Index: uspace/lib/fmgt/test/copy.c
===================================================================
--- uspace/lib/fmgt/test/copy.c	(revision 81805e06a9f080e240dbc7463874411778910389)
+++ uspace/lib/fmgt/test/copy.c	(revision 81805e06a9f080e240dbc7463874411778910389)
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 2025 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 <fmgt.h>
+#include <pcut/pcut.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <str.h>
+#include <vfs/vfs.h>
+
+PCUT_INIT;
+
+PCUT_TEST_SUITE(copy);
+
+/** Copy file to file. */
+PCUT_TEST(copy_file_file)
+{
+	fmgt_t *fmgt = NULL;
+	char buf[L_tmpnam];
+	char *sname;
+	char *dname;
+	FILE *f;
+	char *p;
+	int rv;
+	fmgt_flist_t *flist;
+	errno_t rc;
+
+	/* Create name for temporary directory */
+	p = tmpnam(buf);
+	PCUT_ASSERT_NOT_NULL(p);
+
+	/* Create temporary directory */
+	rc = vfs_link_path(p, KIND_DIRECTORY, NULL);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rv = asprintf(&sname, "%s/%s", p, "a");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	rv = asprintf(&dname, "%s/%s", p, "b");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	f = fopen(sname, "wb");
+	PCUT_ASSERT_NOT_NULL(f);
+
+	rv = fprintf(f, "X");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	rv = fclose(f);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rc = fmgt_create(&fmgt);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_create(&flist);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_append(flist, sname);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_copy(fmgt, flist, dname);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	fmgt_flist_destroy(flist);
+
+	rv = remove(sname);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rv = remove(dname);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rv = remove(p);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	free(sname);
+	free(dname);
+	fmgt_destroy(fmgt);
+}
+
+/** Copy directory to directory. */
+PCUT_TEST(copy_dir_dir)
+{
+	fmgt_t *fmgt = NULL;
+	char buf[L_tmpnam];
+	char *sname;
+	char *dname;
+	char *p;
+	int rv;
+	fmgt_flist_t *flist;
+	errno_t rc;
+
+	/* Create name for temporary directory */
+	p = tmpnam(buf);
+	PCUT_ASSERT_NOT_NULL(p);
+
+	/* Create temporary directory */
+	rc = vfs_link_path(p, KIND_DIRECTORY, NULL);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rv = asprintf(&sname, "%s/%s", p, "a");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	rv = asprintf(&dname, "%s/%s", p, "b");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	rc = vfs_link_path(sname, KIND_DIRECTORY, NULL);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_create(&fmgt);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_create(&flist);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_append(flist, sname);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_copy(fmgt, flist, dname);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	fmgt_flist_destroy(flist);
+
+	rv = remove(sname);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rv = remove(dname);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rv = remove(p);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	free(sname);
+	free(dname);
+	fmgt_destroy(fmgt);
+}
+
+/** Copy files and directories into directory. */
+PCUT_TEST(copy_into_dir)
+{
+	fmgt_t *fmgt = NULL;
+	char buf[L_tmpnam];
+	char *fname;
+	char *dname;
+	FILE *f;
+	char *p;
+	int rv;
+	fmgt_flist_t *flist;
+	errno_t rc;
+
+	/* Create name for temporary directory */
+	p = tmpnam(buf);
+	PCUT_ASSERT_NOT_NULL(p);
+
+	/* Create temporary directory */
+	rc = vfs_link_path(p, KIND_DIRECTORY, NULL);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rv = asprintf(&fname, "%s/%s", p, "a");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	rv = asprintf(&dname, "%s/%s", p, "b");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	f = fopen(fname, "wb");
+	PCUT_ASSERT_NOT_NULL(f);
+
+	rv = fprintf(f, "X");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	rv = fclose(f);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rc = vfs_link_path(dname, KIND_DIRECTORY, NULL);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_create(&fmgt);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_create(&flist);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_append(flist, fname);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_append(flist, dname);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_copy(fmgt, flist, dname);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	fmgt_flist_destroy(flist);
+
+	rv = remove(fname);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rv = remove(dname);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rv = remove(p);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	free(fname);
+	free(dname);
+	fmgt_destroy(fmgt);
+}
+
+PCUT_EXPORT(copy);
Index: uspace/lib/fmgt/test/walk.c
===================================================================
--- uspace/lib/fmgt/test/walk.c	(revision 144fafda7cb6d43dfda1c93b8e46b8d51635e0c2)
+++ uspace/lib/fmgt/test/walk.c	(revision 81805e06a9f080e240dbc7463874411778910389)
@@ -39,7 +39,7 @@
 PCUT_TEST_SUITE(walk);
 
