more tests for user rep

Govor.API.Tests/IntegrationTests/EF/Repositories/UsersRepositoryTests.cs

@@ -125,4 +125,114 @@ public class UsersRepositoryTests
         // Act & Assert 
         Assert.ThrowsAsync<NotFoundByKeyException<IEnumerable<Guid>>>(async () => await userRepository.FindByRangeId(ids));
     }
+
+    [Test]
+    public async Task Given_ValidUsername_When_FindByUsername_Then_Returns_User()
+    {
+        // Arrange 
+        var user = _fixture.Create<User>();
+        
+        await using var context = new GovorDbContext(_options);
+        var userRepository = new UsersRepository(context, _userValidator);
+        
+        context.Users.Add(user);
+        await context.SaveChangesAsync();
+        
+        // Act 
+        var result = await userRepository.FindByUsername(user.Username);
+        // Assert
+        Assert.That(result, Is.Not.Null);
+        Assert.That(result.Username, Is.EqualTo(user.Username));
+        Assert.That(result.Id, Is.EqualTo(user.Id));
+    }
+    
+    [Test]
+    public async Task Given_InvalidUsername_When_FindByUsername_Should_Throw_NotFoundByKeyException()
+    {
+        // Arrange 
+        string username = _fixture.Create<string>();
+        
+        await using var context = new GovorDbContext(_options);
+        var userRepository = new UsersRepository(context, _userValidator);
+        // Act & Assert 
+        
+        Assert.ThrowsAsync<NotFoundByKeyException<string>>(async () => await userRepository.FindByUsername(username));
+    }
+    
+    [Test]
+    public async Task Given_ValidUsernames_When_FindByRangeUsernames_Then_Returns_Users()
+    {
+        // Arrange 
+        var random = new Random();
+        var users = _fixture.CreateMany<User>(random.Next(3, 10)).ToList();
+        
+        await using var context = new GovorDbContext(_options);
+        var userRepository = new UsersRepository(context, _userValidator);
+        
+        context.Users.AddRange(users);
+        await context.SaveChangesAsync();
+        
+        // Act 
+        var result = await userRepository.FindByRangeUsernames(users.Select(u => u.Username));
+        
+        // Assert
+        Assert.That(result, Is.Not.Null);
+        Assert.That(result.Select(u => u.Username), Is.EquivalentTo(users.Select(u => u.Username)));
+        Assert.That(result.Select(u => u.Id), Is.EquivalentTo(users.Select(u => u.Id)));
+    }
+    
+    [Test]
+    public async Task Given_InvalidUsernames_When_FindByRangeUsernames_Should_Throw_NotFoundByKeyException()
+    {
+        // Arrange 
+        var random = new Random();
+        var usernames = _fixture.CreateMany<string>(random.Next(3, 10)).ToList();
+        
+        await using var context = new GovorDbContext(_options);
+        var userRepository = new UsersRepository(context, _userValidator);
+        
+        // Act & Assert 
+        Assert.ThrowsAsync<NotFoundByKeyException<IEnumerable<string>>>(async () => await userRepository.FindByRangeUsernames(usernames));
+    }
+
+    [Test]
+    public async Task Given_ValidDateOnly_When_FindByCreatedDate_Then_Returns_Users()
+    {
+        // Arrange 
+        var random = new Random();
+        var users = _fixture.CreateMany<User>(random.Next(3, 10)).ToList();
+        
+        var selectedDate = users[random.Next(users.Count)].CreatedOn;
+        
+        await using var context = new GovorDbContext(_options);
+        var userRepository = new UsersRepository(context, _userValidator);
+
+        context.Users.AddRange(users);
+        await context.SaveChangesAsync();
+
+        // Act 
+        var result = await userRepository.FindUsersByCreatedDate(selectedDate);
+
+        // Assert
+        var expectedUsers = users
+            .Where(u => u.CreatedOn == selectedDate)
+            .ToList();
+
+        Assert.That(result, Is.Not.Null);
+        Assert.That(result.Count, Is.EqualTo(expectedUsers.Count));
+        Assert.That(result.Select(u => u.Id), Is.EquivalentTo(expectedUsers.Select(u => u.Id)));
+    }
+
+    [Test]
+    public async Task Given_InvalidDateOnly_When_FindByCreatedDate_Should_Throw_NotFoundByKeyException()
+    {
+        // Arrange 
+        var date = _fixture.Create<DateOnly>();
+        
+        await using var context = new GovorDbContext(_options);
+        var userRepository = new UsersRepository(context, _userValidator);
+        
+        // Act & Assert 
+        Assert.ThrowsAsync<NotFoundByKeyException<DateOnly>>(async () => await userRepository.FindUsersByCreatedDate(date));
+    }
 }

