diff --git a/test/Application.UnitTests/Services/DomainService/ProfileServiceTests.cs b/test/Application.UnitTests/Services/DomainService/ProfileServiceTests.cs
new file mode 100644
index 0000000..ee8e8dd
--- /dev/null
+++ b/test/Application.UnitTests/Services/DomainService/ProfileServiceTests.cs
@@ -0,0 +1,330 @@
+using Application.DTOs.Profile.ChangePassword;
+using Application.DTOs.Profile.EditProfile;
+using Application.DTOs.Profile.GetProfileInfo;
+using Application.Interfaces.Repositories;
+using Application.Services.DomainService;
+using Domain.Entities;
+using Microsoft.AspNetCore.Identity;
+using NSubstitute;
+
+namespace test.Application.UnitTests.Services.DomainService;
+
+public class ProfileServiceTests
+{
+    private readonly IUserManagerRepository _userManagerMock;
+    private readonly ProfileService _profileService;
+
+    public ProfileServiceTests()
+    {
+        _userManagerMock = Substitute.For<IUserManagerRepository>();
+        _profileService = new ProfileService(_userManagerMock);
+    }
+    
+    [Fact]
+    public async Task EditProfileInfo_WhenUserNotFound_ReturnsFail()
+    {
+        // Arrange
+        var request = new EditProfileInfoRequest
+        {
+            UserId = "1",
+            UserName = "MobinBarfi",
+            FirstName = "Mobin",
+            LastName = "Barfi"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns((AppUser?)null);
+
+        // Act
+        var result = await _profileService.EditProfileInfo(request);
+
+        // Assert
+        Assert.False(result.Succeed);
+        Assert.Equal("User not found!", result.Message);
+    }
+    
+    [Fact]
+    public async Task EditProfileInfo_WhenUsernameIsReserved_ReturnsFail()
+    {
+        // Arrange
+        var request = new EditProfileInfoRequest
+        {
+            UserId = "1",
+            UserName = "MobinBarfi",
+            FirstName = "Mobin",
+            LastName = "Barfi"
+        };
+
+        var user1 = new AppUser
+        {
+            Id = "1",
+            UserName = "MobinBarfiHajiAbadi"
+        };
+        
+        var user2 = new AppUser
+        {
+            Id = "2",
+            UserName = "MobinBarfi"
+        };
+        
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user1);
+        _userManagerMock.FindByNameAsync(request.UserName).Returns(user2);
+
+        // Act
+        var result = await _profileService.EditProfileInfo(request);
+
+        // Assert
+        Assert.False(result.Succeed);
+        Assert.Equal("Username is already reserved by another user!", result.Message);
+    }
+    
+    [Fact]
+    public async Task EditProfileInfo_WhenUpdateFails_ReturnsFail()
+    {
+        // Arrange
+        var request = new EditProfileInfoRequest
+        {
+            UserId = "1",
+            UserName = "MobinBarfi",
+            FirstName = "Mobin",
+            LastName = "Barfi"
+        };
+
+        var user = new AppUser
+        {
+            Id = "1",
+            UserName = "MobinBarfi"
+        };
+        
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user);
+        _userManagerMock.UpdateAsync(user).Returns(IdentityResult.Failed(new IdentityError { Description = "Update failed!" }));
+
+        // Act
+        var result = await _profileService.EditProfileInfo(request);
+
+        // Assert
+        Assert.False(result.Succeed);
+        Assert.Equal("Update failed!", result.Message);
+    }
+    
+    [Fact]
+    public async Task EditProfileInfo_WhenUsernameIsNoChanged_ReturnsOk()
+    {
+        // Arrange
+        var request = new EditProfileInfoRequest
+        {
+            UserId = "1",
+            UserName = "MobinBarfi",
+            FirstName = "Mobin",
+            LastName = "Barfi"
+        };
+
+        var user = new AppUser
+        {
+            Id = "1",
+            UserName = "MobinBarfi"
+        };
+        
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user);
+        _userManagerMock.UpdateAsync(user).Returns(IdentityResult.Success);
+
+        // Act
+        var result = await _profileService.EditProfileInfo(request);
+
+        // Assert
+        Assert.True(result.Succeed);
+        Assert.Equal("MobinBarfi", result.Value.UserName);
+        Assert.Equal("Mobin", result.Value.FirstName);
+        Assert.Equal("Barfi", result.Value.LastName);
+    }
+
+    [Fact]
+    public async Task EditProfileInfo_WhenAllDataIsChangedCorrectly_ReturnsOk()
+    {
+        // Arrange
+        var request = new EditProfileInfoRequest
+        {
+            UserId = "1",
+            UserName = "NewMobinBarfi",
+            FirstName = "NewMobin",
+            LastName = "NewBarfi"
+        };
+
+        var user = new AppUser
+        {
+            Id = "1",
+            UserName = "OldMobinBarfi",
+            FirstName = "OldMobin",
+            LastName = "OldBarfi"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user);
+        _userManagerMock.FindByNameAsync(request.UserName).Returns((AppUser?)null);  // No other user with the new username
