From 5e965618beb24927091a897e9cc81241d22d89ad Mon Sep 17 00:00:00 2001
From: Andrew Leech <andrew.leech@planetinnovation.com.au>
Date: Wed, 18 Jun 2025 07:21:36 +1000
Subject: [PATCH] tests/run-tests.py: Add support for ctrl keys in REPL tests.

This allows having {\xDD} in tests, which will be expanded to the given
hex character.

Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>
---
 tests/run-tests.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/run-tests.py b/tests/run-tests.py
index 5eebc7246..628fde9d3 100755
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -405,6 +405,10 @@ def run_micropython(pyb, args, test_file, test_file_abspath, is_special=False):
                                     return rv
 
                     def send_get(what):
+                        # Detect {\x00} pattern and convert to ctrl-key codes.
+                        ctrl_code = lambda m: bytes([int(m.group(1))])
+                        what = re.sub(rb'{\\x(\d\d)}', ctrl_code, what)
+
                         os.write(master, what)
                         return get()