111 lines
4.0 KiB
Python
111 lines
4.0 KiB
Python
"""Tests for cache-friendly prompt construction."""
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from __future__ import annotations
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import datetime as datetime_module
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from datetime import datetime as real_datetime
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from importlib.resources import files as pkg_files
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from pathlib import Path
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from nanobot.agent.context import ContextBuilder
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class _FakeDatetime(real_datetime):
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current = real_datetime(2026, 2, 24, 13, 59)
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@classmethod
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def now(cls, tz=None): # type: ignore[override]
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return cls.current
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def _make_workspace(tmp_path: Path) -> Path:
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workspace = tmp_path / "workspace"
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workspace.mkdir(parents=True)
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return workspace
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def test_bootstrap_files_are_backed_by_templates() -> None:
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template_dir = pkg_files("nanobot") / "templates"
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for filename in ContextBuilder.BOOTSTRAP_FILES:
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assert (template_dir / filename).is_file(), f"missing bootstrap template: {filename}"
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def test_system_prompt_stays_stable_when_clock_changes(tmp_path, monkeypatch) -> None:
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"""System prompt should not change just because wall clock minute changes."""
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monkeypatch.setattr(datetime_module, "datetime", _FakeDatetime)
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workspace = _make_workspace(tmp_path)
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builder = ContextBuilder(workspace)
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_FakeDatetime.current = real_datetime(2026, 2, 24, 13, 59)
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prompt1 = builder.build_system_prompt()
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_FakeDatetime.current = real_datetime(2026, 2, 24, 14, 0)
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prompt2 = builder.build_system_prompt()
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assert prompt1 == prompt2
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def test_system_prompt_mentions_workspace_out_for_generated_artifacts(tmp_path) -> None:
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workspace = _make_workspace(tmp_path)
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builder = ContextBuilder(workspace)
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prompt = builder.build_system_prompt()
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assert f"Put generated artifacts meant for delivery to the user under: {workspace}/out" in prompt
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assert "Channels that need public URLs for local delivery artifacts expect files under " in prompt
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assert "`mediaBaseUrl` at your own static file server for that directory." in prompt
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def test_runtime_context_is_separate_untrusted_user_message(tmp_path) -> None:
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"""Runtime metadata should be merged with the user message."""
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workspace = _make_workspace(tmp_path)
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builder = ContextBuilder(workspace)
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messages = builder.build_messages(
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history=[],
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current_message="Return exactly: OK",
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channel="cli",
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chat_id="direct",
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)
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assert messages[0]["role"] == "system"
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assert "## Current Session" not in messages[0]["content"]
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# Runtime context is now merged with user message into a single message
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assert messages[-1]["role"] == "user"
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user_content = messages[-1]["content"]
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assert isinstance(user_content, str)
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assert ContextBuilder._RUNTIME_CONTEXT_TAG in user_content
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assert "Current Time:" in user_content
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assert "Channel: cli" in user_content
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assert "Chat ID: direct" in user_content
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assert "Return exactly: OK" in user_content
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def test_persona_prompt_uses_persona_overrides_and_memory(tmp_path: Path) -> None:
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workspace = _make_workspace(tmp_path)
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(workspace / "AGENTS.md").write_text("root agents", encoding="utf-8")
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(workspace / "SOUL.md").write_text("root soul", encoding="utf-8")
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(workspace / "USER.md").write_text("root user", encoding="utf-8")
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(workspace / "memory").mkdir()
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(workspace / "memory" / "MEMORY.md").write_text("root memory", encoding="utf-8")
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persona_dir = workspace / "personas" / "coder"
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persona_dir.mkdir(parents=True)
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(persona_dir / "SOUL.md").write_text("coder soul", encoding="utf-8")
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(persona_dir / "USER.md").write_text("coder user", encoding="utf-8")
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(persona_dir / "memory").mkdir()
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(persona_dir / "memory" / "MEMORY.md").write_text("coder memory", encoding="utf-8")
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builder = ContextBuilder(workspace)
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prompt = builder.build_system_prompt(persona="coder")
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assert "Current persona: coder" in prompt
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assert "root agents" in prompt
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assert "coder soul" in prompt
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assert "coder user" in prompt
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assert "coder memory" in prompt
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assert "root memory" not in prompt
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