Files
blog.pyaqa.ru/tests/api/test_likes.py
Sergey Vanyushkin 3cf6c94da2 feat: add like/unlike toggle on blog posts with per-user tracking
- PostLike domain entity (post_id, liked_by) with BaseEntity integration
- Post entity: add like_count field (default 0) and to_dict serialization
- PostRepository interface: add get_like, add_like, remove_like methods
- TogglePostLikeUseCase: toggle logic (like → unlike, unlike → like)
- PostResponseDTO/PostResponseSchema: add like_count field
- PostLikeORM model with FK to posts and cascade delete
- SQLAlchemyPostRepository: implement like query/add/remove with ORM mapping
- DI provider registration for TogglePostLikeUseCase
- API endpoint POST /api/v1/posts/{id}/like (auth required)
- Unit tests: PostLike entity, Post.like_count, TogglePostLikeUseCase (7 tests)
- API tests: POST /api/v1/posts/{id}/like (4 tests)
- Test model files: FEATURE_LIKES.md, TEST_MODEL.md updated
2026-05-10 18:24:09 +03:00

95 lines
2.8 KiB
Python

"""API tests for post like/unlike toggle.
This module tests the POST /api/v1/posts/{post_id}/like endpoint covering
authenticated toggle on, toggle off, guest access, and not-found scenarios.
"""
from typing import Any
from fastapi.testclient import TestClient
from tests.api.conftest import API_PREFIX
class TestLikePost:
"""Tests for POST /api/v1/posts/{post_id}/like — toggle like on a post."""
def test_like_post_authenticated(
self,
client: TestClient,
user_headers: dict[str, str],
created_post: dict[str, Any],
) -> None:
"""Test liking a post as authenticated user returns like_count=1.
TC-API-114: Positive — authenticated like toggle on.
"""
post_id = created_post["id"]
response = client.post(
f"{API_PREFIX}/{post_id}/like",
headers=user_headers,
)
assert response.status_code == 200
data = response.json()
assert data["like_count"] == 1
assert data["id"] == post_id
def test_unlike_post_authenticated(
self,
client: TestClient,
user_headers: dict[str, str],
created_post: dict[str, Any],
) -> None:
"""Test unliking a post that was already liked returns like_count=0.
TC-API-115: Positive — authenticated like toggle off.
"""
post_id = created_post["id"]
client.post(f"{API_PREFIX}/{post_id}/like", headers=user_headers)
response = client.post(
f"{API_PREFIX}/{post_id}/like",
headers=user_headers,
)
assert response.status_code == 200
data = response.json()
assert data["like_count"] == 0
assert data["id"] == post_id
def test_like_post_as_guest(
self,
client: TestClient,
guest_headers: dict[str, str],
created_post: dict[str, Any],
) -> None:
"""Test liking a post as guest (inactive token) returns 401.
TC-API-116: Negative — guest/inactive token cannot like.
"""
post_id = created_post["id"]
response = client.post(
f"{API_PREFIX}/{post_id}/like",
headers=guest_headers,
)
assert response.status_code == 401
def test_like_post_not_found(
self,
client: TestClient,
user_headers: dict[str, str],
) -> None:
"""Test liking a non-existent post returns 404.
TC-API-117: Negative — post not found.
"""
fake_id = "00000000-0000-0000-0000-000000000000"
response = client.post(
f"{API_PREFIX}/{fake_id}/like",
headers=user_headers,
)
assert response.status_code == 404
error = response.json()
assert error["error"] == "NotFoundException"