public async Task T02_ToStrings()
{
byte[]? xxx = null;
Assert.Throws <ArgumentNullException>(() => ConversionsEx.ToStrings(xxx).ToList()); // should have warning?
await Assert.ThrowsAsync <ArgumentNullException>(async() =>
await ((byte[]?)null).ToObservable().ToStrings().ToList()); // should have warning?
// no termination
Assert.Throws <InvalidDataException>(() => new byte[] { 65 }.ToStrings().ToList());
await Assert.ThrowsAsync <InvalidDataException>(async() =>
await new byte[] { 65 }.ToObservable().ToStrings().ToList());
var observable = Observable.Throw <byte>(new ArithmeticException()).ToStrings();
await Assert.ThrowsAsync <ArithmeticException>(async() => await observable);
}
