diff --git a/test/dots_xcurses.c b/test/dots_xcurses.c
new file mode 100644
index 0000000..b4b5219
--- /dev/null
+++ b/test/dots_xcurses.c
@@ -0,0 +1,286 @@
+/****************************************************************************
+ * Copyright 2018-2022,2023 Thomas E. Dickey                                *
+ * Copyright 2017 Free Software Foundation, Inc.                            *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/*
+ * Author: Thomas E. Dickey
+ *
+ * $Id: dots_xcurses.c,v 1.29 2023/01/07 17:21:48 tom Exp $
+ *
+ * A simple demo of the wide-curses interface used for comparison with termcap.
+ */
+#include <test.priv.h>
+
+#if !defined(_NC_WINDOWS)
+#include <sys/time.h>
+#endif
+
+#include <time.h>
+
+#if USE_WIDEC_SUPPORT
+
+#if HAVE_ALLOC_PAIR
+#define NewPair(n) x_option ? ((void *)&(n)) : NULL
+#else
+#define NewPair(n) NULL
+#endif
+
+#define InitPair(p,fg,bg) init_pair((short) (p), (short) (fg), (short) (bg))
+
+static bool interrupted = FALSE;
+static long total_chars = 0;
+static time_t started;
+
+#if HAVE_ALLOC_PAIR
+static bool x_option = FALSE;
+#endif
+
+static void
+cleanup(void)
+{
+    endwin();
+
+    fflush(stdout);
+    fprintf(stderr, "\n\n%ld total cells, rate %.2f/sec\n",
+	    total_chars,
+	    ((double) (total_chars) / (double) (time((time_t *) 0) - started)));
+}
+
+static void
+onsig(int n GCC_UNUSED)
+{
+    interrupted = TRUE;
+}
+
+static double
+ranf(void)
+{
+    long r = (rand() & 077777);
+    return ((double) r / 32768.);
+}
+
+static int
+mypair(int fg, int bg)
+{
+    int result;
+#if HAVE_ALLOC_PAIR
+    if (x_option) {
+	result = alloc_pair(fg, bg);
+    } else
+#endif
+    {
+	int pair = (fg * COLORS) + bg;
+	result = (pair >= COLOR_PAIRS) ? -1 : pair;
+    }
+    return result;
+}
+
+static void
+set_colors(int fg, int bg)
+{
+    int pair = mypair(fg, bg);
+    if (pair > 0) {
+	(void) color_set((short) pair, NewPair(pair));
+    }
+}
+
+static void
+usage(int ok)
+{
+    static const char *msg[] =
+    {
+	"Usage: dots_xcurses [options]"
+	,""
+	,USAGE_COMMON
+	,"Options:"
+	," -T TERM  override $TERM"
+#if HAVE_USE_DEFAULT_COLORS
+	," -d       invoke use_default_colors()"
+#endif
+#if HAVE_USE_ENV
+	," -e       allow environment $LINES / $COLUMNS"
+#endif
+	," -m SIZE  set margin (default: 2)"
+	," -r SECS  self-interrupt/exit after specified number of seconds"
+	," -s MSECS delay 1% of the time (default: 1 msecs)"
+#if HAVE_ALLOC_PAIR
+	," -x       use alloc_pair() rather than init_pair()"
+#endif
+    };
+    size_t n;
+
+    for (n = 0; n < SIZEOF(msg); n++)
+	fprintf(stderr, "%s\n", msg[n]);
+
+    ExitProgram(ok ? EXIT_SUCCESS : EXIT_FAILURE);
+}
+/* *INDENT-OFF* */
+VERSION_COMMON()
+/* *INDENT-ON* */
+
+int
+main(int argc, char *argv[])
+{
+    int fg, bg, ch;
+    wchar_t wch[2];
+    double r;
+    double c;
+#if HAVE_USE_DEFAULT_COLORS
+    bool d_option = FALSE;
+#endif
+    int m_option = 2;
+    int r_option = 0;
+    int s_option = 1;
+    size_t need;
+    char *my_env;
+
+    while ((ch = getopt(argc, argv, OPTS_COMMON "T:dem:r:s:x")) != -1) {
+	switch (ch) {
+	case 'T':
+	    need = 6 + strlen(optarg);
+	    if ((my_env = malloc(need)) != NULL) {
+		_nc_SPRINTF(my_env, _nc_SLIMIT(need) "TERM=%s", optarg);
+		putenv(my_env);
+	    }
+	    break;
+#if HAVE_USE_DEFAULT_COLORS
+	case 'd':
+	    d_option = TRUE;
+	    break;
+#endif
+#if HAVE_USE_ENV
+	case 'e':
+	    use_env(TRUE);
+	    break;
+#endif
+	case 'm':
+	    m_option = atoi(optarg);
+	    break;
+	case 'r':
+	    r_option = atoi(optarg);
+	    break;
+	case 's':
+	    s_option = atoi(optarg);
+	    break;
+#if HAVE_ALLOC_PAIR
+	case 'x':
+	    x_option = TRUE;
+	    break;
+#endif
+	case OPTS_VERSION:
+	    show_version(argv);
+	    ExitProgram(EXIT_SUCCESS);
+	default:
+	    usage(ch == OPTS_USAGE);
+	    /* NOTREACHED */
+	}
+    }
+
+    setlocale(LC_ALL, "");
+    srand((unsigned) time(0));
+
+    SetupAlarm(r_option);
+    InitAndCatch(initscr(), onsig);
+    if (has_colors()) {
+	start_color();
+#if HAVE_USE_DEFAULT_COLORS
+	if (d_option)
+	    use_default_colors();
+#endif
+#if HAVE_ALLOC_PAIR
+	if (x_option) {
+	    ;			/* nothing */
+	} else
+#endif
+	{
+	    for (fg = 0; fg < COLORS; fg++) {
+		for (bg = 0; bg < COLORS; bg++) {
+		    int pair;
+		    if (interrupted) {
+			cleanup();
+			ExitProgram(EXIT_FAILURE);
+		    }
+		    pair = mypair(fg, bg);
+		    if (pair > 0) {
+			InitPair(pair, fg, bg);
+		    }
+		}
+	    }
+	}
+    }
+
+    r = (double) (LINES - (2 * m_option));
+    c = (double) (COLS - (2 * m_option));
+    started = time((time_t *) 0);
+
+    fg = COLOR_WHITE;
+    bg = COLOR_BLACK;
+    wch[1] = 0;
+    while (!interrupted) {
+	int x = (int) (c * ranf()) + m_option;
+	int y = (int) (r * ranf()) + m_option;
+	int p = (ranf() > 0.9) ? '*' : ' ';
+
+	move(y, x);
+	if (has_colors()) {
+	    int z = (int) (ranf() * COLORS);
+	    if (ranf() > 0.01) {
+		set_colors(fg = z, bg);
+	    } else {
+		set_colors(fg, bg = z);
+		if (s_option)
+		    napms(s_option);
+	    }
+	} else {
+	    if (ranf() <= 0.01) {
+		if (ranf() > 0.6) {
+		    attr_on(WA_REVERSE, NULL);
+		} else {
+		    attr_off(WA_REVERSE, NULL);
+		}
+		if (s_option)
+		    napms(s_option);
+	    }
+	}
+	wch[0] = (wchar_t) p;
+	addnwstr(wch, 1);
+	refresh();
+	++total_chars;
+    }
+    cleanup();
+    ExitProgram(EXIT_SUCCESS);
+}
+
+#else
+int
+main(void)
+{
+    printf("This program requires the wide-ncurses library\n");
+    ExitProgram(EXIT_FAILURE);
+}
+#endif