package tentacle

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func TestDelegatedReaderParent(t *testing.T) {
	parent, err := delegated_parent("0::/user.slice/test.service/reader\n")
	if err != nil || parent != "/sys/fs/cgroup/user.slice/test.service" {
		t.Fatalf("%s %v", parent, err)
	}
	for _, path := range []string{"0::/", "0::/test.service", "0::/session.scope/reader", "0::/test.service/../reader", "1:cpu:/test.service/reader"} {
		if _, err := delegated_parent(path); err == nil {
			t.Fatalf("accepted %q", path)
		}
	}
}

func TestLocalLaunchListValidation(t *testing.T) {
	path := filepath.Join(t.TempDir(), "tentacles.json")
	for _, data := range []string{
		`[{"ID":"echo","Program":["/bin/true"]}]`,
		`[{"ID":"echo","Program":["relative"]}]`,
		`[{"ID":"echo","Program":["/bin/true"]},{"ID":"echo","Program":["/bin/true"]}]`,
		strings.Repeat(" ", MaxFrameBytes+1),
		`[{"ID":"echo","ID":"other","Program":["/bin/true"]}]`,
	} {
		if err := os.WriteFile(path, []byte(data), 0600); err != nil {
			t.Fatal(err)
		}
		specs, err := LoadLocalSpecs(path)
		valid := data == `[{"ID":"echo","Program":["/bin/true"]}]`
		if (err == nil) != valid {
			t.Fatalf("validation: %v", err)
		}
		if valid && len(specs) != 1 {
			t.Fatal(specs)
		}
	}
}