Govor.Core/Infrastructure/Validators/IObjectValidator.cs

@@ -6,4 +6,4 @@ public interface IObjectValidator<T>
     bool TryValidate(T objectToValidate);
 }
 
-class InvalidObjectException<T>(Exception ex) : GovorCoreException($"The object {typeof(T).FullName} is invalid.", ex);
+public class InvalidObjectException<T>(Exception ex) : GovorCoreException($"The object {typeof(T).FullName} is invalid.", ex);

Govor.Core/Infrastructure/Validators/UserValidator.cs

@@ -5,6 +5,8 @@ namespace Govor.Core.Infrastructure.Validators;
 
 public class UserValidator : IObjectValidator<User>
 {
+    public const int MIN_LENGHT_OF_NAME = 4;
+    public const int MAX_LENGHT_OF_NAME = 100;
     public void Validate(User user)
     {
         try
@@ -13,9 +15,13 @@ public class UserValidator : IObjectValidator<User>
                 throw new ArgumentNullException(nameof(user));
             if(user.Id == Guid.Empty)
                 throw new ArgumentException("User ID cannot be empty", nameof(user.Id));
+            if(user.Username is null 
+               || user.Username.Length < MIN_LENGHT_OF_NAME 
+               || user.Username.Length > MAX_LENGHT_OF_NAME)
+                throw new ArgumentException($"Username cannot be empty or less then {MIN_LENGHT_OF_NAME} chars or more then {MAX_LENGHT_OF_NAME}", nameof(user.Username));
             if(user.HashPassword is null || user.HashPassword == string.Empty)
                 throw new ArgumentException("Password cannot be empty", nameof(user.HashPassword));
-            if(user.CreatedOn == DateTime.MinValue)
+            if(user.CreatedOn == DateOnly.MinValue)
                 throw new ArgumentException("Time of creation account cannot be empty", nameof(user.CreatedOn));
         }
         catch(Exception ex) 

Govor.Core/Models/User.cs

@@ -1,3 +1,5 @@
+using System.ComponentModel.DataAnnotations;
+
 namespace Govor.Core.Models;
 
 public class User
@@ -7,6 +9,6 @@ public class User
     public string Description {get; set;} 
     public string HashPassword {get; set;}
     public Guid IconId {get; set;} 
-    public DateTime CreatedOn {get; set;}
+    public DateOnly CreatedOn {get; set;}
     public DateTime WasOnline {get; set;}
 }

Govor.Core/Repositories/IUsersReader.cs

@@ -7,7 +7,7 @@ public interface IUsersReader
     public Task<IEnumerable<User>> GetAll();
     public Task<User> FindById(Guid id);
     public Task<List<User>> FindByRangeId(IEnumerable<Guid> ids);
-    public Task<List<User>> FindUsersByName(string username);
+    public Task<User> FindByUsername(string username);
-    public Task<List<User>> FindByRangeUsername(IEnumerable<string> usernames);
+    public Task<List<User>> FindByRangeUsernames(IEnumerable<string> usernames);
     public Task<List<User>> FindUsersByCreatedDate(DateOnly createdDate);
 }

Govor.Data/Repositories/UsersRepository.cs

@@ -22,11 +22,14 @@ public class UsersRepository : IUsersRepository
         return await _context.Users
             .AsNoTracking()
             .Where(x => true)
-            .ToListAsync();
+            .ToListOrThrowIfEmpty(new NotFoundException("Users in Database not exists"));
     }
 
     public async Task<User> FindById(Guid id)
     {
+        if(id == Guid.Empty)
+            throw new ArgumentException("Id must not be empty", nameof(id));
+        
         return await _context.Users
             .AsNoTracking()
             .FirstOrDefaultAsync(x => x.Id == id)
@@ -35,45 +38,101 @@ public class UsersRepository : IUsersRepository
 
     public async Task<List<User>> FindByRangeId(IEnumerable<Guid> ids)
     {
+        if (ids is null || !ids.Any())
+            throw new ArgumentException("Ids must not be empty", nameof(ids));
+        
         return await _context.Users
             .AsNoTracking()
             .Where(x => ids.Contains(x.Id))
             .ToListOrThrowIfEmpty(new NotFoundByKeyException<IEnumerable<Guid>>(ids,"Users with given ids not found"));
     }
     
