mirror of
https://github.com/langchain-ai/langgraph.git
synced 2026-09-20 08:37:59 +02:00
654 lines
22 KiB
Python
654 lines
22 KiB
Python
import json
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import httpx
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import pytest
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from langgraph_cli.host_backend import (
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ControlPlaneEndpoints,
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HostBackendClient,
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HostBackendError,
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)
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@pytest.fixture
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def mock_transport():
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return httpx.MockTransport(lambda req: httpx.Response(200, json={"ok": True}))
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@pytest.fixture
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def client(mock_transport):
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c = HostBackendClient(
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"https://api.example.com", "test-key", transport=mock_transport
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)
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return c
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def test_constructor_strips_trailing_slash():
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c = HostBackendClient("https://api.example.com/", "key")
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assert c.base_url == "https://api.example.com"
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def test_constructor_empty_url_raises():
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with pytest.raises(Exception, match="Host backend URL is required"):
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HostBackendClient("", "key")
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def test_request_sends_headers():
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def handler(req: httpx.Request) -> httpx.Response:
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assert req.headers["x-api-key"] == "test-key"
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assert req.headers["accept"] == "application/json"
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return httpx.Response(200, json={"ok": True})
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c = HostBackendClient(
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"https://api.example.com", "test-key", transport=httpx.MockTransport(handler)
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)
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result = c._request("GET", "/test")
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assert result == {"ok": True}
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def test_request_sends_json_payload():
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def handler(req: httpx.Request) -> httpx.Response:
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assert req.headers["content-type"] == "application/json"
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assert req.content == b'{"key":"value"}'
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return httpx.Response(200, json={"created": True})
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c = HostBackendClient(
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"https://api.example.com", "test-key", transport=httpx.MockTransport(handler)
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)
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result = c._request("POST", "/test", {"key": "value"})
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assert result == {"created": True}
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def test_request_empty_body_returns_none():
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transport = httpx.MockTransport(lambda req: httpx.Response(200, content=b""))
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c = HostBackendClient("https://api.example.com", "test-key", transport=transport)
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assert c._request("DELETE", "/test") is None
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def test_request_http_error_raises():
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transport = httpx.MockTransport(lambda req: httpx.Response(404, text="not found"))
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c = HostBackendClient("https://api.example.com", "test-key", transport=transport)
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with pytest.raises(HostBackendError, match="404"):
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c._request("GET", "/missing")
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def test_request_invalid_json_raises():
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transport = httpx.MockTransport(
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lambda req: httpx.Response(200, content=b"not json")
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)
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c = HostBackendClient("https://api.example.com", "test-key", transport=transport)
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with pytest.raises(HostBackendError, match="Failed to decode"):
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c._request("GET", "/bad-json")
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def test_request_transport_error_raises():
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def handler(req: httpx.Request) -> httpx.Response:
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raise httpx.ConnectError("connection refused")
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c = HostBackendClient(
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"https://api.example.com", "test-key", transport=httpx.MockTransport(handler)
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)
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with pytest.raises(HostBackendError, match="connection refused"):
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c._request("GET", "/test")
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def test_create_deployment(client):
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result = client.create_deployment(
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name="my-deploy",
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source="internal_docker",
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source_config={"deployment_type": "dev"},
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source_revision_config={},
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)
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assert result == {"ok": True}
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def test_get_deployment(client):
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result = client.get_deployment("dep-123")
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assert result == {"ok": True}
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def test_list_deployments(client):
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result = client.list_deployments("my-app")
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assert result == {"ok": True}
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def test_list_deployments_sends_query_params():
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def handler(req: httpx.Request) -> httpx.Response:
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assert req.url.path == "/v2/deployments"
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assert req.url.params["name_contains"] == "my app"
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return httpx.Response(200, json={"ok": True})
