Nunit testing System.NullReferenceException

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I'm new to NUnit testing and i received the following error:
Message: System.NullReferenceException : Object reference not set to an instance of an object

my test is a follows

C#

[Test]
        public void TestCheckConsumer()
        {
            Services check = new Services();
            CheckStockResponse response = check.CheckStock(new Credentials(), new CheckInput());
            Assert.AreEqual(Status.Registered, response);
        }

is a mock required or can i just create sample data in the test setup

Posted 7-Aug-14 1:17am

Ignitius

Updated 7-Aug-14 1:37am

v2

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Bernhard Hiller · Accepted Answer · 2014-08-07T03:07:00

NUnit Tests can be debugged - try that! Visual Nunit is sometimes a bit mulish, but with patience and trying it again, it can be accomplished.
It is important to find out where the crash actually happens. Already in the constructor of Services()? Or in its CheckStock function?
Note that the .exe.config file used here is that of NUnit by default, i.e. when you need to access configuartion settings, things get a little harder to do them right.