Sergey Vanyushkin
7ff3fa0992
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Implement full comments system: domain entities (Comment, CommentLike), value objects (CommentContent), use cases (CRUD, like toggle), SQLAlchemy repository, API v1 endpoints, web UI with comment form and nested replies, i18n translations (EN/RU/FR/DE), and E2E tests. Fix nested reply (reply-to-reply) not displaying — the flat reply_comments dict was only queried for top-level comment IDs, so deeply nested replies were saved to DB (incrementing comment count) but never rendered. Switch to a recursive Jinja2 macro that renders any nesting depth.
120 lines
4.0 KiB
Python
120 lines
4.0 KiB
Python
"""Tests for ToggleCommentLikeUseCase.
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This module tests the comment like/unlike toggle use case covering
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first-time like, unlike, and comment-not-found scenarios.
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"""
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from unittest.mock import AsyncMock
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from uuid import uuid4
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import pytest
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from app.application.use_cases.toggle_comment_like import ToggleCommentLikeUseCase
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from app.domain.entities.comment import Comment
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from app.domain.entities.comment_like import CommentLike
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from app.domain.exceptions import NotFoundException
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class TestToggleCommentLikeUseCase:
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"""Tests for ToggleCommentLikeUseCase.
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Covers TC-UNIT-838 through TC-UNIT-840.
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"""
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@pytest.mark.asyncio
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async def test_like_comment_first_time(
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self,
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mock_transaction_manager: AsyncMock,
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) -> None:
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"""Test liking a comment for the first time.
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TC-UNIT-838: Positive — like first time.
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"""
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post_id = uuid4()
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comment = Comment.create(
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post_id=post_id,
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author_id="user-123",
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content_str="Nice post!",
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)
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mock_comment_repository = AsyncMock()
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mock_comment_repository.get_by_id = AsyncMock(return_value=comment)
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mock_comment_repository.get_like = AsyncMock(return_value=None)
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mock_comment_repository.add_like = AsyncMock()
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mock_comment_repository.remove_like = AsyncMock()
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mock_comment_repository.update = AsyncMock()
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use_case = ToggleCommentLikeUseCase(
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comment_repo=mock_comment_repository,
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tx_manager=mock_transaction_manager,
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)
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result = await use_case.execute(comment.id, "user-456")
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assert result.like_count == 1
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mock_comment_repository.add_like.assert_called_once()
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mock_comment_repository.remove_like.assert_not_called()
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mock_comment_repository.update.assert_called_once()
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mock_transaction_manager.commit.assert_called_once()
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@pytest.mark.asyncio
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async def test_unlike_comment_already_liked(
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self,
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mock_transaction_manager: AsyncMock,
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) -> None:
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"""Test unliking a comment that is already liked.
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TC-UNIT-839: Positive — unlike (already liked).
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"""
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post_id = uuid4()
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comment = Comment.create(
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post_id=post_id,
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author_id="user-123",
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content_str="Nice post!",
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)
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existing_like = CommentLike(comment_id=comment.id, liked_by="user-456")
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mock_comment_repository = AsyncMock()
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mock_comment_repository.get_by_id = AsyncMock(return_value=comment)
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mock_comment_repository.get_like = AsyncMock(return_value=existing_like)
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mock_comment_repository.add_like = AsyncMock()
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mock_comment_repository.remove_like = AsyncMock()
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mock_comment_repository.update = AsyncMock()
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use_case = ToggleCommentLikeUseCase(
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comment_repo=mock_comment_repository,
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tx_manager=mock_transaction_manager,
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)
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result = await use_case.execute(comment.id, "user-456")
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assert result.like_count == 0
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mock_comment_repository.remove_like.assert_called_once()
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mock_comment_repository.add_like.assert_not_called()
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mock_comment_repository.update.assert_called_once()
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mock_transaction_manager.commit.assert_called_once()
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@pytest.mark.asyncio
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async def test_like_comment_not_found(
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self,
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mock_transaction_manager: AsyncMock,
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) -> None:
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"""Test liking a non-existent comment.
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TC-UNIT-840: Negative — comment not found.
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"""
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mock_comment_repository = AsyncMock()
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mock_comment_repository.get_by_id = AsyncMock(return_value=None)
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use_case = ToggleCommentLikeUseCase(
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comment_repo=mock_comment_repository,
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tx_manager=mock_transaction_manager,
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)
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with pytest.raises(NotFoundException):
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await use_case.execute(uuid4(), "user-456")
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mock_comment_repository.add_like.assert_not_called()
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mock_comment_repository.remove_like.assert_not_called()
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mock_transaction_manager.commit.assert_not_called()
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