big

movement/tests/test_fsm_runner.gd

@@ -33,6 +33,7 @@ func run_all() -> void:
 	var tests := [
 		"test_states_register_and_initialize",
 		"test_do_jump_sets_velocity_and_counters",
+		"test_double_jump_emits_jet_event",
 		"test_wall_run_preserves_fast_entry_speed",
 		"test_wall_run_entry_keeps_some_upward_momentum",
 		"test_dash_cooldown_is_per_machine",
@@ -127,6 +128,20 @@ func test_do_jump_sets_velocity_and_counters() -> void:
 	_expect(not sm.on_ground, "no longer grounded")
 
 
+func test_double_jump_emits_jet_event() -> void:
+	var events := []
+	sm.movement_event.connect(func(ev, data): events.append([ev, data]))
+	sm.switch_to("air")
+	sm.current_jump_count = 1
+	sm.jump_cooldown_timer = 0.0
+	sm.input_jump_just_pressed = true
+	sm.states["air"].update(0.016)
+	_expect(fake_player.velocity.y == params.double_jump_velocity,
+		"double jump sets its own vertical impulse")
+	_expect(events.any(func(item): return item[0] == "double_jump"),
+		"double jump emits the replicated jet event")
+
+
 func test_wall_run_preserves_fast_entry_speed() -> void:
 	# Enter a wall run at 20 m/s along the wall; speed must not drop to base.
 	sm.wall_normal = Vector3.RIGHT