user

#!/usr/bin/python3
"""
    Unittests for module models/user,py
"""
from models.user import User
from models.base_model import BaseModel
import unittest
import datetime


class TestUserInstantiation(unittest.TestCase):
    """Test instantiation of User class"""
    def test_subclass_of(self):
        """Test if instance is subclass of BaseModel"""
        u = User()
        self.assertIsInstance(u, BaseModel)
        self.assertIsInstance(u, User)

    def test_no_arg(self):
        """Test without any argument"""
        u = User()
        self.assertIn("created_at", u.__dict__)
        self.assertIn("updated_at", u.__dict__)
        self.assertIn("id", u.__dict__)
        self.assertIsInstance(u.id, str)
        self.assertIsInstance(u.created_at, datetime.datetime)
        self.assertIsInstance(u.updated_at, datetime.datetime)