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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build windows
// +build windows
package exec_test
import (
"io"
"os"
"strconv"
"syscall"
"testing"
)
func TestPipePassing(t *testing.T) {
r, w, err := os.Pipe()
if err != nil {
t.Error(err)
}
const marker = "arrakis, dune, desert planet"
childProc := helperCommand(t, "pipehandle", strconv.FormatUint(uint64(w.Fd()), 16), marker)
childProc.SysProcAttr = &syscall.SysProcAttr{AdditionalInheritedHandles: []syscall.Handle{syscall.Handle(w.Fd())}}
err = childProc.Start()
if err != nil {
t.Error(err)
}
w.Close()
response, err := io.ReadAll(r)
if err != nil {
t.Error(err)
}
r.Close()
if string(response) != marker {
t.Errorf("got %q; want %q", string(response), marker)
}
err = childProc.Wait()
if err != nil {
t.Error(err)
}
}
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