twister: allowlist build_info.yml and zephyr.dts

These files can be useful to troubleshoot a test that's failing,
and they're really small, too.

Signed-off-by: Benjamin Cabé <[email protected]>

Author: kartben

scripts/pylib/twister/twisterlib/runner.py

@@ -1313,6 +1313,8 @@ def cleanup_artifacts(self, additional_keep: list[str] = None):
             'recording.csv',
             'rom.json',
             'ram.json',
+            'build_info.yml',
+            'zephyr/zephyr.dts',
             # below ones are needed to make --test-only work as well
             'Makefile',
             'CMakeCache.txt',

scripts/tests/twister_blackbox/test_outfile.py

@@ -102,8 +102,8 @@ def test_runtime_artifact_cleanup(self, out_path):
         zephyr_listdir = os.listdir(os.path.join(sample_path, 'zephyr'))
 
         expected_contents = ['CMakeFiles', 'handler.log', 'build.ninja', 'CMakeCache.txt',
-                             'zephyr', 'build.log']
-        expected_zephyr_contents = ['.config']
+                             'zephyr', 'build.log', 'build_info.yml']
+        expected_zephyr_contents = ['.config', 'zephyr.dts']
 
         assert all([content in expected_zephyr_contents for content in zephyr_listdir]), \
                'Cleaned zephyr directory has unexpected files.'