python: deepseek-harness SDK and runtime carrier packages
This commit is contained in:
imccyu
@@ -0,0 +1,592 @@
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from __future__ import annotations
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import json
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import sys
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import threading
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import time
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from pathlib import Path
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import pytest
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from deepseek_harness import DeepSeekHarness, HarnessClient, HarnessConfig
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def test_high_level_sdk_runs_turn_and_collects_final_response(tmp_path: Path) -> None:
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script = tmp_path / "fake_runtime.py"
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env_dump = tmp_path / "env.json"
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script.write_text(
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"""
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import json
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import os
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import sys
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env_dump = os.environ["ENV_DUMP"]
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json.dump({
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"DEEPSEEK_API_KEY": os.environ.get("DEEPSEEK_API_KEY"),
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"DEEPSEEK_BASE_URL": os.environ.get("DEEPSEEK_BASE_URL"),
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"DSH_CWD": os.environ.get("DSH_CWD"),
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"DSH_SESSION_ROOT": os.environ.get("DSH_SESSION_ROOT"),
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"DSH_CORDIS_CONFIG": os.environ.get("DSH_CORDIS_CONFIG"),
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}, open(env_dump, "w"))
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-runtime"}}}), flush=True)
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elif method == "session/prompt":
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params = msg.get("params") or {}
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print(json.dumps({
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"jsonrpc": "2.0",
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"method": "session.event",
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"params": {
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"sessionId": params["sessionId"],
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"event": {
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"type": "assistant/message",
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"data": {"content": [{"type": "text", "text": "hello from runtime"}]},
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},
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},
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}), flush=True)
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print(json.dumps({
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"jsonrpc": "2.0",
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"method": "session.finished",
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"params": {"sessionId": params["sessionId"], "status": "ok"},
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}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with DeepSeekHarness(
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model="deepseek-v4-flash",
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cwd=str(tmp_path),
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cordis=str(tmp_path / "cordis.yml"),
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session_root=str(tmp_path / "sessions"),
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launch_args_override=(sys.executable, str(script)),
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env={
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"ENV_DUMP": str(env_dump),
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"DEEPSEEK_API_KEY": "env-key",
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"DEEPSEEK_BASE_URL": "http://127.0.0.1:4321",
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},
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) as harness:
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result = harness.run("say hello", session_id="main")
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assert result.status == "ok"
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assert result.final_response == "hello from runtime"
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assert result.events[0]["type"] == "assistant/message"
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dumped_env = json.loads(env_dump.read_text())
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assert dumped_env["DEEPSEEK_API_KEY"] == "env-key"
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assert dumped_env["DEEPSEEK_BASE_URL"] == "http://127.0.0.1:4321"
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assert dumped_env["DSH_CWD"] == str(tmp_path)
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assert dumped_env["DSH_SESSION_ROOT"] == str(tmp_path / "sessions")
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assert dumped_env["DSH_CORDIS_CONFIG"] == str(tmp_path / "cordis.yml")
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def test_session_run_invokes_notification_callback_before_returning(tmp_path: Path) -> None:
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script = tmp_path / "fake_runtime.py"
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script.write_text(
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"""
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import json
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import sys
