public async Task OnNextAsync_TracerIsNull_DoesNotThrowException()
{
// Arrange
var sut = new TracingObserver <MockMessage>(_observerMock.Object);
// Act
await sut.OnNextAsync(new MockMessage());
// Assert
_observerMock.Verify(x => x.OnNextAsync(It.IsAny <MockMessage>(), It.IsAny <StreamSequenceToken>()), Times.Once);
VerifyNotOtherCalls();
}
public async Task OnNextAsync_WithTracing_Success()
{
// Arrange
var spanMock = new Mock <TelemetrySpan>();
_tracerMock.Setup(x => x.StartSpanFromActivity(It.IsAny <string>(), It.IsAny <Activity>(), SpanKind.Consumer, null))
.Returns(spanMock.Object);
var sut = new TracingObserver <MockMessage>(_observerMock.Object, _tracerMock.Object);
// Act
await sut.OnNextAsync(new MockMessage());
// Assert
_tracerMock.Verify(x => x.StartSpanFromActivity(It.IsAny <string>(), It.IsAny <Activity>(), SpanKind.Consumer, null), Times.Once);
_observerMock.Verify(x => x.OnNextAsync(It.IsAny <MockMessage>(), It.IsAny <StreamSequenceToken>()), Times.Once);
spanMock.Verify(x => x.End(), Times.Once);
VerifyNotOtherCalls();
}
