tests: checkout: sleep(1) to emulate realistic behavior

Signed-off-by: Ruslan Kuprieiev <[email protected]>

tests/test_checkout.py

@@ -1,4 +1,5 @@
 import os
+import time
 import stat
 import shutil
 import filecmp
@@ -30,6 +31,8 @@ class TestCheckoutCorruptedCacheFile(TestRepro):
     def test(self):
         cache = self.foo_stage.outs[0].cache
 
+        time.sleep(1)
+
         os.chmod(cache, stat.S_IWRITE)
         with open(cache, 'a') as fd:
             fd.write('1')