for _, tag := range tags {
		tagContents = append(tagContents, tag.Value)
	}
	sort.Strings(tagContents)
	sort.Strings(contents)
	return reflect.DeepEqual(tagContents, contents)
}

func TestManyToManyWithMultiPrimaryKeys(t *testing.T) {
	if name := DB.Dialector.Name(); name == "sqlite" || name == "sqlserver" {
		t.Skip("skip sqlite, sqlserver due to it doesn't support multiple primary keys with auto increment")
	}