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-runtime"}}}), flush=True)
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elif method == "session/prompt":
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print(json.dumps({"jsonrpc": "2.0", "method": "subagent.started", "params": {"parentSessionId": "main", "childSessionId": "child"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.finished", "params": {"sessionId": "main", "status": "ok"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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seen: list[str] = []
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with DeepSeekHarness(
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launch_args_override=(sys.executable, str(script)),
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cwd=str(tmp_path),
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) as harness:
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session = harness.start_session("main")
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result = session.run(
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"spawn a helper",
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on_notification=lambda notification: seen.append(notification.method),
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)
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assert result.status == "ok"
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assert seen == ["subagent.started", "session.finished"]
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def test_session_run_includes_subagent_finished_for_parent_session(tmp_path: Path) -> None:
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script = tmp_path / "fake_runtime.py"
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script.write_text(
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"""
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import json
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import sys
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-runtime"}}}), flush=True)
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elif method == "session/prompt":
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print(json.dumps({"jsonrpc": "2.0", "method": "subagent.started", "params": {"parentSessionId": "main", "childSessionId": "child"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "subagent.finished", "params": {"parentSessionId": "main", "childSessionId": "child", "status": "ok", "stopReason": "completed"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.finished", "params": {"sessionId": "main", "status": "ok"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with DeepSeekHarness(
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launch_args_override=(sys.executable, str(script)),
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cwd=str(tmp_path),
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) as harness:
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result = harness.run("spawn a helper", session_id="main")
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assert result.status == "ok"
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assert [notification.method for notification in result.notifications] == [
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"subagent.started",
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"subagent.finished",
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"session.finished",
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]
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def test_session_run_ignores_notifications_for_other_sessions(tmp_path: Path) -> None:
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script = tmp_path / "fake_runtime.py"
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script.write_text(
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"""
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import json
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import sys
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-runtime"}}}), flush=True)
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elif method == "session/prompt":
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params = msg.get("params") or {}
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print(json.dumps({"jsonrpc": "2.0", "method": "session.event", "params": {"sessionId": "other", "event": {"type": "assistant/message", "data": {"content": [{"type": "text", "text": "wrong session"}]}}}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.finished", "params": {"sessionId": "other", "status": "ok"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.event", "params": {"sessionId": params["sessionId"], "event": {"type": "assistant/message", "data": {"content": [{"type": "text", "text": "right session"}]}}}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.finished", "params": {"sessionId": params["sessionId"], "status": "ok"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with DeepSeekHarness(
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launch_args_override=(sys.executable, str(script)),
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cwd=str(tmp_path),
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) as harness:
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result = harness.run("stay in your lane", session_id="main")
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assert result.status == "ok"
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assert result.final_response == "right session"
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assert [notification.payload.get("sessionId") for notification in result.notifications] == ["main", "main"]
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def test_high_level_session_run_does_not_accumulate_global_notifications(tmp_path: Path) -> None:
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script = tmp_path / "fake_runtime.py"
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script.write_text(
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"""
