extends GutTest

const Scene = preload('res://Scenes/Terminal/OutputArea.tscn')
const GameOutput = preload('res://Scripts/Terminal/OutputArea.cs')

var _instance: GameOutput = null

func _get_line_container() -> VBoxContainer:
	return _instance.get_node('%LineContainer') as VBoxContainer

func after_each():
	await yield_frames(1).YIELD

func before_each():
	var scene = Scene.instantiate()
	scene.OutputBlockScene = preload('res://Scenes/Terminal/OutputBlock.tscn')
	_instance = add_child_autofree(scene)

func after_all():
	assert_no_new_orphans()

func test_can_be_instantiated():
	assert_not_null(_instance)

func test_LineContainer_is_empty_after_instantiation():
	assert_true(_get_line_container().get_children().is_empty())

func test_TextBlocks_is_empty_after_instantiation():
	assert_true(_instance.TextBlocks.is_empty())

func test_LineContainer_is_not_empty_after_calling_Push_with_a_non_empty_string_as_text():
	_instance.Push('this is some test data')
	assert_false(_get_line_container().get_children().is_empty())

func test_LineContainer_is_empty_after_calling_Push_with_an_empty_string_as_text():
	_instance.Push('')
	assert_true(_get_line_container().get_children().is_empty())

func test_TextBlocks_is_not_empty_after_calling_Push_with_a_non_empty_string_as_text():
	_instance.Push('this is some test data')
	assert_false(_instance.TextBlocks.is_empty())

func test_TextBlocks_is_empty_after_calling_Push_with_an_empty_string_as_text():
	_instance.Push('')
	assert_true(_instance.TextBlocks.is_empty())

func test_TextBlocks_contains_all_pushed_texts_in_the_push_order():
	var texts = ['text block a', 'text block b']
	for text in texts:
		_instance.Push(text)
	assert_eq(_instance.TextBlocks, texts)