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Getting extension in unit test returns null

  • 16 December 2022
  • 5 replies
  • 128 views
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Hi, I’m trying to create a unit test for my Extension Library, but retrieving a DAC Extension always returns null for some reason. I followed all the steps in T280 course but I still can’t get the DAC Extension. I am currently trying to create unit tests for version 22R1. Here is the code snippet:

 

using Xunit;
using PX.Data;
using PX.Tests.Unit;
using PX.Objects.CA;
using Custom.DAC;
using PX.Objects.GL;

namespace Customization.Tests
{
    public class CashAccountMaintExtTest : TestBase
    {
        [Fact]
        public void TestingCashAccountExtension()
        {
            Setup<CashAccountMaint>(new GLSetup());
            Setup<CashAccountMaint>(new CASetup());
            var graph = PXGraph.CreateInstance<CashAccountMaint>();

            CashAccount cashAccount = (CashAccount) graph.Caches[typeof(CashAccount)].Insert(
                    new CashAccount
                    {
                        CashAccountCD = "Test"
                    }
                );

            //This always returns null
            var cashAccountExt = cashAccount.GetExtension<CustomCashAccountExt>();
        }
    }
}

 

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Best answer by naufal58 9 January 2023, 13:19

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5 replies

Dmitrii Naumov
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Userlevel 7
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Is your extension in a separate dll? You can try something like that in the test constructor:


    AppDomain.CurrentDomain.Load("YourDll");

 

Does it help?

N
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Userlevel 2
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Hi Dmitrii thanks for the reply, I tried the solution. So, for reference here’s the change:
 

public class CashAccountMaintExtTest : TestBase
    {
        public CashAccountMaintExtTest()
        {
            AppDomain.CurrentDomain.Load("Customization");
        }

        [Fact]
        public void AccountTypeAndDefaultReferenceType()
        {

            Setup<CashAccountMaint>(new GLSetup());
            Setup<CashAccountMaint>(new CASetup());
            var graph = PXGraph.CreateInstance<CashAccountMaint>();

            CashAccount cashAccount = (CashAccount) graph.Caches[typeof(CashAccount)].Insert(
                    new CashAccount
                    {
                        CashAccountCD = "Test"
                    }
                );

            var cashAccountExt = cashAccount.GetExtension<CustomCashAccountExt>();

            Assert.NotNull(cashAccountExt);
        }
    }

The reference to the project is called “Customization” and the test project already references it in the same solution. However the test still returns a fail.

Dmitrii Naumov
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Userlevel 7
Badge +5

Could you share the entire project for me to try on my side?

N
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I’ve finally found the reason for the error. I’ve been referencing the extension library project this whole time. When I switched to referencing the .dll file of the extension library from the bin folder of the instance the GetExtension<> method now returns the extension.

Chris Hackett
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Userlevel 7
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Thank you for sharing your solution with the community @naufal58 !

Chris ~ Let us know how we're doing: https://forms.office.com/r/xmJUdZ1QE5 - A member helped you, please *Like* their post. A member provided an answer to your question, please mark it as *Best Answer*.

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