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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package delivery_test
import (
"bytes"
"fmt"
"io"
"math/rand"
"net"
"net/http"
"strconv"
"strings"
"testing"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/httpclient"
"github.com/superseriousbusiness/gotosocial/internal/queue"
"github.com/superseriousbusiness/gotosocial/internal/transport/delivery"
)
func TestDeliveryWorkerPool(t *testing.T) {
for _, i := range []int{1, 2, 4, 8, 16, 32} {
t.Run("size="+strconv.Itoa(i), func(t *testing.T) {
testDeliveryWorkerPool(t, i, generateInput(100*i))
})
}
}
func testDeliveryWorkerPool(t *testing.T, sz int, input []*testrequest) {
wp := new(delivery.WorkerPool)
wp.Init(httpclient.New(httpclient.Config{
AllowRanges: config.MustParseIPPrefixes([]string{
"127.0.0.0/8",
}),
}))
wp.Start(sz)
defer wp.Stop()
test(t, &wp.Queue, input)
}
func test(
t *testing.T,
queue *queue.StructQueue[*delivery.Delivery],
input []*testrequest,
) {
expect := make(chan *testrequest)
errors := make(chan error)
// Prepare an HTTP test handler that ensures expected delivery is received.
handler := http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
errors <- (<-expect).Equal(r)
})
// Start new HTTP test server listener.
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer l.Close()
// Start the HTTP server.
//
// specifically not using httptest.Server{} here as httptest
// links that server with its own http.Client{}, whereas we're
// using an httpclient.Client{} (well, delivery routine is).
srv := new(http.Server)
srv.Addr = "http://" + l.Addr().String()
srv.Handler = handler
go srv.Serve(l)
defer srv.Close()
// Range over test input.
for _, test := range input {
// Generate req for input.
req := test.Generate(srv.Addr)
r := httpclient.WrapRequest(req)
// Wrap the request in delivery.
dlv := new(delivery.Delivery)
dlv.Request = r
// Enqueue delivery!
queue.Push(dlv)
expect <- test
// Wait for errors from handler.
if err := <-errors; err != nil {
t.Error(err)
}
}
}
type testrequest struct {
method string
uri string
body []byte
}
// generateInput generates 'n' many testrequest cases.
func generateInput(n int) []*testrequest {
tests := make([]*testrequest, n)
for i := range tests {
tests[i] = new(testrequest)
tests[i].method = randomMethod()
tests[i].uri = randomURI()
tests[i].body = randomBody(tests[i].method)
}
return tests
}
var methods = []string{
http.MethodConnect,
http.MethodDelete,
http.MethodGet,
http.MethodHead,
http.MethodOptions,
http.MethodPatch,
http.MethodPost,
http.MethodPut,
http.MethodTrace,
}
// randomMethod generates a random http method.
func randomMethod() string {
return methods[rand.Intn(len(methods))]
}
// randomURI generates a random http uri.
func randomURI() string {
n := rand.Intn(5)
p := make([]string, n)
for i := range p {
p[i] = strconv.Itoa(rand.Int())
}
return "/" + strings.Join(p, "/")
}
// randomBody generates a random http body DEPENDING on method.
func randomBody(method string) []byte {
if requiresBody(method) {
return []byte(method + " " + randomURI())
}
return nil
}
// requiresBody returns whether method requires body.
func requiresBody(method string) bool {
switch method {
case http.MethodPatch,
http.MethodPost,
http.MethodPut:
return true
default:
return false
}
}
// Generate will generate a real http.Request{} from test data.
func (t *testrequest) Generate(addr string) *http.Request {
var body io.ReadCloser
if t.body != nil {
var b bytes.Reader
b.Reset(t.body)
body = io.NopCloser(&b)
}
req, err := http.NewRequest(t.method, addr+t.uri, body)
if err != nil {
panic(err)
}
return req
}
// Equal checks if request matches receiving test request.
func (t *testrequest) Equal(r *http.Request) error {
// Ensure methods match.
if t.method != r.Method {
return fmt.Errorf("differing request methods: t=%q r=%q", t.method, r.Method)
}
// Ensure request URIs match.
if t.uri != r.URL.RequestURI() {
return fmt.Errorf("differing request urls: t=%q r=%q", t.uri, r.URL.RequestURI())
}
// Ensure body cases match.
if requiresBody(t.method) {
// Read request into memory.
b, err := io.ReadAll(r.Body)
if err != nil {
return fmt.Errorf("error reading request body: %v", err)
}
// Compare the request bodies.
st := strings.TrimSpace(string(t.body))
sr := strings.TrimSpace(string(b))
if st != sr {
return fmt.Errorf("differing request bodies: t=%q r=%q", st, sr)
}
}
return nil
}
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