fix(backend): supprime les vulnerabilites Sonar du Dockerfile et allege les tests d'exception

apps/backend/Dockerfile

@@ -11,13 +11,14 @@ WORKDIR /app
 RUN --mount=type=cache,target=/root/.cache/uv \
     --mount=type=bind,source=uv.lock,target=uv.lock \
     --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
-    uv sync --locked --no-install-project --no-dev
+    uv sync --locked --no-install-project --no-dev --no-build
 
+# Le projet lui-meme n'est pas installe (pas de second `uv sync`) : il tourne depuis /app, le
+# repertoire de travail, et rien ne lit ses metadonnees. L'installer imposerait de le construire
+# (backend hatchling), donc de retirer `--no-build` de l'etape ci-dessus, qui garantit que
+# l'installation des dependances n'execute aucun script de build (regle Sonar docker:S8541).
 COPY . /app
 
-RUN --mount=type=cache,target=/root/.cache/uv \
-    uv sync --locked --no-dev
-
 
 FROM python:3.14-slim AS runtime
 

apps/backend/tests/db/test_data_schema.py

@@ -112,8 +112,10 @@ async def test_duplicate_reading_is_rejected_when_key_matches(
     )
     await data_connection.execute(statement)
 
+    savepoint = data_connection.begin_nested()
+
     with pytest.raises(IntegrityError):
-        async with data_connection.begin_nested():
+        async with savepoint:
             await data_connection.execute(statement)
 
 
@@ -147,9 +149,12 @@ async def test_invalid_reading_is_rejected_when_constraints_fail(
     }
     values.update(changes)
 
+    statement = insert(Reading).values(**values)
+    savepoint = data_connection.begin_nested()
+
     with pytest.raises(IntegrityError):
-        async with data_connection.begin_nested():
+        async with savepoint:
-            await data_connection.execute(insert(Reading).values(**values))
+            await data_connection.execute(statement)
 
 
 async def test_prediction_requires_period_when_energy_is_predicted(
@@ -164,8 +169,10 @@ async def test_prediction_requires_period_when_energy_is_predicted(
         model_reference="test-model/1",
     )
 
+    savepoint = data_connection.begin_nested()
+
     with pytest.raises(IntegrityError):
-        async with data_connection.begin_nested():
+        async with savepoint:
             await data_connection.execute(statement)
 
 
@@ -212,10 +219,7 @@ async def test_alert_rejects_prediction_when_site_differs(
         )
     ).scalar_one()
 
-    with pytest.raises(IntegrityError):
+    statement = insert(Alert).values(
-        async with data_connection.begin_nested():
-            await data_connection.execute(
-                insert(Alert).values(
         source_alert_id=str(uuid4()),
         site_id=other_site,
         source="enervision",
@@ -226,7 +230,11 @@ async def test_alert_rejects_prediction_when_site_differs(
         prediction_id=prediction_id,
         raw_data={},
     )
-            )
+    savepoint = data_connection.begin_nested()
+
+    with pytest.raises(IntegrityError):
+        async with savepoint:
+            await data_connection.execute(statement)
 
 
 async def test_recommendation_is_unique_when_alert_and_rule_match(
@@ -256,6 +264,8 @@ async def test_recommendation_is_unique_when_alert_and_rule_match(
     )
     await data_connection.execute(statement)
 
+    savepoint = data_connection.begin_nested()
+
     with pytest.raises(IntegrityError):
-        async with data_connection.begin_nested():
+        async with savepoint:
             await data_connection.execute(statement)

apps/backend/tests/etl/test_historical_import.py

@@ -106,13 +106,15 @@ def test_validate_source_accepts_valid_dataset():
 def test_validate_source_rejects_missing_column():
     frame = make_dataframe().drop(columns=["consumption_kwh"])
 
+    metadata = make_metadata()
+
     with pytest.raises(
         ValueError,
         match="Colonnes obligatoires absentes",
     ):
         validate_source(
             frame,
-            make_metadata(),
+            metadata,
         )
 
 
@@ -124,13 +126,15 @@ def test_validate_source_rejects_duplicates():
         "timestamp",
     ]
 
+    metadata = make_metadata()
+
     with pytest.raises(
         ValueError,
         match="doublons",
     ):
         validate_source(
             frame,
-            make_metadata(),
+            metadata,
         )
 
 
@@ -139,13 +143,15 @@ def test_validate_source_rejects_unknown_site():
 
     frame.loc[1, "site_id"] = "SITE999"
 
+    metadata = make_metadata()
+
     with pytest.raises(
         ValueError,
         match="Sites incohérents",
     ):
         validate_source(
             frame,
-            make_metadata(),
+            metadata,
         )
 
 

apps/backend/tests/repositories/test_audit_log.py

@@ -49,8 +49,10 @@ async def test_the_database_refuses_to_mutate_the_audit_log(
 ) -> None:
     await une_ligne(session)
 
+    requete = text(instruction)
+
     with pytest.raises(DBAPIError, match="ajout seul"):
-        await session.execute(text(instruction))
+        await session.execute(requete)
     await session.rollback()
 
 

apps/backend/tests/repositories/test_password_reset_token.py

@@ -131,11 +131,14 @@ async def test_the_database_refuses_two_tokens_sharing_a_fingerprint(
         user_agent=None,
     )
 
+    empreinte = fingerprint_refresh(secret)
+    expiration = datetime.now(UTC) + DUREE
+
     with pytest.raises(IntegrityError):
         await depot.create(
             user_id=compte,
-            token_hash=fingerprint_refresh(secret),
+            token_hash=empreinte,
-            expires_at=datetime.now(UTC) + DUREE,
+            expires_at=expiration,
             client_ip=None,
             user_agent=None,
         )

apps/backend/tests/repositories/test_refresh_token.py

@@ -178,12 +178,16 @@ async def test_the_database_refuses_two_tokens_sharing_a_fingerprint(
         user_agent=None,
     )
 
+    famille = uuid.uuid4()
+    empreinte = fingerprint_refresh(secret)
+    expiration = datetime.now(UTC) + DUREE
+
     with pytest.raises(IntegrityError):
         await depot.create(
             user_id=compte,
-            family_id=uuid.uuid4(),
+            family_id=famille,
-            token_hash=fingerprint_refresh(secret),
+            token_hash=empreinte,
-            expires_at=datetime.now(UTC) + DUREE,
+            expires_at=expiration,
             client_ip=None,
             user_agent=None,
         )

apps/backend/tests/repositories/test_user.py

@@ -31,14 +31,12 @@ async def test_the_database_refuses_an_email_written_in_upper_case(
 ) -> None:
     saisie = adresse().upper()
 
-    with pytest.raises(IntegrityError):
+    requete = text(
-        await session.execute(
+        "insert into app_user (email, password_hash, role) values (:e, '$argon2id$x', 'lecteur')"
-            text(
-                "insert into app_user (email, password_hash, role) "
-                "values (:e, '$argon2id$x', 'lecteur')"
-            ),
-            {"e": saisie},
     )
+
+    with pytest.raises(IntegrityError):
+        await session.execute(requete, {"e": saisie})
     await session.rollback()
 
 

apps/backend/tests/services/test_reading.py

@@ -116,13 +116,11 @@ async def test_list_history_normalizes_naive_datetimes_to_utc() -> None:
 async def test_list_history_raises_when_start_is_after_end() -> None:
     service = ReadingService(readings=FakeRepository([]))
 
+    debut = datetime(2026, 9, 2, tzinfo=UTC)
+    fin = datetime(2026, 9, 1, tzinfo=UTC)
+
     with pytest.raises(FenetreInverseeError):
-        await service.list_history(
+        await service.list_history(start=debut, end=fin, limit=500, offset=0)
-            start=datetime(2026, 9, 2, tzinfo=UTC),
-            end=datetime(2026, 9, 1, tzinfo=UTC),
-            limit=500,
-            offset=0,
-        )
 
 
 async def test_list_history_raises_when_start_equals_end() -> None:

apps/backend/tests/services/test_user.py

@@ -235,5 +235,7 @@ async def test_every_operation_refuses_an_unknown_account(action: str) -> None:
     if action == "set_active":
         arguments["is_active"] = False
 
+    methode = getattr(attirail.service, action)
+
     with pytest.raises(UserNotFoundError):
-        await getattr(attirail.service, action)(**arguments)
+        await methode(**arguments)

apps/backend/tests/test_cli.py

@@ -19,13 +19,17 @@ def test_build_parser_reads_the_create_admin_arguments() -> None:
 
 
 def test_build_parser_requires_a_subcommand() -> None:
+    parser = cli.build_parser()
+
     with pytest.raises(SystemExit):
-        cli.build_parser().parse_args([])
+        parser.parse_args([])
 
 
 def test_build_parser_requires_an_email() -> None:
+    parser = cli.build_parser()
+
     with pytest.raises(SystemExit):
-        cli.build_parser().parse_args(["create-admin"])
+        parser.parse_args(["create-admin"])
 
 
 def test_read_password_generates_a_long_secret_when_asked(