//go:build linux && rootrunner

package host

import (
	"os"
	"os/exec"
	"path/filepath"
	"syscall"
	"testing"
)

func TestPlan14GenerationRelocationUIDRootRunner(t *testing.T) {
	dir := generationRootRunnerDir(t)
	binary, err := os.Executable()
	if err != nil {
		t.Fatal(err)
	}
	raw, err := os.ReadFile(binary)
	if err != nil {
		t.Fatal(err)
	}
	installed := filepath.Join(dir, "runner.test")
	if err := os.WriteFile(installed, raw, 0755); err != nil {
		t.Fatal(err)
	}
	scratch := filepath.Join(dir, "service")
	if err := os.Mkdir(scratch, 0700); err != nil {
		t.Fatal(err)
	}
	if err := os.Chown(scratch, 65534, 65534); err != nil {
		t.Fatal(err)
	}
	cmd := exec.CommandContext(t.Context(), installed, "-test.run=^TestPlan14GenerationRelocationUIDPayload$", "-test.v", "-test.timeout=1m")
	cmd.Dir = scratch
	cmd.Env = []string{"PATH=/usr/bin:/bin", "HOME=" + scratch, "TMPDIR=" + scratch, "PLAN14_E41_UID=1"}
	cmd.SysProcAttr = &syscall.SysProcAttr{Credential: &syscall.Credential{Uid: 65534, Gid: 65534, Groups: []uint32{}}}
	if out, err := cmd.CombinedOutput(); err != nil {
		t.Fatalf("service UID relocation: %v\n%s", err, out)
	} else {
		t.Log(string(out))
	}
}

func TestPlan14GenerationRelocationUIDPayload(t *testing.T) {
	if os.Getenv("PLAN14_E41_UID") != "1" || os.Geteuid() != 65534 {
		t.Fatal("invoke through TestPlan14GenerationRelocationUIDRootRunner")
	}
	TestPlan14GenerationRelocationDefaultMaterializer(t)
}