Index: uspace/lib/display/test/display.c
===================================================================
--- uspace/lib/display/test/display.c	(revision c9927c664d54127a7f3eb509f6129ebca2f158f1)
+++ uspace/lib/display/test/display.c	(revision 11662bd0511dee7355e56a436cf2ea26fb2239ad)
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2021 Jiri Svoboda
+ * Copyright (c) 2022 Jiri Svoboda
  * All rights reserved.
  *
@@ -60,8 +60,11 @@
 static errno_t test_window_move(void *, sysarg_t, gfx_coord2_t *);
 static errno_t test_window_get_pos(void *, sysarg_t, gfx_coord2_t *);
+static errno_t test_window_get_max_rect(void *, sysarg_t, gfx_rect_t *);
 static errno_t test_window_resize_req(void *, sysarg_t, display_wnd_rsztype_t,
     gfx_coord2_t *);
 static errno_t test_window_resize(void *, sysarg_t, gfx_coord2_t *,
     gfx_rect_t *);
+static errno_t test_window_maximize(void *, sysarg_t);
+static errno_t test_window_unmaximize(void *, sysarg_t);
 static errno_t test_window_set_cursor(void *, sysarg_t, display_stock_cursor_t);
 static errno_t test_get_event(void *, sysarg_t *, display_wnd_ev_t *);
@@ -76,6 +79,9 @@
 	.window_move = test_window_move,
 	.window_get_pos = test_window_get_pos,
+	.window_get_max_rect = test_window_get_max_rect,
 	.window_resize_req = test_window_resize_req,
 	.window_resize = test_window_resize,
+	.window_maximize = test_window_maximize,
+	.window_unmaximize = test_window_unmaximize,
 	.window_set_cursor = test_window_set_cursor,
 	.get_event = test_get_event,
@@ -122,4 +128,8 @@
 	gfx_coord2_t get_pos_rpos;
 
+	bool window_get_max_rect_called;
+	sysarg_t get_max_rect_wnd_id;
+	gfx_rect_t get_max_rect_rrect;
+
 	bool window_resize_req_called;
 	sysarg_t resize_req_wnd_id;
@@ -131,4 +141,7 @@
 	gfx_rect_t resize_nbound;
 	sysarg_t resize_wnd_id;
+
+	bool window_maximize_called;
+	bool window_unmaximize_called;
 
