static async Task ConcatAsync()
{
await
AsyncObservable.Concat(
AsyncObservable.Range(0, 5),
AsyncObservable.Range(5, 5),
AsyncObservable.Range(10, 5),
AsyncObservable.Range(15, 5)
)
.SubscribeAsync(Print <int>()); // TODO: Use ForEachAsync.
}
public async Task Params0()
{
string result = "";
await AsyncObservable
.Concat(new IAsyncObservable <int>[] { })
.Finally(() => result += "F")
.SubscribeAsync(i => result += i, ex => result += "E", () => result += "C");
result
.Should().Be("CF");
}
public async Task Params1()
{
string result = "";
var obs1 = AsyncObservable.Range(0, 3).Finally(() => result += ",");
await AsyncObservable
.Concat(obs1)
.Finally(() => result += "F")
.SubscribeAsync(i => result += i, ex => result += "E", () => result += "C");
result
.Should().Be("012,CF");
}
public void ArgumentExceptions()
{
var obs1 = default(IAsyncObservable <IAsyncObservable <int> >);
var obs2 = default(IAsyncObservable <int>[]);
var obs3 = default(IEnumerable <IAsyncObservable <int> >);
obs1.Invoking(o => o.Concat())
.Should().Throw <ArgumentNullException>();
obs2.Invoking(o => AsyncObservable.Concat(o))
.Should().Throw <ArgumentNullException>();
obs3.Invoking(o => o.Concat())
.Should().Throw <ArgumentNullException>();
}
public async Task Params3Null2()
{
string result = "";
var obs1 = AsyncObservable.Range(0, 3).Finally(() => result += ",");
var obs2 = default(IAsyncObservable <int>);
var obs3 = default(IAsyncObservable <int>);
await AsyncObservable
.Concat(obs1, obs2, obs3)
.Finally(() => result += "F")
.SubscribeAsync(i => result += i, ex => result += "E", () => result += "C");
result
.Should().Be("012,EF");
}
public async Task Params3Error2()
{
string result = "";
var obs1 = AsyncObservable.Range(0, 3).Finally(() => result += ",");
var obs2 = AsyncObservable.Throw <int>(new Exception());
var obs3 = AsyncObservable.Throw <int>(new Exception());
await AsyncObservable
.Concat(obs1, obs2, obs3)
.Finally(() => result += "F")
.SubscribeAsync(i => result += i, ex => result += "E", () => result += "C");
result
.Should().Be("012,EF");
}