public void IntersectionSet_ValidInput_ReturnsCorrectSet(Set left, Set right, Set exp)
{
IInterpreterSet parent = Substitute.For <IInterpreterSet>();
SetHelper setHelper = SetUpHelper(parent);
SetExpression leftExpr = new SetExpression(null, null, null, 0, 0);
SetExpression rightExpr = new SetExpression(null, null, null, 0, 0);
IntersectionExpression intersectionExpr = new IntersectionExpression(leftExpr, rightExpr, 0, 0);
parent.DispatchSet(leftExpr, Arg.Any <List <object> >()).Returns(left);
parent.DispatchSet(rightExpr, Arg.Any <List <object> >()).Returns(right);
Set result = setHelper.IntersectionSet(intersectionExpr, new List <object>());
result.Should().BeEquivalentTo(exp);
}
