fix(test_vhdutil): mock getBlockSize

Signed-off-by: Mathieu Labourier <[email protected]>

Author: Millefeuille42

tests/test_vhdutil.py

@@ -413,7 +413,12 @@ def test_function(args, inp):
         context.add_executable(VHD_UTIL, test_function)
 
         # Act
-        result = vhdutil.getAllocatedSize(TEST_VHD_NAME)
+        result = 0
+        with unittest.mock.patch(
+                "vhdutil.getBlockSize",
+                return_value=vhdutil.VHD_BLOCK_SIZE
+        ):
+            result = vhdutil.getAllocatedSize(TEST_VHD_NAME)
 
         # Assert
         self.assertEqual(18856*2*1024*1024, result)