diff --git a/tests/unittests/CMakeLists.txt b/tests/unittests/CMakeLists.txt
index 6220f9da..79f6b218 100644
--- a/tests/unittests/CMakeLists.txt
+++ b/tests/unittests/CMakeLists.txt
@@ -126,6 +126,13 @@ if (HAVE_LIBFIDO2)
     )
 endif (HAVE_LIBFIDO2)
 
+if (WITH_SFTP)
+    set(LIBSSH_UNIT_TESTS
+        ${LIBSSH_UNIT_TESTS}
+        torture_unit_sftp
+    )
+endif (WITH_SFTP)
+
 foreach(_UNIT_TEST ${LIBSSH_UNIT_TESTS})
     add_cmocka_test(${_UNIT_TEST}
                     SOURCES ${_UNIT_TEST}.c
diff --git a/tests/unittests/torture_unit_sftp.c b/tests/unittests/torture_unit_sftp.c
new file mode 100644
index 00000000..12940039
--- /dev/null
+++ b/tests/unittests/torture_unit_sftp.c
@@ -0,0 +1,86 @@
+#include "config.h"
+
+#include "sftp_common.c"
+#include "torture.h"
+
+#define LIBSSH_STATIC
+
+static void test_sftp_parse_longname(void **state)
+{
+    const char *lname = NULL;
+    char *value = NULL;
+
+    /* state not used */
+    (void)state;
+
+    /* Valid example from SFTP draft, page 18:
+     * https://datatracker.ietf.org/doc/draft-spaghetti-sshm-filexfer/
+     */
+    lname = "-rwxr-xr-x   1 mjos     staff      348911 Mar 25 14:29 t-filexfer";
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_PERM);
+    assert_string_equal(value, "-rwxr-xr-x");
+    free(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_OWNER);
+    assert_string_equal(value, "mjos");
+    free(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_GROUP);
+    assert_string_equal(value, "staff");
+    free(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_SIZE);
+    assert_string_equal(value, "348911");
+    free(value);
+    /* This function is broken further as the date contains space which breaks
+     * the parsing altogether */
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_DATE);
+    assert_string_equal(value, "Mar");
+    free(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_TIME);
+    assert_string_equal(value, "25");
+    free(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_NAME);
+    assert_string_equal(value, "14:29");
+    free(value);
+}
+
+static void test_sftp_parse_longname_invalid(void **state)
+{
+    const char *lname = NULL;
+    char *value = NULL;
+
+    /* state not used */
+    (void)state;
+
+    /* Invalid inputs should not crash
+     */
+    lname = NULL;
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_PERM);
+    assert_null(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_NAME);
+    assert_null(value);
+
+    lname = "";
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_PERM);
+    assert_string_equal(value, "");
+    free(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_NAME);
+    assert_null(value);
+
+    lname = "-rwxr-xr-x   1";
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_PERM);
+    assert_string_equal(value, "-rwxr-xr-x");
+    free(value);
+    value = sftp_parse_longname(lname, SFTP_LONGNAME_NAME);
+    assert_null(value);
+}
+
+int torture_run_tests(void)
+{
+    int rc;
+    const struct CMUnitTest tests[] = {
+        cmocka_unit_test(test_sftp_parse_longname),
+        cmocka_unit_test(test_sftp_parse_longname_invalid),
+    };
+
+    rc = cmocka_run_group_tests(tests, NULL, NULL);
+    return rc;
+}