Exception When creating BUnit tests for Blazor #1979

0

alper created 3 years ago

Support Team Director

@maliming will help you on that.

0

maliming created 3 years ago

Support Team Fullstack Developer

hi Thomas

Can you share your steps and code to reproduce the problem?

0

Jesse.Thomas@condoauthorityontario.ca created 3 years ago

Hi Maliming,

I have a method in my razor.cs class :

      protected virtual async Task SetPermissionsAsync()
        {
            HasEditPermission =  await AuthorizationService.IsGrantedAsync(UpdatePolicyName);
        }

This returns an IAuthorizationService, and comes from the static class AbpAuthorizationServiceExtensions. This method is first Initialized in the following start up method in the razor component:

        protected override async Task OnInitializedAsync()
        {
            await SetPermissionsAsync();
        }

This is where the error occurs. I need to pass an instance of the IAuthorizationService to the component during the test. Here is the test I wrote:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Bunit;
using Bunit.TestDoubles;
using Cao.CatOs.Blazor.Pages;
using Cao.CatOs.Blazor.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.DependencyInjection;
using NSubstitute;
using Volo.Abp.Authorization;
using Volo.Abp.LanguageManagement;
using Xunit;

namespace Cao.CatOs.Blazor.Tests
{
    public class MultilingualComponent
    {
        protected string UpdatePolicyName = LanguageManagementPermissions.LanguageTexts.Edit;
        [Fact]
        public void Should_ReturnMultilingualExportHeader_ForRenderedComponent()
        {
      
            // Arrange
            using var ctx = new TestContext();
            var authContext = ctx.AddTestAuthorization();
            authContext.SetAuthorized("admin");
            //TODO:Mock parameters for CustomLanguageService using NSubstitute
            var languageManagement = Substitute.For<ICustomLanguageTextAppService>();
            var navigationManager = Substitute.For<INavigationService>();
            var component = Substitute.For<CatOsComponentBase>();
            ctx.Services.AddSingleton(component);
            ctx.Services.AddSingleton(languageManagement);
            ctx.Services.AddSingleton(navigationManager);
            // Act
            var cut = ctx.RenderComponent<Multilingual>();

            // Assert
            cut.MarkupMatches("<h3>Multilingual Export</h3>");
        }
    }
}

The error occurs on the //Act line . The exception is :

Volo.Abp.AbpException
authorizationService should implement Volo.Abp.Authorization.IAbpAuthorizationService
   at Microsoft.AspNetCore.Authorization.AbpAuthorizationServiceExtensions.AsAbpAuthorizationService(IAuthorizationService authorizationService)
   at Microsoft.AspNetCore.Authorization.AbpAuthorizationServiceExtensions.AuthorizeAsync(IAuthorizationService authorizationService, Object resource, String policyName)
   at Microsoft.AspNetCore.Authorization.AbpAuthorizationServiceExtensions.AuthorizeAsync(IAuthorizationService authorizationService, String policyName)
   at Microsoft.AspNetCore.Authorization.AbpAuthorizationServiceExtensions.IsGrantedAsync(IAuthorizationService authorizationService, String policyName)
   at Cao.CatOs.Blazor.Pages.Multilingual.SetPermissionsAsync() in C:\CAT-OS\src\Cao.CatOs.Blazor\Pages\Multilingual.razor.cs:line 49
   at Cao.CatOs.Blazor.Pages.Multilingual.OnInitializedAsync() in C:\CAT-OS\src\Cao.CatOs.Blazor\Pages\Multilingual.razor.cs:line 38
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
   at Bunit.Rendering.TestRenderer.AssertNoUnhandledExceptions() in /_/src/bunit.core/Rendering/TestRenderer.cs:line 355
   at Bunit.Rendering.TestRenderer.Render[TResult](RenderFragment renderFragment, Func`2 activator) in /_/src/bunit.core/Rendering/TestRenderer.cs:line 237
   at Bunit.Rendering.TestRenderer.RenderFragment(RenderFragment renderFragment) in /_/src/bunit.core/Rendering/TestRenderer.cs:line 55
   at Bunit.Extensions.TestContextBaseRenderExtensions.RenderInsideRenderTree(TestContextBase testContext, RenderFragment renderFragment) in /_/src/bunit.core/Extensions/TestContextBaseRenderExtensions.cs:line 45
   at Bunit.Extensions.TestContextBaseRenderExtensions.RenderInsideRenderTree[TComponent](TestContextBase testContext, RenderFragment renderFragment) in /_/src/bunit.core/Extensions/TestContextBaseRenderExtensions.cs:line 25
   at Bunit.TestContext.Render[TComponent](RenderFragment renderFragment) in /_/src/bunit.web/TestContext.cs:line 70
   at Bunit.TestContext.RenderComponent[TComponent](ComponentParameter[] parameters) in /_/src/bunit.web/TestContext.cs:line 40
   at Cao.CatOs.Blazor.Tests.MultilingualComponent.Should_ReturnMultilingualExportHeader_ForRenderedComponent() in C:\CAT-OS\Cao.CatOs.Blazor.Tests\MultilingualComponent.cs:line 38

The question I have is how do I inject / mock the object Volo.Abp.Authorization.IAbpAuthorizationService, so my test picks it up? Just to be clear I am using BUnit, and my razor component inherits from the AbpComponentBase. This is why when I run the page IABPAuthorizationService exists, however in a unit test it is null.

What I would like is an example of how to take a standard Razor componet that properly implements the ABP framework and write a unit test for it using BUnit. I am sure you will find there are quite a few items that need to be mocked and injected, in order to get it to work properly. Do you have an example I can use to follow along?

Thanks,

Jesse

0

maliming created 3 years ago

Support Team Fullstack Developer

We may need to rewrite some BUnit services, can you share a simple project? liming.ma@volosoft.com

0

Jesse.Thomas@condoauthorityontario.ca created 3 years ago

Thanks Maliming.... I am going to send you a test project shortly with details on what exactly is failing.

0

maliming created 3 years ago

Support Team Fullstack Developer

hi

Please check the commit of init2.

https://github.com/maliming/CATOSTest/commits/main

https://github.com/maliming/CATOSTest/invitations

0

Jesse.Thomas@condoauthorityontario.ca created 3 years ago

Thanks Maliming! This helped alot, and fixed my issues....

Jesse

7 Answer(s)