public async Task Can_Establish_Id_Context()
{
var actual = new OperationIdCollectingMiddleware();
var sut = new OperationIdContextMiddleware(
actual,
new OperationIdContextMiddlewareConfiguration());
await sut.Invoke(new MockOwinContext());
actual.OperationIdFromAmbientContext.Should().NotBeNullOrEmpty();
actual.OperationIdFromAmbientContext.Should()
.Be(actual.OperationIdFromEnvironment);
}