IUserGroupsService + tests

Govor.API.Tests/UnitTests/Services/UserGroupsServiceTests.cs

@@ -0,0 +1,70 @@
+using AutoFixture;
+using Govor.Application.Interfaces;
+using Govor.Application.Services;
+using Govor.Core.Models;
+using Govor.Core.Repositories.Groups;
+using Govor.Data.Repositories.Exceptions;
+using Moq;
+
+namespace Govor.API.Tests.UnitTests.Services;
+
+[TestFixture]
+public class UserGroupsServiceTests
+{
+    private Fixture _fixture;
+    private Mock<IGroupsRepository> _repositoryMock;
+    private IUserGroupsService _service;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _fixture = new Fixture();
+
+        _fixture.Behaviors
+            .OfType<ThrowingRecursionBehavior>()
+            .ToList()
+            .ForEach(b => _fixture.Behaviors.Remove(b));
+
+        _fixture.Behaviors.Add(new OmitOnRecursionBehavior());
+        
+        _repositoryMock = new Mock<IGroupsRepository>();
+        
+        _service = new UserGroupsService(_repositoryMock.Object);
+    }
+
+    [Test]
+    public async Task GetUserGroups_ShouldReturnAllUserGroups()
+    {
+        // Arrange 
+        var chats = _fixture.CreateMany<ChatGroup>();
+        var userId = chats.First().Members.First().Id;
+
+        _repositoryMock.Setup(r => r.GetByUserIdAsync(userId))
+            .ReturnsAsync([chats.First()]);
+        
+        // Act 
+        var result = await _service.GetUserGroupsAsync(userId);
+        
+        // Assert 
+        Assert.That(result, Is.Not.Null);
+        Assert.That(result.Count(), Is.EqualTo(1));
+        Assert.That(result, Is.EquivalentTo([chats.First()]));
+    }
+    
+    [Test]
+    public async Task GetUserGroups_ButGroupDoesNotExist_ShouldReturnEmptyList()
+    {
+        // Arrange 
+        var userId = _fixture.Create<Guid>();
+        
+        _repositoryMock.Setup(r => r.GetByUserIdAsync(userId))
+            .ThrowsAsync(new NotFoundByKeyException<Guid>(userId));
+        
+        // Act 
+        var result = await _service.GetUserGroupsAsync(userId);
+        
+        // Assert 
+        Assert.That(result, Is.Not.Null);
+        Assert.That(result.Count(), Is.EqualTo(0));
+    }
+}