-static errno_t test_walk_dir_enter(void *, const char *);
-static errno_t test_walk_dir_leave(void *, const char *);
-static errno_t test_walk_file(void *, const char *);
+static errno_t test_walk_dir_enter(void *, const char *, const char *);
+static errno_t test_walk_dir_leave(void *, const char *, const char *);
+static errno_t test_walk_file(void *, const char *, const char *);
 
 static fmgt_walk_cb_t test_walk_cb = {
@@ -55,9 +55,12 @@
 	char *dirname;
 	char *fname;
+	char *dest;
+	char *de_dest;
+	char *dl_dest;
 	errno_t rc;
 } test_resp_t;
 
-/** Walk file system tree. */
-PCUT_TEST(walk_success)
+/** Walk file system tree with no destination and successful result. */
+PCUT_TEST(walk_nodest_success)
 {
 	char buf[L_tmpnam];
@@ -129,24 +132,102 @@
 }
 
-errno_t test_walk_dir_enter(void *arg, const char *fname)
+/** Walk file system tree with destination and successful result. */
+PCUT_TEST(walk_dest_success)
+{
+	char buf[L_tmpnam];
+	char *fname;
+	FILE *f;
+	char *p;
+	int rv;
+	fmgt_flist_t *flist;
+	fmgt_walk_params_t params;
+	test_resp_t resp;
+	errno_t rc;
+
+	/* Create name for temporary directory */
+	p = tmpnam(buf);
+	PCUT_ASSERT_NOT_NULL(p);
+
+	/* Create temporary directory */
+	rc = vfs_link_path(p, KIND_DIRECTORY, NULL);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rv = asprintf(&fname, "%s/%s", p, "a");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	f = fopen(fname, "wb");
+	PCUT_ASSERT_NOT_NULL(f);
+
+	rv = fprintf(f, "X");
+	PCUT_ASSERT_TRUE(rv >= 0);
+
+	rv = fclose(f);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rc = fmgt_flist_create(&flist);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	rc = fmgt_flist_append(flist, p);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	fmgt_walk_params_init(&params);
+	params.flist = flist;
+	params.dest = "foo";
+	params.cb = &test_walk_cb;
+	params.arg = &resp;
+
+	resp.dir_enter = false;
+	resp.dir_leave = false;
+	resp.file_proc = false;
+	resp.rc = EOK;
+
+	rc = fmgt_walk(&params);
+	PCUT_ASSERT_ERRNO_VAL(EOK, rc);
+
+	PCUT_ASSERT_TRUE(resp.dir_enter);
+	PCUT_ASSERT_TRUE(resp.dir_leave);
+	PCUT_ASSERT_TRUE(resp.file_proc);
+	PCUT_ASSERT_STR_EQUALS(p, resp.dirname);
+	PCUT_ASSERT_STR_EQUALS(fname, resp.fname);
+	printf("dest='%s'\n", resp.dest);
+	printf("de_dest='%s'\n", resp.de_dest);
+	printf("dl_dest='%s'\n", resp.dl_dest);
+
+	free(resp.dirname);
+	free(resp.fname);
+	fmgt_flist_destroy(flist);
+
+	rv = remove(fname);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	rv = remove(p);
+	PCUT_ASSERT_INT_EQUALS(0, rv);
+
+	free(fname);
+}
+
+errno_t test_walk_dir_enter(void *arg, const char *fname, const char *dest)
 {
 	test_resp_t *resp = (test_resp_t *)arg;
 	resp->dir_enter = true;
 	resp->dirname = str_dup(fname);
+	resp->de_dest = str_dup(dest);
 	return resp->rc;
 }
 
-errno_t test_walk_dir_leave(void *arg, const char *fname)
+errno_t test_walk_dir_leave(void *arg, const char *fname, const char *dest)
 {
 	test_resp_t *resp = (test_resp_t *)arg;
 	resp->dir_leave = true;
+	resp->dl_dest = str_dup(dest);
 	return resp->rc;
 }
 
-errno_t test_walk_file(void *arg, const char *fname)
+errno_t test_walk_file(void *arg, const char *fname, const char *dest)
 {
 	test_resp_t *resp = (test_resp_t *)arg;
 	resp->file_proc = true;
 	resp->fname = str_dup(fname);
+	resp->dest = str_dup(dest);
 	return resp->rc;
 }
