Pin fake Frame data directory modes

tests/e2e/test_media_transfer.py

@@ -9,6 +9,7 @@ class Media(harness.FrameTestCase):
     def test_upload_and_list_without_launching_a_viewer(self):
         # The transfer endpoint doesn't decode. Rendering belongs to the real
         # headset smoke checks documented in docs/vr-video.md.
+        self.assertEqual(ssh('stat -c "%U:%G %a" ~/.local/share').strip(), 'steamos:steamos 755')
         result = ok('POST', '/api/upload', raw=b'fake-media', headers={
             'X-Mode': 'media', 'X-Filename': 'test_SBS.png'})
         identity = result['id']

tests/fakeframe/rootfs/usr/local/lib/fakeframe/init.py

@@ -237,6 +237,7 @@ def runtimes(state):
     for directory in (HOME + '/.local', HOME + '/.local/share'):
         os.makedirs(directory, mode=0o755, exist_ok=True)
         chown(directory)
+        os.chmod(directory, 0o755)
     apps = fs.STEAM_ROOT + '/steamapps'
     for alias, installed in state['runtimes'].items():
         acf = f'{apps}/appmanifest_{fs.RUNTIME_APPIDS[alias]}.acf'