public void Interface_Types_Are_Ignored()
{
var typeSource = new MockTypeSource(typeof(IInterfaceHandler1));
var collection = new ServiceCollection();
collection.AddCustomRequestHandlers(typeSource);
Assert.Empty(collection);
}
public void Interfaces_That_Does_Not_Implement_IRequestHandler_Are_Ignored()
{
var typeSource = new MockTypeSource(
typeof(NotRequestHandler));
var collection = new ServiceCollection();
collection.AddCustomRequestHandlers(typeSource);
Assert.Empty(collection);
}
public void Open_Generic_Types_Are_Ignored()
{
var typeSource = new MockTypeSource(
typeof(GenericHandler1 <>),
typeof(GenericHandler2 <,>));
var collection = new ServiceCollection();
collection.AddCustomRequestHandlers(typeSource);
Assert.Empty(collection);
}
public void RetrieveRequestHandler_Correct_Interfaces_Are_Generated()
{
var typeSource = new MockTypeSource(
typeof(TestRetrieveHandler1));
var collection = new ServiceCollection();
collection.AddCustomRequestHandlers(typeSource);
Assert.Collection(collection.OrderBy(x => x.ServiceType?.Name),
x => Assert.Equal(typeof(IRetrieveHandler <TestRow>), x.ServiceType),
x => Assert.Equal(typeof(IRetrieveHandler <TestRow, RetrieveRequest, RetrieveResponse <TestRow> >), x.ServiceType),
x => Assert.Equal(typeof(TestRetrieveHandler1), x.ServiceType));
}
public void Interface_Type_CanBeFiltered_Via_Predicate()
{
var typeSource = new MockTypeSource(typeof(CustomHandler1));
var collection = new ServiceCollection();
collection.AddCustomRequestHandlers(typeSource, (svc, impl) =>
!svc.IsInterface);
var descriptor = Assert.Single(collection);
Assert.Equal(typeof(CustomHandler1), descriptor.ServiceType);
Assert.Equal(typeof(CustomHandler1), descriptor.ImplementationType);
Assert.Equal(ServiceLifetime.Transient, descriptor.Lifetime);
}
public void Throws_When_Multiple_Types_With_DefaultHandler_Implements_Same_Interface()
{
var typeSource = new MockTypeSource(
typeof(CustomHandler1DefaultA),
typeof(CustomHandler1DefaultB));
var collection = new ServiceCollection();
var exception = Assert.Throws <InvalidProgramException>(() =>
collection.AddCustomRequestHandlers(typeSource));
Assert.Contains("CustomHandler1DefaultA", exception.Message, StringComparison.OrdinalIgnoreCase);
Assert.Contains("CustomHandler1DefaultB", exception.Message, StringComparison.OrdinalIgnoreCase);
Assert.Contains("use [DefaultHandler] on only one of them!", exception.Message, StringComparison.OrdinalIgnoreCase);
}
public void Uses_Passed_TypeSource()
{
var typeSource = new MockTypeSource(typeof(CustomHandler1));
var collection = new ServiceCollection();
collection.AddCustomRequestHandlers(typeSource);
Assert.Collection(collection,
x1 =>
{
Assert.Equal(typeof(CustomHandler1), x1.ServiceType);
Assert.Equal(typeof(CustomHandler1), x1.ImplementationType);
Assert.Equal(ServiceLifetime.Transient, x1.Lifetime);
},
x2 =>
{
Assert.Equal(typeof(ICustomHandler1), x2.ServiceType);
Assert.Equal(typeof(CustomHandler1), x2.ImplementationType);
Assert.Equal(ServiceLifetime.Transient, x2.Lifetime);
});
}
