596 lines
24 KiB
C#
596 lines
24 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Http.Internal;
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using Microsoft.AspNetCore.SignalR.Tests.Common;
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using Microsoft.AspNetCore.Sockets.Internal;
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using Microsoft.AspNetCore.WebSockets.Internal;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Primitives;
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using Microsoft.Extensions.WebSockets.Internal;
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using Xunit;
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namespace Microsoft.AspNetCore.Sockets.Tests
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{
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public class HttpConnectionDispatcherTests
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{
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// Redefined from MessageFormatter because we want constants to go in the Attributes
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private const string TextContentType = "application/vnd.microsoft.aspnetcore.endpoint-messages.v1+text";
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private const string BinaryContentType = "application/vnd.microsoft.aspnetcore.endpoint-messages.v1+binary";
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[Fact]
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public async Task NegotiateReservesConnectionIdAndReturnsIt()
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{
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var manager = CreateConnectionManager();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = new DefaultHttpContext();
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var services = new ServiceCollection();
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services.AddEndPoint<TestEndPoint>();
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services.AddOptions();
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context.RequestServices = services.BuildServiceProvider();
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var ms = new MemoryStream();
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context.Request.Path = "/negotiate";
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context.Response.Body = ms;
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await dispatcher.ExecuteAsync<TestEndPoint>("", context);
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var id = Encoding.UTF8.GetString(ms.ToArray());
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ConnectionState state;
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Assert.True(manager.TryGetConnection(id, out state));
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Assert.Equal(id, state.Connection.ConnectionId);
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}
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[Theory]
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[InlineData("/send")]
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[InlineData("/sse")]
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[InlineData("/poll")]
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[InlineData("/ws")]
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public async Task EndpointsThatAcceptConnectionId404WhenUnknownConnectionIdProvided(string path)
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{
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var manager = CreateConnectionManager();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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using (var strm = new MemoryStream())
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{
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var context = new DefaultHttpContext();
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context.Response.Body = strm;
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var services = new ServiceCollection();
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services.AddEndPoint<TestEndPoint>();
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services.AddOptions();
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context.RequestServices = services.BuildServiceProvider();
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context.Request.Path = path;
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var values = new Dictionary<string, StringValues>();
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values["id"] = "unknown";
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var qs = new QueryCollection(values);
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context.Request.Query = qs;
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await dispatcher.ExecuteAsync<TestEndPoint>("", context);
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Assert.Equal(StatusCodes.Status404NotFound, context.Response.StatusCode);
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await strm.FlushAsync();
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Assert.Equal("No Connection with that ID", Encoding.UTF8.GetString(strm.ToArray()));
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}
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}
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[Theory]
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[InlineData("/send")]
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[InlineData("/sse")]
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[InlineData("/poll")]
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public async Task EndpointsThatRequireConnectionId400WhenNoConnectionIdProvided(string path)
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{
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var manager = CreateConnectionManager();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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using (var strm = new MemoryStream())
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{
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var context = new DefaultHttpContext();
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context.Response.Body = strm;
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var services = new ServiceCollection();
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services.AddOptions();
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services.AddEndPoint<TestEndPoint>();
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context.RequestServices = services.BuildServiceProvider();
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context.Request.Path = path;
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await dispatcher.ExecuteAsync<TestEndPoint>("", context);
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Assert.Equal(StatusCodes.Status400BadRequest, context.Response.StatusCode);
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await strm.FlushAsync();
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Assert.Equal("Connection ID required", Encoding.UTF8.GetString(strm.ToArray()));
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}
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}
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[Theory]
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[InlineData(TransportType.LongPolling, 204)]
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[InlineData(TransportType.WebSockets, 404)]
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[InlineData(TransportType.ServerSentEvents, 404)]
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public async Task EndPointThatOnlySupportsLongPollingRejectsOtherTransports(TransportType transportType, int status)
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{
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await CheckTransportSupported(TransportType.LongPolling, transportType, status);
