public void TestError()
{
ControlStack stack = new ControlStack();
Assert.Throws<InvalidOperationException>(() => stack.Pop());
stack.Push(false);
stack.Pop();
Assert.Throws<InvalidOperationException>(() => stack.Pop());
}
public void TestClear()
{
ControlStack stack = new ControlStack();
stack.Push(false);
stack.Push(true);
stack.Clear();
Assert.True(stack.IsEmpty);
Assert.True(stack.ExecuteBranch);
}