tests/functional: Convert the Avocado s390x tuxrun test

Move the test to a new file so that it can be run via
qemu-system-s390x in the functional framework.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241011131937.377223-6-thuth@redhat.com>

tests/functional/test_s390x_tuxrun.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+#
+# Functional test that boots known good tuxboot images the same way
+# that tuxrun (www.tuxrun.org) does. This tool is used by things like
+# the LKFT project to run regression tests on kernels.
+#
+# Copyright (c) 2023 Linaro Ltd.
+#
+# Author:
+#  Alex Bennée <alex.bennee@linaro.org>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from qemu_test import Asset
+from qemu_test.tuxruntest import TuxRunBaselineTest
+
+class TuxRunS390xTest(TuxRunBaselineTest):
+
+    ASSET_S390X_KERNEL = Asset(
+        'https://storage.tuxboot.com/20230331/s390/bzImage',
+        '0414e98dd1c3dafff8496c9cd9c28a5f8d04553bb5ba37e906a812b48d442ef0')
+    ASSET_S390X_ROOTFS = Asset(
+        'https://storage.tuxboot.com/20230331/s390/rootfs.ext4.zst',
+        '88c37c32276677f873a25ab9ec6247895b8e3e6f8259134de2a616080b8ab3fc')
+
+    def test_s390(self):
+        self.wait_for_shutdown=False
+        self.common_tuxrun(kernel_asset=self.ASSET_S390X_KERNEL,
+                           rootfs_asset=self.ASSET_S390X_ROOTFS,
+                           drive="virtio-blk-ccw",
+                           haltmsg="Requesting system halt")
+
+if __name__ == '__main__':
+    TuxRunBaselineTest.main()