1 files changed, 21 insertions, 0 deletions
diff --git a/tests/functional/qemu_test/utils.py b/tests/functional/qemu_test/utils.py
index 2a1cb60d38..1bf1c410d5 100644
--- a/tests/functional/qemu_test/utils.py
+++ b/tests/functional/qemu_test/utils.py
@@ -15,6 +15,27 @@ import shutil
 import subprocess
 import tarfile
 
+"""
+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)
+
 def archive_extract(archive, dest_dir, member=None):
     with tarfile.open(archive) as tf:
         if hasattr(tarfile, 'data_filter'):