"""Unit test validasi serializer — berjalan di SQLite (settings dev),

sehingga `python manage.py test` tidak butuh PostgreSQL (termasuk di CI).

"""

from django.contrib.auth.models import User

from django.test import TestCase

from .serializers import NoteSerializer, RegisterSerializer

class RegisterSerializerTest(TestCase):

def test_data_valid_lolos_validasi(self):

serializer = RegisterSerializer(

data={"username": "budi", "password": "rahasia123"}

)

self.assertTrue(serializer.is_valid())

def test_username_terlalu_pendek_ditolak(self):

serializer = RegisterSerializer(data={"username": "ab", "password": "rahasia123"})

self.assertFalse(serializer.is_valid())

self.assertEqual(

str(serializer.errors["username"][0]), "username harus 3-50 karakter"

)

def test_username_lebih_dari_50_karakter_ditolak(self):

serializer = RegisterSerializer(

data={"username": "a" * 51, "password": "rahasia123"}

)

self.assertFalse(serializer.is_valid())

self.assertEqual(

str(serializer.errors["username"][0]), "username harus 3-50 karakter"

)

def test_username_kosong_ditolak(self):

serializer = RegisterSerializer(data={"password": "rahasia123"})

self.assertFalse(serializer.is_valid())

self.assertEqual(str(serializer.errors["username"][0]), "username wajib diisi")

def test_password_kurang_dari_6_karakter_ditolak(self):

serializer = RegisterSerializer(data={"username": "budi", "password": "12345"})

self.assertFalse(serializer.is_valid())

self.assertEqual(

str(serializer.errors["password"][0]), "password minimal 6 karakter"

)

def test_username_duplikat_ditolak(self):

User.objects.create_user(username="budi", password="rahasia123")

serializer = RegisterSerializer(

data={"username": "budi", "password": "rahasia123"}

)

self.assertFalse(serializer.is_valid())

self.assertEqual(

str(serializer.errors["username"][0]), "username sudah digunakan"

)

def test_password_di_hash_saat_disimpan(self):

serializer = RegisterSerializer(

data={"username": "budi", "password": "rahasia123"}

)

self.assertTrue(serializer.is_valid())

user = serializer.save()

self.assertNotEqual(user.password, "rahasia123")

self.assertTrue(user.check_password("rahasia123"))

class NoteSerializerTest(TestCase):

def test_data_valid_lolos_validasi(self):

serializer = NoteSerializer(

data={"title": "Belajar deployment", "body": "Materi EC2"}

)

self.assertTrue(serializer.is_valid())

def test_title_kosong_ditolak(self):

serializer = NoteSerializer(data={"title": "", "body": "isi"})

self.assertFalse(serializer.is_valid())

self.assertEqual(str(serializer.errors["title"][0]), "title wajib diisi")

def test_tanpa_title_ditolak(self):

serializer = NoteSerializer(data={"body": "isi"})

self.assertFalse(serializer.is_valid())

self.assertEqual(str(serializer.errors["title"][0]), "title wajib diisi")

def test_title_lebih_dari_100_karakter_ditolak(self):

serializer = NoteSerializer(data={"title": "a" * 101})

self.assertFalse(serializer.is_valid())

self.assertEqual(

str(serializer.errors["title"][0]), "title maksimal 100 karakter"

)

def test_body_boleh_kosong(self):

serializer = NoteSerializer(data={"title": "Tanpa isi"})

self.assertTrue(serializer.is_valid())