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}
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[Theory]
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[InlineData(TransportType.ServerSentEvents, 200)]
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[InlineData(TransportType.WebSockets, 404)]
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[InlineData(TransportType.LongPolling, 404)]
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public async Task EndPointThatOnlySupportsSSERejectsOtherTransports(TransportType transportType, int status)
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{
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await CheckTransportSupported(TransportType.ServerSentEvents, transportType, status);
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}
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[Theory]
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[InlineData(TransportType.WebSockets, 200)]
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[InlineData(TransportType.ServerSentEvents, 404)]
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[InlineData(TransportType.LongPolling, 404)]
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public async Task EndPointThatOnlySupportsWebSockesRejectsOtherTransports(TransportType transportType, int status)
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{
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await CheckTransportSupported(TransportType.WebSockets, transportType, status);
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}
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[Theory]
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[InlineData(TransportType.LongPolling, 404)]
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public async Task EndPointThatOnlySupportsWebSocketsAndSSERejectsLongPolling(TransportType transportType, int status)
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{
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await CheckTransportSupported(TransportType.WebSockets | TransportType.ServerSentEvents, transportType, status);
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}
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[Fact]
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public async Task CompletedEndPointEndsConnection()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<ImmediatelyCompleteEndPoint>("/sse", state);
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await dispatcher.ExecuteAsync<ImmediatelyCompleteEndPoint>("", context);
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Assert.Equal(StatusCodes.Status200OK, context.Response.StatusCode);
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ConnectionState removed;
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bool exists = manager.TryGetConnection(state.Connection.ConnectionId, out removed);
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Assert.False(exists);
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}
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[Fact]
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public async Task SynchronusExceptionEndsConnection()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<SynchronusExceptionEndPoint>("/sse", state);
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await dispatcher.ExecuteAsync<SynchronusExceptionEndPoint>("", context);
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Assert.Equal(StatusCodes.Status200OK, context.Response.StatusCode);
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ConnectionState removed;
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bool exists = manager.TryGetConnection(state.Connection.ConnectionId, out removed);
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Assert.False(exists);
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}
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[Fact]
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public async Task SynchronusExceptionEndsLongPollingConnection()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<SynchronusExceptionEndPoint>("/poll", state);
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await dispatcher.ExecuteAsync<SynchronusExceptionEndPoint>("", context);
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Assert.Equal(StatusCodes.Status204NoContent, context.Response.StatusCode);
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ConnectionState removed;
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bool exists = manager.TryGetConnection(state.Connection.ConnectionId, out removed);
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Assert.False(exists);
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}
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[Fact]
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public async Task CompletedEndPointEndsLongPollingConnection()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<ImmediatelyCompleteEndPoint>("/poll", state);
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await dispatcher.ExecuteAsync<ImmediatelyCompleteEndPoint>("", context);
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Assert.Equal(StatusCodes.Status204NoContent, context.Response.StatusCode);
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ConnectionState removed;
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bool exists = manager.TryGetConnection(state.Connection.ConnectionId, out removed);
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Assert.False(exists);
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}
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[Theory]
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[InlineData("/ws", true)]
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[InlineData("/sse", false)]
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public async Task RequestToActiveConnectionId409ForStreamingTransports(string path, bool isWebSocketRequest)
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context1 = MakeRequest<TestEndPoint>(path, state, isWebSocketRequest: isWebSocketRequest);
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var context2 = MakeRequest<TestEndPoint>(path, state, isWebSocketRequest: isWebSocketRequest);
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var request1 = dispatcher.ExecuteAsync<TestEndPoint>("", context1);
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await dispatcher.ExecuteAsync<TestEndPoint>("", context2);
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Assert.Equal(StatusCodes.Status409Conflict, context2.Response.StatusCode);
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var webSocketTask = Task.CompletedTask;
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if (isWebSocketRequest)
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{
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var ws = (TestWebSocketConnectionFeature)context1.Features.Get<IHttpWebSocketConnectionFeature>();
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webSocketTask = ws.Client.ExecuteAsync(frame => Task.CompletedTask);
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await ws.Client.CloseAsync(new WebSocketCloseResult(WebSocketCloseStatus.NormalClosure), CancellationToken.None);
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}
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manager.CloseConnections();
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await webSocketTask.OrTimeout();
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await request1.OrTimeout();
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}
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[Fact]
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public async Task RequestToActiveConnectionIdKillsPreviousConnectionLongPolling()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context1 = MakeRequest<TestEndPoint>("/poll", state);
