blob: ecd41e8fd4aff6b18d48186ceca3f17053321d19 (
plain)
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
|
package net
// Regression: a fatal transport failure (a listener that cannot bind, an
// Accept loop that dies outside shutdown) must unblock ListenAndServe with
// the error — a server must never sit running with no way in — and a
// failure followed by Shutdown must not panic on a double close of done.
import (
"fmt"
"net"
"net/http"
"testing"
"time"
)
func TestTransportFailureStopsListenAndServe(t *testing.T) {
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer ln.Close()
port := fmt.Sprintf("127.0.0.1:%d", ln.Addr().(*net.TCPAddr).Port)
s := &Server{hub: NewHub(), done: make(chan struct{})}
s.httpServer = &http.Server{Addr: port, Handler: http.NewServeMux()}
result := make(chan error, 1)
go func() {
go s.serveHTTP()
<-s.done
result <- s.listenErr
}()
select {
case err := <-result:
if err == nil {
t.Fatal("transport failure unblocked ListenAndServe without an error")
}
// Shutdown after a failure must not double-close done.
s.Shutdown()
case <-time.After(2 * time.Second):
t.Fatal("a failed listener left the server running")
}
}
|
