public void DoWithError()
{
var valueStack = new Stack <int>();
var doStack = new Stack <int>();
var errorStack = new Stack <Exception>();
bool isComplete = false;
var obs1 = new PushSubject <int>();
var output = obs1.Do(i => doStack.Push(1 / i));
output.Subscribe(valueStack.Push, () => isComplete = true, errorStack.Push);
obs1.PushValue(0);
Assert.AreEqual(0, valueStack.Peek(), "value should be submitted");
Assert.AreEqual(0, doStack.Count, "no value should be sent");
Assert.IsFalse(isComplete, "the stream should not be completed");
obs1.PushValue(2);
Assert.AreEqual(2, valueStack.Peek(), "value should be submitted");
Assert.AreEqual(1 / 2, doStack.Peek(), "value should be submitted");
Assert.IsFalse(isComplete, "the stream should not be completed");
Assert.AreEqual(2, valueStack.Count, "no value should be submitted");
Assert.AreEqual(1, doStack.Count, "no value should be submitted");
}
