@Test
    public void testOneIndirectClientNoIndirectClientInURL() {
        final IndirectClient facebook = new MockIndirectClient("Facebook");
        val clients = new Clients(CALLBACK_URL, facebook);
        ClientFinder finder = new DefaultCallbackClientFinder();
        val result = finder.find(clients, MockWebContext.create(), null);
        assertEquals(1, result.size());
        assertEquals(facebook, result.get(0));
    }
Tests {@link DefaultCallbackClientFinder}.

@author Jerome Leleu
@since 3.0.0
pac4j-core/src/test/java/org/pac4j/core/client/finder/DefaultCallbackClientFinderTests.java