## Smoke tests for main scene initialization
## Run with: godot4 --headless --path . -s res://addons/gdUnit4/bin/GdUnitCmdTool.gd --ignoreHeadlessMode -a res://tests/
class_name TestMainScene
extends GdUnitTestSuite

# Smoke test: main scene loads without errors
func test_main_scene_loads() -> void:
	var scene = load("res://scenes/main.tscn")
	assert_that(scene).is_not_null()

	var instance = scene.instantiate()
	assert_that(instance).is_not_null()

	# Add to scene tree briefly to trigger _ready()
	auto_free(instance)
	add_child(instance)

	# Verify key nodes exist
	assert_that(instance.get_node("World")).is_not_null()
	assert_that(instance.get_node("Camera2D")).is_not_null()
	assert_that(instance.get_node("UILayer")).is_not_null()

# Test: autoloads exist
func test_autoloads_registered() -> void:
	assert_that(SimBridge).is_not_null()
	assert_that(GameState).is_not_null()
	assert_that(InputMapper).is_not_null()