Index: uspace/lib/c/test/loc.c
===================================================================
--- uspace/lib/c/test/loc.c	(revision be0ec5095e0bc6fbb2c0524886c24ac20993fdbc)
+++ uspace/lib/c/test/loc.c	(revision be0ec5095e0bc6fbb2c0524886c24ac20993fdbc)
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2023 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 <errno.h>
+#include <loc.h>
+#include <pcut/pcut.h>
+
+PCUT_INIT;
+
+PCUT_TEST_SUITE(loc);
+
+/** loc_server_register() can be called multiple times */
+PCUT_TEST(server_register)
+{
+	errno_t rc;
+	loc_srv_t *sa, *sb;
+	service_id_t svca, svcb;
+	char *na, *nb;
+	char *sna, *snb;
+
+	rc = loc_server_register("test-a", &sa);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = loc_server_register("test-b", &sb);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	// XXX Without a unique name this is not reentrant
+	rc = loc_service_register(sa, "test/libc-service-a", &svca);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	// XXX Without a unique name this is not reentrant
+	rc = loc_service_register(sb, "test/libc-service-b", &svcb);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = loc_service_get_name(svca, &na);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_STR_EQUALS("test/libc-service-a", na);
+
+	rc = loc_service_get_server_name(svca, &sna);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_STR_EQUALS("test-a", sna);
+
+	rc = loc_service_get_name(svcb, &nb);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_STR_EQUALS("test/libc-service-b", nb);
+
+	rc = loc_service_get_server_name(svcb, &snb);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	PCUT_ASSERT_STR_EQUALS("test-b", snb);
+
+	rc = loc_service_unregister(sa, svca);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+	rc = loc_service_unregister(sb, svcb);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	loc_server_unregister(sa);
+	loc_server_unregister(sb);
+}
+
+PCUT_EXPORT(loc);
Index: uspace/lib/c/test/main.c
===================================================================
--- uspace/lib/c/test/main.c	(revision d1582b502edcb7bfeef771a2019538f265e7e27c)
+++ uspace/lib/c/test/main.c	(revision be0ec5095e0bc6fbb2c0524886c24ac20993fdbc)
@@ -1,3 +1,4 @@
 /*
+ * Copyright (c) 2023 Jiri Svoboda
  * Copyright (c) 2014 Vojtech Horky
  * All rights reserved.
@@ -42,4 +43,5 @@
 PCUT_IMPORT(imath);
 PCUT_IMPORT(inttypes);
+PCUT_IMPORT(loc);
 PCUT_IMPORT(mem);
 PCUT_IMPORT(odict);