public void TestSink_Probe_ExpectNextOrError_fail_if_the_next_element_is_not_the_expected_one()
{
Record.Exception(() =>
{
Source.From(Enumerable.Range(1, 4)).RunWith(this.SinkProbe<int>(), _materializer)
.Request(4)
.ExpectNextOrError(100, Ex());
}).Message.Should().Contain("OnNext(100)");
}