--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/regress/unit-tests/url_parse/test_url_parse.c	Tue Dec 06 13:51:55 2022 +0000
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2020 Sunil Nimmagadda <sunil@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <err.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "ftp.h"
+
+struct url *ftp_proxy, *http_proxy;
+volatile sig_atomic_t interrupted;
+const char *useragent;
+char *oarg;
+int activemode, family, io_debug, verbose, progressmeter;
+
+int
+fd_request(char *path, int flags, off_t *offset)
+{
+	/* dummy */
+	return 0;
+}
+
+static struct {
+	const char	*str;
+	struct url	 url;
+	int		 noparse;
+} testcases[] = {
+	{ "http://google.com/index.html", {
+	    S_HTTP, 0, "google.com", "80", "/index.html" } },
+	{ "https://google.com:", {
+	    S_HTTPS, 0, "google.com", "443" } },
+	{ "file:.", {
+	    S_FILE, 0, NULL, NULL, "." } },
+	{ "http://[::1]:/index.html", {
+	    S_HTTP, 1, "::1", "80", "/index.html" } },
+	{ "http://[::1]:1234/", {
+	    S_HTTP, 1, "::1", "1234", "/" } },
+	{ "foo.bar", {}, 1 },
+	{ "http://[::1:1234", {}, 1 },
+	{ "http://[1::2::3]:1234", {
+	    S_HTTP, 0, "1::2::3", "1234" } },
+	{ "http://foo.com:bar", {
+	    S_HTTP, 0, "foo.com", "bar" } },
+	{ "http:/foo.com", {}, 1 },
+	{ "http://foo:bar@baz.com", {
+	    S_HTTP, 0, "baz.com", "80" } },
+	{ "http://[::1]abcd/", {}, 1 },
+	{ "    http://localhost:8080", {
+	    S_HTTP, 0, "localhost", "8080" } },
+	{ "ftps://localhost:21", {}, 1 },
+	{ "http://marc.info/?l=openbsd-tech&m=151790635206581&q=raw", {
+	    S_HTTP, 0, "marc.info", "80", "/?l=openbsd-tech&m=151790635206581&q=raw" } },
+	{ "file://disklabel.template", {
+	    S_FILE, 0, NULL, NULL, "/disklabel.template" } },
+	{ "file:/disklabel.template", {
+	    S_FILE, 0, NULL, NULL, "/disklabel.template" } },
+	{ "file:///disklabel.template", {
+	    S_FILE, 0, NULL, NULL, "/disklabel.template" } },
+};
+
+static int
+ptr_null_cmp(void *a, void *b)
+{
+	if ((a && b == NULL) || (a == NULL && b))
+		return 1;
+
+	return 0;
+}
+
+static int
+url_cmp(struct url *a, struct url *b)
+{
+	if (ptr_null_cmp(a, b) ||
+	    ptr_null_cmp(a->host, b->host) ||
+	    ptr_null_cmp(a->port, b->port) ||
+	    ptr_null_cmp(a->path, b->path))
+		return 1;
+
+	if (a->scheme != b->scheme ||
+	    (a->host && strcmp(a->host, b->host)) ||
+	    (a->port && strcmp(a->port, b->port)) ||
+	    (a->path && strcmp(a->path, b->path)))
+		return 1;
+
+	return 0;
+}
+
+int
+main(void)
+{
+	struct url	*url, *eurl;
+	size_t		 i;
+
+	if (freopen("/dev/null", "w", stderr) == NULL)
+		err(1, "freopen");
+
+	for (i = 0; i < nitems(testcases); i++) {
+		url = url_parse(testcases[i].str);
+		if (testcases[i].noparse) {
+			if (url != NULL)
+				goto bad;
+
+			continue;
+		}
+
+		if (url_cmp(url, &testcases[i].url) != 0)
+			goto bad;
+	}
+
+	return 0;
+
+ bad:
+	printf("%s\n", testcases[i].str);
+	eurl = &testcases[i].url;
+	printf("Expected: scheme = %s, host = %s, port = %s, path = %s\n",
+	    url_scheme_str(eurl->scheme), eurl->host, eurl->port, eurl->path);
+	printf("Got: scheme = %s, host = %s, port = %s, path = %s\n",
+	    url_scheme_str(url->scheme), url->host, url->port, url->path);
+	return 1;
+}