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var context2 = MakeRequest<TestEndPoint>("/poll", state);
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var request1 = dispatcher.ExecuteAsync<TestEndPoint>("", context1);
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var request2 = dispatcher.ExecuteAsync<TestEndPoint>("", context2);
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await request1;
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Assert.Equal(StatusCodes.Status204NoContent, context1.Response.StatusCode);
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Assert.Equal(ConnectionState.ConnectionStatus.Active, state.Status);
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Assert.False(request2.IsCompleted);
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manager.CloseConnections();
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await request2;
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}
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[Theory]
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[InlineData("/sse")]
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[InlineData("/poll")]
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public async Task RequestToDisposedConnectionIdReturns404(string path)
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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state.Status = ConnectionState.ConnectionStatus.Disposed;
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<TestEndPoint>(path, state);
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await dispatcher.ExecuteAsync<TestEndPoint>("", context);
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Assert.Equal(StatusCodes.Status404NotFound, context.Response.StatusCode);
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}
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[Fact]
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public async Task ConnectionStateSetToInactiveAfterPoll()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<TestEndPoint>("/poll", state);
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var task = dispatcher.ExecuteAsync<TestEndPoint>("", context);
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var buffer = Encoding.UTF8.GetBytes("Hello World");
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// Write to the transport so the poll yields
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await state.Connection.Transport.Output.WriteAsync(new Message(buffer, MessageType.Text, endOfMessage: true));
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await task;
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Assert.Equal(ConnectionState.ConnectionStatus.Inactive, state.Status);
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Assert.Null(state.RequestId);
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Assert.Equal(StatusCodes.Status200OK, context.Response.StatusCode);
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}
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[Fact]
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public async Task BlockingConnectionWorksWithStreamingConnections()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<BlockingEndPoint>("/sse", state);
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var task = dispatcher.ExecuteAsync<BlockingEndPoint>("", context);
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var buffer = Encoding.UTF8.GetBytes("Hello World");
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// Write to the application
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await state.Application.Output.WriteAsync(new Message(buffer, MessageType.Text, endOfMessage: true));
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await task;
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Assert.Equal(StatusCodes.Status200OK, context.Response.StatusCode);
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ConnectionState removed;
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bool exists = manager.TryGetConnection(state.Connection.ConnectionId, out removed);
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Assert.False(exists);
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}
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[Fact]
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public async Task BlockingConnectionWorksWithLongPollingConnection()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<BlockingEndPoint>("/poll", state);
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var task = dispatcher.ExecuteAsync<BlockingEndPoint>("", context);
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var buffer = Encoding.UTF8.GetBytes("Hello World");
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// Write to the application
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await state.Application.Output.WriteAsync(new Message(buffer, MessageType.Text, endOfMessage: true));
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await task;
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Assert.Equal(StatusCodes.Status204NoContent, context.Response.StatusCode);
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ConnectionState removed;
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bool exists = manager.TryGetConnection(state.Connection.ConnectionId, out removed);
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Assert.False(exists);
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}
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[Fact]
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public async Task AttemptingToPollWhileAlreadyPollingReplacesTheCurrentPoll()
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context1 = MakeRequest<BlockingEndPoint>("/poll", state);
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var task1 = dispatcher.ExecuteAsync<BlockingEndPoint>("", context1);
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var context2 = MakeRequest<BlockingEndPoint>("/poll", state);
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var task2 = dispatcher.ExecuteAsync<BlockingEndPoint>("", context2);
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// Task 1 should finish when request 2 arrives
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await task1.OrTimeout();
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// Send a message from the app to complete Task 2
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await state.Connection.Transport.Output.WriteAsync(new Message(Encoding.UTF8.GetBytes("Hello, World"), MessageType.Text));
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await task2.OrTimeout();
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// Verify the results
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Assert.Equal(StatusCodes.Status204NoContent, context1.Response.StatusCode);
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Assert.Equal(string.Empty, GetContentAsString(context1.Response.Body));
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Assert.Equal(StatusCodes.Status200OK, context2.Response.StatusCode);
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Assert.Equal("T12:T:Hello, World;", GetContentAsString(context2.Response.Body));
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}
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[Theory]
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[InlineData("", "text", "Hello, World", "Hello, World", MessageType.Text)] // Legacy format
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[InlineData("", "binary", "Hello, World", "Hello, World", MessageType.Binary)] // Legacy format
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[InlineData(TextContentType, null, "T12:T:Hello, World;", "Hello, World", MessageType.Text)]
