@Test
    public void testInitLoginUrl() {
        val configuration = new CasConfiguration();
        configuration.setPrefixUrl(PREFIX_URL);
        val casClient = new CasClient(configuration);
        casClient.setCallbackUrl(CALLBACK_URL);
        assertEquals(null, configuration.getLoginUrl());
        configuration.init();
        assertEquals(LOGIN_URL, configuration.getLoginUrl());
    }
This class tests the {@link CasClient} class.

@author Jerome Leleu
@since 1.4.0
pac4j-cas/src/test/java/org/pac4j/cas/client/CasClientTests.java