fix(M3): immuabilité et validation des modèles — correction des écarts FIXME_M3

Immuabilité :
- Collections des modèles frozen : list → tuple (Lesson, TheoreticalLesson,
  SchoolEvent, AgendaDiff, Homework, XmppMessage, ExternalInfo)
- Gel de HomeworkBlock et ExternalInfo (sous-modèles imbriqués dans contrats)
- Valeurs par défaut immuables : Field(default=(), ...)

Validation de domaine :
- TheoreticalLesson.day_of_week : Field(ge=0, le=6)
- Lesson/TheoreticalLesson : start < end (validateur de modèle)
- SchoolEvent : from_date <= to_date
- AgendaChange : cohérence type/payload (ADDED/MODIFIED → lesson,
  REMOVED → theoretical_lesson)
- CalDAVSyncResult : compteurs Field(ge=0) sur added/updated/removed

Tests : 66 tests (construction/sérialisation, immuabilité, invariants)
couvrant le gel, la mutabilité légitime, et les cas invalides par invariant.

Co-authored-by: opencode/coder <coder@agents.invalid>
Co-authored-by: opencode/test-engineer <test-engineer@agents.invalid>
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"""Tests d'immuabilité des modèles Pydantic figés.
Ce module vérifie que les modèles marqués comme figés (frozen=True) ne peuvent pas
être modifiés après construction, et que leurs collections sont bien des tuples.
"""
from __future__ import annotations
from datetime import date, datetime
from typing import Any
import pytest
from pydantic import BaseModel, ValidationError
from pronote_sync.models.agenda import HomeworkBlock, Lesson, LessonStatus
from pronote_sync.models.blog import BlogArticle, ExternalInfo
from pronote_sync.models.diff import AgendaChange, AgendaChangeType
from pronote_sync.models.homework import Homework
from pronote_sync.models.message import Message, MessageType
from pronote_sync.models.pronote import PronoteData
from pronote_sync.models.sync import CalDAVSyncResult, CalDAVSyncStatus
from pronote_sync.models.xmpp import XmppMessage
@pytest.mark.parametrize(
"model_class, kwargs",
[
(
Lesson,
{
"id": "lesson-immutability",
"start": datetime(2024, 9, 6, 8, 0, 0),
"end": datetime(2024, 9, 6, 9, 30, 0),
"subject": "Mathématiques",
"teachers": ("M. Dupont", "Mme Martin"),
"rooms": ("Salle 101",),
"status": LessonStatus.NORMAL,
},
),
(
Homework,
{
"id": "hw-immutability",
"subject": "Physique",
"teachers": ("M. Martin",),
"due_on": date(2024, 9, 15),
"text": "Exercice à rendre",
},
),
(
AgendaChange,
{
"type": AgendaChangeType.ADDED,
"lesson": Lesson(
id="lesson-ref",
start=datetime(2024, 9, 6, 10, 0, 0),
end=datetime(2024, 9, 6, 11, 30, 0),
subject="Histoire",
teachers=("Mme Bernard",),
rooms=("Salle 201",),
group=None,
content=None,
),
},
),
(
XmppMessage,
{
"target_date": date(2024, 9, 6),
"synthesis": "Test immuabilité",
},
),
(
HomeworkBlock,
{
"kind": "due",
"date": date(2024, 9, 15),
"text": "Devoir à faire",
},
),
(
ExternalInfo,
{
"blog_articles": (
BlogArticle(
id="article-1",
title="Article 1",
url="https://example.com/1",
published_at=datetime(2024, 9, 1, 8, 0, 0),
updated_at=None,
category=None,
author=None,
content_html="<p>Contenu</p>",
content_text="Contenu",
),
),
"pronote_messages": (
Message(
id="msg-1",
type=MessageType.INFORMATION,
title="Message 1",
content="Message",
author="Auteur",
date=datetime(2024, 9, 1, 8, 0, 0),
read=False,
),
),
},
),
],
)
def test_frozen_model_rejects_field_assignment(
model_class: type[BaseModel], kwargs: dict[str, Any]
) -> None:
"""Vérifie qu'un modèle figé rejette toute tentative d'assignation de champ.
:param model_class: Classe du modèle figé.
:type model_class: type[BaseModel]
:param kwargs: Arguments de constructeur valides.
:type kwargs: dict[str, Any]
"""
instance: Any = model_class(**kwargs)
# Tentative d'assignation directe sur un champ
with pytest.raises(ValidationError) as exc_info:
if model_class == Lesson:
instance.subject = "Nouveau sujet"
elif model_class == Homework:
instance.subject = "Nouveau sujet"
elif model_class == AgendaChange:
instance.details = "Nouveaux détails"
elif model_class == XmppMessage:
instance.synthesis = "Nouvelle synthèse"
elif model_class == HomeworkBlock:
instance.text = "Nouveau texte"
elif model_class == ExternalInfo:
instance.other_info = ("Nouvelle info",)
error_msg = str(exc_info.value).lower()
assert "instance is frozen" in error_msg or "immutable" in error_msg
@pytest.mark.parametrize(
"model_class, kwargs, field_name, expected_type",
[
(
Lesson,
{
"id": "lesson-tuple",
"start": datetime(2024, 9, 6, 8, 0),
"end": datetime(2024, 9, 6, 9, 0),
"subject": "Test",
},
"teachers",
tuple,
),
(
Lesson,
{
"id": "lesson-tuple2",
"start": datetime(2024, 9, 6, 8, 0),
"end": datetime(2024, 9, 6, 9, 0),
"subject": "Test",
},
"rooms",
tuple,
),
(
Lesson,
{
"id": "lesson-tuple3",
"start": datetime(2024, 9, 6, 8, 0),
"end": datetime(2024, 9, 6, 9, 0),
"subject": "Test",
"homework_blocks": (),
},
"homework_blocks",
tuple,
),
(
Homework,
{
"id": "hw-tuple",
"subject": "Test",
"teachers": ("Prof 1",),
"due_on": date(2024, 9, 15),
"text": "Devoir",
},
"teachers",
tuple,
),
(
AgendaChange,
{
"type": AgendaChangeType.ADDED,
"lesson": Lesson(
id="ref",
start=datetime(2024, 9, 6, 8, 0),
end=datetime(2024, 9, 6, 9, 0),
subject="Test",
group=None,
content=None,
),
},
"details",
str,
),
(XmppMessage, {"target_date": date(2024, 9, 6)}, "homeworks", tuple),
(XmppMessage, {"target_date": date(2024, 9, 6)}, "changes", tuple),
(XmppMessage, {"target_date": date(2024, 9, 6)}, "messages", tuple),
(
ExternalInfo,
{"blog_articles": (), "pronote_messages": (), "other_info": ()},
"blog_articles",
tuple,
),
(
ExternalInfo,
{"blog_articles": (), "pronote_messages": (), "other_info": ()},
"pronote_messages",
tuple,
),
(
ExternalInfo,
{"blog_articles": (), "pronote_messages": (), "other_info": ()},
"other_info",
tuple,
),
],
)
def test_collection_fields_are_tuples(
model_class: type[BaseModel],
kwargs: dict[str, Any],
field_name: str,
expected_type: type[Any],
) -> None:
"""Vérifie que les champs de collection sont bien des tuples et non des listes.
:param model_class: Classe du modèle.
:type model_class: type[BaseModel]
:param kwargs: Arguments de constructeur valides.
:type kwargs: dict[str, Any]
:param field_name: Nom du champ de collection à vérifier.
:type field_name: str
:param expected_type: Type attendu (tuple).
:type expected_type: type
"""
instance = model_class(**kwargs)
field_value = getattr(instance, field_name)
assert isinstance(field_value, expected_type), (
f"Le champ {field_name} devrait être de type {expected_type.__name__}, "
f"got {type(field_value).__name__}"
)
@pytest.mark.parametrize(
"model_class, kwargs, field_name",
[
(
Lesson,
{
"id": "lesson-no-append",
"start": datetime(2024, 9, 6, 8, 0),
"end": datetime(2024, 9, 6, 9, 0),
"subject": "Test",
},
"teachers",
),
(
Lesson,
{
"id": "lesson-no-append2",
"start": datetime(2024, 9, 6, 8, 0),
"end": datetime(2024, 9, 6, 9, 0),
"subject": "Test",
},
"rooms",
),
(
Homework,
{
"id": "hw-no-append",
"subject": "Test",
"teachers": ("Prof 1",),
"due_on": date(2024, 9, 15),
"text": "Devoir",
},
"teachers",
),
(
ExternalInfo,
{"blog_articles": (), "pronote_messages": (), "other_info": ()},
"blog_articles",
),
(
ExternalInfo,
{"blog_articles": (), "pronote_messages": (), "other_info": ()},
"pronote_messages",
),
(
ExternalInfo,
{"blog_articles": (), "pronote_messages": (), "other_info": ()},
"other_info",
),
],
)
def test_collection_fields_reject_append(
model_class: type[BaseModel], kwargs: dict[str, Any], field_name: str
) -> None:
"""Vérifie que les champs de collection (tuples) rejettent la méthode append.
:param model_class: Classe du modèle.
:type model_class: type[BaseModel]
:param kwargs: Arguments de constructeur valides.
:type kwargs: dict[str, Any]
:param field_name: Nom du champ de collection.
:type field_name: str
"""
instance = model_class(**kwargs)
with pytest.raises(AttributeError) as exc_info:
collection = getattr(instance, field_name)
collection.append("new_item")
assert "'tuple' object has no attribute 'append'" in str(exc_info.value)
@pytest.mark.parametrize(
"model_class, kwargs, field_name, new_value",
[
(CalDAVSyncResult, {"status": CalDAVSyncStatus.SUCCESS}, "added", 5),
(CalDAVSyncResult, {"status": CalDAVSyncStatus.SUCCESS}, "updated", 3),
(CalDAVSyncResult, {"status": CalDAVSyncStatus.SUCCESS}, "removed", 2),
(
CalDAVSyncResult,
{"status": CalDAVSyncStatus.FAILED},
"errors",
["Erreur 1", "Erreur 2"],
),
],
)
def test_mutable_models_accept_field_assignment(
model_class: type[BaseModel],
kwargs: dict[str, Any],
field_name: str,
new_value: Any,
) -> None:
"""Vérifie que les modèles mutables (non figés) acceptent l'assignation de champs.
:param model_class: Classe du modèle mutable.
:type model_class: type[BaseModel]
:param kwargs: Arguments de constructeur valides.
:type kwargs: dict[str, Any]
:param field_name: Nom du champ à assigner.
:type field_name: str
:param new_value: Nouvelle valeur à assigner.
:type new_value: Any
"""
instance = model_class(**kwargs)
# Assignation du champ
setattr(instance, field_name, new_value)
# Vérification que la valeur a bien été assignée
assert getattr(instance, field_name) == new_value, (
f"Le champ {field_name} n'a pas été correctement assigné"
)
@pytest.mark.parametrize(
"model_class, kwargs",
[
(
PronoteData,
{
"target_date": date(2024, 9, 6),
"generated_at": datetime(2024, 9, 6, 8, 0, 0),
},
),
(CalDAVSyncResult, {"status": CalDAVSyncStatus.SUCCESS}),
],
)
def test_mutable_models_reject_frozen_assignment(
model_class: type[BaseModel], kwargs: dict[str, Any]
) -> None:
"""Vérifie que les modèles mutables peuvent être modifiés mais pas rendus figés.
Note: Les modèles mutables comme PronoteData et CalDAVSyncResult n'ont pas
ConfigDict(frozen=True), donc ils peuvent être modifiés.
:param model_class: Classe du modèle mutable.
:type model_class: type[BaseModel]
:param kwargs: Arguments de constructeur valides.
:type kwargs: dict[str, Any]
"""
from pronote_sync.models.pronote import PronoteData
instance: Any = model_class(**kwargs)
# Assignation normale doit fonctionner
if model_class == PronoteData:
instance.lessons.append("dummy")
else:
instance.added = 10
# Vérification que l'instance n'est pas figée
assert not hasattr(instance.model_config, "frozen") or not instance.model_config.get(
"frozen", False
)