private MockIndirectClient newFacebookClient() {
        return new MockIndirectClient("FacebookClient", new FoundAction(LOGIN_URL), Optional.empty(), new CommonProfile());
    }
This class tests the {@link Clients} class.

@author Jerome Leleu
@since 1.3.0
pac4j-core/src/test/java/org/pac4j/core/client/ClientsTests.java