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// Copyright 2023 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
package os_test
import (
"internal/testenv"
"io"
. "os"
"path/filepath"
"sync"
"testing"
)
func TestRemoveAllWithExecutedProcess(t *testing.T) {
// Regression test for golang.org/issue/25965.
if testing.Short() {
t.Skip("slow test; skipping")
}
testenv.MustHaveExec(t)
name, err := Executable()
if err != nil {
t.Fatal(err)
}
r, err := Open(name)
if err != nil {
t.Fatal(err)
}
defer r.Close()
const n = 100
var execs [n]string
// First create n executables.
for i := 0; i < n; i++ {
// Rewind r.
if _, err := r.Seek(0, io.SeekStart); err != nil {
t.Fatal(err)
}
name := filepath.Join(t.TempDir(), "test.exe")
execs[i] = name
w, err := Create(name)
if err != nil {
t.Fatal(err)
}
if _, err = io.Copy(w, r); err != nil {
w.Close()
t.Fatal(err)
}
if err := w.Sync(); err != nil {
w.Close()
t.Fatal(err)
}
if err = w.Close(); err != nil {
t.Fatal(err)
}
}
// Then run each executable and remove its directory.
// Run each executable in a separate goroutine to add some load
// and increase the chance of triggering the bug.
var wg sync.WaitGroup
wg.Add(n)
for i := 0; i < n; i++ {
go func(i int) {
defer wg.Done()
name := execs[i]
dir := filepath.Dir(name)
// Run test.exe without executing any test, just to make it do something.
cmd := testenv.Command(t, name, "-test.run=^$")
if err := cmd.Run(); err != nil {
t.Errorf("exec failed: %v", err)
}
// Remove dir and check that it doesn't return `ERROR_ACCESS_DENIED`.
err = RemoveAll(dir)
if err != nil {
t.Errorf("RemoveAll failed: %v", err)
}
}(i)
}
wg.Wait()
}
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