1// Copyright 2020 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package jsonrpc2
6
7import (
8	"context"
9	"net"
10	"sync"
11	"testing"
12	"time"
13
14	"golang.org/x/tools/internal/stack/stacktest"
15)
16
17func TestIdleTimeout(t *testing.T) {
18	stacktest.NoLeak(t)
19	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
20	defer cancel()
21
22	ln, err := net.Listen("tcp", "localhost:0")
23	if err != nil {
24		t.Fatal(err)
25	}
26	defer ln.Close()
27
28	connect := func() net.Conn {
29		conn, err := net.DialTimeout("tcp", ln.Addr().String(), 5*time.Second)
30		if err != nil {
31			panic(err)
32		}
33		return conn
34	}
35
36	server := HandlerServer(MethodNotFound)
37	// connTimer := &fakeTimer{c: make(chan time.Time, 1)}
38	var (
39		runErr error
40		wg     sync.WaitGroup
41	)
42	wg.Add(1)
43	go func() {
44		defer wg.Done()
45		runErr = Serve(ctx, ln, server, 100*time.Millisecond)
46	}()
47
48	// Exercise some connection/disconnection patterns, and then assert that when
49	// our timer fires, the server exits.
50	conn1 := connect()
51	conn2 := connect()
52	conn1.Close()
53	conn2.Close()
54	conn3 := connect()
55	conn3.Close()
56
57	wg.Wait()
58
59	if runErr != ErrIdleTimeout {
60		t.Errorf("run() returned error %v, want %v", runErr, ErrIdleTimeout)
61	}
62}
63