public virtual Maybe <TExodata> TryResolve <TContext, TSubject>(Maybe <TContext> context, Maybe <TSubject> subject, MemberInfo member)
{
return(ExodataResolver
.ToMaybe()
.Or(Ioc.TryResolve <IExodataResolver>)
.SelectMaybe(x => x.TryResolve(ExodataRequest.Create <TExodata, TContext, TSubject>(this, context, subject, member)))
.SelectMaybe(x => EnsureValid(x, "bound")));
}
public void TryResolve_WithNoBindings_ReturnsNoValue()
{
var symbol = new Symbol();
var source = new ExodataBindingModule();
var resolver = new ExodataResolver(new[] { source });
Maybe <int> value = resolver.TryResolve(ExodataRequest.Create <int, object, object>(symbol, Maybe <object> .NoValue, Maybe <object> .NoValue, null));
Assert.AreEqual(Maybe <int> .NoValue, value);
}
public void TryResolve_WithNonAmbiguousBindingSelection_YieldsValue()
{
var symbol = new Symbol();
var source = new ExodataBindingModule();
source.Bind(symbol, 42);
var resolver = new ExodataResolver(new[] { source });
Maybe <int> result = resolver.TryResolve(ExodataRequest.Create <int, object, object>(symbol, Maybe <object> .NoValue, Maybe <object> .NoValue, null));
Assert.AreEqual(42, result.Value);
}
public void TryResolve_WithAmbiguousBindingSelection_ThrowsAmbiguousExodataBindingsException()
{
var symbol = new Symbol();
var source = new ExodataBindingModule();
source.Bind(symbol, 42);
source.Bind(symbol, 42);
var resolver = new ExodataResolver(new[] { source });
Maybe <int> result = resolver.TryResolve(ExodataRequest.Create <int, object, object>(symbol, Maybe <object> .NoValue, Maybe <object> .NoValue, null));
var exception = Assert.Throws <AmbiguousExodataBindingsException>(() => { var x = result.HasValue; });
Assert.IsNotNull(exception);
Assert.AreEqual(2, exception.Bindings.Count());
}
