When you have the SAML SSO authentication configured, you can test it as described below.
Use a web browser to open the RAS Web Client (or use a platform-specific Parallels Client), specifying the Theme to which you assigned the identity provider.
Start a published application. Check that the application session was started successfully.
Create one more Theme, add one more IdP providers and then connect specifying the new Theme. Launch another application.
Use the web browser to connect to the identity provider portal.
Start a published application. Check that the application session was started successfully.