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[InlineData(TextContentType, null, "T16:B:SGVsbG8sIFdvcmxk;", "Hello, World", MessageType.Binary)]
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[InlineData(TextContentType, null, "T12:E:Hello, World;", "Hello, World", MessageType.Error)]
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[InlineData(TextContentType, null, "T12:C:Hello, World;", "Hello, World", MessageType.Close)]
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[InlineData(BinaryContentType, null, "QgAAAAAAAAAMAEhlbGxvLCBXb3JsZA==", "Hello, World", MessageType.Text)]
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[InlineData(BinaryContentType, null, "QgAAAAAAAAAMAUhlbGxvLCBXb3JsZA==", "Hello, World", MessageType.Binary)]
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[InlineData(BinaryContentType, null, "QgAAAAAAAAAMAkhlbGxvLCBXb3JsZA==", "Hello, World", MessageType.Error)]
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[InlineData(BinaryContentType, null, "QgAAAAAAAAAMA0hlbGxvLCBXb3JsZA==", "Hello, World", MessageType.Close)]
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public async Task SendPutsPayloadsInTheChannel(string contentType, string format, string encoded, string payload, MessageType type)
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{
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var messages = await RunSendTest(contentType, encoded, format);
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Assert.Equal(1, messages.Count);
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Assert.Equal(payload, Encoding.UTF8.GetString(messages[0].Payload));
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Assert.Equal(type, messages[0].Type);
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}
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[Theory]
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[InlineData(TextContentType, "T12:T:Hello, World;16:B:SGVsbG8sIFdvcmxk;5:E:Error;6:C:Closed;")]
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[InlineData(BinaryContentType, "QgAAAAAAAAAMAEhlbGxvLCBXb3JsZAAAAAAAAAAMAUhlbGxvLCBXb3JsZAAAAAAAAAAFAkVycm9yAAAAAAAAAAYDQ2xvc2Vk")]
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public async Task SendAllowsMultipleMessages(string contentType, string encoded)
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{
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var messages = await RunSendTest(contentType, encoded, format: null);
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Assert.Equal(4, messages.Count);
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Assert.Equal("Hello, World", Encoding.UTF8.GetString(messages[0].Payload));
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Assert.Equal(MessageType.Text, messages[0].Type);
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Assert.Equal("Hello, World", Encoding.UTF8.GetString(messages[1].Payload));
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Assert.Equal(MessageType.Binary, messages[1].Type);
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Assert.Equal("Error", Encoding.UTF8.GetString(messages[2].Payload));
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Assert.Equal(MessageType.Error, messages[2].Type);
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Assert.Equal("Closed", Encoding.UTF8.GetString(messages[3].Payload));
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Assert.Equal(MessageType.Close, messages[3].Type);
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}
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private static async Task CheckTransportSupported(TransportType supportedTransports, TransportType transportType, int status)
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{
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var path = "";
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switch (transportType)
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{
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case TransportType.WebSockets:
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path = "/ws";
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break;
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case TransportType.ServerSentEvents:
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path = "/sse";
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break;
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case TransportType.LongPolling:
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path = "/poll";
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break;
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default:
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break;
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}
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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using (var strm = new MemoryStream())
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{
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var context = new DefaultHttpContext();
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context.Response.Body = strm;
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var services = new ServiceCollection();
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services.AddOptions();
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services.AddEndPoint<ImmediatelyCompleteEndPoint>(options =>
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{
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options.Transports = supportedTransports;
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});
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context.RequestServices = services.BuildServiceProvider();
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context.Request.Path = path;
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var values = new Dictionary<string, StringValues>();
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values["id"] = state.Connection.ConnectionId;
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var qs = new QueryCollection(values);
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context.Request.Query = qs;
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await dispatcher.ExecuteAsync<ImmediatelyCompleteEndPoint>("", context);
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Assert.Equal(status, context.Response.StatusCode);
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await strm.FlushAsync();
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// Check the message for 404
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if (status == 404)
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{
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Assert.Equal($"{transportType} transport not supported by this end point type", Encoding.UTF8.GetString(strm.ToArray()));
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}
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}
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}
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private static async Task<List<Message>> RunSendTest(string contentType, string encoded, string format)
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{
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var manager = CreateConnectionManager();
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var state = manager.CreateConnection();
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var dispatcher = new HttpConnectionDispatcher(manager, new LoggerFactory());
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var context = MakeRequest<TestEndPoint>("/send", state, format);
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context.Request.ContentType = contentType;
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var endPoint = context.RequestServices.GetRequiredService<TestEndPoint>();
|
|
|
|
var buffer = contentType == BinaryContentType ?
