Explicit named arguments with null value do not work #663
Description
I know StructureMap is sunsetted and this may not get fixed, but just in case someone has the same problem:
When adding explicit arguments either via ExplicitArguments on GetInstance<>(args) or defining them in the registry via .Ctor("name"), StructureMap thinks that the argument has not been defined at all. This actually used to work in 2.6.
Here are some test cases which all fail:
[Fact]
public void supply_named_arguments_null_ctor()
{
var container = new Container(x => { x.For<IWidget>().Use<ColorWidget>().Ctor<string>().Is(default(string)); });
container.With("color").EqualTo(null)
.GetInstance<IWidget>()
.ShouldBeOfType<ColorWidget>()
.Color.ShouldBeNull();
}
[Fact]
public void supply_named_arguments_null_arg1()
{
var container = new Container(x => { x.For<IWidget>().Use<ColorWidget>().Ctor<string>().Is("Red"); });
container.GetInstance<IWidget>()
.ShouldBeOfType<ColorWidget>()
.Color.ShouldBe("Red");
container.With("color").EqualTo(null)
.GetInstance<IWidget>()
.ShouldBeOfType<ColorWidget>()
.Color.ShouldBeNull();
}
[Fact]
public void supply_named_arguments_null_arg2()
{
var container = new Container(x => { x.For<IWidget>().Use<ColorWidget>().Ctor<string>().Is("Red"); });
container.GetInstance<IWidget>()
.ShouldBeOfType<ColorWidget>()
.Color.ShouldBe("Red");
var args = new ExplicitArguments();
args.SetArg("color", null);
container.GetInstance<IWidget>(args)
.ShouldBeOfType<ColorWidget>()
.Color.ShouldBeNull();
}I would expect these to be a valid setup, but the following error occurs in the first two:
StructureMap.StructureMapBuildPlanException : Unable to create a build plan for concrete type StructureMap.Testing.Acceptance.ColorWidget
new ColorWidget(String color)
┗ String color = Required primitive dependency is not explicitly defined
1.) Attempting to create a BuildPlan for Instance of StructureMap.Testing.Acceptance.IWidget (a7a59459-f11f-4554-9dec-6fd067bf1b83) -- StructureMap.Testing.Acceptance.ColorWidget ('a7a59459-f11f-4554-9dec-6fd067bf1b83')
2.) Container.GetInstance<StructureMap.Testing.Acceptance.IWidget>({color=})