public void PushValuesAfterComplete()
{
var valueStack = new Stack <int>();
var errorStack = new Stack <Exception>();
bool isComplete = false;
var obs = new PushSubject <int>();
var sobs = new[] { new PushSubject <int>(), new PushSubject <int>() };
var output = obs.SwitchMap(i => sobs[i]);
output.Subscribe(valueStack.Push, () => isComplete = true, errorStack.Push);
obs.PushValue(0);
Assert.AreEqual(0, valueStack.Count, "no value should be in the output stream");
sobs[0].PushValue(1);
Assert.AreEqual(1, valueStack.Peek(), "values from the input streams should be in the output stream");
sobs[1].PushValue(2);
Assert.AreEqual(1, valueStack.Count, "values from the input streams that are not used should not be in the output stream");
var ex = new Exception();
sobs[0].PushException(ex);
Assert.IsTrue(Object.ReferenceEquals(ex, errorStack.Peek()), "errors from the input streams should be in the output stream");
obs.PushValue(1);
Assert.AreEqual(1, valueStack.Count, "no more values from the input streams should be in the output stream");
sobs[0].PushValue(3);
Assert.AreNotEqual(3, valueStack.Peek(), "values from the first input stream should not be in the output stream anymore");
sobs[1].PushValue(4);
Assert.AreEqual(4, valueStack.Peek(), "values from the input streams should be in the output stream");
obs.Complete();
Assert.IsFalse(isComplete, "the output stream should not be completed unless its current sub stream is completed");
sobs[0].Complete();
Assert.IsFalse(isComplete, "the output stream should not be completed unless its current sub stream is completed");
sobs[1].PushValue(6);
Assert.AreEqual(6, valueStack.Peek(), "values from the input streams should not be in the output stream");
sobs[1].Complete();
Assert.IsTrue(isComplete, "the output stream should be completed as its current sub stream is completed");
}