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c = HostBackendClient(
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"https://api.example.com", "test-key", transport=httpx.MockTransport(handler)
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)
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result = c.list_deployments("my app")
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assert result == {"ok": True}
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def test_delete_deployment(client):
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result = client.delete_deployment("dep-123")
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assert result == {"ok": True}
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def test_request_push_token(client):
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result = client.request_push_token("dep-123")
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assert result == {"ok": True}
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def test_update_deployment(client):
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result = client.update_deployment(
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"dep-123",
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"image:latest",
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revision_source="internal_docker",
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secrets=[{"name": "KEY", "value": "val"}],
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)
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assert result == {"ok": True}
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def test_update_deployment_no_secrets(client):
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result = client.update_deployment(
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"dep-123", "image:latest", revision_source="internal_docker"
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)
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assert result == {"ok": True}
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def _capturing_client(captured: dict) -> HostBackendClient:
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def handler(req: httpx.Request) -> httpx.Response:
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captured["body"] = req.read()
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return httpx.Response(200, json={"ok": True})
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c = HostBackendClient(
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"https://api.example.com", "key", transport=httpx.MockTransport(handler)
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)
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return c
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def test_update_deployment_forwards_tracked_packages():
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captured: dict = {}
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c = _capturing_client(captured)
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c.update_deployment(
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"dep-123",
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"image:latest",
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revision_source="internal_docker",
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tracked_packages=["google-adk:1.0.0"],
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)
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body = json.loads(captured["body"])
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assert body["tracked_packages"] == ["google-adk:1.0.0"]
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assert "tracked_packages" not in body["source_revision_config"]
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def test_update_deployment_omits_tracked_packages_when_absent():
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captured: dict = {}
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c = _capturing_client(captured)
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c.update_deployment("dep-123", "image:latest", revision_source="internal_docker")
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body = json.loads(captured["body"])
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assert "tracked_packages" not in body
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def test_update_deployment_internal_source_forwards_tracked_packages():
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captured: dict = {}
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c = _capturing_client(captured)
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c.update_deployment_internal_source(
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"dep-123",
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source_tarball_path="path/to/tarball",
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config_path="langgraph.json",
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tracked_packages=["google-adk:>=0.5"],
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)
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body = json.loads(captured["body"])
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assert body["tracked_packages"] == ["google-adk:>=0.5"]
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assert body["source_revision_config"]["source_tarball_path"] == "path/to/tarball"
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assert "tracked_packages" not in body["source_revision_config"]
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def test_update_deployment_internal_source_omits_tracked_packages_when_absent():
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captured: dict = {}
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c = _capturing_client(captured)
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c.update_deployment_internal_source(
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"dep-123",
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source_tarball_path="path/to/tarball",
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config_path="langgraph.json",
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)
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body = json.loads(captured["body"])
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assert "tracked_packages" not in body
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def test_list_revisions(client):
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result = client.list_revisions("dep-123", limit=5)
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assert result == {"ok": True}
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def test_get_revision(client):
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result = client.get_revision("dep-123", "rev-456")
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assert result == {"ok": True}
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def test_get_build_logs(client):
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result = client.get_build_logs("proj-1", "rev-1", {"limit": 10})
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assert result == {"ok": True}
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def test_get_deploy_logs_all_revisions():
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def handler(req: httpx.Request) -> httpx.Response:
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assert "/v1/projects/proj-1/deploy_logs" in str(req.url)
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assert "/revisions/" not in str(req.url)
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return httpx.Response(200, json={"logs": [{"message": "running"}]})
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c = HostBackendClient(
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"https://api.example.com", "key", transport=httpx.MockTransport(handler)
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)
