From b29b8b4b9cfe744e48b479c3a50b8717a3d195d0 Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Thu, 21 May 2026 12:09:33 +0000
Subject: [PATCH] cmdtest.py: new `--dev-mode` option

---
 test/cmdtest.py                   | 2 ++
 test/cmdtest_d/include/pexpect.py | 3 ++-
 test/cmdtest_d/include/runner.py  | 9 +++++++--
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/test/cmdtest.py b/test/cmdtest.py
index 92574ca9..c8dfd3d5 100755
--- a/test/cmdtest.py
+++ b/test/cmdtest.py
@@ -122,6 +122,8 @@ opts_data = {
 -x, --debug-pexpect  Produce debugging output for pexpect calls
 --, --demo           Add extra delay after each send to make input visible.
                      Implies --exact-output --pexpect-spawn --buf-keypress
+--, --dev-mode       Run spawned scripts in Python Development Mode
+                     (PYTHONDEVMODE=1 PYTHONTRACEMALLOC=10)
 -d, --deps-only      Run a command or command subgroup’s dependencies without
                      running the command or command group itself.
 -D, --no-daemon-stop Don't stop auto-started daemons after running tests
diff --git a/test/cmdtest_d/include/pexpect.py b/test/cmdtest_d/include/pexpect.py
index 32c08aec..ea9ba5a2 100755
--- a/test/cmdtest_d/include/pexpect.py
+++ b/test/cmdtest_d/include/pexpect.py
@@ -67,7 +67,8 @@ class CmdTestPexpect:
 			timeout = int(
 				timeout
 				or cfg.pexpect_timeout
-				or cfg.test_suite_pexpect_timeout) or (60, 5)[bool(cfg.debug_pexpect)]
+				or cfg.test_suite_pexpect_timeout) or (
+					5 if cfg.debug_pexpect else 180 if cfg.dev_mode else 60)
 			if pexpect_spawn:
 				self.p = pexpect.spawn(args[0], args[1:], encoding='utf8', timeout=timeout, env=spawn_env)
 			else:
diff --git a/test/cmdtest_d/include/runner.py b/test/cmdtest_d/include/runner.py
index 86a69068..06d6ffae 100755
--- a/test/cmdtest_d/include/runner.py
+++ b/test/cmdtest_d/include/runner.py
@@ -105,14 +105,19 @@ class CmdTestRunner:
 	def set_spawn_env(self):
 
 		self.spawn_env = dict(os.environ)
+
 		self.spawn_env.update({
 			'MMGEN_NO_LICENSE': '1',
 			'MMGEN_BOGUS_SEND': '1',
 			'MMGEN_TEST_SUITE_PEXPECT': '1',
 			'EXEC_WRAPPER_DO_RUNTIME_MSG':'1',
 			# if cmdtest.py itself is running under exec_wrapper, disable writing of traceback file for spawned script
-			'EXEC_WRAPPER_TRACEBACK': '' if os.getenv('MMGEN_EXEC_WRAPPER') else '1',
-		})
+			'EXEC_WRAPPER_TRACEBACK': '' if os.getenv('MMGEN_EXEC_WRAPPER') else '1'})
+
+		if self.cfg.dev_mode:
+			self.spawn_env.update({
+				'PYTHONDEVMODE': '1',
+				'PYTHONTRACEMALLOC': '10'})
 
 		if self.cfg.exact_output:
 			from mmgen.term import get_terminal_size