--- /dev/null
+#!/bin/sh
+#
+# Copyright (c) 2022 Pavel Filipenský <pfilipen@redhat.com>
+#
+# Tests for "username map" smb.conf parameter for UNIX groups
+
+if [ $# -lt 2 ]; then
+cat <<EOF
+Usage: test_usernamemap.sh SERVER SMBCLIENT
+EOF
+exit 1;
+fi
+
+SERVER="$1"
+SMBCLIENT="$2"
+SMBCLIENT="${VALGRIND} ${SMBCLIENT}"
+
+incdir=$(dirname "$0")/../../../testprogs/blackbox
+. "${incdir}"/subunit.sh
+
+failed=0
+
+# jackthemapper is mapped to jacknomapper, so we need jacknomapper password
+testit "jackthemapper" "${SMBCLIENT}" //"${SERVER}"/tmp -U"${SERVER}/jackthemapper%nOmApsEcrEt" -c ls || failed=$((failed + 1))
+# jacknomapper is not mapped, so we need jacknomapper password
+testit "jacknomapper" "${SMBCLIENT}" //"${SERVER}"/tmp -U"${SERVER}/jacknomapper%nOmApsEcrEt" -c ls || failed=$((failed + 1))
+
+testok "$0" "${failed}"
plantestsuite("samba3.blackbox.smbclient_basic.SMB3_02", "nt4_dc_schannel", [os.path.join(samba3srcdir, "script/tests/test_smbclient_basic.sh"), '$SERVER', '$SERVER_IP', '$DC_USERNAME', '$DC_PASSWORD', smbclient3, configuration, "-mSMB3_02"])
plantestsuite("samba3.blackbox.smbclient_basic.SMB3_11", "nt4_dc_schannel", [os.path.join(samba3srcdir, "script/tests/test_smbclient_basic.sh"), '$SERVER', '$SERVER_IP', '$DC_USERNAME', '$DC_PASSWORD', smbclient3, configuration, "-mSMB3_11"])
+plantestsuite("samba3.blackbox.smbclient_usernamemap", "ad_member_idmap_nss:local", [os.path.join(samba3srcdir, "script/tests/test_usernamemap.sh"), '$SERVER', smbclient3])
+
plantestsuite("samba3.blackbox.smbclient_basic", "ad_member", [os.path.join(samba3srcdir, "script/tests/test_smbclient_basic.sh"), '$SERVER', '$SERVER_IP', '$DC_USERNAME', '$DC_PASSWORD', smbclient3, configuration])
for options in ["", "--option=clientntlmv2auth=no", "--option=clientusespnego=no", "--option=clientusespnego=no --option=clientntlmv2auth=no", "--option=clientntlmv2auth=no --option=clientlanmanauth=yes --max-protocol=LANMAN2", "--option=clientntlmv2auth=no --option=clientlanmanauth=yes --option=clientmaxprotocol=NT1"]:
if "NT1" in options or "LANMAN2" in options: