Форматирование кода, добавление лого, исправление тестов, улучшение эндпоинтов и документации

tests/mock_routers/relationships.py

@@ -0,0 +1,40 @@
+from fastapi import APIRouter, HTTPException
+from tests.mocks.mock_storage import mock_storage
+
+router = APIRouter(tags=["relations"])
+
+
+@router.post("/relationships/author-book")
+def add_author_to_book(author_id: int, book_id: int):
+    if not mock_storage.create_author_book_link(author_id, book_id):
+        if not mock_storage.get_author(author_id):
+            raise HTTPException(status_code=404, detail="Author not found")
+        if not mock_storage.get_book(book_id):
+            raise HTTPException(status_code=404, detail="Book not found")
+        raise HTTPException(status_code=400, detail="Relationship already exists")
+
+    return {"author_id": author_id, "book_id": book_id}
+
+
+@router.get("/authors/{author_id}/books")
+def get_books_for_author(author_id: int):
+    author = mock_storage.get_author(author_id)
+    if not author:
+        raise HTTPException(status_code=404, detail="Author not found")
+
+    return mock_storage.get_books_by_author(author_id)
+
+
+@router.get("/books/{book_id}/authors")
+def get_authors_for_book(book_id: int):
+    book = mock_storage.get_book(book_id)
+    if not book:
+        raise HTTPException(status_code=404, detail="Book not found")
+
+    return mock_storage.get_authors_by_book(book_id)
+
+
+@router.post("/relationships/genre-book")
+def add_genre_to_book(genre_id: int, book_id: int):
+    # For tests that need genre functionality
+    return {"genre_id": genre_id, "book_id": book_id}