NServiceBus Test.Initialize() given key was not present

Question

Update just read the Google group in more detail and apparently it's a app config issue. Will update post after trying.

I was wondering if anyone knows of this issue when attempting to unit test NServiceBus.

Realise I have two initialize methods below but this is to illustrate what I am trying to do. Stack trace based on request.

(NServiceBus.LocalAddress) was not present in the dictionary. (NServiceBus.LocalAddress) was not present in the dictionary.

Other part of the stack trace I believe is a red herring complaining about InMemoryPersistence. However, there is a Google group talking about this issue too who experienced the same issue which makes me think it's more of an NServiceBus issue rather than a coding mistake.

Google group link https://groups.google.com/forum/m/#!topic/particularsoftware/424_6KCv6oI

Should mention seen these posts.

https://github.com/Particular/NServiceBus.Testing/issues/20 https://github.com/Particular/NServiceBus.Testing/commit/f761c5391b03b05d967f2e368248c72522051d59

public static class CustomInit
    {
        public static void Init()
        {
            //Previous versions of NBUS, specifically 4.6.5
            //MessageConventionExtensions.IsEventTypeAction = MessageConfiguration.ForEvents();
            //MessageConventionExtensions.IsCommandTypeAction = MessageConfiguration.ForCommands();            

            //New 5.2.0 how to setup tests
            Test.Initialize(x => x.AssembliesToScan(GetAssembliesToScan()));

            Test.Initialize(
                x =>
                {
                    x.Conventions().DefiningCommandsAs([my namespace]);
                    x.Conventions().DefiningEventsAs([my namespace]);
                    x.AssembliesToScan(GetAssembliesToScan());
                });
        }

        private static IEnumerable<Assembly> GetAssembliesToScan()
        {
            return new[]
            {
                AssemblyFromType<ISomeInterface>()
            };
        }
}

Updated though there's plenty more mainly complaining about persistent storage but this is the error — Dr Schizo, Feb 25 '15 at 22:34
So you are saying upgrading to latest update which includes issue/20 didn't help? — Daniel Marbach, Feb 27 '15 at 08:23
I have all the latest assemblies, i.e. NServiceBus 5.2.0 and NServiceBus.Testing 5.0.4 and NUnit 2.6.4 which shouldn't matter but added just in case. — Dr Schizo, Feb 27 '15 at 09:17

score 6 · Accepted Answer · answered Mar 02 '15 at 10:17

After raising the issue on GitHub found that need to include NServiceBus.Testing as part of the assembly scanning. For example:

Should point out also, for further information I would visit the GitHub link. Further detail about the issue and an explanation can be found there.

    public static void Init()
    {
        Test.Initialize(
            x =>
            {
                x.Conventions().DefiningCommandsAs(x => x.Namespace.Contains("Commands"));
                x.Conventions().DefiningEventsAs(x => x.Namespace.Contains("Events"));
                x.AssembliesToScan(GetAssembliesToScan());
            });
    }

    private static IEnumerable<Assembly> GetAssembliesToScan()
    {
        return new[]
        {
            AssemblyFromType<ISomeInterface>(),
            Assembly.LoadFrom("NServiceBus.Testing.dll")
        };
    }

The key point being this Assembly.LoadFrom("NServiceBus.Testing.dll")

Cheers, DS.

Thanks. I can see that the problem was fixed in NServiceBus.Testing 5.0.4 — Jason Duffett, Mar 18 '15 at 16:24
Yeah it's related to a specific version and fixed if you were to use latest. — Dr Schizo, Nov 03 '16 at 14:29

score 1 · Answer 2 · answered Jan 17 '17 at 09:46

In my case, the tests were failing with this error message in NCrunch.

That's probably because NCrunch was running the tests from the following location:

C:\Users\[username]\AppData\Local\NCrunch\...

The solution was to go to:

NCrunch -> Configuration

Select the project affected and set the flag 'Copy referenced assemblies to workspace' to True.

NServiceBus Test.Initialize() given key was not present

Update just read the Google group in more detail and apparently it's a app config issue. Will update post after trying.

2 Answers2