native runner

test/test_custom_runner.py

@@ -0,0 +1,17 @@
+# PlatformIO custom test runner for the host "native" environment.
+#
+# test_codec.c is a plain C program with its own main() that prints results and
+# returns a non-zero exit code if any check fails. The "custom" test framework
+# (set in platformio.ini) means PlatformIO does NOT inject Unity's main/runner;
+# it just builds and runs our program and reports failure on a non-zero exit.
+# This minimal subclass is all that's needed to wire that up.
+#
+#     pio test -e native
+#
+# SPDX-License-Identifier: MIT
+
+from platformio.public import TestRunnerBase
+
+
+class CustomTestRunner(TestRunnerBase):
+    pass