require 'ruby2d' RSpec.describe Ruby2D::Sprite do describe '#new' do it "raises exception if file doesn't exist" do expect { Sprite.new(0, 0, "bad_sprite_sheet.png") }.to raise_error(Ruby2D::Error) end it 'creates a new sprite' do Sprite.new(0, 0, "test/media/sprite_sheet.png") end end end