public void Pop_with_param_decrements_StackPointer_by_same_value()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
uut.Pop(2);
uut.StackPointer.Should().Be(0);
}
public void Peek_returns_the_top_item()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
var result = uut.Peek();
result.Should().BeNull();
}
public void Peek_with_param_returns_the_item_offset_from_StackPointer()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
var result = uut.Peek(-2);
result.Should().Be(Variable.One);
}
public void Pop_with_param_returns_the_correct_item()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
var result = uut.Pop(2);
result.Should().Be(Variable.One);
}
public void PeekAbsreturns_the_item_at_offset()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
var result = uut.PeekAbs(0);
result.Should().Be(Variable.One);
}
public void PeekBase_with_zero_returns_the_item_at_BasePointer()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
uut.BasePointer = 1;
var result = uut.PeekBase(0);
result.GetInteger().Should().Be(2);
}
public void PeekBase_returns_the_item_at_offset_from_BasePointer()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
uut.BasePointer = 1;
var result = uut.PeekBase(-1);
result.Should().Be(Variable.One);
}
public void PokeAbs_modifies_the_item_at_offset()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
uut.PokeAbs(1, 15);
var result = uut.PeekAbs(1);
result.GetInteger().Should().Be(15);
}
public void Poke_with_param_modifies_the_item_offset_from_StackPointer()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
uut.Poke(-2, 15);
var result = uut.Peek(-2);
result.GetInteger().Should().Be(15);
}
public void PokeBase_modifes_the_item_at_offset_from_BasePointer()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Push(2);
uut.BasePointer = 1;
uut.PokeBase(-1, 5);
var result = uut.PeekBase(-1);
result.GetInteger().Should().Be(5);
}
public void Push_Increments_StackPointer()
{
var uut = new ThreadStack();
uut.Push(Variable.Null);
uut.StackPointer.Should().Be(1);
}
public void Pop_decrements_StackPointer()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
uut.Pop();
uut.StackPointer.Should().Be(0);
}
public void Can_Pop_a_pushed_item()
{
var uut = new ThreadStack();
uut.Push(Variable.One);
var result = uut.Pop();
result.Should().Be(Variable.One);
}