-    public async Task<List<User>> FindUsersByName(string username)
+    public async Task<User> FindByUsername(string username)
     {
+        if(username is null || username == string.Empty)
+            throw new ArgumentNullException(username, "Username cannot be empty");
+        
         return await _context.Users
             .AsNoTracking()
-            .Where(x => x.Username == username)
+            .FirstOrDefaultAsync(x => x.Username == username) 
-            .ToListOrThrowIfEmpty(new NotFoundByKeyException<string>(username, "Users with given username not found"));
+               ?? throw new NotFoundByKeyException<string>(username, "User with given username does not exist");
     }
     
-    public async Task<List<User>> FindByRangeUsername(IEnumerable<string> usernames)
+    public async Task<List<User>> FindByRangeUsernames(IEnumerable<string> usernames)
     {
+        if (usernames is null || !usernames.Any())
+            throw new ArgumentException("Usernames must not be empty", nameof(usernames));
+
         return await _context.Users
             .AsNoTracking()
             .Where(x => usernames.Contains(x.Username))
             .ToListOrThrowIfEmpty(new NotFoundByKeyException<IEnumerable<string>>(usernames, "Users with given usernames not found"));
     }
 
-    public Task<List<User>> FindUsersByCreatedDate(DateOnly createdDate)
+    public async Task<List<User>> FindUsersByCreatedDate(DateOnly createdDate)
     {
-        throw new NotImplementedException();
+        if(createdDate == DateOnly.MinValue)
+            throw new ArgumentException("Created date cannot be earlier than MinValue", nameof(createdDate));
+
+        return await _context.Users
+            .AsNoTracking()
+            .Where(u => createdDate == u.CreatedOn)
+            .ToListOrThrowIfEmpty(new NotFoundByKeyException<DateOnly>(createdDate, "Users with given created date do not exist"));
     }
     
-    public Task Add(User user)
+    public async Task Add(User user)
     {
-        throw new NotImplementedException();
+        try
+        {
+            _validator.Validate(user);
+
+            _context.Users.Add(user);
+
+            await _context.SaveChangesAsync();
+        }
+        catch (InvalidObjectException<User> ex)
+        {
+            throw new AdditionUserException("User with given data invalid", ex);
+        }
+        catch (Exception ex)
+        {
+            throw new AdditionUserException("Cannot add user", ex);
+        }
     }
 
-    public Task Update(User user)
+    public async Task Update(User user)
     {
-        throw new NotImplementedException();
+        try
+        {
+            _validator.Validate(user);
+
+            var rowsAffected = await _context.Users
+                .Where(u => u.Id == user.Id)
+                .ExecuteUpdateAsync(u => u
+                    .SetProperty(a => a.Username, user.Username)
+                    .SetProperty(u => u.IconId, user.IconId)
+                    .SetProperty(u => u.Description, user.Description)
+                    .SetProperty(u => u.CreatedOn, user.CreatedOn)
+                    .SetProperty(u => u.HashPassword, user.HashPassword)
+                    .SetProperty(u => u.WasOnline, user.WasOnline)
+                );
+
+            if (rowsAffected == 0)
+                throw new NotFoundByKeyException<Guid>(user.Id);
+        }
+        catch (NotFoundByKeyException<Guid> ex)
+        {
+            throw new UserUpdateException($"Not found user by given id {user.Id}", ex);
+        }
+        catch (Exception ex)
+        {
+            throw new UserUpdateException($"Error when updating the user {user.Id}", ex);
+        }
     }
 
     public Task Remove(User user)
     {
+        _validator.Validate(user);
         throw new NotImplementedException();
     }
 
@@ -84,6 +143,7 @@ public class UsersRepository : IUsersRepository
 
     public Task<bool> Exists(User user)
     {
+        _validator.Validate(user);
         throw new NotImplementedException();
     }
 
@@ -97,3 +157,10 @@ public class UsersRepository : IUsersRepository
         throw new NotImplementedException();
     }
 }
+
+public class AdditionUserException(string s, Exception ex) 
+    : Exception(s, ex);
+
+public class UserUpdateException(string s, Exception ex)
+    : Exception(s, ex);
+