public async Task MatchOutputsByInputAndResult()
{
var batcher = BatchExecutorFactory.Create(
new BatchPolicy(
maxAge: TimeSpan.FromDays(1),
maxBatchSize: 3),
async(IEnumerable <double> values) =>
{
var result = values.Reverse().Select(i => Tuple.Create((int)i, i.ToString())).ToList();
return((IList <Tuple <int, string> >)result);
},
OutputToInputMatchFunction.CreateByMatchingPartOfInputAndResult(
(double input) => (int)input,
(int resultIndex, Tuple <int, string> resultValue) => resultValue.Item1));
var task1 = batcher.ExecuteAsync(1.0);
var task2 = batcher.ExecuteAsync(2.0);
var task3 = batcher.ExecuteAsync(3.0);
task1.Wait(TimeSpan.FromMilliseconds(100));
Assert.AreEqual("1", task1.Result.Item2);
Assert.AreEqual("2", task2.Result.Item2);
Assert.AreEqual("3", task3.Result.Item2);
}
public async Task TimeBatch()
{
var batcher = BatchExecutorFactory.Create(
new BatchPolicy(
maxAge: TimeSpan.FromSeconds(1),
maxBatchSize: int.MaxValue),
(IEnumerable <int> values) => Task.FromResult((IList <int>)values.ToList()),
OutputToInputMatchFunction.OutputOrderMatchesInputOrder);
var task1 = batcher.ExecuteAsync(1);
var task2 = batcher.ExecuteAsync(2);
await Task.Delay(100);
Assert.IsFalse(task1.IsCompleted);
Assert.IsFalse(task1.IsCompleted);
task1.Wait(TimeSpan.FromSeconds(1));
Assert.IsTrue(task1.IsCompleted);
Assert.IsTrue(task2.IsCompleted);
Assert.AreEqual(1, task1.Result);
Assert.AreEqual(2, task2.Result);
}
public async Task SingleItemTest()
{
int singleCalls = 0;
int batchCalls = 0;
var batcher = BatchExecutorFactory.Create(
new BatchPolicy(
maxAge: TimeSpan.FromDays(1),
maxBatchSize: 1),
(int value) =>
{
singleCalls++;
return(Task.FromResult(value));
},
(IEnumerable <int> values) =>
{
batchCalls++;
return(Task.FromResult((IList <int>)values.ToList()));
},
OutputToInputMatchFunction.OutputOrderMatchesInputOrder);
var task1 = batcher.ExecuteAsync(1);
task1.Wait(TimeSpan.FromMilliseconds(100));
Assert.IsTrue(task1.IsCompleted);
Assert.AreEqual(1, task1.Result);
Assert.AreEqual(1, singleCalls);
Assert.AreEqual(0, batchCalls);
}
public void DisposeCancels()
{
var batcher = BatchExecutorFactory.Create(
new BatchPolicy(
maxAge: TimeSpan.FromSeconds(1),
maxBatchSize: int.MaxValue),
(IEnumerable <int> values) => Task.FromResult((IList <int>)values.ToList()),
OutputToInputMatchFunction.OutputOrderMatchesInputOrder);
var task1 = batcher.ExecuteAsync(1);
var task2 = batcher.ExecuteAsync(2);
Assert.IsFalse(task1.IsCompleted);
Assert.IsFalse(task2.IsCompleted);
batcher.Dispose();
Assert.IsFalse(task1.IsCanceled);
Assert.IsFalse(task2.IsCanceled);
}
