params.lstatCheck(t, path, lsfi2)

	if !os.SameFile(lsfi, lsfi2) {
		t.Errorf("lstat of %q file in %q directory and %q should be the same", lsfi2.Name(), parentdir, path)
	}
}

// testIsDir verifies that fi refers to directory.
func testIsDir(t *testing.T, path string, fi fs.FileInfo) {
	t.Helper()
	if !fi.IsDir() {
		t.Errorf("%q should be a directory", path)
	}
	if fi.Mode()&fs.ModeSymlink != 0 {

		t.Fatal("parsing overlay JSON:", err)
	}

	if err := initFromJSON(overlayJSON); err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() { overlay = nil })
}

func TestIsDir(t *testing.T) {
	initOverlay(t, `
{
	"Replace": {
		"subdir2/file2.txt":  "overlayfiles/subdir2_file2.txt",
		"subdir4":            "overlayfiles/subdir4",
		"subdir3/file3b.txt": "overlayfiles/subdir3_file3b.txt",

		} else if got != test.want {
			t.Errorf("toNorm(%s) returns %s, but %s expected\n", test.arg, got, test.want)
		}
	}

	testPath := `{{tmp}}\test\foo\bar`

	testsDir := []struct {
		wd   string
		arg  string
		want string
	}{
		// test absolute paths
		{".", `{{tmp}}\test\foo\bar`, `{{tmp}}\test\foo\bar`},
		{".", `{{tmp}}\.\test/foo\bar`, `{{tmp}}\test\foo\bar`},