[PATCH 1/2] tests/avocado: Factor file_truncate() helper out

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Factor file_truncate() helper out of image_pow2ceil_expand()
for reuse.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 tests/avocado/boot_linux_console.py | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/tests/avocado/boot_linux_console.py b/tests/avocado/boot_linux_console.py
index 8c1d981586..49a4b22fe1 100644
--- a/tests/avocado/boot_linux_console.py
+++ b/tests/avocado/boot_linux_console.py
@@ -30,15 +30,19 @@
 def pow2ceil(x):
     return 1 if x == 0 else 2**(x - 1).bit_length()
 
+"""
+Truncate file
+"""
+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)
+    file_truncate(path, pow2ceil(size))
 
 class LinuxKernelTest(QemuSystemTest):
     KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
-- 
2.38.1