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// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package safesocket
import (
"context"
"fmt"
"path/filepath"
"runtime"
"testing"
)
// downgradeSDDL is a no-op test helper on non-Windows systems.
var downgradeSDDL = func() func() { return func() {} }
func TestBasics(t *testing.T) {
// Make the socket in a temp dir rather than the cwd
// so that the test can be run from a mounted filesystem (#2367).
dir := t.TempDir()
var sock string
if runtime.GOOS != "windows" {
sock = filepath.Join(dir, "test")
} else {
sock = fmt.Sprintf(`\\.\pipe\tailscale-test`)
t.Cleanup(downgradeSDDL())
}
ln, err := Listen(sock)
if err != nil {
t.Fatal(err)
}
errs := make(chan error, 2)
go func() {
s, err := ln.Accept()
if err != nil {
errs <- err
return
}
ln.Close()
s.Write([]byte("hello"))
b := make([]byte, 1024)
n, err := s.Read(b)
if err != nil {
errs <- err
return
}
t.Logf("server read %d bytes.", n)
if string(b[:n]) != "world" {
errs <- fmt.Errorf("got %#v, expected %#v\n", string(b[:n]), "world")
return
}
s.Close()
errs <- nil
}()
go func() {
c, err := ConnectContext(context.Background(), sock)
if err != nil {
errs <- err
return
}
c.Write([]byte("world"))
b := make([]byte, 1024)
n, err := c.Read(b)
if err != nil {
errs <- err
return
}
if string(b[:n]) != "hello" {
errs <- fmt.Errorf("got %#v, expected %#v\n", string(b[:n]), "hello")
}
c.Close()
errs <- nil
}()
for range 2 {
if err := <-errs; err != nil {
t.Fatal(err)
}
}
}
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