Add test cases for security descriptors

internal/fs/sd_windows_test.go

@@ -0,0 +1,60 @@
+//go:build windows
+// +build windows
+
+package fs
+
+import (
+	"encoding/base64"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/restic/restic/internal/errors"
+	"github.com/restic/restic/internal/test"
+)
+
+func Test_SetGetFileSecurityDescriptors(t *testing.T) {
+	tempDir := t.TempDir()
+	testfilePath := filepath.Join(tempDir, "testfile.txt")
+	// create temp file
+	testfile, err := os.Create(testfilePath)
+	if err != nil {
+		t.Fatalf("failed to create temporary file: %s", err)
+	}
+	defer func() {
+		err := testfile.Close()
+		if err != nil {
+			t.Logf("Error closing file %s: %v\n", testfilePath, err)
+		}
+	}()
+
+	testSecurityDescriptors(t, TestFileSDs, testfilePath)
+}
+
+func Test_SetGetFolderSecurityDescriptors(t *testing.T) {
+	tempDir := t.TempDir()
+	testfolderPath := filepath.Join(tempDir, "testfolder")
+	// create temp folder
+	err := os.Mkdir(testfolderPath, os.ModeDir)
+	if err != nil {
+		t.Fatalf("failed to create temporary file: %s", err)
+	}
+
+	testSecurityDescriptors(t, TestDirSDs, testfolderPath)
+}
+
+func testSecurityDescriptors(t *testing.T, testSDs []string, testPath string) {
+	for _, testSD := range testSDs {
+		sdInputBytes, err := base64.StdEncoding.DecodeString(testSD)
+		test.OK(t, errors.Wrapf(err, "Error decoding SD: %s", testPath))
+
+		err = SetSecurityDescriptor(testPath, &sdInputBytes)
+		test.OK(t, errors.Wrapf(err, "Error setting file security descriptor for: %s", testPath))
+
+		var sdOutputBytes *[]byte
+		sdOutputBytes, err = GetSecurityDescriptor(testPath)
+		test.OK(t, errors.Wrapf(err, "Error getting file security descriptor for: %s", testPath))
+
+		CompareSecurityDescriptors(t, testPath, sdInputBytes, *sdOutputBytes)
+	}
+}