public async Task EmptyCollectionOnContext_YieldsNothingPublished()
{
var nextCalled = false;
Task CallNext(GraphQueryExecutionContext context, CancellationToken token)
{
nextCalled = true;
return(Task.CompletedTask);
}
var next = new GraphMiddlewareInvocationDelegate <GraphQueryExecutionContext>(CallNext);
var queue = new SubscriptionEventQueue();
var publisher = new PublishRaisedSubscriptionEventsMiddleware <GraphSchema>(queue);
var server = new TestServerBuilder()
.Build();
var context = server.CreateQueryContextBuilder()
.Build();
var col = context.Items.GetOrAdd(
SubscriptionConstants.RAISED_EVENTS_COLLECTION_KEY, (_) => new List <SubscriptionEventProxy>());
await publisher.InvokeAsync(context, next, default);
Assert.IsTrue(nextCalled);
Assert.AreEqual(0, queue.Count);
}
public void CollectionKeyIsNotACollection_ThrowsException()
{
Task CallNext(GraphQueryExecutionContext context, CancellationToken token)
{
return(Task.CompletedTask);
}
var next = new GraphMiddlewareInvocationDelegate <GraphQueryExecutionContext>(CallNext);
var queue = new SubscriptionEventQueue();
var publisher = new PublishRaisedSubscriptionEventsMiddleware <GraphSchema>(queue);
var server = new TestServerBuilder()
.Build();
var context = server.CreateQueryContextBuilder()
.Build();
var col = context.Items.GetOrAdd(
SubscriptionConstants.RAISED_EVENTS_COLLECTION_KEY, (_) => new object());
Assert.ThrowsAsync <GraphExecutionException>(async() =>
{
await publisher.InvokeAsync(context, next, default);
});
}
public async Task NoItemsOnContext_YieldsNothingPublished()
{
var nextCalled = false;
Task CallNext(GraphQueryExecutionContext context, CancellationToken token)
{
nextCalled = true;
return(Task.CompletedTask);
}
var next = new GraphMiddlewareInvocationDelegate <GraphQueryExecutionContext>(CallNext);
var queue = new SubscriptionEventQueue();
var publisher = new PublishRaisedSubscriptionEventsMiddleware <GraphSchema>(queue);
var server = new TestServerBuilder()
.Build();
var context = server.CreateQueryContextBuilder()
.Build();
await publisher.InvokeAsync(context, next, default);
Assert.IsTrue(nextCalled);
Assert.AreEqual(0, queue.Count);
}