public async Task Concat9()
{
var xs = new[] { 1, 2, 3 }.ToAsyncEnumerable();
var ys = new[] { 4, 5 }.ToAsyncEnumerable();
var zs = new[] { 6, 7, 8 }.ToAsyncEnumerable();
var res = AsyncEnumerableEx.Concat(xs, ys, zs);
await SequenceIdentity(res);
}
public async Task Concat6Async()
{
var ex = new Exception("Bang");
var res = AsyncEnumerableEx.Concat(ConcatXss(ex));
var e = res.GetAsyncEnumerator();
await HasNextAsync(e, 1);
await HasNextAsync(e, 2);
await HasNextAsync(e, 3);
await HasNextAsync(e, 4);
await HasNextAsync(e, 5);
await AssertThrowsAsync(e.MoveNextAsync(), ex);
}
public async Task Concat5Async()
{
var ex = new Exception("Bang");
var xs = new[] { 1, 2, 3 }.ToAsyncEnumerable();
var ys = new[] { 4, 5 }.ToAsyncEnumerable();
var zs = Throw <int>(ex);
var res = AsyncEnumerableEx.Concat(xs, ys, zs);
var e = res.GetAsyncEnumerator();
await HasNextAsync(e, 1);
await HasNextAsync(e, 2);
await HasNextAsync(e, 3);
await HasNextAsync(e, 4);
await HasNextAsync(e, 5);
await AssertThrowsAsync(e.MoveNextAsync(), ex);
}
public async Task Concat4Async()
{
var xs = new[] { 1, 2, 3 }.ToAsyncEnumerable();
var ys = new[] { 4, 5 }.ToAsyncEnumerable();
var zs = new[] { 6, 7, 8 }.ToAsyncEnumerable();
var res = AsyncEnumerableEx.Concat(xs, ys, zs);
var e = res.GetAsyncEnumerator();
await HasNextAsync(e, 1);
await HasNextAsync(e, 2);
await HasNextAsync(e, 3);
await HasNextAsync(e, 4);
await HasNextAsync(e, 5);
await HasNextAsync(e, 6);
await HasNextAsync(e, 7);
await HasNextAsync(e, 8);
await NoNextAsync(e);
}
public void Concat_Null()
{
Assert.Throws <ArgumentNullException>(() => AsyncEnumerableEx.Concat <int>(default(IAsyncEnumerable <int>[])));
Assert.Throws <ArgumentNullException>(() => AsyncEnumerableEx.Concat <int>(default(IEnumerable <IAsyncEnumerable <int> >)));
}
