Поддержать MAME.HT/sprinter в SDK и документации

tests/sdbg/test_launcher.py

@@ -8,9 +8,25 @@ import xml.etree.ElementTree as ET
 ROOT = Path(__file__).resolve().parents[2]
 sys.path.insert(0, str(ROOT / 'toolchain'))
 from sdbg_launcher import disk_entries, lua_script, write_keyboard_config
+from mame_profile import MameProfile
 
 
 class LauncherTests(unittest.TestCase):
+    def test_mame_profile_prefers_sprinter_and_keeps_legacy_binary(self):
+        with tempfile.TemporaryDirectory() as directory:
+            home = Path(directory).resolve()
+            legacy = home / 'mame.arm'
+            legacy.touch()
+            self.assertEqual(MameProfile.resolve({'MAME_HOME': directory,
+                                                  'MAME_BIN': ''}).binary, legacy)
+            modern = home / 'sprinter'
+            modern.touch()
+            self.assertEqual(MameProfile.resolve({'MAME_HOME': directory,
+                                                  'MAME_BIN': ''}).binary, modern)
+            self.assertEqual(MameProfile.resolve({'MAME_HOME': directory,
+                                                  'MAME_BIN': str(legacy)}).binary,
+                             legacy)
+
     def test_lua_tables_have_expected_shape(self):
         with tempfile.TemporaryDirectory() as directory:
             path = Path(directory) / 'launch.lua'