tests/functional: Convert some tests that download files via fetch_asset()

Now that we've got the Asset class with pre-caching, we can convert
some Avocado tests that use fetch_asset() for downloading their
required files.

Message-ID: <20240830133841.142644-18-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/functional/test_mips64el_loongson3v.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+#
+# Functional tests for the Generic Loongson-3 Platform.
+#
+# Copyright (c) 2021 Jiaxun Yang <jiaxun.yang@flygoat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or later.
+# See the COPYING file in the top-level directory.
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+import os
+import time
+
+from unittest import skipUnless
+from qemu_test import QemuSystemTest, Asset
+from qemu_test import wait_for_console_pattern
+
+class MipsLoongson3v(QemuSystemTest):
+    timeout = 60
+
+    ASSET_PMON = Asset(
+        ('https://github.com/loongson-community/pmon/'
+         'releases/download/20210112/pmon-3avirt.bin'),
+        'fcdf6bb2cb7885a4a62f31fcb0d5e368bac7b6cea28f40c6dfa678af22fea20a')
+
+    @skipUnless(os.getenv('QEMU_TEST_ALLOW_UNTRUSTED_CODE'), 'untrusted code')
+    def test_pmon_serial_console(self):
+        self.set_machine('loongson3-virt')
+
+        pmon_path = self.ASSET_PMON.fetch()
+
+        self.vm.set_console()
+        self.vm.add_args('-bios', pmon_path)
+        self.vm.launch()
+        wait_for_console_pattern(self, 'CPU GODSON3 BogoMIPS:')
+
+if __name__ == '__main__':
+    QemuSystemTest.main()