public void CTOR_Collector_Exception()
        {
            var zipkinConfigStub = CreateZipkinConfigWithDefaultValues();

            traceProvider.Expect(x => x.TraceId).Return(fixture.Create<string>());
            traceProvider.Expect(x => x.IsSampled).Return(true);

            spanCollectorStub = MockRepository.GenerateStub<SpanCollector>(MockRepository.GenerateStub<IClientProvider>(), 0);

            var expectedException = new Exception();
            spanCollectorBuilder.Expect(x => x.Build(Arg<string>.Is.Anything, Arg<int>.Is.Anything, Arg<int>.Is.Anything)).Return(spanCollectorStub);
            spanCollectorStub.Expect(x => x.Start()).Throw(expectedException); 

            var zipkinClient = new ZipkinClient(traceProvider, requestName, logger,zipkinConfigStub, spanCollectorBuilder);
            Assert.IsFalse(zipkinClient.isTraceOn);
        }