Created unit test for Crud application service.

src/Volo.Abp/Volo/Abp/AbpServiceBase.cs

@@ -1,6 +1,7 @@
 using System;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
+using Volo.Abp.Guids;
 using Volo.Abp.ObjectMapping;
 using Volo.Abp.Uow;
 
@@ -12,6 +13,8 @@ namespace Volo.Abp
 
         public IObjectMapper ObjectMapper { get; set; }
 
+        public IGuidGenerator GuidGenerator { get; set; }
+
         protected IUnitOfWork CurrentUnitOfWork => UnitOfWorkManager?.Current;
 
         public ILoggerFactory LoggerFactory { get; set; }
@@ -23,5 +26,10 @@ namespace Volo.Abp
            - Setting manager
            - Localization manager and helper methods
          */
+
+        protected AbpServiceBase()
+        {
+            GuidGenerator = SimpleGuidGenerator.Instance;
+        }
     }
 }

src/Volo.Abp/Volo/Abp/Application/Services/CrudAppServiceBase.cs

@@ -18,7 +18,7 @@ namespace Volo.Abp.Application.Services
         where TUpdateInput : IEntityDto<TPrimaryKey>
     {
         protected IQueryableRepository<TEntity, TPrimaryKey> Repository { get; }
-
+        
         protected virtual string GetPermissionName { get; set; }
 
         protected virtual string GetAllPermissionName { get; set; }
@@ -115,7 +115,16 @@ namespace Volo.Abp.Application.Services
         /// </summary>
         protected virtual TEntity MapToEntity(TCreateInput createInput)
         {
-            return ObjectMapper.Map<TCreateInput, TEntity>(createInput);
+            var entity = ObjectMapper.Map<TCreateInput, TEntity>(createInput);
+
+            //Set ID for GUIDs
+            var entityWithGuidId = entity as IEntity<Guid>;
+            if (entityWithGuidId != null && entityWithGuidId.Id == Guid.Empty)
+            {
+                entityWithGuidId.Id = GuidGenerator.Create();
+            }
+
+            return entity;
         }
 
         /// <summary>

test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/App/AppModule.cs

@@ -26,6 +26,8 @@ namespace Volo.Abp.AspNetCore.App
             {
                 options.CreateControllersForAppServices(typeof(TestAppModule).Assembly);
             });
+
+            services.AddAssemblyOf<AppModule>();
         }
 
         public override void OnApplicationInitialization(ApplicationInitializationContext context)

test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/PersonAppService_Tests.cs

@@ -1,18 +1,127 @@
-using Shouldly;
+using System;
+using Shouldly;
 using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.TestApp.Application;
+using Volo.Abp.TestApp.Domain;
 using Xunit;
+using Volo.Abp.Domain.Repositories;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Text;
+using Volo.Abp.ObjectMapping;
+using Volo.Abp.Json;
 
