feat: 接入双臂 MuJoCo 启动模式

xr_rm_bringup/test/test_arm_debug_launch.py

@@ -0,0 +1,37 @@
+import importlib.util
+from pathlib import Path
+
+import pytest
+from launch import LaunchContext
+from launch.actions import DeclareLaunchArgument
+from launch.utilities import perform_substitutions
+
+
+MODULE_PATH = Path(__file__).parents[1] / "launch" / "arm_debug.launch.py"
+SPEC = importlib.util.spec_from_file_location("arm_debug_launch", MODULE_PATH)
+arm_debug_launch = importlib.util.module_from_spec(SPEC)
+assert SPEC.loader is not None
+SPEC.loader.exec_module(arm_debug_launch)
+
+
+def test_launch_declares_mujoco_disabled_by_default() -> None:
+    description = arm_debug_launch.generate_launch_description()
+    arguments = {
+        entity.name: entity
+        for entity in description.entities
+        if isinstance(entity, DeclareLaunchArgument)
+    }
+
+    assert "use_mujoco" in arguments
+    assert perform_substitutions(
+        LaunchContext(),
+        arguments["use_mujoco"].default_value,
+    ) == "false"
+
+
+def test_mujoco_mode_requires_both_arms() -> None:
+    arm_debug_launch._validate_mujoco_mode("both", True)
+    arm_debug_launch._validate_mujoco_mode("left", False)
+
+    with pytest.raises(ValueError, match="arm:=both"):
+        arm_debug_launch._validate_mujoco_mode("left", True)