public void find_concrete_type_for_a_type_that_is_marked_with_default_constructor()
{
var pluginGraph = new PluginGraph();
var objectGraph = new ObjectGraph(typeof (ClassMarkedWithDefaultConstructor));
pluginGraph.InitializeConcreteType(objectGraph);
// Should choose the no arg constructor
objectGraph.ConcreteType.Constructor.GetParameters().Any().ShouldBeFalse();
}
public ObjectGraphBuilder(ObjectGraph graph, PluginGraph pluginGraph)
{
_graph = graph;
_builder = new Lazy<IInstanceBuilder>(() =>
{
graph.InitializeConcreteType(pluginGraph);
// Move this to pluginGraph. IBuilderCompiler may need to be pluggable later
return BuilderCompiler.CreateBuilder(graph.ConcreteType);
});
}
public void use_the_constructor_selector_to_build_a_concrete_type()
{
var theCtor = GetType().GetConstructors().First();
var selector = MockRepository.GenerateMock<IConstructorSelector>();
var pluginGraph = new PluginGraph{
ConstructorSelector = selector
};
var objectGraph = new ObjectGraph(GetType());
selector.Stub(x => x.Select(objectGraph, pluginGraph)).Return(theCtor);
pluginGraph.InitializeConcreteType(objectGraph);
objectGraph.ConcreteType.Constructor.ShouldBeTheSameAs(theCtor);
}
public void build_the_object()
{
var objectGraph = new ObjectGraph<ClassWithMultipleCtorArguments>();
objectGraph.ByType[typeof (Color)] = "Red";
objectGraph.ByName["name"] = "Jeremy";
objectGraph.ByType[typeof (int)] = "36";
objectGraph.ByName["day"] = DateTime.Today;
var pipeline = new PipelineContext();
var pluginGraph = new PluginGraph();
var builder = new ObjectGraphBuilder(objectGraph, pluginGraph);
var pluginType = pluginGraph.PluginTypeFor(typeof (ClassWithMultipleCtorArguments));
var target = builder.Build(pluginType, pipeline).ShouldBeOfType<ClassWithMultipleCtorArguments>();
target.Color.ShouldEqual(Color.Red);
target.Name.ShouldEqual("Jeremy");
target.Age.ShouldEqual(36);
target.Day.ShouldEqual(DateTime.Today);
}
public ConstructorInfo Select(IObjectGraph objectGraph, PluginGraph pluginGraph)
{
return
objectGraph.ConcreteType.Type.GetConstructors().OrderByDescending(x => x.GetParameters().Count()).
FirstOrDefault();
}