public Properties getProperties()
    {
        return properties;
    }
@Test
    public void testUriWithExtraCredentials()
            throws SQLException, UnsupportedEncodingException
    {
        String extraCredentials = "test.token.foo:bar;test.token.abc:xyz;test.scopes:read_only|read_write";
        String encodedExtraCredentials = URLEncoder.encode(extraCredentials, StandardCharsets.UTF_8.toString());
        PrestoDriverUri parameters = createDriverUri("presto://localhost:8080?extraCredentials=" + encodedExtraCredentials);
        Properties properties = parameters.getProperties();
        assertEquals(properties.getProperty(EXTRA_CREDENTIALS.getKey()), extraCredentials);
    }