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-rw-r--r--tests/functional/qemu_test/utils.py39
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/functional/qemu_test/utils.py b/tests/functional/qemu_test/utils.py
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+# Utilities for python-based QEMU tests
+#
+# Copyright 2024 Red Hat, Inc.
+#
+# Authors:
+# Thomas Huth <thuth@redhat.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.
+
+import os
+
+from qemu.utils import get_info_usernet_hostfwd_port
+
+
+def get_usernet_hostfwd_port(vm):
+ res = vm.cmd('human-monitor-command', command_line='info usernet')
+ return get_info_usernet_hostfwd_port(res)
+
+"""
+Round up to next power of 2
+"""
+def pow2ceil(x):
+ return 1 if x == 0 else 2**(x - 1).bit_length()
+
+def file_truncate(path, size):
+ if size != os.path.getsize(path):
+ with open(path, 'ab+') as fd:
+ fd.truncate(size)
+
+"""
+Expand file size to next power of 2
+"""
+def image_pow2ceil_expand(path):
+ size = os.path.getsize(path)
+ size_aligned = pow2ceil(size)
+ if size != size_aligned:
+ with open(path, 'ab+') as fd:
+ fd.truncate(size_aligned)