policies := make(map[string]MappedPolicy, m.Size())
	m.Range(func(k string, v MappedPolicy) bool {
		policies[k] = v
		return true
	})
	return policies
}

// converts a mapped policy into a slice of distinct policies
func (mp MappedPolicy) toSlice() []string {
	var policies []string
	for _, policy := range strings.Split(mp.Policies, ",") {
		if strings.TrimSpace(policy) == "" {
			continue

	if err != nil {
		return err
	}

	// Clear and repopulate
	for k := range foundDirs {
		delete(foundDirs, k)
	}

	// Populate into map
	for _, k := range dirs {
		foundDirs[k] = struct{}{}
	}

	// Delete all directories we expect to be there.
	for _, dir := range wantDirs {
		delete(foundDirs, dir)
	}

	// Nothing to delete
	if len(foundDirs) == 0 {

	testBuckets := []string{
		// This bucket is used for testing ListObject operations.
		"test-bucket-folders",
		// This bucket has file delete marker.
		"test-bucket-files",
	}
	for _, bucket := range testBuckets {
		err := obj.MakeBucket(context.Background(), bucket, MakeBucketOptions{
			VersioningEnabled: true,
		})
		if err != nil {
			t.Fatalf("%s : %s", instanceType, err.Error())
		}
	}

	var err error