public void WaitOne_ThrowsArgNullException_WhenWaitHandleIsNull()
{
var exception = Assert.Throws <ArgumentNullException>(
() => TaskExtensions.WaitOne(null, TimeSpan.Zero, CancellationToken.None));
Assert.Equal("waitHandle", exception.ParamName);
}
public void WaitOne_ReturnsTrue_WhenWaitHandleIsSignaled_AndTimeoutIsZero()
{
_mre.Set();
var result = TaskExtensions.WaitOne(_mre, TimeSpan.Zero, _cts.Token);
Assert.True(result);
}
public void WaitOne_ReturnsTrue_WhenWaitHandleIsSignaled()
{
_mre.Set();
var result = TaskExtensions.WaitOne(_mre, Timeout.InfiniteTimeSpan, _cts.Token);
Assert.True(result);
}
public void WaitOne_ThrowsOpCanceledException_WhenCancellationTokenIsCanceled()
{
_cts.Cancel();
var exception = Assert.Throws <OperationCanceledException>(
() => TaskExtensions.WaitOne(_mre, TimeSpan.Zero, _cts.Token));
Assert.Equal(_cts.Token, exception.CancellationToken);
}
public void WaitOne_WaitsAndReturnsFalse_WhenNotSignaled_AndNonNullTimeout()
{
var sw = Stopwatch.StartNew();
var result = TaskExtensions.WaitOne(_mre, TimeSpan.FromMilliseconds(100), CancellationToken.None);
sw.Stop();
Assert.False(result);
Assert.True(sw.Elapsed > TimeSpan.FromMilliseconds(95), sw.Elapsed.ToString());
}
public void WaitOne_ThrowsOpCanceledException_EvenWhenWaitHandleIsSignaled()
{
_cts.Cancel();
_mre.Set();
var exception = Assert.Throws <OperationCanceledException>(
() => TaskExtensions.WaitOne(_mre, Timeout.InfiniteTimeSpan, _cts.Token));
Assert.Equal(_cts.Token, exception.CancellationToken);
}
public void WaitOne_WaitsAndReturnsFalse_WhenNotSignaled_AndNonNullTimeout()
{
using (var mre = new ManualResetEvent(false))
{
var sw = Stopwatch.StartNew();
var result = TaskExtensions.WaitOne(mre, TimeSpan.FromMilliseconds(500), CancellationToken.None);
sw.Stop();
Assert.False(result, "result != false");
Assert.False(mre.WaitOne(TimeSpan.Zero), "mre is signaled");
Assert.True(sw.Elapsed > TimeSpan.FromMilliseconds(450), $"Elapsed: {sw.Elapsed.TotalMilliseconds} ms, Expected: 450 ms");
}
}
public void WaitOne_WaitsAndThrowsTaskCanceled_WhenNotSignaled_AndCancellationTokenIsCanceled()
{
var sw = Stopwatch.StartNew();
_cts.CancelAfter(TimeSpan.FromMilliseconds(100));
var exception = Assert.ThrowsAny <OperationCanceledException>(
() => TaskExtensions.WaitOne(_mre, Timeout.InfiniteTimeSpan, _cts.Token));
sw.Stop();
#if !NET452
Assert.Equal(_cts.Token, exception.CancellationToken);
#else
Assert.NotNull(exception);
#endif
Assert.True(sw.Elapsed > TimeSpan.FromMilliseconds(95), sw.Elapsed.ToString());
}
public void WaitOne_ReturnsFalseImmediately_WhenNotSignaled_AndTimeoutIsZero()
{
var result = TaskExtensions.WaitOne(_mre, TimeSpan.Zero, CancellationToken.None);
Assert.False(result);
}