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result = c.get_deploy_logs("proj-1", {"limit": 10})
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assert result == {"logs": [{"message": "running"}]}
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def test_get_deploy_logs_specific_revision():
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def handler(req: httpx.Request) -> httpx.Response:
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assert "/v1/projects/proj-1/revisions/rev-2/deploy_logs" in str(req.url)
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return httpx.Response(200, json={"logs": []})
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c = HostBackendClient(
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"https://api.example.com", "key", transport=httpx.MockTransport(handler)
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)
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result = c.get_deploy_logs("proj-1", {"limit": 10}, revision_id="rev-2")
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assert result == {"logs": []}
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def _routing_client(seen: dict) -> HostBackendClient:
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def handler(req: httpx.Request) -> httpx.Response:
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seen["method"] = req.method
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seen["url"] = str(req.url)
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return httpx.Response(200, json={"ok": True})
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c = HostBackendClient(
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"https://api.example.com/prefix", "key", transport=httpx.MockTransport(handler)
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)
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return c
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@pytest.mark.parametrize(
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("call", "expected_body"),
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[
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pytest.param(
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lambda c: c.create_deployment(
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name="my-deploy",
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source="internal_docker",
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source_config={"deployment_type": "dev"},
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source_revision_config={},
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),
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{
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"name": "my-deploy",
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"source": "internal_docker",
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"source_config": {"deployment_type": "dev"},
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"source_revision_config": {},
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},
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id="internal_docker_create_omits_secrets_key_when_not_given",
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),
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pytest.param(
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lambda c: c.create_deployment(
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name="my-deploy",
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source="internal_docker",
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source_config={"deployment_type": "prod"},
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source_revision_config={},
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secrets=[{"name": "KEY", "value": "val"}],
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),
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{
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"name": "my-deploy",
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"source": "internal_docker",
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"source_config": {"deployment_type": "prod"},
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"source_revision_config": {},
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"secrets": [{"name": "KEY", "value": "val"}],
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},
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id="internal_docker_create_forwards_secrets",
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),
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pytest.param(
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lambda c: c.create_deployment(
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name="my-deploy",
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source="internal_source",
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source_config={"deployment_type": "dev"},
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source_revision_config={
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"langgraph_config_path": "apps/agent/langgraph.json"
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},
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),
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{
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"name": "my-deploy",
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"source": "internal_source",
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"source_config": {"deployment_type": "dev"},
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"source_revision_config": {
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"langgraph_config_path": "apps/agent/langgraph.json"
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},
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},
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id="internal_source_create_sends_config_path",
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),
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pytest.param(
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lambda c: c.update_deployment(
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"dep-123",
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"registry.example.com/app@sha256:abc",
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revision_source="internal_docker",
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secrets=[{"name": "KEY", "value": "val"}],
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),
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{
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"revision_source": "internal_docker",
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"source_revision_config": {
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"image_uri": "registry.example.com/app@sha256:abc"
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},
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"secrets": [{"name": "KEY", "value": "val"}],
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},
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id="internal_docker_revision_names_its_source",
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),
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pytest.param(
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lambda c: c.update_deployment_internal_source(
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"dep-123",
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source_tarball_path="tarballs/src.tgz",
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config_path="langgraph.json",
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secrets=[],
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install_command="yarn install",
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build_command="yarn build",
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),
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{
