public void VisitListNewInstruction_CreatesNewListOnTopOfValueStack()
{
var testVmContext = new TestVmContext();
var sut = new RuntimeVisitor(testVmContext);
sut.VisitList(new ListNewInstruction());
Assert.Single(testVmContext.ValueStack);
var topValue = testVmContext.ValueStack.Pop();
Assert.IsType <List <object> >(topValue);
var theList = (List <object>)topValue;
Assert.Empty(theList);
}
public void VisitListAddInstruction_AddsObjectToListInValueStack()
{
var testVmContext = new TestVmContext();
testVmContext.ValueStack.Push(new List <object>());
testVmContext.ValueStack.Push(42);
var sut = new RuntimeVisitor(testVmContext);
sut.VisitList(new ListAddInstruction());
Assert.Single(testVmContext.ValueStack);
var topValue = testVmContext.ValueStack.Pop();
Assert.IsType <List <object> >(topValue);
var theList = (List <object>)topValue;
Assert.Single(theList);
Assert.Equal(42, theList[0]);
}
