Index: uspace/lib/display/test/main.c
===================================================================
--- uspace/lib/display/test/main.c	(revision 5480d5ef8109a81271ad3461add3babd6bddae04)
+++ uspace/lib/display/test/main.c	(revision d70e7b7bcaa004700e0af401f3e5b48e47f018c1)
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2019 Jiri Svoboda
+ * Copyright (c) 2020 Jiri Svoboda
  * All rights reserved.
  *
@@ -32,4 +32,5 @@
 
 PCUT_IMPORT(display);
+PCUT_IMPORT(wndresize);
 
 PCUT_MAIN();
Index: uspace/lib/display/test/wndresize.c
===================================================================
--- uspace/lib/display/test/wndresize.c	(revision d70e7b7bcaa004700e0af401f3e5b48e47f018c1)
+++ uspace/lib/display/test/wndresize.c	(revision d70e7b7bcaa004700e0af401f3e5b48e47f018c1)
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2020 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <display/wndresize.h>
+#include <errno.h>
+#include <limits.h>
+#include <pcut/pcut.h>
+
+PCUT_INIT;
+
+PCUT_TEST_SUITE(wndresize);
+
+/** display_cursor_from_wrsz() correctly translates resize type to cursor */
+PCUT_TEST(cursor_from_wrsz)
+{
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_ud,
+	    display_cursor_from_wrsz(display_wr_top));
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_ud,
+	    display_cursor_from_wrsz(display_wr_bottom));
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_lr,
+	    display_cursor_from_wrsz(display_wr_left));
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_lr,
+	    display_cursor_from_wrsz(display_wr_right));
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_uldr,
+	    display_cursor_from_wrsz(display_wr_top_left));
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_uldr,
+	    display_cursor_from_wrsz(display_wr_bottom_right));
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_urdl,
+	    display_cursor_from_wrsz(display_wr_top_right));
+	PCUT_ASSERT_INT_EQUALS(dcurs_size_urdl,
+	    display_cursor_from_wrsz(display_wr_bottom_left));
+}
+
+/** display_wndrsz_valid() correctly verifies window resize type */
+PCUT_TEST(wndrsz_valid)
+{
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(INT_MIN));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(display_wr_top - 1));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_top));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_left));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_bottom));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_right));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_top_left));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_top_right));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_bottom_left));
+	PCUT_ASSERT_TRUE(display_wndrsz_valid(display_wr_bottom_right));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(display_wr_bottom_right + 1));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(
+	    display_wr_top | display_wr_bottom));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(
+	    display_wr_left | display_wr_right));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(
+	    display_wr_top | display_wr_left | display_wr_right));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(
+	    display_wr_bottom | display_wr_left | display_wr_right));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(
+	    display_wr_top | display_wr_bottom | display_wr_left));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(
+	    display_wr_top | display_wr_bottom | display_wr_right));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(
+	    display_wr_top | display_wr_bottom |
+	    display_wr_left | display_wr_right));
+	PCUT_ASSERT_FALSE(display_wndrsz_valid(INT_MAX));
+}
+
+PCUT_EXPORT(wndresize);