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"revision_source": "internal_source",
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"source_revision_config": {
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"source_tarball_path": "tarballs/src.tgz",
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"langgraph_config_path": "langgraph.json",
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},
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"source_config": {
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"install_command": "yarn install",
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"build_command": "yarn build",
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},
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"secrets": [],
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},
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id="internal_source_revision_sends_js_build_commands",
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),
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pytest.param(
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lambda c: c.update_deployment_internal_source(
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"dep-123",
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source_tarball_path="tarballs/src.tgz",
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config_path="langgraph.json",
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),
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{
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"revision_source": "internal_source",
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"source_revision_config": {
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"source_tarball_path": "tarballs/src.tgz",
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"langgraph_config_path": "langgraph.json",
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},
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},
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id="internal_source_revision_omits_source_config_without_commands",
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),
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],
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)
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def test_request_body_matches_control_plane_contract(call, expected_body):
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captured: dict = {}
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call(_capturing_client(captured))
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assert json.loads(captured["body"]) == expected_body
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@pytest.mark.parametrize(
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("call", "method", "route"),
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[
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pytest.param(
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lambda c: c.create_deployment(
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name="n",
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source="internal_docker",
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source_config={"deployment_type": "dev"},
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source_revision_config={},
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),
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"POST",
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"/v2/deployments",
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id="create_deployment",
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),
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pytest.param(
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lambda c: c.get_deployment("dep-1"),
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"GET",
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"/v2/deployments/dep-1",
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id="get_deployment",
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),
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pytest.param(
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lambda c: c.delete_deployment("dep-1"),
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"DELETE",
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"/v2/deployments/dep-1",
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id="delete_deployment",
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),
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pytest.param(
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lambda c: c.update_deployment("dep-1", "img", revision_source=None),
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"PATCH",
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"/v2/deployments/dep-1",
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id="patch_deployment",
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),
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pytest.param(
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lambda c: c.request_push_token("dep-1"),
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"POST",
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"/v2/deployments/dep-1/push-token",
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id="push_token",
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),
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pytest.param(
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lambda c: c.request_upload_url("dep-1"),
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"POST",
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"/v2/deployments/dep-1/upload-url",
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id="upload_url",
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),
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pytest.param(
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lambda c: c.list_revisions("dep-1", limit=5),
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"GET",
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"/v2/deployments/dep-1/revisions?limit=5",
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id="list_revisions_puts_limit_in_query",
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),
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pytest.param(
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lambda c: c.get_revision("dep-1", "rev-2"),
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"GET",
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"/v2/deployments/dep-1/revisions/rev-2",
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id="get_revision",
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),
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pytest.param(
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lambda c: c.get_build_logs("dep-1", "rev-2", {"limit": 10}),
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"POST",
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"/v1/projects/dep-1/revisions/rev-2/build_logs",
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id="build_logs",
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),
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],
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)
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def test_request_targets_control_plane_route_under_base_url(call, method, route):
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seen: dict = {}
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call(_routing_client(seen))
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assert (seen["method"], seen["url"]) == (
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method,
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f"https://api.example.com/prefix{route}",
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)
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|
