@Test
    void verifyGet() {
        val request = new MockHttpServletRequest();
        val response = new MockHttpServletResponse();
        val mv = callbackAuthorizeController.handleGetRequest(request, response);
        assertTrue(mv.getModel().containsKey("prefix"));
        assertFalse(mv.getModel().containsKey("error"));
        assertEquals(OAuth20Constants.DEVICE_CODE_APPROVAL_VIEW, mv.getViewName());
    }
This is {@link OAuth20DeviceUserCodeApprovalEndpointControllerTests}.

@author Misagh Moayyed
@since 6.3.0
support/cas-server-support-oauth/src/test/java/org/apereo/cas/support/oauth/web/endpoints/OAuth20DeviceUserCodeApprovalEndpointControllerTests.java