def test_follow(self):
u1 = User(username='******')
u2 = User(username='******')
db.session.add_all([u1, u2])
db.session.commit()
self.assertEqual(u1.followed.all(), [])
self.assertEqual(u2.followed.all(), [])
u1.follow(u2)
db.session.commit()
self.assertTrue(u1.is_following(u2))
self.assertEqual(u1.followed.count(), 1)
self.assertEqual(u1.followed.first().username, 'john')
self.assertEqual(u2.followers.count(), 1)
self.assertEqual(u2.followers.first(), u1)
u1.unfollow(u2)
db.session.commit()
self.assertFalse(u1.is_following(u2))
self.assertEqual(u1.followed.count(), 0)
self.assertEqual(u2.followers.count(), 0)
def test_follow_posts(self):
u1 = User(username='******')
u2 = User(username='******')
u3 = User(username='******')
u4 = User(username='******')
db.session.add_all([u1, u2, u3, u4])
now = datetime.utcnow()
p1 = Post(body='from john',
author=u1,
timestamp=now + timedelta(seconds=1))
p2 = Post(body='from susan',
author=u2,
timestamp=now + timedelta(seconds=5))
p3 = Post(body='from mary',
author=u3,
timestamp=now - timedelta(seconds=2))
p4 = Post(body='from david',
author=u4,
timestamp=now + timedelta(seconds=3))
db.session.add_all([p1, p2, p3, p4])
db.session.commit()
u1.follow(u2)
u1.follow(u4)
u2.follow(u3)
u3.follow(u4)
db.session.commit()
f1 = u1.followed_posts().all()
f2 = u2.followed_posts().all()
f3 = u3.followed_posts().all()
f4 = u4.followed_posts().all()
self.assertEqual(f1, [p2, p4, p1])
self.assertEqual(f2, [p2, p3])
self.assertEqual(f3, [p4, p3])
self.assertEqual(f4, [p4])