tailscale/net/netutil/netutil_test.go

55 lines
976 B
Go

// Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package netutil
import (
"io"
"net"
"testing"
)
type conn struct {
net.Conn
}
func TestOneConnListener(t *testing.T) {
c1 := new(conn)
a1 := dummyAddr("a1")
// Two Accepts
ln := NewOneConnListener(c1, a1)
if got := ln.Addr(); got != a1 {
t.Errorf("Addr = %#v; want %#v", got, a1)
}
c, err := ln.Accept()
if err != nil {
t.Fatal(err)
}
if c != c1 {
t.Fatalf("didn't get c1; got %p", c)
}
c, err = ln.Accept()
if err != io.EOF {
t.Errorf("got %v; want EOF", err)
}
if c != nil {
t.Errorf("unexpected non-nil Conn")
}
// Close before Accept
ln = NewOneConnListener(c1, a1)
ln.Close()
_, err = ln.Accept()
if err != io.EOF {
t.Fatalf("got %v; want EOF", err)
}
// Implicit addr
ln = NewOneConnListener(c1, nil)
if ln.Addr() == nil {
t.Errorf("nil Addr")
}
}