
res, err := http.DefaultClient.Do(req)
if err != nil {
t.Fatalf("Get(%q, %q): %s", service, path, err)
}
defer res.Body.Close()
body := readResponseBody(t, res)
return res.StatusCode, body
}
client := connectClient(addr)
defer client.Close()
pub1, err := client.Publish(
"http:hello",
PublishSettings{
MaxDistance: 3,
Concurrency: 1,
QueueSize: 64,
},
HTTPHandler(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
rw.WriteHeader(200)
fmt.Fprintf(rw, "pub1: %s", req.URL.Path)
})),
)
if err != nil {
t.Fatalf("Publish(1): %s", err)
}
defer pub1.Stop()
pub2, err := client.Publish(
"http:world",
PublishSettings{
Concurrency: 1,
QueueSize: 64,
},
HTTPHandler(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
rw.WriteHeader(200)
fmt.Fprintf(rw, "pub2: %s", req.URL.Path)
})),
)
if err != nil {
t.Fatalf("Publish(2): %s", err)
}
defer pub2.Stop()
status, body := makeRequest("/hello/whatever")
if status != 200 || body != "pub1: /whatever" {
t.Fatalf("Case 1: %d: %s", status, body)
}
status, body = makeRequest("/world/foo/bar/baz")
if status != 200 || body != "pub2: /foo/bar/baz" {
t.Fatalf("Case 2: %d: %s", status, body)
}
status, body = makeRequest("/foo/bar/baz")
if status != 404 {
t.Fatalf("Case 3: %d: %s", status, body)
}
status, body = makeServiceRequest("hello", "/foo/bar/baz")
if status != 200 || body != "pub1: /foo/bar/baz" {
t.Fatalf("Case 4: %d: %s", status, body)
}
status, body = makeServiceRequest("foobar", "/hello/whatever")
if status != 404 {
t.Fatalf("Case 5: %d: %s", status, body)
}
}