Pass input test's name to inwer

sio/executors/inwer.py

@@ -32,7 +32,7 @@ def _run_in_executor(environ, command, executor, **kwargs):
 
 
 def _run_inwer(environ, use_sandboxes=False):
- command = [tempcwd('inwer')]
+ command = [tempcwd('inwer'), environ['in_file_name']]
  if use_sandboxes:
  executor = SupervisedExecutor()
  else:
@@ -49,6 +49,9 @@ def run(environ):
 
  ``in_file``: the file redirected to the program's stdin
 
+ ``in_file_name``: the name of the input file. It's passed to inwer as
+ the second argument.
+
  ``use_sandboxes``: if this key equals ``True``, the program is executed
  in the SupervisedExecutor, otherwise the UnsafeExecutor
  is used