public void PropertyVisitor_WithMixedAdapters_CanIterate()
{
var container = new MixedContainer();
var visitor = new TestVisitor("");
visitor.AddAdapter(new MixedContravariantAdapter(visitor));
visitor.AddAdapter(new MixedAdapter(visitor));
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(), Is.EqualTo("AA"));
}
public void PropertyVisitor_WithInertAdapter_ContinuesAsExpected()
{
var container = new Container();
var visitor = new TestVisitor("");
visitor.AddAdapter(new MixedContravariantAdapter(visitor));
visitor.AddAdapter(new MixedAdapter(visitor));
visitor.AddAdapter(new MultiAdapter(visitor));
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(), Is.EqualTo("IVisit<Container, int>"));
}
public void PropertyVisitor_WhenCallingMultipleAdapters_RespectVisitation(bool withAdapters)
{
for (var count = 0; count < 10; ++count)
{
var container = new Container();
var visitor = new TestVisitor("1");
visitor.AddAdapter(new MultiContinueAdapter(visitor, count, withAdapters));
visitor.AddAdapter(new MessageAdapter(visitor, "0"));
PropertyContainer.Accept(visitor, ref container);
var result = withAdapters ? new string('0', count) : new string('1', count);
Assert.That(visitor.ToString(), Is.EqualTo(result));
}
}
public void PropertyVisitor_WhenChainingAdapters_RespectVisitation(int count, params VisitStatus[] statuses)
{
var container = new Container();
var expectedHasDefault = true;
foreach (var status in statuses)
{
if (status == VisitStatus.Stop)
{
expectedHasDefault = false;
break;
}
if (status == VisitStatus.Handled)
{
break;
}
}
var visitor = new TestVisitor(expectedHasDefault ? "0" : "");
foreach (var status in statuses)
{
visitor.AddAdapter(new ChainedAdapter(visitor, status));
}
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(), Is.EqualTo(new string('0', count)));
}
public void PropertyVisitor_WithContravariantAdapters_CallsMostTyped()
{
var container = new ContainerWithInterface();
var visitor = new TestVisitor("");
visitor.AddAdapter(new ContravariantAdapter(visitor));
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(), Is.EqualTo("ABA"));
}
public void PropertyVisitor_WithExcludeAdapter_StopsVisitationWhenRequired()
{
var container = new ExcludeContainer();
var visitor = new TestVisitor("X");
visitor.AddAdapter(new ExcludeAdapter(visitor));
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(), Does.Not.Contain("int"));
Assert.That(visitor.ToString(), Does.Contain("float"));
}
public void PropertyVisitor_WithWrappingAdapter_CallsAdapterAndDefault()
{
var container = new Container();
var visitor = new TestVisitor("Failure is inevitable");
visitor.AddAdapter(new WrappingAdapter(visitor));
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(),
Is.EqualTo("This sentence: \"Failure is inevitable\" is simply not true"));
}
public void PropertyVisitor_WithMultiAdapter_CallsMostTypedAdapter()
{
var container = new Container();
var visitor = new TestVisitor("Failure");
visitor.AddAdapter(new MultiAdapter(visitor));
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(), Is.EqualTo("IVisit<Container, int>"));
visitor.Reset();
PropertyContainer.Accept(visitor, ref container);
Assert.That(visitor.ToString(), Is.EqualTo("IVisit<Container, int>"));
}
