// Test with empty permissions
        testUser.setPermissions(new String[] {});
        assertNotNull(fessUserBean.getPermissions());
        assertEquals(0, fessUserBean.getPermissions().length);

        // Test with single permission
        testUser.setPermissions(new String[] { "read" });
        String[] permissions = fessUserBean.getPermissions();
        assertEquals(1, permissions.length);

                            .concat(Stream.of(Constants.COMMON_CONVERSION_RULE), Stream.of(Constants.PERMISSIONS, Constants.VIRTUAL_HOSTS))
                            .toArray(n -> new String[n])));
            entity.setPermissions(encodePermissions(form.permissions));
            entity.setVirtualHosts(split(form.virtualHosts, "\n")

        valueMap.put("action", Action.LOGIN.name());
        valueMap.put("user", user.map(FessUserBean::getUserId).orElse("-"));
        valueMap.put("permissions",
                user.map(u -> stream(u.getPermissions()).get(stream -> stream.collect(Collectors.joining(permissionSeparator))))
                        .filter(StringUtil::isNotBlank)
                        .orElse("-"));
        log(valueMap);
    }

    /**

        final List<String> permissionList = new ArrayList<>();
        LdapUser user = new LdapUser(new Hashtable<>(), "test") {
            @Override
            public String[] getPermissions() {
                return permissionList.toArray(n -> new String[n]);
            }
        };

        allowEmptyPermission.set(true);
        assertTrue(ldapManager.allowEmptyGroupAndRole(user));

            return new String[0];
        }

        @Override
        public String[] getGroupNames() {
            return new String[0];
        }

        @Override
        public String[] getPermissions() {
            return permissions;
        }
    }

    private static void assertThrows(final Class<? extends Throwable> expectedType, final Runnable runnable) {
        try {
            runnable.run();

            return new String[0];
        }

        @Override
        public String[] getGroupNames() {
            return new String[0];
        }

        @Override
        public String[] getPermissions() {
            return permissions;
        }

    }

    @Test
    public void test_setLoggerName() {
        String originalLoggerName = activityHelper.loggerName;