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def test_injected_transport_receives_requests_under_the_prefixed_base_url():
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seen: dict = {}
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def handler(req: httpx.Request) -> httpx.Response:
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seen["url"] = str(req.url)
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seen["api_key"] = req.headers["x-api-key"]
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return httpx.Response(200, json={"ok": True})
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|
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c = HostBackendClient(
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"https://smith.example.com/api-host",
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"key",
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transport=httpx.MockTransport(handler),
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)
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assert c.list_revisions("dep-1", limit=2) == {"ok": True}
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assert seen == {
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"url": "https://smith.example.com/api-host/v2/deployments/dep-1/revisions?limit=2",
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"api_key": "key",
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}
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CLOUD = ("https://api.host.langchain.com", "https://smith.langchain.com")
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@pytest.mark.parametrize(
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("host_url", "langsmith_endpoint", "expected"),
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[
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pytest.param(None, None, CLOUD, id="nothing_configured_targets_cloud"),
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pytest.param(
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None, "https://api.smith.langchain.com", CLOUD, id="cloud_langsmith_api"
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),
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pytest.param(
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None,
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"https://api.smith.langchain.com/api/v1",
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CLOUD,
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id="cloud_langsmith_api_with_versioned_path",
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),
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pytest.param(
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None, "https://api.langchain.com", CLOUD, id="cloud_langchain_api_alias"
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),
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pytest.param(
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None,
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"https://xapi.smith.langchain.com",
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CLOUD,
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id="lookalike_cloud_host_is_not_rewritten_into_a_control_plane",
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),
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pytest.param(
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None,
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"https://eu.api.smith.langchain.com",
|
|
("https://eu.api.host.langchain.com", "https://eu.smith.langchain.com"),
|
|
id="eu_cloud_maps_to_eu_control_plane",
|
|
),
|
|
pytest.param(
|
|
None,
|
|
"https://dev.api.smith.langchain.com",
|
|
("https://dev.api.host.langchain.com", "https://dev.smith.langchain.com"),
|
|
id="dev_cloud_maps_to_dev_control_plane",
|
|
),
|
|
pytest.param(
|
|
None,
|
|
"https://aks.smith.langchain.dev/api",
|
|
(
|
|
"https://aks.smith.langchain.dev/api-host",
|
|
"https://aks.smith.langchain.dev",
|
|
),
|
|
id="self_hosted_api_path_becomes_api_host",
|
|
),
|
|
pytest.param(
|
|
None,
|
|
"https://smith.example.com/api/v1",
|
|
("https://smith.example.com/api-host", "https://smith.example.com"),
|
|
id="self_hosted_versioned_api_path_becomes_api_host",
|
|
),
|
|
pytest.param(
|
|
None,
|
|
"https://smith.example.com",
|
|
("https://smith.example.com/api-host", "https://smith.example.com"),
|
|
id="self_hosted_origin_gets_api_host_appended",
|
|
),
|
|
pytest.param(
|
|
None,
|
|
"https://corp.example.com/langsmith/api/v1",
|
|
(
|
|
"https://corp.example.com/langsmith/api-host",
|
|
"https://corp.example.com/langsmith",
|
|
),
|
|
id="self_hosted_path_prefix_is_kept",
|
|
),
|
|
pytest.param(
|
|
"https://custom.host.example",
|
|
"https://aks.smith.langchain.dev/api",
|
|
("https://custom.host.example", "https://smith.langchain.com"),
|
|
id="explicit_host_url_beats_langsmith_endpoint",
|
|
),
|
|
pytest.param(
|
|
"https://api.host.langchain.com",
|
|
"https://aks.smith.langchain.dev/api",
|
|
CLOUD,
|
|
id="explicit_cloud_host_url_beats_self_hosted_endpoint",
|
|
),
|
|
pytest.param(
|
|
"https://smith.example.com/api-host/",
|
|
None,
|
|
("https://smith.example.com/api-host", "https://smith.example.com"),
|
|
id="explicit_api_host_url_derives_dashboard_root",
|
|
),
|
|
pytest.param(
|
|
"https://corp.example.com/langsmith/api-host",
|
|
None,
|
|
(
|
|
"https://corp.example.com/langsmith/api-host",
|
|
"https://corp.example.com/langsmith",
|
|
),
|
|
id="explicit_api_host_url_keeps_path_prefix_in_dashboard",
|
|
),
|
|
pytest.param(
|
|
"http://localhost:8080",
|
|
None,
|
|
("http://localhost:8080", "http://localhost:8080"),
|
|
id="localhost_dashboard_is_the_same_origin",
|
|
),
|
|
pytest.param(
|
|
"http://localhost:8080/api-host",
|
|
None,
|
|
("http://localhost:8080/api-host", "http://localhost:8080"),
|
|
id="localhost_api_host_dashboard_is_the_origin",
|
|
),
|
|
pytest.param(
|
|
"https://eu.api.host.langchain.com",
|
|
None,
|
|
("https://eu.api.host.langchain.com", "https://eu.smith.langchain.com"),
|
|
id="regional_control_plane_maps_to_regional_dashboard",
|
|
),
|
|
],
|
|
)
|
|
def test_control_plane_endpoints_resolve(host_url, langsmith_endpoint, expected):
|
|
endpoints = ControlPlaneEndpoints.resolve(host_url, langsmith_endpoint)
|
|
|
|
assert (endpoints.control_plane_url, endpoints.dashboard_url) == expected
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
("call", "expected_body"),
|
|
[
|
|
pytest.param(
|
|
lambda c: c.create_deployment(
|
|
name="agent",
|
|
source="external_docker",
|
|
source_config={"resource_spec": {}},
|
|
source_revision_config={
|
|
"image_uri": "registry.example.com/agent@sha256:1"
|
|
},
|
|
secrets=[],
|
|
),
|
|
{
|
|
"name": "agent",
|
|
"source": "external_docker",
|
|
"source_config": {"resource_spec": {}},
|
|
"source_revision_config": {
|
|
"image_uri": "registry.example.com/agent@sha256:1"
|
|
},
|
|
"secrets": [],
|
|
},
|
|
id="create_sends_the_source_configs_as_given",
|
|
),
|
|
pytest.param(
|
|
lambda c: c.update_deployment(
|
|
"dep-1", "registry.example.com/agent@sha256:2", revision_source=None
|
|
),
|
|
{
|
|
"source_revision_config": {
|
|
"image_uri": "registry.example.com/agent@sha256:2"
|
|
}
|
|
},
|
|
id="revision_without_source_override_omits_revision_source",
|
|
),
|
|
pytest.param(
|
|
lambda c: c.update_deployment(
|
|
"dep-1",
|
|
"registry.example.com/agent@sha256:2",
|
|
revision_source="internal_docker",
|
|
tracked_packages=["langgraph:1.0.0"],
|
|
),
|
|
{
|
|
"revision_source": "internal_docker",
|
|
"source_revision_config": {
|
|
"image_uri": "registry.example.com/agent@sha256:2"
|
|
},
|
|
"tracked_packages": ["langgraph:1.0.0"],
|
|
},
|
|
id="revision_with_source_override_names_it",
|
|
),
|
|
],
|
|
)
|
|
def test_source_agnostic_client_calls_match_control_plane_contract(call, expected_body):
|
|
captured: dict = {}
|
|
call(_capturing_client(captured))
|
|
assert json.loads(captured["body"]) == expected_body
|