Merge branch 'ondrej/dont-fail-system-test-on-missing-pytest-v9_16' into 'v9_16'

Add prereq.sh script to the shutdown system test

See merge request isc-projects/bind9!3796

bin/tests/system/shutdown/prereq.sh

@@ -0,0 +1,36 @@
+#!/bin/sh
+#
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+SYSTEMTESTTOP=..
+. $SYSTEMTESTTOP/conf.sh
+
+if test -n "$PYTHON"
+then
+    if $PYTHON -c "import pytest" 2> /dev/null
+    then
+        :
+    else
+        echo_i "This test requires the pytest framework." >&2
+    fi
+
+    if $PYTHON -c "import dns" 2> /dev/null
+    then
+        :
+    else
+        echo_i "This test requires the dnspython module." >&2
+        exit 1
+    fi
+else
+    echo_i "This test requires Python, the pytest framework and the dnspython module." >&2
+    exit 1
+fi
+
+exit 0

util/copyrights

@@ -963,6 +963,7 @@
 ./bin/tests/system/sfcache/tests.sh		SH	2014,2016,2017,2018,2019,2020
 ./bin/tests/system/shutdown/clean.sh		SH	2020
 ./bin/tests/system/shutdown/conftest.py		PYTHON	2020
+./bin/tests/system/shutdown/prereq.sh		SH	2020
 ./bin/tests/system/shutdown/setup.sh		SH	2020
 ./bin/tests/system/shutdown/tests-shutdown.py	PYTHON-BIN	2020
 ./bin/tests/system/smartsign/clean.sh		SH	2010,2012,2014,2016,2018,2019,2020