How design patterns can help you in developing unit testing-enabled applications

Marcelo Ricardo de Oliveira

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15 Nov 2007CPOL15 min read

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This article shows how you can mix together Model-View-Presenter, Domain Model, Services, ActiveRecord, and Repository patterns to create a testable application.

northwind.zip
- Castle.ActiveRecord.dll
- Castle.Core.dll
- Iesi.Collections.dll
- log4net.dll
- NHibernate.dll
- NMock2.dll
- Northwind.DataAccess.Test
  - appconfig.xml
  - CustomerRepositoryTest.cs
  - InMemoryCustomerRepositoryTest.cs
  - Northwind.DataAccess.Test.csproj
  - Northwind.DataAccess.Test.csproj.user
  - Properties
    - AssemblyInfo.cs
- Northwind.DataAccess
  - appconfig.xml
  - DataAccessHelper.cs
  - Northwind.DataAccess.csproj
  - Northwind.DataAccess.csproj.user
  - Properties
    - AssemblyInfo.cs
  - Query
  - Repository
- Northwind.Domain.Test
  - appconfig.xml
  - CustomerTest.cs
  - Northwind.Domain.Test.csproj
  - Northwind.Domain.Test.csproj.user
  - Properties
    - AssemblyInfo.cs
- Northwind.Domain
  - Dao
  - DomainBase.cs
  - IDomainBase.cs
  - MappedTOAttribute.cs
  - Model
  - Northwind.Domain.csproj
  - Northwind.Domain.csproj.user
  - Presentation
  - Properties
    - AssemblyInfo.cs
  - Repository
  - TransferObjects
  - ValueNotInformedException.cs
- Northwind.Presentation.Test
  - appconfig.xml
  - Northwind.Presentation.Test.csproj
  - Northwind.Presentation.Test.csproj.user
  - Properties
    - AssemblyInfo.cs
  - TestResult.xml
  - ViewCustomerPresenterTest.cs
- Northwind.Presentation
  - IViewCustomerView.cs
  - Northwind.Presentation.csproj
  - Northwind.Presentation.csproj.user
  - Properties
    - AssemblyInfo.cs
  - ViewCustomerPresenter.cs
- Northwind.Services.Test
  - appconfig.xml
  - CustomerServicesTest.cs
  - Northwind.Services.Test.csproj
  - Northwind.Services.Test.csproj.user
  - Properties
    - AssemblyInfo.cs
- Northwind.Services
  - CustomerServices.cs
  - ICustomerServices.cs
  - Northwind.Services.csproj
  - Northwind.Services.csproj.user
  - Properties
    - AssemblyInfo.cs
- NorthWind.sln
- Northwind.TransferObjects.Test
  - Northwind.TransferObjects.Test.csproj
  - Northwind.TransferObjects.Test.csproj.user
  - Properties
    - AssemblyInfo.cs
  - TestResult.xml
  - TOHelperTest.cs
- Northwind.TransferObjects
  - Model
    - CustomerTO.cs
    - OrderTO.cs
  - Northwind.TransferObjects.csproj
  - Northwind.TransferObjects.csproj.user
  - Presentation
  - Properties
    - AssemblyInfo.cs
- Northwind.UI.Controls
  - Northwind.UI.Controls.csproj
  - Northwind.UI.Controls.csproj.user
  - Properties
    - AssemblyInfo.cs
  - WinActionButton.cs
  - WinLookupList.cs
  - WinOrderList.cs
  - WinPanel.cs
- Northwind.UI
  - appconfig.xml
  - Northwind.UI.csproj
  - Northwind.UI.csproj.user
  - NorthWind.UI.suo
  - Program.cs
  - Properties
  - ViewCustomers.cs
  - ViewCustomers.Designer.cs
  - ViewCustomers.resx
- nunit.framework.dll

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!--This file represents the results of running a test suite-->
<test-results name="C:\Deploy\CodeProject\Northwind\1.0\Northwind.Presentation.Test\Northwind.Presentation.Test.csproj" total="8" failures="0" not-run="0" date="2002-01-01" time="02:08:30">
  <environment nunit-version="2.4.1.0" clr-version="2.0.50727.42" os-version="Microsoft Windows NT 5.1.2600 Service Pack 2" platform="Win32NT" cwd="C:\Deploy\CodeProject\Northwind\1.0\Northwind.Presentation.Test" machine-name="SATELLITE" user="Bruno" user-domain="SATELLITE" />
  <culture-info current-culture="pt-BR" current-uiculture="pt-BR" />
  <test-suite name="C:\Deploy\CodeProject\Northwind\1.0\Northwind.Presentation.Test\Northwind.Presentation.Test.csproj" success="True" time="7.391" asserts="0">
    <results>
      <test-suite name="C:\Deploy\CodeProject\Northwind\1.0\Northwind.Presentation.Test\bin\Debug\Northwind.Presentation.Test.dll" success="True" time="7.391" asserts="0">
        <results>
          <test-suite name="Northwind" success="True" time="7.391" asserts="0">
            <results>
              <test-suite name="Presentation" success="True" time="7.375" asserts="0">
                <results>
                  <test-suite name="Test" success="True" time="7.375" asserts="0">
                    <results>
                      <test-suite name="ViewCustomerPresenterTest" success="True" time="7.313" asserts="0">
                        <results>
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.DeleteCustomerTest" executed="True" success="True" time="0.625" asserts="0" />
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.EditCustomerTest" executed="True" success="True" time="0.063" asserts="0" />
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.InitializeTest" executed="True" success="True" time="0.000" asserts="0" />
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.NewCustomerTest" executed="True" success="True" time="0.016" asserts="0" />
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.SaveCustomerTest" executed="True" success="True" time="0.016" asserts="0" />
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.SelectedCustomerChangedTest" executed="True" success="True" time="0.016" asserts="0" />
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.ShowDatabaseTest" executed="True" success="True" time="6.516" asserts="0" />
                          <test-case name="Northwind.Presentation.Test.ViewCustomerPresenterTest.ShowInMemoryTest" executed="True" success="True" time="0.031" asserts="0" />
                        </results>
                      </test-suite>
                    </results>
                  </test-suite>
                </results>
              </test-suite>
            </results>
          </test-suite>
        </results>
      </test-suite>
    </results>
  </test-suite>
</test-results>

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By

Marcelo Ricardo de Oliveira

Instructor / Trainer Alura Cursos Online

Brazil

Marcelo Ricardo de Oliveira is a senior freelance software developer who lives with his lovely wife Luciana and his little buddy and stepson Kauê in Guarulhos, Brazil, is co-founder of the Brazilian TV Guide TV Map and currently works for Alura Cursos Online .

He is often working with serious, enterprise projects, although in spare time he's trying to write fun Code Project articles involving JavaScript, WPF, Silverlight, XNA, HTML5 canvas, Windows Phone app development, game development and music.

Online Courses (in Portuguese):

Entity LinQ parte 1: Crie queries poderosas em C#
Entity LinQ parte 2: Store Procedures e consultas com o LinQPad
Xamarin parte 1: crie aplicativos mobile com Visual Studio
ASP.NET Core parte 1: Crie uma aplicação MVC com EF Core e Bootstrap
C# Brasil: Formate datas, cpf e números nacionais
C#: Dominando as Collections

How design patterns can help you in developing unit testing-enabled applications

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