Pass input test name to inwer (#22)

* Pass input test's name to inwer

* Fix tests

* Add inwer tests for passing test name as an argument

* Check if 'in_file_name' exists in environ

sio/executors/inwer.py

@@ -33,6 +33,8 @@ def _run_in_executor(environ, command, executor, **kwargs):
 
 def _run_inwer(environ, use_sandboxes=False):
     command = [tempcwd('inwer')]
+    if 'in_file_name' in environ:
+        command.append(environ['in_file_name'])
     if use_sandboxes:
         executor = SupervisedExecutor()
     else:
@@ -49,6 +51,9 @@ 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

sio/workers/test/sources/inwer_argument.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+int main(int argc, char *argv[]) {
+    if (argc != 2) {
+        printf("WRONG\nWrong number of arguments");
+        return 1;
+    }
+    if (strcmp(argv[1], "inwer_ok") != 0) {
+        printf("WRONG\nWrong test name");
+        return 1;
+    }
+    printf("OK\n");
+    return 0;
+}

sio/workers/test/test_executors.py

@@ -436,6 +436,8 @@ def inner(env):
         yield '/inwer_big_output.c', '/inwer_ok', use_sandboxes, check_inwer_big_output(
             use_sandboxes
         )
+        yield '/inwer_argument.c', '/inwer_ok', use_sandboxes, check_inwer_ok
+        yield '/inwer_argument.c', '/inwer_wrong', use_sandboxes, check_inwer_wrong
 
 
 @pytest.mark.parametrize(
@@ -449,6 +451,7 @@ def test_inwer(inwer, in_file, use_sandboxes, callback):
     with TemporaryCwd():
         env = {
             'in_file': in_file,
+            'in_file_name': os.path.basename(in_file),
             'exe_file': inwer_bin,
             'use_sandboxes': use_sandboxes,
             'inwer_output_limit': SMALL_OUTPUT_LIMIT,