[PATCH v11 10/11] qcow2_format.py: introduce Qcow2HeaderExtensionsDoc class

[Andrey Shinkevich]

Per original script design, QcowHeader class may dump the QCOW2 header
info separately from the QCOW2 extensions info. To implement the
to_dict() method for dumping extensions, let us introduce the class
Qcow2HeaderExtensionsDoc.

Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
---
 tests/qemu-iotests/qcow2_format.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/qemu-iotests/qcow2_format.py 
b/tests/qemu-iotests/qcow2_format.py
index 19d29b8..d2a8659 100644
--- a/tests/qemu-iotests/qcow2_format.py
+++ b/tests/qemu-iotests/qcow2_format.py
@@ -248,6 +248,15 @@ class Qcow2BitmapTable:
         return dict(entries=self.entries)
 
 
+class Qcow2HeaderExtensionsDoc:
+
+    def __init__(self, extensions):
+        self.extensions = extensions
+
+    def to_dict(self):
+        return dict(Header_extensions=self.extensions)
+
+
 QCOW2_EXT_MAGIC_BITMAPS = 0x23852875
 
 
-- 
1.8.3.1