agentic-studio/kipina-codebench/prompts/code-small.md

Generate a FastAPI project with SQLAlchemy and SQLite. Follow the REFERENCE IMPLEMENTATION exactly.

Generate these 4 files with === markers:

=== models.py === === schemas.py === === main.py === === test_main.py ===

Key patterns (copy from reference):

• class Base(DeclarativeBase): pass
• Mapped[str] = mapped_column(String(255))
• Mapped[str | None] = mapped_column(Text, default=None)
• model_config = ConfigDict(from_attributes=True)
• model_dump() not dict()
• POST 201, GET list, GET by id 404, PUT, DELETE 204

FOREIGN KEYS (when spec has relationships):

• Child entity gets parent_id field: Mapped[int] = mapped_column(ForeignKey("parents.id"))
• Import: from sqlalchemy import ForeignKey (NOT from sqlalchemy.orm!)
• Create schema includes parent_id: int
• Test creates parent FIRST, then child with parent's id

Example FK pattern in models.py:

class Author(Base):
    __tablename__ = "authors"
    id: Mapped[int] = mapped_column(primary_key=True, index=True)
    name: Mapped[str] = mapped_column(String(255))

class Post(Base):
    __tablename__ = "posts"
    id: Mapped[int] = mapped_column(primary_key=True, index=True)
    title: Mapped[str] = mapped_column(String(255))
    author_id: Mapped[int] = mapped_column(ForeignKey("authors.id"))

Example FK test patterns:

def test_create_post():
    author = client.post("/authors/", json={"name": "Jane Austen"}).json()
    response = client.post("/posts/", json={"title": "First Post", "author_id": author["id"]})
    assert response.status_code == 201

def test_update_post():
    author = client.post("/authors/", json={"name": "Mark Twain"}).json()
    created = client.post("/posts/", json={"title": "Old Title", "author_id": author["id"]}).json()
    response = client.put(f"/posts/{created['id']}", json={"title": "New Title", "author_id": author["id"]})
    assert response.status_code == 201

CRITICAL:

• Use ONLY fields from the JSON spec — no created_at or extra fields
• Generate EXACTLY 6 tests per entity: create, list, get_by_id, not_found, update, delete
• No search, filter, or other extra tests
• test_list: assert len(response.json()) >= 1, NEVER assert == 1 (database is shared between tests)
• test_create for child entities: create parent FIRST, use parent's id
• No markdown fences in output