//go:build linux

package preflight

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

func TestRealDiskObservation(t *testing.T) {
	dir := t.TempDir()
	if diskAvailable(dir).State != "observed" {
		t.Fatal("existing filesystem not observed")
	}
	if diskAvailable(filepath.Join(dir, "missing")).State != "unknown" {
		t.Fatal("missing target reported capacity")
	}
}
func TestDanglingResourceLinkRequiresReview(t *testing.T) {
	dir := t.TempDir()
	if err := os.MkdirAll(filepath.Join(dir, "var/lib"), 0700); err != nil {
		t.Fatal(err)
	}
	if err := os.Symlink("missing", filepath.Join(dir, "var/lib/docker")); err != nil {
		t.Fatal(err)
	}
	if resourceState(os.DirFS(dir), "var/lib/docker") != "present" {
		t.Fatal("dangling link treated as absent")
	}
}