Dynamic load only SUT implementations

Signed-off-by: Andrea Cervesato <[email protected]>

Author: acerv

ltp/main.py

@@ -134,7 +134,15 @@ def _discover_sut(folder: str) -> list:
                 continue
 
             if issubclass(klass, SUT):
-                LOADED_SUT.append(klass())
+                obj = klass()
+                try:
+                    # pylint: disable=pointless-statement
+                    obj.name
+                    obj.config_help
+                except NotImplementedError:
+                    continue
+
+                LOADED_SUT.append(obj)
 
     if len(LOADED_SUT) > 0:
         LOADED_SUT.sort(key=lambda x: x.name)

ltp/tests/test_main.py

@@ -70,6 +70,9 @@ def test_sut_plugins(self, tmpdir):
                 "    @property\n"
                 "    def name(self) -> str:\n"
                 f"        return 'mysut{index}'\n"
+                "    @property\n"
+                "    def config_help(self) -> dict:\n"
+                "        return  {'myhelp': 'help'}\n"
             )
 
         ltp.main._discover_sut(str(tmpdir))