//go:build linux

package host

import (
	"errors"
	"github.com/carlosframework/platform/internal/provision"
	"os"
	"path/filepath"
	"strconv"
	"syscall"
	"testing"
)

func TestPlan11Fix1NoProcessDerivesCoverage(t *testing.T) {
	for _, name := range []string{"db", "wal", "shm", "journal", "container"} {
		t.Run(name, func(t *testing.T) {
			fx := newWritersKernelFixture(t)
			fx.dropAgentHolds(t)
			db := provision.NestedDBPath(fx.dataRoot, fx.target.Host)
			path := db
			switch name {
			case "wal":
				path += "-wal"
			case "shm":
				path += "-shm"
			case "journal":
				path += "-journal"
			case "container":
				path = filepath.Join(filepath.Dir(db), "nested", "state")
			}
			if err := os.MkdirAll(filepath.Dir(path), 0700); err != nil {
				t.Fatal(err)
			}
			f, err := os.Create(path)
			if err != nil {
				t.Fatal(err)
			}
			defer f.Close()
			pid := strconv.Itoa(os.Getpid())
			if err := os.Symlink(filepath.Join("/proc", pid), filepath.Join(fx.proc, pid)); err != nil {
				t.Fatal(err)
			}
			rel, err := filepath.Rel(fx.dataRoot, filepath.Join(filepath.Dir(db), "nonexistent"))
			if err != nil {
				t.Fatal(err)
			}
			fx.inv.Entries = []StopInventoryEntry{{Kind: "path", ManagedRoot: "data", RelativePath: rel, Type: syscall.S_IFDIR, Materialization: "intended"}}
			if _, err := fx.noProcess(t, false); !errors.Is(err, ErrClaimStopIdentity) {
				t.Fatalf("inventory omitted real %s holder: %v", name, err)
			}
		})
	}
}