public async Task SSEWritesVeryLargeMessages()
{
using (StartVerifiableLog())
{
var pair = DuplexPipe.CreateConnectionPair(PipeOptions.Default, new PipeOptions(readerScheduler: PipeScheduler.Inline));
var connection = new DefaultConnectionContext("foo", pair.Transport, pair.Application);
var context = new DefaultHttpContext();
var ms = new MemoryStream();
context.Response.Body = ms;
var sse = new ServerSentEventsServerTransport(connection.Application.Input, connectionId: string.Empty, LoggerFactory);
var task = sse.ProcessRequestAsync(context, context.RequestAborted);
string hText = new string('H', 60000);
string wText = new string('W', 60000);
await connection.Transport.Output.WriteAsync(Encoding.ASCII.GetBytes(hText + wText));
connection.Transport.Output.Complete();
await task.OrTimeout();
Assert.Equal(":\r\ndata: " + hText + wText + "\r\n\r\n", Encoding.ASCII.GetString(ms.ToArray()));
}
}
public async Task SSESetsContentType()
{
using (StartVerifiableLog())
{
var pair = DuplexPipe.CreateConnectionPair(PipeOptions.Default, PipeOptions.Default);
var connection = new DefaultConnectionContext("foo", pair.Transport, pair.Application);
var context = new DefaultHttpContext();
var sse = new ServerSentEventsServerTransport(connection.Application.Input, connectionId: string.Empty, LoggerFactory);
connection.Transport.Output.Complete();
await sse.ProcessRequestAsync(context, context.RequestAborted);
Assert.Equal("text/event-stream", context.Response.ContentType);
Assert.Equal("no-cache", context.Response.Headers["Cache-Control"]);
}
}
public async Task SSETurnsResponseBufferingOff()
{
using (StartVerifiableLog())
{
var pair = DuplexPipe.CreateConnectionPair(PipeOptions.Default, PipeOptions.Default);
var connection = new DefaultConnectionContext("foo", pair.Transport, pair.Application);
var context = new DefaultHttpContext();
var feature = new HttpBufferingFeature(new MemoryStream());
context.Features.Set <IHttpResponseBodyFeature>(feature);
var sse = new ServerSentEventsServerTransport(connection.Application.Input, connectionId: connection.ConnectionId, LoggerFactory);
connection.Transport.Output.Complete();
await sse.ProcessRequestAsync(context, context.RequestAborted);
Assert.True(feature.ResponseBufferingDisabled);
}
}
public async Task SSEAddsAppropriateFraming(string message, string expected)
{
using (StartVerifiableLog())
{
var pair = DuplexPipe.CreateConnectionPair(PipeOptions.Default, PipeOptions.Default);
var connection = new DefaultConnectionContext("foo", pair.Transport, pair.Application);
var context = new DefaultHttpContext();
var sse = new ServerSentEventsServerTransport(connection.Application.Input, connectionId: string.Empty, LoggerFactory);
var ms = new MemoryStream();
context.Response.Body = ms;
await connection.Transport.Output.WriteAsync(Encoding.UTF8.GetBytes(message));
connection.Transport.Output.Complete();
await sse.ProcessRequestAsync(context, context.RequestAborted);
Assert.Equal(expected, Encoding.UTF8.GetString(ms.ToArray()));
}
}