public static async Task <CollatzConsumer> Create(ICollatzProducer producer, BigInteger value)
{
var consumer = new CollatzConsumer();
consumer.Sequence = await producer.ProduceAsync(value);
return(consumer);
}
public async Task ConsumeWithError()
{
var value = new BigInteger(4);
var producer = new Mock <ICollatzProducer>(MockBehavior.Strict);
producer.Setup(_ => _.ProduceAsync(value))
.Returns(Task.Run <IReadOnlyList <BigInteger> >(
new Func <IReadOnlyList <BigInteger> >(() => { throw new NotSupportedException(); })));
await CollatzConsumer.Create(producer.Object, value);
}
public async Task Consume()
{
var value = new BigInteger(4);
var expectedSequence = new List <BigInteger>
{
new BigInteger(4), new BigInteger(2), new BigInteger(1)
}.AsReadOnly();
var producer = new Mock <ICollatzProducer>(MockBehavior.Strict);
producer.Setup(_ => _.ProduceAsync(value))
.Returns(Task.FromResult <IReadOnlyList <BigInteger> >(expectedSequence));
var consumer = await CollatzConsumer.Create(producer.Object, value);
Assert.AreEqual(expectedSequence.Count, consumer.Sequence.Count);
for (var i = 0; i < expectedSequence.Count; i++)
{
Assert.AreEqual(expectedSequence[i], consumer.Sequence[i]);
}
producer.VerifyAll();
}
