public void MemberWithConverterType_IsColumnMember()
{
var config = new ConversionConfiguration();
config.AddConvertor(new ValueConverter <Id <SingleProperty>, int>(model => model.Value, provider => (Id <SingleProperty>)provider));
var searcher = new GraphSearcher(config);
var graph = searcher.SearchGraph(typeof(SingleProperty));
graph.Nodes.Should().ContainSingle()
.Which.ColumnMembers.Should().ContainSingle(x => x.Name == nameof(SingleProperty.Id) && ((PropertyInfo)x).PropertyType == typeof(Id <SingleProperty>));
}
public void PrimitiveTypeAsRoot_WillBeEmptyGraph()
{
var primitiveType = typeof(int);
var config = new ConversionConfiguration
{
IsAllowedForColumn = x => x == primitiveType,
};
var searcher = new GraphSearcher(config);
var graph = searcher.SearchGraph(primitiveType);
graph.Nodes.Should().BeEmpty();
}
public void CyclicGraphs_DontCauseEndlessRecursion()
{
var primitiveType = typeof(int);
var config = new ConversionConfiguration
{
IsAllowedForColumn = x => false,
ShouldMediateTargetProperty = x => true,
};
var searcher = new GraphSearcher(config);
var graph = searcher.SearchGraph(typeof(CycleLink1));
graph.Nodes.Select(_ => _.Type).Should().Contain(new[] { typeof(CycleLink1), typeof(CycleLink2) });
}
public void SelectWithMultiplePropertyChain_IsProperlyMaterialized()
{
using (var connection = new SQLiteConnection("data source=:memory:"))
{
connection.Open();
using (var ctx = new OrderContext(connection))
{
var order = new Order
{
Items = new List <OrderItem>
{
new OrderItem
{
Product = new Product {
Name = "Diapers", Cost = 10.0m
},
Quantity = 5,
},
new OrderItem
{
Product = new Product {
Name = "Baby formula", Cost = 50m
},
Quantity = 3,
},
},
};
ctx.Orders.Add(order);
ctx.SaveChanges();
var config = new ConversionConfiguration()
{
IsAllowedForColumn = x => x.IsValueType || x == typeof(string),
};
var searcher = new GraphSearcher(config);
var graph = searcher.SearchGraph(typeof(B));
var mediatorMapper = new MediatorTypeBuilder().CreateMediatorTypes(graph);
var result = ctx.OrderItems.ProjectToList(
x => new B
{
ProductCost = x.Product.Cost,
},
mediatorMapper);
result.Select(x => x.ProductCost).Should().BeEquivalentTo(10m, 50m);
}
}
}
public void PropertiesMaterializedFromDbColumnAreAlwaysAllowed()
{
var originType = typeof(Outer);
var primitiveType = new Outer().Primitive.GetType();
var config = new ConversionConfiguration
{
IsAllowedForColumn = x => x == primitiveType,
ShouldMediateTargetProperty = x => false,
};
var searcher = new GraphSearcher(config);
var graph = searcher.SearchGraph(originType);
graph.Nodes.Should().ContainSingle()
.Which.Type.Should().Be(originType);
graph.Nodes.Single().ColumnMembers
.Should().Equal(typeof(Outer).GetProperty(nameof(Outer.Primitive)));
}
private void AssertTargetToMediator <TParameter, TResult>(
Expression <Func <TParameter, TResult> > projection,
string resultTargetToMediator)
{
var config = new ConversionConfiguration()
{
IsAllowedForColumn = x => x.IsValueType || x == typeof(string),
};
var searcher = new GraphSearcher(config);
var graph = searcher.SearchGraph(typeof(TResult));
var mediatorMapper = new MediatorTypeBuilder().CreateMediatorTypes(graph);
var targetToMediatorVisitor = new TargetToMediatorVisitor(mediatorMapper);
var result = targetToMediatorVisitor.Visit(projection);
result.ToString("C#").Should().Be(resultTargetToMediator.Trim());
}
public void GraphHasMultipleLevels_AllAreFound()
{
var originType = typeof(Outer);
var config = new ConversionConfiguration
{
IsAllowedForColumn = x => x.IsPrimitive,
ShouldMediateTargetProperty = x => true,
};
var searcher = new GraphSearcher(config);
var graph = searcher.SearchGraph(originType);
graph.Nodes.Select(x => x.Type).Should().BeEquivalentTo(typeof(Outer), typeof(Inner), typeof(Innermost));
var outerNode = graph.Nodes.Single(x => x.Type == typeof(Outer));
var innerNode = graph.Nodes.Single(x => x.Type == typeof(Inner));
var innermostNode = graph.Nodes.Single(x => x.Type == typeof(Innermost));
graph.Edges.Should().BeEquivalentTo(
new Edge(outerNode, innerNode, typeof(Outer).GetProperty(nameof(Outer.Inner))),
new Edge(innerNode, innermostNode, typeof(Inner).GetProperty(nameof(Inner.Innermost))));
}