public void BuildFlaten()
{
RollerCoasterMaker game = new RollerCoasterMaker();
for (int i = 0; i < 4; i++)
{
game.BuildUp();
}
for (int i = 0; i < 10; i++)
{
game.BuildStright();
}
game.BuildFlaten();
Assert.AreEqual(false, game.builder.lastBuildActionFail);
}