public async Task Run()
{
var fakeHandler = new FakeHttpMessageHandler();
var stream = $"event: open\ndata: hello\n\nid: {_eventId}\ndata: {_json}\n\n";
fakeHandler.QueueResponse(FakeResponse.StartsStream(StreamAction.Write(stream)));
_eventSource = new SSEEventSource(new Uri("http://test.com"),
builder => builder.MessageHandler(fakeHandler));
_requestBuilder = new FakeStreamableRequestBuilder(new Uri("https://horizon-testnet.stellar.org"), "test",
null, _eventSource);
var handler = new EventHandler <T>((sender, e) =>
{
_eventSource.Shutdown();
_testAction(e);
});
var task = _requestBuilder.Stream(handler).Connect();
var timeoutTask = Task.Delay(TimeSpan.FromSeconds(5.0));
var completedTask = await Task.WhenAny(task, timeoutTask).ConfigureAwait(false);
if (completedTask != task)
{
throw new Exception("Task did not complete.");
}
}
public StreamableTest(string json, Action <T> action, string eventId = null)
{
_json = json.Replace("\r\n", "").Replace("\n", "");
_testAction = action;
_received = null;
_eventSource = null;
_requestBuilder = null;
_eventId = eventId ?? "1234";
}
public async Task TestHelloStream()
{
// Check we skip the first message with "hello" data
var fakeHandler = new FakeHttpMessageHandler();
var stream = "event: open\ndata: hello\n\ndata: foobar\n\n";
fakeHandler.QueueResponse(FakeResponse.StartsStream(StreamAction.Write(stream)));
using (var eventSource = new SSEEventSource(_uri, builder => builder.MessageHandler(fakeHandler)))
{
string dataReceived = null;
eventSource.Message += (sender, args) =>
{
dataReceived = args.Data;
eventSource.Shutdown();
};
await eventSource.Connect();
Assert.AreEqual("foobar", dataReceived);
}
}
public async Task TestStream()
{
var json = File.ReadAllText(Path.Combine("testdata", "ledger.json"))
.Replace(Environment.NewLine, "");
var fakeHandler = new FakeHttpMessageHandler();
var stream = $"event: open\ndata: hello\n\nid: 1234\ndata: {json}\n\n";
fakeHandler.QueueResponse(FakeResponse.StartsStream(StreamAction.Write(stream)));
var eventSource = new SSEEventSource(new Uri("http://test.com"),
builder => builder.MessageHandler(fakeHandler));
LedgerResponse dataReceived = null;
eventSource.Message += (sender, args) =>
{
dataReceived = JsonSingleton.GetInstance <LedgerResponse>(args.Data);
eventSource.Shutdown();
};
await eventSource.Connect();
LedgerDeserializeTest.AssertTestData(dataReceived);
}
public async Task TestStreamErrorEvent()
{
var fakeHandler = new FakeHttpMessageHandler();
fakeHandler.QueueResponse(FakeResponse.WithIOError());
fakeHandler.QueueResponse(FakeResponse.WithIOError());
fakeHandler.QueueResponse(FakeResponse.StartsStream());
using (var eventSource = new SSEEventSource(_uri, builder => builder.MessageHandler(fakeHandler)))
{
var errorCount = 0;
eventSource.Error += (sender, args) =>
{
errorCount += 1;
if (errorCount >= 2)
{
eventSource.Shutdown();
}
};
await eventSource.Connect();
Assert.AreEqual(2, errorCount);
}
}
