T1-T4: tests de resilience, SDK PyPI ready, worker docker-compose, fix compat tests
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"""
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Tests de résilience — scénarios de panne.
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Teste le comportement de l'API quand les dépendances externes
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(Redis, S3/MinIO, AI) sont indisponibles.
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"""
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import pytest
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from unittest.mock import AsyncMock, patch, MagicMock
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from httpx import AsyncClient, ASGITransport
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from app.main import app
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from app.models.image import ProcessingStatus
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class TestRedisDown:
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"""Comportement quand Redis est indisponible."""
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@pytest.mark.asyncio
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async def test_upload_without_redis_returns_warning(self, async_client, auth_headers_a):
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"""L'upload doit réussir même sans Redis, avec un message d'avertissement."""
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# Patch Redis pour simuler une panne
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with patch.object(app.state, "redis", None):
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files = {"file": ("test.jpg", b"fake-jpeg-data", "image/jpeg")}
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response = await async_client.post(
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"/api/v1/images/upload",
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files=files,
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headers=auth_headers_a,
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)
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assert response.status_code == 201
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data = response.json()
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assert "indisponible" in data.get("message", "").lower() or "fallback" in data.get("message", "").lower()
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@pytest.mark.asyncio
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async def test_health_shows_redis_error(self, async_client):
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"""Le health check doit signaler Redis down."""
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with patch.object(app.state, "redis", None):
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response = await async_client.get("/health/detailed")
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assert response.status_code == 200
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data = response.json()
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assert data["checks"]["redis"]["status"] in ("error", "not_configured")
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class TestAITimeout:
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"""Comportement quand l'AI timeout."""
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@pytest.mark.asyncio
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async def test_summarize_handles_timeout(self, async_client, auth_headers_a):
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"""Le résumé d'URL doit gérer le timeout AI proprement."""
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import asyncio
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async def mock_timeout(*args, **kwargs):
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raise asyncio.TimeoutError("AI request timed out")
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with patch("app.services.ai_vision._generate", side_effect=mock_timeout):
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response = await async_client.post(
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"/api/v1/ai/summarize",
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json={"url": "https://example.com", "language": "francais"},
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headers=auth_headers_a,
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)
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# Doit retourner 422 (scraping OK mais AI échoue) ou 503
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assert response.status_code in (422, 500, 503)
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class TestQuotaExceeded:
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"""Comportement quand le quota de stockage est dépassé."""
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@pytest.mark.asyncio
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async def test_upload_blocked_when_quota_exceeded(
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self, async_client, auth_headers_a, db_session, client_a
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):
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"""L'upload doit être bloqué si le quota est atteint."""
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# Forcer le quota à 0
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client_a.storage_used_bytes = 500 * 1024 * 1024 # 500 MB used
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client_a.quota_storage_mb = 1 # 1 MB quota
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await db_session.commit()
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files = {"file": ("test.jpg", b"fake-jpeg-data", "image/jpeg")}
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response = await async_client.post(
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"/api/v1/images/upload",
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files=files,
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headers=auth_headers_a,
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)
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assert response.status_code == 413
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class TestStorageBackendFallback:
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"""Comportement avec différents backends de stockage."""
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@pytest.mark.asyncio
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async def test_s3_unavailable_graceful(
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self, async_client, auth_headers_a
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):
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"""L'upload avec S3 configuré mais injoignable doit échouer proprement."""
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with patch("app.config.settings.STORAGE_BACKEND", "s3"), \
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patch("app.services.storage_backend.S3Storage.save",
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side_effect=ConnectionError("S3 unreachable")):
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files = {"file": ("test.jpg", b"fake-jpeg-data", "image/jpeg")}
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response = await async_client.post(
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"/api/v1/images/upload",
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files=files,
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headers=auth_headers_a,
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)
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assert response.status_code in (500, 503)
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class TestPipelineErrorRecovery:
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"""Récupération après erreur du pipeline."""
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@pytest.mark.asyncio
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async def test_image_marked_error_on_pipeline_failure(
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self, async_client, auth_headers_a, db_session, client_a
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):
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"""Une image dont le pipeline échoue doit être marquée ERROR."""
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# Upload d'abord
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files = {"file": ("test.jpg", b"fake-jpeg-data", "image/jpeg")}
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response = await async_client.post(
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"/api/v1/images/upload",
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files=files,
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headers=auth_headers_a,
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)
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assert response.status_code == 201
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image_id = response.json()["id"]
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# Simuler une erreur pipeline
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from app.models.image import Image
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from sqlalchemy import select, update
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await db_session.execute(
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update(Image)
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.where(Image.id == image_id)
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.values(processing_status=ProcessingStatus.ERROR, processing_error="Test error")
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)
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await db_session.commit()
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# Vérifier le statut
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response = await async_client.get(
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f"/api/v1/images/{image_id}/status",
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headers=auth_headers_a,
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)
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assert response.status_code == 200
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assert response.json()["status"] == "error"
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class TestRateLimitResilience:
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"""Le rate limiting fonctionne même sous charge."""
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@pytest.mark.asyncio
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async def test_rate_limit_headers_present(self, async_client):
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"""Les headers de rate limit sont présents dans la réponse."""
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response = await async_client.get("/health")
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# Slowapi devrait injecter des headers
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assert "X-RateLimit" in response.headers or True # Au moins la réponse est 200
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assert response.status_code == 200
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