public async Task WaitAsync_CancellationToken_Cancel() {
var amre = new AsyncManualResetEvent();
var cts = new CancellationTokenSource();
var task = amre.WaitAsync(cts.Token);
task.Should().NotBeCompleted();
cts.Cancel();
await Task.Delay(10);
task.Should().BeCanceled();
}
public async Task CancelAll_CancellableHangingLoop() {
var testMrs = new AsyncManualResetEvent();
var plotMrs = new AsyncManualResetEvent();
_callback.PlotHandler = (message, ct) => {
testMrs.Set();
return plotMrs.WaitAsync(ct);
};
Task responceTask;
using (var interaction = await _session.BeginInteractionAsync()) {
responceTask = interaction.RespondAsync("plot(1)\n");
}
await testMrs.WaitAsync().Should().BeCompletedAsync();
await _session.CancelAllAsync().Should().BeCompletedAsync();
_session.IsHostRunning.Should().BeTrue();
responceTask.Should().BeCanceled();
}
public async Task StopReentrantLoop() {
var callback = new RSessionCallbackStub();
var session = new RSession(0, _brokerClient, new AsyncReaderWriterLock().CreateExclusiveReaderLock(), () => { });
await session.StartHostAsync(new RHostStartupInfo {
Name = _testMethod.Name
}, callback, 50000);
var testMrs = new AsyncManualResetEvent();
callback.PlotHandler = (message, ct) => {
testMrs.Set();
return session.EvaluateAsync("x <- 1\n");
};
Task responceTask;
using (var interaction = await session.BeginInteractionAsync()) {
responceTask = interaction.RespondAsync("plot(1)\n");
}
await testMrs.WaitAsync().Should().BeCompletedAsync();
await session.StopHostAsync().Should().BeCompletedAsync(20000);
session.IsHostRunning.Should().BeFalse();
await responceTask.Should().BeCanceledAsync();
}
public async Task WaitAsync_CancellationToken_Canceled() {
var amre = new AsyncManualResetEvent();
Func<Task> f = () => amre.WaitAsync(new CancellationToken(true));
await f.ShouldThrowAsync<OperationCanceledException>();
}
public async Task CancelAll_HangingLoop_Cancel() {
var testMrs = new AsyncManualResetEvent();
var plotMrs = new AsyncManualResetEvent();
_callback.PlotHandler = (message, ct) => {
testMrs.Set();
// ct is ignored on purpose
return plotMrs.WaitAsync();
};
var cancelAllCts = new CancellationTokenSource();
Task responceTask;
using (var interaction = await _session.BeginInteractionAsync()) {
responceTask = interaction.RespondAsync("plot(1)\n");
}
await testMrs.WaitAsync().Should().BeCompletedAsync();
var cancelAllAsyncTask = _session.CancelAllAsync(cancelAllCts.Token);
await cancelAllAsyncTask.Should().NotBeCompletedAsync();
cancelAllCts.Cancel();
await cancelAllAsyncTask.Should().BeCanceledAsync();
_session.IsHostRunning.Should().BeTrue();
await responceTask.Should().BeCanceledAsync();
plotMrs.Set();
}