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import json
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import sys
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-runtime"}}}), flush=True)
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elif method == "session/prompt":
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params = msg.get("params") or {}
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print(json.dumps({"jsonrpc": "2.0", "method": "session.event", "params": {"sessionId": params["sessionId"], "event": {"type": "assistant/message", "data": {"content": [{"type": "text", "text": "ok"}]}}}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.finished", "params": {"sessionId": params["sessionId"], "status": "ok"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with DeepSeekHarness(launch_args_override=(sys.executable, str(script)), cwd=str(tmp_path)) as harness:
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result = harness.run("one turn", session_id="main")
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assert result.status == "ok"
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assert harness.client._notifications.qsize() == 0
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def test_session_run_waits_for_late_finished_without_replaying_stale_notifications(tmp_path: Path) -> None:
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script = tmp_path / "fake_runtime.py"
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script.write_text(
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"""
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import json
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import sys
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import time
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turn = 0
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-runtime"}}}), flush=True)
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elif method == "session/prompt":
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turn += 1
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params = msg.get("params") or {}
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session_id = params["sessionId"]
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if turn == 1:
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print(json.dumps({"jsonrpc": "2.0", "method": "session.event", "params": {"sessionId": session_id, "event": {"type": "assistant/message", "data": {"content": [{"type": "text", "text": "first"}]}}}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.finished", "params": {"sessionId": session_id, "status": "ok"}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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else:
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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time.sleep(0.05)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.event", "params": {"sessionId": session_id, "event": {"type": "assistant/message", "data": {"content": [{"type": "text", "text": "second"}]}}}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "method": "session.finished", "params": {"sessionId": session_id, "status": "ok"}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with DeepSeekHarness(launch_args_override=(sys.executable, str(script)), cwd=str(tmp_path)) as harness:
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first = harness.run("first turn", session_id="main")
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second = harness.run("second turn", session_id="main")
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assert first.final_response == "first"
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assert second.final_response == "second"
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assert [notification.payload.get("sessionId") for notification in second.notifications] == ["main", "main"]
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def test_client_starts_subprocess_sends_requests_and_routes_notifications(tmp_path: Path) -> None:
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script = tmp_path / "fake_bridge.py"
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script.write_text(
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"""
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import json
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import sys
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-dsh"}}}), flush=True)
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elif method == "session/prompt":
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params = msg.get("params") or {}
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print(json.dumps({"jsonrpc": "2.0", "method": "llm/request", "params": {"requestId": "req-1", "sessionId": params["sessionId"], "model": "dsagent", "messages": []}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": True}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with HarnessClient(
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HarnessConfig(launch_args_override=(sys.executable, str(script)))
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) as client:
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init = client.initialize(cwd="/workspace", model="dsagent")
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assert init.serverInfo.name == "fake-dsh"
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client.session_prompt("main", [{"type": "text", "text": "fix it"}], profile="build")
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notification = client.next_notification()
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assert notification.method == "llm/request"
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assert notification.payload["requestId"] == "req-1"
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assert notification.payload["sessionId"] == "main"
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def test_client_keeps_unmatched_notifications_available_globally_while_subscribed() -> None:
