fix(multi-tenancy): correctly set TenantId on create in AppService

The TenantId is now automatically set when creating new entities in an AsyncCrudAppService derived class.

fixes #1360

framework/src/Volo.Abp.Ddd.Application/Volo/Abp/Application/Services/AsyncCrudAppService.cs

@@ -109,7 +109,7 @@ namespace Volo.Abp.Application.Services
 
             var entity = MapToEntity(input);
 
-            if (entity is IMultiTenant && !HasTenantIdProperty(entity))
+            if (entity is IMultiTenant && HasTenantIdProperty(entity))
             {
                 TryToSetTenantId(entity);
             }

framework/test/Volo.Abp.EntityFrameworkCore.Tests/Volo/Abp/EntityFrameworkCore/DataFiltering/MultiTenant_Creation_Tests.cs

@@ -0,0 +1,9 @@
+using Volo.Abp.TestApp.Testing;
+
+namespace Volo.Abp.EntityFrameworkCore.DataFiltering
+{
+    public class MultiTenant_Creation_Tests : MultiTenant_Creation_Tests<AbpEntityFrameworkCoreTestModule>
+    {
+        
+    }
+}

framework/test/Volo.Abp.MemoryDb.Tests/Volo/Abp/MemoryDb/DataFilters/MultiTenant_Creation_Tests.cs

@@ -0,0 +1,9 @@
+using Volo.Abp.TestApp.Testing;
+
+namespace Volo.Abp.MemoryDb.DataFilters
+{
+    public class MultiTenant_Creation_Tests : MultiTenant_Creation_Tests<AbpMemoryDbTestModule>
+    {
+        
+    }
+}

framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/DataFiltering/MultiTenant_Creation_Tests.cs

@@ -0,0 +1,9 @@
+using Volo.Abp.TestApp.Testing;
+
+namespace Volo.Abp.MongoDB.DataFiltering
+{
+    public class MultiTenant_Creation_Tests : MultiTenant_Creation_Tests<AbpMongoDbTestModule>
+    {
+        
+    }
+}

framework/test/Volo.Abp.TestApp.Tests/Volo/Abp/TestApp/Application/PersonAppService_Tests.cs

@@ -1,7 +1,13 @@
-using Microsoft.Extensions.DependencyInjection;
+using System;
+using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using System.Threading.Tasks;
+using NSubstitute;
 using Volo.Abp.Application.Dtos;
+using Volo.Abp.Domain.Repositories;
+using Volo.Abp.MultiTenancy;
+using Volo.Abp.TestApp.Application.Dto;
+using Volo.Abp.TestApp.Domain;
 using Xunit;
 
 namespace Volo.Abp.TestApp.Application
@@ -9,17 +15,52 @@ namespace Volo.Abp.TestApp.Application
     public class PersonAppService_Tests : TestAppTestBase
     {
         private readonly IPeopleAppService _peopleAppService;
+        private ICurrentTenant _fakeCurrentTenant;
 
         public PersonAppService_Tests()
         {
             _peopleAppService =  ServiceProvider.GetRequiredService<IPeopleAppService>();
         }
 
+        protected override void AfterAddApplication(IServiceCollection services)
+        {
+            _fakeCurrentTenant = Substitute.For<ICurrentTenant>();
+            services.AddSingleton(_fakeCurrentTenant);
+        }
+
         [Fact]
         public async Task GetList()
         {
             var people = await _peopleAppService.GetListAsync(new PagedAndSortedResultRequestDto());
             people.Items.Count.ShouldBeGreaterThan(0);
         }
+
+        [Fact]
+        public async Task Create()
+        {
+            var personDto = await _peopleAppService.CreateAsync(new PersonDto());
+
+            var repository = ServiceProvider.GetService<IRepository<Person, Guid>>();
+            var person = await repository.FindAsync(personDto.Id);
+
+            person.ShouldNotBeNull();
+            person.TenantId.ShouldBeNull();
+        }
+
+        [Fact]
+        public async Task Create_SetsTenantId()
+        {
+            _fakeCurrentTenant.Id.Returns(TestDataBuilder.TenantId1);
+
+            var personDto = await _peopleAppService.CreateAsync(new PersonDto());
+
+            var repository = ServiceProvider.GetService<IRepository<Person, Guid>>();
+            var person = await repository.FindAsync(personDto.Id);
+
+            person.ShouldNotBeNull();
+            person.TenantId.ShouldNotBeNull();
+            person.TenantId.ShouldNotBe(Guid.Empty);
+            person.TenantId.ShouldBe(TestDataBuilder.TenantId1);
+        }
     }
 }

framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Application/Dto/PersonDto.cs

@@ -1,12 +1,15 @@
 using System;
 using Volo.Abp.Application.Dtos;
+using Volo.Abp.MultiTenancy;
 
 namespace Volo.Abp.TestApp.Application.Dto
 {
-    public class PersonDto : EntityDto<Guid>
+    public class PersonDto : EntityDto<Guid>, IMultiTenant
     {
         public string Name { get; set; }
 
         public int Age { get; set; }
+
+        public Guid? TenantId { get; set; }
     }
 }

framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/MultiTenant_Creation_Tests.cs

@@ -0,0 +1,77 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.Extensions.DependencyInjection;
+using NSubstitute;
+using Shouldly;
+using Volo.Abp.Data;
+using Volo.Abp.Domain.Repositories;
+using Volo.Abp.Modularity;
+using Volo.Abp.MultiTenancy;
+using Volo.Abp.TestApp.Application;
+using Volo.Abp.TestApp.Application.Dto;
+using Volo.Abp.TestApp.Domain;
+using Xunit;
+
+namespace Volo.Abp.TestApp.Testing
+{
+    public abstract class MultiTenant_Creation_Tests<TStartupModule> : TestAppTestBase<TStartupModule> 
+        where TStartupModule : IAbpModule
+    {
+        private ICurrentTenant _fakeCurrentTenant;
+        private readonly IRepository<Person, Guid> _personRepository;
+        private readonly IPeopleAppService _peopleAppService;
+
+        protected MultiTenant_Creation_Tests()
+        {
+            _personRepository = GetRequiredService<IRepository<Person, Guid>>();
+            _peopleAppService = GetRequiredService<IPeopleAppService>();
+        }
+
+        protected override void AfterAddApplication(IServiceCollection services)
+        {
+            _fakeCurrentTenant = Substitute.For<ICurrentTenant>();
+            services.AddSingleton(_fakeCurrentTenant);
+        }
+
+        [Fact]
+        public async void Should_Set_TenantId_For_New_Person()
+        {
+            _fakeCurrentTenant.Id.Returns(TestDataBuilder.TenantId1);
+
+            var personId = Guid.NewGuid();
+            await _peopleAppService.CreateAsync(new PersonDto
+            {
+                Id = personId,
+                Name = "Person1",
+                Age = 21
+            });
+
+            var person = await _personRepository.FindAsync(personId);
+
+            person.ShouldNotBeNull();
+            person.TenantId.ShouldNotBeNull();
+            person.TenantId.ShouldNotBe(Guid.Empty);
+            person.TenantId.ShouldBe(TestDataBuilder.TenantId1);
+        }
+
+        [Fact]
+        public async void Should_Set_Null_TenantId_For_Host_Tenant()
+        {
+            _fakeCurrentTenant.Id.Returns((Guid?)null);
+
+            var personId = Guid.NewGuid();
+            await _peopleAppService.CreateAsync(new PersonDto
+            {
+                Id = personId,
+                Name = "Person1",
+                Age = 21
+            });
+
+            var person = await _personRepository.FindAsync(personId);
+
+            person.ShouldNotBeNull();
+            person.TenantId.ShouldBeNull();
+        }
+    }
+}