/// <summary>Tries to retrieve subjects from the backing RDF source for a dynamically resolved property.</summary>
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
_entity.EnsureIsInitialized();
var propertySpec = new DynamicPropertyAggregate(binder.Name);
if (!propertySpec.IsValid)
{
result = null;
return(false);
}
var property = Ontology.Properties.SingleOrDefault(p => p.Name == propertySpec.Name);
if (property == null)
{
property = new Property(propertySpec.Name).InOntology(Ontology);
}
result = GetObjects(_entity.Id, property, propertySpec);
if (propertySpec.IsList)
{
var graphOverride = new UnionGraphSelector();
var head = (IRdfListNode <object>) typeof(EntityExtensions).GetTypeInfo()
.GetMethod("AsEntity")
.MakeGenericMethod(typeof(IRdfListNode <object>))
.Invoke(null, new[] { result });
((IEntityProxy)head.UnwrapProxy()).OverrideGraphSelection(graphOverride);
var rdfListAdapter = new RdfListAdapter <IRdfListOwner, IRdfListNode <object>, object>(_entity.Context, _entity, head, graphOverride);
result = new ReadOnlyCollection <dynamic>(rdfListAdapter);
}
return(true);
}
public void Empty_list_should_have_count_zero()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override);
// then
list.Count.Should().Be(0);
}
public void Should_calculate_count_for_new_list()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 5, 6, 7, 8
};
// then
list.Count.Should().Be(5);
}
public void Should_throw_when_inserting_to_invalid_index([Values(-1, 5, 100)] int index)
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 41, 666
};
// then
list.Invoking(l => l.Insert(index, 10))
.ShouldThrow <ArgumentOutOfRangeException>();
}
public void Should_throw_when_getting_elements_by_invalid_index([Values(-1, 4, 666)] int index)
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 41, 666
};
// then
list.Invoking(l => { var i = l[index]; })
.ShouldThrow <ArgumentOutOfRangeException>();
}
public void Should_initialize_with_type_initializer_in_correct_order()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 41, 666
};
// then
list.Should().ContainInOrder(4, 8, 41, 666);
_contextMock.Verify(c => c.Create <IRdfListNode <int> >(It.IsAny <BlankId>()), Times.Exactly(4));
}
public void Should_allow_adding_elements()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override);
// when
list.Add(4);
list.Add(8);
// then
list.Count.Should().Be(2);
_contextMock.Verify(c => c.Create <IRdfListNode <int> >(It.IsAny <BlankId>()), Times.Exactly(2));
}
public void Should_allow_getting_elements_by_index()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8
};
// then
list[0].Should().Be(4);
list[1].Should().Be(8);
_contextMock.Verify(c => c.Create <IRdfListNode <int> >(It.IsAny <BlankId>()), Times.Exactly(2));
}
public void Should_allow_checking_item_existence(int item, bool expectedResult)
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 8, 41, 666
};
// when
var contains = list.Contains(item);
// then
contains.Should().Be(expectedResult);
}
public void Should_allow_removing_last_element()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
666
};
// when
list.Remove(666);
// then
list.Should().BeEmpty();
}
public void Should_update_count_when_cleared()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 5, 6, 7, 8
};
// then
list.Clear();
// then
list.Count.Should().Be(0);
}
public void Should_update_count_when_adding_elements()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 5, 6, 7, 8
};
// then
list.Add(10);
// then
list.Count.Should().Be(6);
}
public void Should_allow_removing_elements_by_index(int index, int[] expectedResultCollection)
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 8, 41, 666
};
// when
list.RemoveAt(index);
// then
list.Should().ContainInOrder(expectedResultCollection);
_contextMock.Verify(c => c.Delete(It.IsAny <BlankId>()), Times.Exactly(1));
}
public void Should_allow_clearing_entire_list()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 8, 41, 666
};
// when
list.Clear();
// then
list.Should().BeEmpty();
_contextMock.Verify(c => c.Delete(It.IsAny <BlankId>()), Times.Exactly(5));
}
public void Removing_last_element_and_adding_new_to_end_should_keep_list_linked()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 8, 41, 666
};
// when
list.Remove(666);
list.Add(1337);
// then
list.Should().ContainInOrder(4, 8, 8, 41, 1337);
}
public void Should_allow_inserting_elements_at_index_with_indexer(int index, int[] expectedCollection)
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 41, 666
};
// when
list[index] = 5;
// then
list.Count.Should().Be(5);
list.Should().ContainInOrder(expectedCollection);
_contextMock.Verify(c => c.Create <IRdfListNode <int> >(It.IsAny <BlankId>()), Times.Exactly(5));
}
public void Should_allow_removing_last_elements_and_add_new_afterwards()
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
666
};
// when
list.Remove(666);
list.Add(1337);
list.Add(999);
// then
list.Should().ContainInOrder(1337, 999);
}
public void Should_allow_removing_elements(int elementToRemove, int[] expectedResultCollection, bool expectedReturnValue)
{
// given
var list = new RdfListAdapter <IRdfListOwner, IRdfListNode <int>, int>(_context, _entity.Object, _override)
{
4, 8, 8, 41, 666
};
// when
var removeResult = list.Remove(elementToRemove);
// then
list.Should().ContainInOrder(expectedResultCollection);
removeResult.Should().Be(expectedReturnValue);
if (expectedReturnValue)
{
_contextMock.Verify(c => c.Delete(It.IsAny <BlankId>()), Times.Once);
}
else
{
_contextMock.Verify(c => c.Delete(It.IsAny <BlankId>()), Times.Never);
}
}
