Add files for stdout and stderr

typon/trans/test_runner.py

@@ -55,14 +55,14 @@ class TestStatus(enum.Enum):
         return color("{:^7s}".format(msg))
 
 def exec_cmd(cmd, quiet):
-    stdout = subprocess.DEVNULL if quiet else None
-    stderr = subprocess.DEVNULL if quiet else None
+    stdout = subprocess.DEVNULL if quiet else sys.stdout
+    stderr = subprocess.DEVNULL if quiet else sys.stderr
     return subprocess.run(cmd, shell=True, stdout=stdout, stderr=stderr).returncode
 
 def run_test(path, quiet=True):
     if quiet:
-        sys.stdout = open(os.devnull, 'w')
-        sys.stderr = open(os.devnull, 'w')
+        sys.stdout = open(path.with_suffix(".out"), 'w')
+        sys.stderr = open(path.with_suffix(".err"), 'w')
     if args.only and path.stem not in args.only:
         return TestStatus.SKIPPED
     print(path.name)

typon/trans/tests/.gitignore

@@ -2,3 +2,5 @@
 !/**/
 !*.*
 *.cpp
+*.err
+*.out