Files
ThothII/tools/thothctl/internal/compose/process_windows_test.go
T

104 lines
3.0 KiB
Go

//go:build windows
package compose
import (
"context"
"errors"
"os"
"os/exec"
"path/filepath"
"testing"
"time"
"golang.org/x/sys/windows"
)
func TestOwnedProcessUsesCreationTimeJobAttribute(t *testing.T) {
if procThreadAttributeJobList == 0 {
t.Fatal("owned Windows process must carry a creation-time job-list attribute")
}
cmd := exec.Command("cmd.exe")
configureOwnedProcess(cmd)
if cmd.SysProcAttr != nil && cmd.SysProcAttr.CreationFlags&windows.CREATE_SUSPENDED != 0 {
t.Fatal("owned Windows process must not rely on a post-start assignment race")
}
}
func TestOwnedJobPolicyKillsDescendantsOnClose(t *testing.T) {
if windows.JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE == 0 {
t.Fatal("owned job must use kill-on-close policy")
}
}
// TestWindowsProcessHelper is both a test helper and the child process used by the runtime
// ownership regression below. The child writes a marker only if it outlives its parent job.
func TestWindowsProcessHelper(t *testing.T) {
mode := os.Getenv("THOTHCTL_WINDOWS_HELPER")
if mode == "" {
return
}
marker := os.Getenv("THOTHCTL_WINDOWS_MARKER")
if mode == "child" {
time.Sleep(2 * time.Second)
_ = os.WriteFile(marker, []byte("survived"), 0o600)
return
}
child := exec.Command(os.Args[0], "-test.run=TestWindowsProcessHelper", "--")
child.Env = append(os.Environ(), "THOTHCTL_WINDOWS_HELPER=child", "THOTHCTL_WINDOWS_MARKER="+marker)
if err := child.Start(); err != nil {
t.Fatal(err)
}
if mode == "exit" {
return
}
if mode == "cancel" {
for {
time.Sleep(time.Second)
}
}
for {
_, _ = os.Stdout.Write([]byte("overflow\n"))
time.Sleep(time.Millisecond)
}
}
func TestOwnedProcessTerminatesDescendantOnOverflowCancelAndParentExit(t *testing.T) {
for _, mode := range []string{"overflow", "cancel", "exit"} {
t.Run(mode, func(t *testing.T) {
marker := filepath.Join(t.TempDir(), "descendant-marker")
t.Setenv("THOTHCTL_WINDOWS_HELPER", mode)
t.Setenv("THOTHCTL_WINDOWS_MARKER", marker)
ctx := context.Background()
var cancel context.CancelFunc
if mode == "cancel" {
ctx, cancel = context.WithCancel(ctx)
}
result := make(chan error, 1)
go func() {
_, err := runBoundedWindows(ctx, os.Args[0], []string{"-test.run=TestWindowsProcessHelper", "--"}, nil, CaptureLimits{StdoutBytes: 1024, StderrBytes: 1024})
result <- err
}()
if mode == "cancel" {
time.Sleep(100 * time.Millisecond)
cancel()
}
select {
case err := <-result:
if mode == "overflow" && !errors.Is(err, ErrOutputLimit) {
t.Fatalf("overflow error = %v, want ErrOutputLimit", err)
}
if mode == "cancel" && !errors.Is(err, context.Canceled) {
t.Fatalf("cancel error = %v, want context.Canceled", err)
}
case <-time.After(5 * time.Second):
t.Fatal("owned process did not terminate")
}
time.Sleep(150 * time.Millisecond)
if _, err := os.Stat(marker); !errors.Is(err, os.ErrNotExist) {
t.Fatalf("descendant marker error = %v; descendant survived %s termination", err, mode)
}
})
}
}