add AI and generation routers, models, and OpenRouter service integration with tests
Co-authored-by: Copilot <copilot@github.com>
This commit is contained in:
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"""Tests for generate endpoints — all OpenRouter calls mocked."""
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import os
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import pytest
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import pytest_asyncio
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from unittest.mock import AsyncMock, patch
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from httpx import AsyncClient, ASGITransport
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from backend.app.main import app
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from backend.app import db as db_module
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os.environ.setdefault("JWT_SECRET", "test-secret-key-for-testing-only")
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os.environ.setdefault("OPENROUTER_API_KEY", "test-key")
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FAKE_CHAT = {
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"id": "gen-text-1",
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"model": "openai/gpt-4o",
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"choices": [{"message": {"role": "assistant", "content": "Once upon a time..."}}],
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"usage": {"prompt_tokens": 5, "completion_tokens": 10, "total_tokens": 15},
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}
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FAKE_IMAGE = {
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"id": "gen-img-1",
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"model": "openai/dall-e-3",
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"data": [
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{"url": "https://example.com/image.png",
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"revised_prompt": "A cat on the moon"},
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],
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}
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FAKE_VIDEO = {
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"id": "gen-vid-1",
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"model": "stability/stable-video",
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"status": "queued",
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"video_url": None,
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"metadata": {"estimated_seconds": 30},
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}
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FAKE_VIDEO_DONE = {
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"id": "gen-vid-2",
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"model": "runway/gen-3",
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"status": "completed",
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"video_url": "https://example.com/video.mp4",
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"metadata": None,
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}
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@pytest.fixture(autouse=True)
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def fresh_db():
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db_module._conn = None
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db_module.init_db(":memory:")
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yield
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db_module.close_db()
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db_module._conn = None
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@pytest_asyncio.fixture
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async def client(fresh_db):
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transport = ASGITransport(app=app)
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async with AsyncClient(transport=transport, base_url="http://test") as ac:
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yield ac
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async def _user_token(client):
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await client.post("/auth/register", json={"email": "user@example.com", "password": "secret123"})
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resp = await client.post("/auth/login", json={"email": "user@example.com", "password": "secret123"})
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return resp.json()["access_token"]
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# ---------------------------------------------------------------------------
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# POST /generate/text
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# ---------------------------------------------------------------------------
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async def test_generate_text(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.chat_completion", new_callable=AsyncMock, return_value=FAKE_CHAT):
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resp = await client.post(
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"/generate/text",
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json={"model": "openai/gpt-4o", "prompt": "Tell me a story"},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 200
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data = resp.json()
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assert data["content"] == "Once upon a time..."
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assert data["id"] == "gen-text-1"
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assert data["usage"]["total_tokens"] == 15
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async def test_generate_text_with_system_prompt(client):
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token = await _user_token(client)
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mock = AsyncMock(return_value=FAKE_CHAT)
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with patch("backend.app.routers.generate.openrouter.chat_completion", mock):
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await client.post(
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"/generate/text",
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json={"model": "openai/gpt-4o", "prompt": "Hello",
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"system_prompt": "Be concise."},
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headers={"Authorization": f"Bearer {token}"},
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)
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call_messages = mock.call_args.kwargs["messages"]
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assert call_messages[0] == {"role": "system", "content": "Be concise."}
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assert call_messages[1] == {"role": "user", "content": "Hello"}
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async def test_generate_text_unauthenticated(client):
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resp = await client.post("/generate/text", json={"model": "openai/gpt-4o", "prompt": "Hi"})
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assert resp.status_code == 401
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async def test_generate_text_upstream_error(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.chat_completion", new_callable=AsyncMock, side_effect=Exception("timeout")):
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resp = await client.post(
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"/generate/text",
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json={"model": "openai/gpt-4o", "prompt": "Hi"},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 502
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# ---------------------------------------------------------------------------
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# POST /generate/image
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# ---------------------------------------------------------------------------
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async def test_generate_image(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.generate_image", new_callable=AsyncMock, return_value=FAKE_IMAGE):
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resp = await client.post(
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"/generate/image",
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json={"model": "openai/dall-e-3", "prompt": "A cat on the moon"},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 200
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data = resp.json()
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assert data["id"] == "gen-img-1"
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assert len(data["images"]) == 1
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assert data["images"][0]["url"] == "https://example.com/image.png"
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assert data["images"][0]["revised_prompt"] == "A cat on the moon"
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async def test_generate_image_unauthenticated(client):
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resp = await client.post("/generate/image", json={"model": "openai/dall-e-3", "prompt": "Hi"})
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assert resp.status_code == 401
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async def test_generate_image_upstream_error(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.generate_image", new_callable=AsyncMock, side_effect=Exception("rate limit")):
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resp = await client.post(
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"/generate/image",
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json={"model": "openai/dall-e-3", "prompt": "Hi"},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 502
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# ---------------------------------------------------------------------------
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# POST /generate/video
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# ---------------------------------------------------------------------------
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async def test_generate_video(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.generate_video", new_callable=AsyncMock, return_value=FAKE_VIDEO):
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resp = await client.post(
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"/generate/video",
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json={"model": "stability/stable-video",
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"prompt": "Ocean waves at sunset"},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 200
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data = resp.json()
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assert data["id"] == "gen-vid-1"
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assert data["status"] == "queued"
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assert data["video_url"] is None
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assert data["metadata"]["estimated_seconds"] == 30
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async def test_generate_video_unauthenticated(client):
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resp = await client.post("/generate/video", json={"model": "m", "prompt": "p"})
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assert resp.status_code == 401
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async def test_generate_video_upstream_error(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.generate_video", new_callable=AsyncMock, side_effect=Exception("503")):
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resp = await client.post(
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"/generate/video",
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json={"model": "stability/stable-video", "prompt": "Hi"},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 502
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# ---------------------------------------------------------------------------
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# POST /generate/video/from-image
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# ---------------------------------------------------------------------------
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async def test_generate_video_from_image(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.generate_video_from_image", new_callable=AsyncMock, return_value=FAKE_VIDEO_DONE):
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resp = await client.post(
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"/generate/video/from-image",
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json={
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"model": "runway/gen-3",
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"image_url": "https://example.com/cat.jpg",
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"prompt": "Cat runs across the room",
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},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 200
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data = resp.json()
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assert data["status"] == "completed"
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assert data["video_url"] == "https://example.com/video.mp4"
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async def test_generate_video_from_image_unauthenticated(client):
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resp = await client.post(
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"/generate/video/from-image",
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json={"model": "m", "image_url": "https://example.com/img.jpg", "prompt": "p"},
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)
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assert resp.status_code == 401
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async def test_generate_video_from_image_upstream_error(client):
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token = await _user_token(client)
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with patch("backend.app.routers.generate.openrouter.generate_video_from_image", new_callable=AsyncMock, side_effect=Exception("error")):
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resp = await client.post(
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"/generate/video/from-image",
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json={"model": "runway/gen-3",
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"image_url": "https://example.com/img.jpg", "prompt": "p"},
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headers={"Authorization": f"Bearer {token}"},
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)
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assert resp.status_code == 502
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