import pytest
from rest_framework import status
from rest_framework.utils import json


@pytest.mark.django_db
class UserLoginE2ETests:
    def test_missing_username_and_password_fail_validation(self, client):
        # Arrange
        # Act
        response = client.post(
            "/token/", data=json.dumps({}), content_type="application/json"
        )
        # Assert
        assert response.status_code == status.HTTP_400_BAD_REQUEST

    def test_valid_credentials_return_token(self, user_factory, client):
        # Arrange
        user_factory(username="username", password="valid_password")

        # Act
        response = client.post(
            "/token/",
            data=json.dumps({"username": "username", "password": "valid_password"}),
            content_type="application/json",
        )
        data = response.json()
        # Assert
        assert response.status_code == status.HTTP_200_OK
        assert "token" in data