107 lines
4 KiB
Python
107 lines
4 KiB
Python
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import json
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import subprocess
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from unittest.mock import MagicMock, patch
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import pytest
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from glas_harness.contract import Rein, SandboxHandle, ToolCall
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from glas_harness.reins.rein_openweights import ReinOpenWeights, ReinOpenWeightsNotInstalled
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def test_is_rein_subclass() -> None:
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assert issubclass(ReinOpenWeights, Rein)
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def test_bin_raises_if_not_installed() -> None:
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rein = ReinOpenWeights(cli_bin="does-not-exist-binary")
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with pytest.raises(ReinOpenWeightsNotInstalled):
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rein._bin()
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def test_start_session_writes_task_file_and_captures_head(tmp_path) -> None:
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repo = tmp_path / "repo"
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repo.mkdir()
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subprocess.run(["git", "init", "-q"], cwd=repo, check=True)
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subprocess.run(["git", "commit", "-q", "--allow-empty", "-m", "init"], cwd=repo, check=True)
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rein = ReinOpenWeights()
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sandbox = SandboxHandle(sandbox_id="abc", host="localhost", reachability={"workspace_dir": str(repo)})
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session = rein.start_session(
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profile={"id": "harness.agent-dev-local"},
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inputs={"title": "t", "description": "d"},
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sandbox=sandbox,
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)
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assert session["target_repo"] == str(repo)
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assert session["head_before"]
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task_spec = json.loads(open(session["task_file"]).read())
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assert task_spec["title"] == "t"
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assert task_spec["target_repo"] == str(repo)
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def test_start_session_requires_resolvable_target_repo() -> None:
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rein = ReinOpenWeights()
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sandbox = SandboxHandle(sandbox_id="abc", host="localhost", reachability={})
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with pytest.raises(ValueError, match="target_repo"):
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rein.start_session(profile={}, inputs={"title": "t", "description": "d"}, sandbox=sandbox)
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def test_dispatch_tool_invokes_rein_openweights_cli() -> None:
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rein = ReinOpenWeights()
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session = {"task_file": "/tmp/task.json"}
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fake_result = MagicMock(returncode=0, stdout="ok", stderr="")
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with patch.object(rein, "_bin", return_value="/usr/bin/rein-openweights"):
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with patch("glas_harness.reins.rein_openweights.subprocess.run", return_value=fake_result) as run:
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result = rein.dispatch_tool(session, ToolCall(name="run_task"))
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argv = run.call_args.args[0]
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assert argv[:3] == ["/usr/bin/rein-openweights", "run", "--task-file"]
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assert "--no-hub" in argv
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assert result.ok is True
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assert result.output == "ok"
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def test_dispatch_tool_passes_model_when_set() -> None:
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rein = ReinOpenWeights(model="meta-llama/llama-3.1-70b-instruct")
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session = {"task_file": "/tmp/task.json"}
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fake_result = MagicMock(returncode=0, stdout="ok", stderr="")
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with patch.object(rein, "_bin", return_value="/usr/bin/rein-openweights"):
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with patch("glas_harness.reins.rein_openweights.subprocess.run", return_value=fake_result) as run:
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rein.dispatch_tool(session, ToolCall(name="run_task"))
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argv = run.call_args.args[0]
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assert "--model" in argv
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assert "meta-llama/llama-3.1-70b-instruct" in argv
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def test_dispatch_tool_reports_failure() -> None:
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rein = ReinOpenWeights()
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session = {"task_file": "/tmp/task.json"}
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fake_result = MagicMock(returncode=1, stdout="", stderr="boom")
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with patch.object(rein, "_bin", return_value="/usr/bin/rein-openweights"):
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with patch("glas_harness.reins.rein_openweights.subprocess.run", return_value=fake_result):
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result = rein.dispatch_tool(session, ToolCall(name="run_task"))
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assert result.ok is False
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assert result.error == "boom"
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def test_end_session_detects_new_commit(tmp_path) -> None:
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repo = tmp_path / "repo"
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repo.mkdir()
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subprocess.run(["git", "init", "-q"], cwd=repo, check=True)
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subprocess.run(["git", "commit", "-q", "--allow-empty", "-m", "init"], cwd=repo, check=True)
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rein = ReinOpenWeights()
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from glas_harness.reins._shared import git_head
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head_before = git_head(str(repo))
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subprocess.run(["git", "commit", "-q", "--allow-empty", "-m", "task"], cwd=repo, check=True)
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summary = rein.end_session({"target_repo": str(repo), "head_before": head_before})
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assert summary["committed"] == "True"
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assert summary["commit_sha"] != head_before
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