Write to the file in chunks to avoid MemoryError

tests/integration/test_fim/test_basic_usage/test_basic_usage_access_opened_files.py

@@ -3,6 +3,8 @@
 # This program is free software; you can redistribute it and/or modify it under the terms of GPLv2
 
 import os
+import random
+import string
 
 import pytest
 
@@ -50,14 +52,17 @@ def create_and_restore_large_file(request):
  if not os.path.exists(testdir1):
  os.mkdir(testdir1)
 
+ file_size = 1024 * 1024 * 768 # 805 MB
+ chunksize = 1024 * 768
  file_path = os.path.join(testdir1, 'large_file')
  changed_path = os.path.join(testdir1, 'changed_name')
 
  if os.path.exists(changed_path):
  os.rename(changed_path, file_path)
  elif not os.path.exists(file_path):
  with open(file_path, "a") as f:
- f.write('a' * 1024 * 1024 * 768) # 805 MB
+ while os.stat(file_path).st_size < file_size:
+ f.write(random.choice(string.printable) * chunksize)
 
 # Tests