 	bool window_set_cursor_called;
@@ -674,4 +687,126 @@
 }
 
+/** display_window_get_max_rect() with server returning error response works. */
+PCUT_TEST(window_get_max_rect_failure)
+{
+	errno_t rc;
+	service_id_t sid;
+	display_t *disp = NULL;
+	display_wnd_params_t params;
+	display_window_t *wnd;
+	gfx_rect_t rect;
+	test_response_t resp;
+
+	async_set_fallback_port_handler(test_display_conn, &resp);
+
+	// FIXME This causes this test to be non-reentrant!
+	rc = loc_server_register(test_display_server);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = loc_service_register(test_display_svc, &sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = display_open(test_display_svc, &disp);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(disp);
+
+	resp.rc = EOK;
+	display_wnd_params_init(&params);
+	params.rect.p0.x = 0;
+	params.rect.p0.y = 0;
+	params.rect.p0.x = 100;
+	params.rect.p0.y = 100;
+
+	rc = display_window_create(disp, &params, &test_display_wnd_cb,
+	    (void *) &resp, &wnd);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(wnd);
+
+	resp.rc = EIO;
+	resp.window_get_max_rect_called = false;
+
+	rect.p0.x = 0;
+	rect.p0.y = 0;
+	rect.p1.x = 0;
+	rect.p1.y = 0;
+
+	rc = display_window_get_max_rect(wnd, &rect);
+	PCUT_ASSERT_TRUE(resp.window_get_max_rect_called);
+	PCUT_ASSERT_ERRNO_VAL(resp.rc, rc);
+	PCUT_ASSERT_INT_EQUALS(wnd->id, resp.get_max_rect_wnd_id);
+	PCUT_ASSERT_INT_EQUALS(0, rect.p0.x);
+	PCUT_ASSERT_INT_EQUALS(0, rect.p0.y);
+	PCUT_ASSERT_INT_EQUALS(0, rect.p1.x);
+	PCUT_ASSERT_INT_EQUALS(0, rect.p1.y);
+
+	display_window_destroy(wnd);
+	display_close(disp);
+	rc = loc_service_unregister(sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+}
+
+/** display_window_get_max_rect() with server returning success response works. */
+PCUT_TEST(window_get_max_rect_success)
+{
+	errno_t rc;
+	service_id_t sid;
+	display_t *disp = NULL;
+	display_wnd_params_t params;
+	display_window_t *wnd;
+	gfx_rect_t rect;
+	test_response_t resp;
+
+	async_set_fallback_port_handler(test_display_conn, &resp);
+
+	// FIXME This causes this test to be non-reentrant!
+	rc = loc_server_register(test_display_server);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = loc_service_register(test_display_svc, &sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = display_open(test_display_svc, &disp);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(disp);
+
+	resp.rc = EOK;
+	display_wnd_params_init(&params);
+	params.rect.p0.x = 0;
+	params.rect.p0.y = 0;
+	params.rect.p0.x = 100;
+	params.rect.p0.y = 100;
+
+	rc = display_window_create(disp, &params, &test_display_wnd_cb,
+	    (void *) &resp, &wnd);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(wnd);
+
+	resp.rc = EOK;
+	resp.window_get_max_rect_called = false;
+	resp.get_max_rect_rrect.p0.x = 11;
+	resp.get_max_rect_rrect.p0.y = 12;
+	resp.get_max_rect_rrect.p1.x = 13;
+	resp.get_max_rect_rrect.p1.y = 14;
+
+	rect.p0.x = 0;
+	rect.p0.y = 0;
+	rect.p1.x = 0;
+	rect.p1.y = 0;
+
+	rc = display_window_get_max_rect(wnd, &rect);
+	PCUT_ASSERT_TRUE(resp.window_get_max_rect_called);
+	PCUT_ASSERT_ERRNO_VAL(resp.rc, rc);
+	PCUT_ASSERT_INT_EQUALS(wnd->id, resp.get_max_rect_wnd_id);
+	PCUT_ASSERT_INT_EQUALS(resp.get_max_rect_rrect.p0.x, rect.p0.x);
+	PCUT_ASSERT_INT_EQUALS(resp.get_max_rect_rrect.p0.y, rect.p0.y);
+	PCUT_ASSERT_INT_EQUALS(resp.get_max_rect_rrect.p1.x, rect.p1.x);
+	PCUT_ASSERT_INT_EQUALS(resp.get_max_rect_rrect.p1.y, rect.p1.y);
+
+	display_window_destroy(wnd);
+	display_close(disp);
+	rc = loc_service_unregister(sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+}
+
 /** display_window_resize_req() with server returning error response works. */
 PCUT_TEST(window_resize_req_failure)
@@ -908,4 +1043,100 @@
 	PCUT_ASSERT_INT_EQUALS(nrect.p1.x, resp.resize_nbound.p1.x);
 	PCUT_ASSERT_INT_EQUALS(nrect.p1.y, resp.resize_nbound.p1.y);
+
+	display_window_destroy(wnd);
+	display_close(disp);
+	rc = loc_service_unregister(sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+}
+
+/** display_window_maximize() with server returning error response works. */
+PCUT_TEST(window_maximize_failure)
+{
+	errno_t rc;
+	service_id_t sid;
+	display_t *disp = NULL;
+	display_wnd_params_t params;
+	display_window_t *wnd;
+	test_response_t resp;
+
+	async_set_fallback_port_handler(test_display_conn, &resp);
+
+	// FIXME This causes this test to be non-reentrant!
+	rc = loc_server_register(test_display_server);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = loc_service_register(test_display_svc, &sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = display_open(test_display_svc, &disp);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(disp);
+
+	resp.rc = EOK;
+	display_wnd_params_init(&params);
+	params.rect.p0.x = 0;
+	params.rect.p0.y = 0;
+	params.rect.p0.x = 100;
+	params.rect.p0.y = 100;
+
+	rc = display_window_create(disp, &params, &test_display_wnd_cb,
+	    (void *) &resp, &wnd);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(wnd);
+
+	resp.rc = EIO;
+	resp.window_maximize_called = false;
+
+	rc = display_window_maximize(wnd);
+	PCUT_ASSERT_TRUE(resp.window_maximize_called);
+	PCUT_ASSERT_ERRNO_VAL(resp.rc, rc);
+
+	display_window_destroy(wnd);
+	display_close(disp);
+	rc = loc_service_unregister(sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+}
+
+/** display_window_maximize() with server returning success response works. */
+PCUT_TEST(window_maximize_success)
+{
+	errno_t rc;
+	service_id_t sid;
+	display_t *disp = NULL;
+	display_wnd_params_t params;
+	display_window_t *wnd;
+	test_response_t resp;
+
+	async_set_fallback_port_handler(test_display_conn, &resp);
+
+	// FIXME This causes this test to be non-reentrant!
+	rc = loc_server_register(test_display_server);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = loc_service_register(test_display_svc, &sid);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = display_open(test_display_svc, &disp);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(disp);
+
+	resp.rc = EOK;
+	display_wnd_params_init(&params);
+	params.rect.p0.x = 0;
+	params.rect.p0.y = 0;
+	params.rect.p0.x = 100;
+	params.rect.p0.y = 100;
+
+	rc = display_window_create(disp, &params, &test_display_wnd_cb,
+	    (void *) &resp, &wnd);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_NOT_NULL(wnd);
+
+	resp.rc = EOK;
+	resp.window_maximize_called = false;
+
+	rc = display_window_maximize(wnd);
+	PCUT_ASSERT_TRUE(resp.window_maximize_called);
+	PCUT_ASSERT_ERRNO_VAL(resp.rc, rc);
 
 	display_window_destroy(wnd);
@@ -1719,4 +1950,18 @@
 }
 
+static errno_t test_window_get_max_rect(void *arg, sysarg_t wnd_id,
+    gfx_rect_t *rect)
+{
+	test_response_t *resp = (test_response_t *) arg;
+
+	resp->window_get_max_rect_called = true;
+	resp->get_max_rect_wnd_id = wnd_id;
+
+	if (resp->rc == EOK)
+		*rect = resp->get_max_rect_rrect;
+
+	return resp->rc;
+}
+
 static errno_t test_window_resize_req(void *arg, sysarg_t wnd_id,
     display_wnd_rsztype_t rsztype, gfx_coord2_t *pos)
@@ -1740,4 +1985,22 @@
 	resp->resize_offs = *offs;
 	resp->resize_nbound = *nrect;
+	return resp->rc;
+}
+
+static errno_t test_window_maximize(void *arg, sysarg_t wnd_id)
+{
+	test_response_t *resp = (test_response_t *) arg;
+
+	resp->window_maximize_called = true;
+	resp->resize_wnd_id = wnd_id;
+	return resp->rc;
+}
+
+static errno_t test_window_unmaximize(void *arg, sysarg_t wnd_id)
+{
+	test_response_t *resp = (test_response_t *) arg;
+
+	resp->window_unmaximize_called = true;
+	resp->resize_wnd_id = wnd_id;
 	return resp->rc;
 }