public async Task Cancellation___OK()
{
var sut = new SwingingDoorCompression(1d);
var data = RawDataAsync(RawDataForTrend());
var expected = ExpectedForTrend().Take(2).ToList();
DataPointIterator dataPointIterator = sut.ProcessAsync(data);
var cts = new CancellationTokenSource();
var enumerator = dataPointIterator.GetAsyncEnumerator(cts.Token);
var actual = new List <DataPoint>();
await enumerator.MoveNextAsync();
actual.Add(enumerator.Current);
await enumerator.MoveNextAsync();
actual.Add(enumerator.Current);
cts.Cancel();
DataPoint[] res = null;
Assert.ThrowsAsync <OperationCanceledException>(async() => res = await dataPointIterator.ToArrayAsync(cts.Token));
CollectionAssert.AreEqual(expected, actual);
Assert.IsNull(res);
}
public async ValueTask <DataPoint[]> ToArray()
{
IAsyncEnumerable <DataPoint> source = this.SourceAsync();
DataPointIterator filtered = source.DeadBandCompressionAsync(0.1);
return(await filtered.ToArrayAsync());
}
public async Task MoveNextAsync___false()
{
DataPointIterator sut = DataPointIterator.Empty;
Assert.AreSame(Array.Empty <DataPoint>(), await sut.ToArrayAsync());
Assert.AreEqual(0, (await sut.ToListAsync()).Count);
}
public async Task IEnumerable_iterated_and_ToArray___OK(double compressionDeviation, IAsyncEnumerable <DataPoint> rawData, IEnumerable <DataPoint> expectedData)
{
var sut = new SwingingDoorCompression(compressionDeviation);
var data = rawData;
var expected = expectedData.ToList();
DataPointIterator dataPointIterator = sut.ProcessAsync(data);
var enumerator = dataPointIterator.GetAsyncEnumerator();
await enumerator.MoveNextAsync();
await enumerator.MoveNextAsync();
var actual = await dataPointIterator.ToArrayAsync();
CollectionAssert.AreEqual(expected, actual);
}
public async Task IEnumerable_iterated_and_ToArray___OK()
{
var sut = new DeadBandCompression(0.1);
var data = RawDataForTrendAsync();
var expected = ExpectedForTrend().ToList();
DataPointIterator dataPointIterator = sut.ProcessAsync(data);
var enumerator = dataPointIterator.GetAsyncEnumerator();
await enumerator.MoveNextAsync();
await enumerator.MoveNextAsync();
var actual = await dataPointIterator.ToArrayAsync();
CollectionAssert.AreEqual(expected, actual);
}