 namespace Volo.Abp.AspNetCore.Mvc
 {
+    //TODO: Refactor to make tests easier.
+
     public class PersonAppService_Tests : AspNetCoreMvcTestBase
     {
+        private readonly IQueryableRepository<Person> _personRepository;
+        private readonly IJsonSerializer _jsonSerializer;
+        private readonly IObjectMapper _objectMapper;
+
+        public PersonAppService_Tests()
+        {
+            _personRepository = ServiceProvider.GetRequiredService<IQueryableRepository<Person>>();
+            _jsonSerializer = ServiceProvider.GetRequiredService<IJsonSerializer>();
+            _objectMapper = ServiceProvider.GetRequiredService<IObjectMapper>();
+        }
+
         [Fact]
         public async Task GetAll_Test()
         {
+            //Ideally should be [GET] /api/app/person
             var result = await GetResponseAsObjectAsync<ListResultDto<PersonDto>>("/api/services/app/person/GetAll");
             result.Items.Count.ShouldBeGreaterThan(0);
         }
+
+        [Fact]
+        public async Task Get_Test()
+        {
+            var firstPerson = _personRepository.GetList().First();
+
+            //Ideally should be [GET] /api/app/person/{id}
+            var result = await GetResponseAsObjectAsync<PersonDto>("/api/services/app/person/Get?id=" + firstPerson.Id);
+            result.Name.ShouldBe(firstPerson.Name);
+        }
+
+        [Fact]
+        public async Task Delete_Test()
+        {
+            var firstPerson = _personRepository.GetList().First();
+
+            //Ideally should be [DELETE] /api/app/person/{id}
+            await Client.DeleteAsync("/api/services/app/person/Delete?id=" + firstPerson.Id);
+
+            (await _personRepository.FindAsync(firstPerson.Id)).ShouldBeNull();
+        }
+
+        [Fact]
+        public async Task Create_Test()
+        {
+            //Act
+
+            var postData = _jsonSerializer.Serialize(new PersonDto {Name = "John", Age = 33});
+
+            //Ideally should be [POST] /api/app/person
+            var response = await Client.PostAsync(
+                "/api/services/app/person/Create",
+                new StringContent(postData, Encoding.UTF8, "application/json")
+            );
+
+            response.IsSuccessStatusCode.ShouldBeTrue();
+            response.StatusCode.ShouldBe(HttpStatusCode.OK);
+            var resultAsString = await response.Content.ReadAsStringAsync();
+            PersonDto resultDto = _jsonSerializer.Deserialize<PersonDto>(resultAsString);
+
+            //Assert
+
+            resultDto.Id.ShouldNotBe(default(Guid));
+            resultDto.Name.ShouldBe("John");
+            resultDto.Age.ShouldBe(33);
+
+            (await _personRepository.FindAsync(resultDto.Id)).ShouldNotBeNull();
+        }
+
+
+        [Fact]
+        public async Task Update_Test()
+        {
+            //Arrange
+
+            var firstPerson = _personRepository.GetList().First();
+            var firstPersonAge = firstPerson.Age; //Persist to a variable since we are using in-memory database which shares same entity.
+            var updateDto = _objectMapper.Map<Person, PersonDto>(firstPerson);
+            updateDto.Age = updateDto.Age + 1;
+            var putData = _jsonSerializer.Serialize(updateDto);
+
+            //Act
+
+            //Ideally should be [PUT] /api/app/person
+            var response = await Client.PutAsync(
+                "/api/services/app/person/Update",
+                new StringContent(putData, Encoding.UTF8, "application/json")
+            );
+
+            response.IsSuccessStatusCode.ShouldBeTrue();
+            response.StatusCode.ShouldBe(HttpStatusCode.OK);
+            var resultAsString = await response.Content.ReadAsStringAsync();
+            PersonDto resultDto = _jsonSerializer.Deserialize<PersonDto>(resultAsString);
+
+            //Assert
+
+            resultDto.Id.ShouldBe(firstPerson.Id);
+            resultDto.Name.ShouldBe(firstPerson.Name);
+            resultDto.Age.ShouldBe(firstPersonAge + 1);
+
+            var personInDb = (await _personRepository.FindAsync(resultDto.Id));
+            personInDb.ShouldNotBeNull();
+            personInDb.Name.ShouldBe(firstPerson.Name);
+            personInDb.Age.ShouldBe(firstPersonAge + 1);
+        }
     }
 }

test/Volo.Abp.TestApp/Volo/Abp/TestApp/Domain/Person.cs

@@ -9,6 +9,11 @@ namespace Volo.Abp.TestApp.Domain
 
         public int Age { get; set; }
 
+        private Person()
+        {
+            
+        }
+
         public Person(Guid id, string name, int age)
         {
             Id = id;

test/Volo.Abp.TestApp/Volo/Abp/TestApp/TestAppModule.cs

@@ -11,14 +11,7 @@ namespace Volo.Abp.TestApp
     {
         public override void ConfigureServices(IServiceCollection services)
         {
-            services.Configure<AbpAutoMapperOptions>(options =>
+            ConfigureAutoMapper(services);
-            {
-                options.Configurators.Add((IAbpAutoMapperConfigurationContext ctx) =>
-                {
-                    ctx.MapperConfiguration.CreateMap<Person, PersonDto>();
-                });
-            });
-
             services.AddAssemblyOf<TestAppModule>();
         }
 
@@ -27,6 +20,17 @@ namespace Volo.Abp.TestApp
             SeedTestData(context);
         }
 
+        private static void ConfigureAutoMapper(IServiceCollection services)
+        {
+            services.Configure<AbpAutoMapperOptions>(options =>
+            {
+                options.Configurators.Add((IAbpAutoMapperConfigurationContext ctx) =>
+                {
+                    ctx.MapperConfiguration.CreateMap<Person, PersonDto>().ReverseMap();
+                });
+            });
+        }
+
         private static void SeedTestData(ApplicationInitializationContext context)
         {
             using (IServiceScope scope = context.ServiceProvider.CreateScope())