LdapManager ldapManager = new LdapManager();
        ldapManager.init();

        // Backslash should be escaped to \5c
        assertEquals("\\5c", ldapManager.escapeLDAPSearchFilter("\\"));
        assertEquals("test\\5cvalue", ldapManager.escapeLDAPSearchFilter("test\\value"));
        assertEquals("\\5c\\5c", ldapManager.escapeLDAPSearchFilter("\\\\"));
    }

    @Test