public void CorrelationData_Add_WithNullValue_ShouldThrowException() { try { FailOnErrors = false; Correlation = new Correlation(new MemoryCorrelationHandler(), CallContextManagerInstance, MachineInformation); Correlation.CorrelationStart(null); Assert.Throws <ArgumentNullException>(() => { Correlation.CorrelationAdd("key", null); }); } finally { EndRequest(); } }