diff --git a/tests/dns/Makefile.am b/tests/dns/Makefile.am
index 73e343a2c2..70104151cc 100644
--- a/tests/dns/Makefile.am
+++ b/tests/dns/Makefile.am
@@ -46,6 +46,7 @@ check_PROGRAMS =		\
 	sigs_test		\
 	skr_test		\
 	time_test		\
+	transport_test		\
 	tsig_test		\
 	update_test		\
 	zonemgr_test		\
diff --git a/tests/dns/transport_test.c b/tests/dns/transport_test.c
new file mode 100644
index 0000000000..5bf07a149f
--- /dev/null
+++ b/tests/dns/transport_test.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#include <inttypes.h>
+#include <sched.h> /* IWYU pragma: keep */
+#include <setjmp.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define UNIT_TESTING
+#include <cmocka.h>
+
+#include <isc/string.h>
+#include <isc/util.h>
+
+#include <dns/transport.h>
+
+#include <tests/dns.h>
+
+ISC_RUN_TEST_IMPL(dns_transport_totext) {
+	dns_transport_t *udp = NULL, *tcp = NULL;
+	dns_transport_t *tls = NULL, *http = NULL;
+	dns_transport_list_t *tlist = NULL;
+
+	tlist = dns_transport_list_new(mctx);
+	udp = dns_transport_new(dns_rootname, DNS_TRANSPORT_UDP, tlist);
+	tcp = dns_transport_new(dns_rootname, DNS_TRANSPORT_TCP, tlist);
+	tls = dns_transport_new(dns_rootname, DNS_TRANSPORT_TLS, tlist);
+	http = dns_transport_new(dns_rootname, DNS_TRANSPORT_HTTP, tlist);
+
+	assert_string_equal(dns_transport_totext(dns_transport_get_type(udp)),
+			    "udp");
+	assert_string_equal(dns_transport_totext(dns_transport_get_type(tcp)),
+			    "tcp");
+	assert_string_equal(dns_transport_totext(dns_transport_get_type(tls)),
+			    "tls");
+	assert_string_equal(dns_transport_totext(dns_transport_get_type(http)),
+			    "https");
+
+	dns_transport_list_detach(&tlist);
+}
+
+ISC_TEST_LIST_START
+ISC_TEST_ENTRY(dns_transport_totext)
+ISC_TEST_LIST_END
+
+ISC_TEST_MAIN