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client = HarnessClient()
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with client.subscribe_session_notifications("main"):
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client._handle_message({
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"jsonrpc": "2.0",
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"method": "session.event",
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"params": {"sessionId": "other", "event": {"type": "assistant/message"}},
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})
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assert client._notifications.qsize() == 1
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notification = client._notifications.get_nowait()
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assert not isinstance(notification, BaseException)
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assert notification.method == "session.event"
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assert notification.payload["sessionId"] == "other"
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def test_client_rejects_unaccepted_session_prompt_response(tmp_path: Path) -> None:
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script = tmp_path / "fake_bridge.py"
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script.write_text(
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"""
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import json
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import sys
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-dsh"}}}), flush=True)
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elif method == "session/prompt":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"accepted": False}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with HarnessClient(HarnessConfig(launch_args_override=(sys.executable, str(script)))) as client:
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client.initialize(cwd="/workspace", model="dsagent")
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with pytest.raises(ValueError):
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client.session_prompt("main", [{"type": "text", "text": "fix it"}], profile="build")
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def test_client_routes_bridge_requests_and_sends_responses(tmp_path: Path) -> None:
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script = tmp_path / "fake_bridge.py"
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script.write_text(
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"""
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import json
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import sys
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for line in sys.stdin:
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msg = json.loads(line)
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method = msg.get("method")
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if method == "initialize":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-dsh"}}}), flush=True)
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print(json.dumps({"jsonrpc": "2.0", "id": "bridge-req-1", "method": "llm.request", "params": {"requestId": "req-1", "sessionId": "main", "model": "dsagent", "messages": []}}), flush=True)
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elif "id" in msg and "method" not in msg:
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print(json.dumps({"jsonrpc": "2.0", "method": "response/seen", "params": {"result": msg.get("result")}}), flush=True)
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elif method == "shutdown":
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print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
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break
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""".strip()
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)
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with HarnessClient(
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HarnessConfig(launch_args_override=(sys.executable, str(script)))
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) as client:
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client.initialize(cwd="/workspace", model="dsagent")
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request = client.next_request()
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assert request.id == "bridge-req-1"
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assert request.method == "llm.request"
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assert request.payload["requestId"] == "req-1"
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client.respond(request.id, {"content_blocks": [{"type": "text", "text": "done"}]})
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notification = client.next_notification()
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assert notification.method == "response/seen"
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assert notification.payload["result"]["content_blocks"][0]["text"] == "done"
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def test_client_ignores_non_json_stdout_lines(tmp_path: Path) -> None:
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script = tmp_path / "fake_bridge.py"
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script.write_text(
|
||||
"""
|
||||
import json
|
||||
import sys
|
||||
|
||||
print("node warning: experimental loader", flush=True)
|
||||
for line in sys.stdin:
|
||||
msg = json.loads(line)
|
||||
if msg.get("method") == "initialize":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-dsh"}}}), flush=True)
|
||||
elif msg.get("method") == "shutdown":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
|
||||
break
|
||||
""".strip()
|
||||
)
|
||||
|
||||
with HarnessClient(
|
||||
HarnessConfig(launch_args_override=(sys.executable, str(script)))
|
||||
) as client:
|
||||