|
|
Convert.FromBase64String(encoded) :
|
|
Encoding.UTF8.GetBytes(encoded);
|
|
var messages = new List<Message>();
|
|
using (context.Request.Body = new MemoryStream(buffer, writable: false))
|
|
{
|
|
await dispatcher.ExecuteAsync<TestEndPoint>("", context).OrTimeout();
|
|
}
|
|
|
|
while (state.Connection.Transport.Input.TryRead(out var message))
|
|
{
|
|
messages.Add(message);
|
|
}
|
|
|
|
return messages;
|
|
}
|
|
|
|
private static DefaultHttpContext MakeRequest<TEndPoint>(string path, ConnectionState state, string format = null, bool isWebSocketRequest = false) where TEndPoint : EndPoint
|
|
{
|
|
var context = new DefaultHttpContext();
|
|
var services = new ServiceCollection();
|
|
services.AddEndPoint<TEndPoint>();
|
|
services.AddOptions();
|
|
context.RequestServices = services.BuildServiceProvider();
|
|
context.Request.Path = path;
|
|
var values = new Dictionary<string, StringValues>();
|
|
values["id"] = state.Connection.ConnectionId;
|
|
if (format != null)
|
|
{
|
|
values["format"] = format;
|
|
}
|
|
var qs = new QueryCollection(values);
|
|
context.Request.Query = qs;
|
|
context.Response.Body = new MemoryStream();
|
|
|
|
if (isWebSocketRequest)
|
|
{
|
|
// Add Test WebSocket feature
|
|
context.Features.Set<IHttpWebSocketConnectionFeature>(new TestWebSocketConnectionFeature());
|
|
}
|
|
|
|
return context;
|
|
}
|
|
|
|
private static ConnectionManager CreateConnectionManager()
|
|
{
|
|
return new ConnectionManager(new Logger<ConnectionManager>(new LoggerFactory()));
|
|
}
|
|
|
|
private string GetContentAsString(Stream body)
|
|
{
|
|
Assert.True(body.CanSeek, "Can't get content of a non-seekable stream");
|
|
body.Seek(0, SeekOrigin.Begin);
|
|
using (var reader = new StreamReader(body))
|
|
{
|
|
return reader.ReadToEnd();
|
|
}
|
|
}
|
|
}
|
|
|
|
public class BlockingEndPoint : EndPoint
|
|
{
|
|
public override Task OnConnectedAsync(Connection connection)
|
|
{
|
|
connection.Transport.Input.WaitToReadAsync().Wait();
|
|
return Task.CompletedTask;
|
|
}
|
|
}
|
|
|
|
public class SynchronusExceptionEndPoint : EndPoint
|
|
{
|
|
public override Task OnConnectedAsync(Connection connection)
|
|
{
|
|
throw new InvalidOperationException();
|
|
}
|
|
}
|
|
|
|
public class ImmediatelyCompleteEndPoint : EndPoint
|
|
{
|
|
public override Task OnConnectedAsync(Connection connection)
|
|
{
|
|
return Task.CompletedTask;
|
|
}
|
|
}
|
|
|
|
public class TestEndPoint : EndPoint
|
|
{
|
|
public override async Task OnConnectedAsync(Connection connection)
|
|
{
|
|
while (await connection.Transport.Input.WaitToReadAsync())
|
|
{
|
|
}
|
|
}
|
|
}
|
|
}
|