+        _userManagerMock.UpdateAsync(user).Returns(IdentityResult.Success);
+
+        // Act
+        var result = await _profileService.EditProfileInfo(request);
+
+        // Assert
+        Assert.True(result.Succeed);
+        Assert.Equal("NewMobinBarfi", result.Value.UserName);
+        Assert.Equal("NewMobin", result.Value.FirstName);
+        Assert.Equal("NewBarfi", result.Value.LastName);
+    }
+    
+    [Fact]
+    public async Task GetProfileInfo_WhenUserNotFound_ReturnsFail()
+    {
+        // Arrange
+        var request = new GetProfileInfoRequest
+        {
+            UserId = "1"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns((AppUser?)null);
+
+        // Act
+        var result = await _profileService.GetProfileInfo(request);
+
+        // Assert
+        Assert.False(result.Succeed);
+        Assert.Equal("User not found!", result.Message);
+    }
+    
+    [Fact]
+    public async Task GetProfileInfo_WhenSuccess_ReturnsOk()
+    {
+        // Arrange
+        var request = new GetProfileInfoRequest
+        {
+            UserId = "1"
+        };
+
+        var user = new AppUser
+        {
+            Id = "1",
+            UserName = "MobinBarfi",
+            FirstName = "Mobin",
+            LastName = "Barfi"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user);
+        _userManagerMock.GetRoleAsync(user).Returns("Admin");
+
+        // Act
+        var result = await _profileService.GetProfileInfo(request);
+
+        // Assert
+        Assert.True(result.Succeed);
+        Assert.Equal("MobinBarfi", result.Value.UserName);
+        Assert.Equal("Mobin", result.Value.FirstName);
+        Assert.Equal("Barfi", result.Value.LastName);
+        Assert.Equal("Admin", result.Value.Role);
+    }
+    
+    [Fact]
+    public async Task ChangePassword_WhenUserNotFound_ReturnsFail()
+    {
+        // Arrange
+        var request = new ChangePasswordRequest
+        {
+            UserId = "1",
+            CurrentPassword = "OldPassword",
+            NewPassword = "NewPassword"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns((AppUser?)null);
+
+        // Act
+        var result = await _profileService.ChangePassword(request);
+
+        // Assert
+        Assert.False(result.Succeed);
+        Assert.Equal("User not found!", result.Message);
+    }
+    
+    [Fact]
+    public async Task ChangePassword_WhenCurrentPasswordIsIncorrect_ReturnsFail()
+    {
+        // Arrange
+        var request = new ChangePasswordRequest
+        {
+            UserId = "1",
+            CurrentPassword = "OldPassword",
+            NewPassword = "NewPassword"
+        };
+
+        var user = new AppUser
+        {
+            Id = "1",
+            UserName = "MobinBarfi"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user);
+        _userManagerMock.CheckPasswordAsync(user, request.CurrentPassword).Returns(false);
+
+        // Act
+        var result = await _profileService.ChangePassword(request);
+
+        // Assert
+        Assert.False(result.Succeed);
+        Assert.Equal("Incorrect current password!", result.Message);
+    }
+    
+    [Fact]
+    public async Task ChangePassword_WhenChangePasswordFails_ReturnsFail()
+    {
+        // Arrange
+        var request = new ChangePasswordRequest
+        {
+            UserId = "1",
+            CurrentPassword = "OldPassword",
+            NewPassword = "NewPassword"
+        };
+
+        var user = new AppUser
+        {
+            Id = "1",
+            UserName = "MobinBarfi"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user);
+        _userManagerMock.CheckPasswordAsync(user, request.CurrentPassword).Returns(true);
+        _userManagerMock.ChangePasswordAsync(user, request.CurrentPassword, request.NewPassword).Returns(IdentityResult.Failed(new IdentityError { Description = "Change password failed!" }));
+
+        // Act
+        var result = await _profileService.ChangePassword(request);
+
+        // Assert
+        Assert.False(result.Succeed);
+        Assert.Equal("Change password failed!", result.Message);
+    }
+    
+    [Fact]
+    public async Task ChangePassword_WhenSuccess_ReturnsOk()
+    {
+        // Arrange
+        var request = new ChangePasswordRequest
+        {
+            UserId = "1",
+            CurrentPassword = "OldPassword",
+            NewPassword = "NewPassword"
+        };
+
+        var user = new AppUser
+        {
+            Id = "1",
+            UserName = "MobinBarfi"
+        };
+
+        _userManagerMock.FindByIdAsync(request.UserId).Returns(user);
+        _userManagerMock.CheckPasswordAsync(user, request.CurrentPassword).Returns(true);
+        _userManagerMock.ChangePasswordAsync(user, request.CurrentPassword, request.NewPassword).Returns(IdentityResult.Success);
+
+        // Act
+        var result = await _profileService.ChangePassword(request);
+
+        // Assert
+        Assert.True(result.Succeed);
+    }
+    
+}
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