init = client.initialize(cwd="/workspace", model="dsagent")
|
||||
assert init.serverInfo.name == "fake-dsh"
|
||||
|
||||
|
||||
def test_client_request_times_out_when_bridge_does_not_respond(tmp_path: Path) -> None:
|
||||
script = tmp_path / "fake_bridge.py"
|
||||
script.write_text(
|
||||
"""
|
||||
import time
|
||||
|
||||
time.sleep(60)
|
||||
""".strip()
|
||||
)
|
||||
|
||||
with HarnessClient(
|
||||
HarnessConfig(
|
||||
launch_args_override=(sys.executable, str(script)),
|
||||
request_timeout_seconds=0.1,
|
||||
)
|
||||
) as client:
|
||||
start = time.monotonic()
|
||||
try:
|
||||
client.initialize(cwd="/workspace", model="dsagent")
|
||||
except TimeoutError:
|
||||
assert time.monotonic() - start < 2
|
||||
else:
|
||||
raise AssertionError("initialize should time out")
|
||||
|
||||
|
||||
def test_client_close_times_out_when_shutdown_does_not_respond(tmp_path: Path) -> None:
|
||||
script = tmp_path / "fake_bridge.py"
|
||||
script.write_text(
|
||||
"""
|
||||
import json
|
||||
import sys
|
||||
import time
|
||||
|
||||
for line in sys.stdin:
|
||||
msg = json.loads(line)
|
||||
if msg.get("method") == "initialize":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-dsh"}}}), flush=True)
|
||||
elif msg.get("method") == "shutdown":
|
||||
time.sleep(60)
|
||||
""".strip()
|
||||
)
|
||||
|
||||
client = HarnessClient(
|
||||
HarnessConfig(
|
||||
launch_args_override=(sys.executable, str(script)),
|
||||
shutdown_timeout_seconds=0.1,
|
||||
)
|
||||
)
|
||||
client.start()
|
||||
client.initialize(cwd="/workspace", model="dsagent")
|
||||
start = time.monotonic()
|
||||
client.close()
|
||||
assert time.monotonic() - start < 2
|
||||
|
||||
|
||||
def test_client_close_is_idempotent_before_and_after_start(tmp_path: Path) -> None:
|
||||
HarnessClient().close()
|
||||
|
||||
script = tmp_path / "fake_bridge.py"
|
||||
script.write_text(
|
||||
"""
|
||||
import json
|
||||
import sys
|
||||
|
||||
for line in sys.stdin:
|
||||
msg = json.loads(line)
|
||||
if msg.get("method") == "initialize":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-dsh"}}}), flush=True)
|
||||
elif msg.get("method") == "shutdown":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
|
||||
break
|
||||
""".strip()
|
||||
)
|
||||
|
||||
client = HarnessClient(HarnessConfig(launch_args_override=(sys.executable, str(script))))
|
||||
client.start()
|
||||
client.initialize(cwd="/workspace", model="dsagent")
|
||||
client.close()
|
||||
client.close()
|
||||
|
||||
|
||||
def test_runtime_closed_error_includes_stderr_tail(tmp_path: Path) -> None:
|
||||
script = tmp_path / "crashing_runtime.py"
|
||||
script.write_text(
|
||||
"""
|
||||
import sys
|
||||
|
||||
print("fatal bridge exploded", file=sys.stderr, flush=True)
|
||||
sys.exit(42)
|
||||
""".strip()
|
||||
)
|
||||
|
||||
with HarnessClient(
|
||||
HarnessConfig(
|
||||
launch_args_override=(sys.executable, str(script)),
|
||||
request_timeout_seconds=2,
|
||||
)
|
||||
) as client:
|
||||
with pytest.raises(Exception, match="fatal bridge exploded"):
|
||||
client.initialize(cwd="/workspace", model="dsagent")
|
||||
|
||||
|
||||
def test_client_serializes_concurrent_writes(tmp_path: Path) -> None:
|
||||
script = tmp_path / "fake_bridge.py"
|
||||
output = tmp_path / "seen.jsonl"
|
||||
script.write_text(
|
||||
"""
|
||||
import json
|
||||
import os
|
||||
import sys
|
||||
|
||||
with open(os.environ["SEEN"], "w") as seen:
|
||||
for line in sys.stdin:
|
||||
seen.write(line)
|
||||
seen.flush()
|
||||
msg = json.loads(line)
|
||||
if "id" in msg and msg.get("method") == "initialize":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "fake-dsh"}}}), flush=True)
|
||||
elif "id" in msg and msg.get("method") == "shutdown":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
|
||||
break
|
||||
""".strip()
|
||||
)
|
||||
|
||||
with HarnessClient(
|
||||
HarnessConfig(
|
||||
launch_args_override=(sys.executable, str(script)),
|
||||
env={"SEEN": str(output)},
|
||||
)
|
||||
) as client:
|
||||
client.initialize(cwd="/workspace", model="dsagent")
|
||||
threads = [
|
||||
threading.Thread(target=client.notify, args=(f"notice-{index}", {"index": index}))
|
||||
for index in range(50)
|
||||
]
|
||||
for thread in threads:
|
||||
thread.start()
|
||||
for thread in threads:
|
||||
thread.join()
|
||||
|
||||
for line in output.read_text().splitlines():
|
||||
json.loads(line)
|
||||
|
||||
|
||||
def test_client_uses_bundled_runtime_package_by_default(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
runtime = tmp_path / "dsh-jsonrpc-agent"
|
||||
runtime.write_text(
|
||||
"""#!/usr/bin/env python3
|
||||
import json
|
||||
import sys
|
||||
|
||||
for line in sys.stdin:
|
||||
msg = json.loads(line)
|
||||
if msg.get("method") == "initialize":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {"serverInfo": {"name": "bundled-runtime"}}}), flush=True)
|
||||
elif msg.get("method") == "shutdown":
|
||||
print(json.dumps({"jsonrpc": "2.0", "id": msg["id"], "result": {}}), flush=True)
|
||||
break
|
||||
""".strip()
|
||||
)
|
||||
runtime.chmod(0o755)
|
||||
|
||||
module_dir = tmp_path / "deepseek_harness_runtime"
|
||||
module_dir.mkdir()
|
||||
(module_dir / "__init__.py").write_text(
|
||||
f"""
|
||||
def resolve_bundled_launch_args(mode=None):
|
||||
return ({str(runtime)!r},)
|
||||
""".strip()
|
||||
)
|
||||
|
||||
monkeypatch.syspath_prepend(str(tmp_path))
|
||||
monkeypatch.delitem(sys.modules, "deepseek_harness_runtime", raising=False)
|
||||
|
||||
with HarnessClient() as client:
|
||||
init = client.initialize(cwd="/workspace", model="deepseek-v4-pro")
|
||||
|
||||
assert init.serverInfo.name == "bundled-runtime"
|
||||
|
||||
|
||||
def test_client_reports_missing_bundled_runtime_dependency(monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
monkeypatch.delitem(sys.modules, "deepseek_harness_runtime", raising=False)
|
||||
monkeypatch.setattr(sys, "path", [])
|
||||
|
||||
with pytest.raises(FileNotFoundError, match="Install deepseek-harness-runtime-bin"):
|
||||
HarnessClient().start()
|
||||
Reference in New Issue
Block a user