public async Task Should_be_able_to_execute_query_sucessfully()
{
var scope = Substitute.For <IHandlerScope>();
var result = new OneResult();
var handler = new OneQueryHandler(result);
scope.Create(typeof(IQueryHandler <OneQuery, OneResult>)).Returns(new[] { handler });
var sut = new MessageInvoker(scope);
var context = new ExecuteQueriesInvocationContext(ClaimsPrincipal.Current, sut);
await sut.ProcessAsync(context, new OneQuery());
context.Replies.First().Body.Should().BeSameAs(result);
}
public void Should_abort_if_multiple_query_handlers_have_been_registered()
{
var scope = Substitute.For <IHandlerScope>();
var result = new OneResult();
var handler = new OneQueryHandler(result);
scope.Create(typeof(IQueryHandler <OneQuery, OneResult>)).Returns(new[] { handler, handler });
var sut = new MessageInvoker(scope);
var context = new ExecuteQueriesInvocationContext(ClaimsPrincipal.Current, sut);
Func <Task> actual = () => sut.ProcessAsync(context, new OneQuery());
actual.Should().Throw <OnlyOneQueryHandlerAllowedException>();
}
public async Task Should_invoke_second_level_queries_directly()
{
var scope = Substitute.For <IHandlerScope>();
var result = new OneResult();
QueryTwoResult expected = null;
var handler = new OneQueryHandler(result, (messageContext, query) =>
{
expected = messageContext.QueryAsync(new QueryTwo()).GetAwaiter().GetResult();
});
var result2 = new QueryTwoResult();
var handler2 = new QueryTwoHandler(result2);
scope.Create(typeof(IQueryHandler <OneQuery, OneResult>)).Returns(new[] { handler });
scope.Create(typeof(IQueryHandler <QueryTwo, QueryTwoResult>)).Returns(new[] { handler2 });
var sut = new MessageInvoker(scope);
var context = new ExecuteQueriesInvocationContext(ClaimsPrincipal.Current, sut);
await sut.ProcessAsync(context, new OneQuery());
expected.Should().BeSameAs(result2, "because it should not be enqueued as queries that comes from the queue");
context.Replies.Count.Should().Be(1, "because only result from first queue should be enqueued");
context.Replies.First().Body.Should().Be(result);
context.Messages.Should().BeEmpty("because no messages were enqueued by the handlers");
}
