public async Task MustGetNewRefreshTokenAsync()
{
// Given
var existingUser = UserBuilder.New()
.Build();
_userLoginDto.Grant_Type = UserLoginGrantType.RefreshToken;
// When
_userMocks.MockUserGetByRefreshToken(existingUser, _userLoginDto.Refresh_Token);
existingUser = await _userAuthentication.AuthenticateAsync(_userLoginDto);
// Then
Assert.NotEqual(_userLoginDto.Refresh_Token, existingUser.RefreshToken);
}