wehub-resource-sync
353 lines
13 KiB
Python
353 lines
13 KiB
Python
import io
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import importlib.util
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import os
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import shutil
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import stat
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import subprocess
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import sys
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import tempfile
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import unittest
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from pathlib import Path
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from unittest import mock
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PLUGIN_PATH = Path(__file__).resolve().parents[1] / "rtk-rewrite" / "__init__.py"
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class FakeContext:
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def __init__(self):
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self.hooks = {}
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def register_hook(self, hook_name, callback):
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self.hooks[hook_name] = callback
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class FakeCompletedProcess:
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def __init__(self, returncode=0, stdout="", stderr=""):
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self.returncode = returncode
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self.stdout = stdout
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self.stderr = stderr
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def load_plugin_module(path=PLUGIN_PATH, module_name="rtk_rewrite_plugin"):
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spec = importlib.util.spec_from_file_location(module_name, path)
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if spec is None or spec.loader is None:
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raise ImportError(f"Unable to load Hermes plugin from {path}")
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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return module
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def write_fake_rtk(bin_dir):
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fake_rtk = bin_dir / "rtk"
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fake_rtk.write_text(
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"\n".join(
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[
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f"#!{sys.executable}",
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"import sys",
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"if sys.argv[1:] == ['rewrite', 'git status']:",
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" print('rtk git status')",
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" raise SystemExit(0)",
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"print('unexpected rtk args:', sys.argv[1:], file=sys.stderr)",
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"raise SystemExit(1)",
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"",
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]
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)
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)
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fake_rtk.chmod(fake_rtk.stat().st_mode | stat.S_IXUSR)
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return fake_rtk
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class RtkRewritePluginTest(unittest.TestCase):
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def load_callback(self):
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module = load_plugin_module()
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module._rtk_available = None
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module._rtk_missing_warned = False
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ctx = FakeContext()
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with mock.patch.object(module.shutil, "which", return_value="/usr/bin/rtk"):
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module.register(ctx)
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self.assertIn("pre_tool_call", ctx.hooks)
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return module, ctx.hooks["pre_tool_call"]
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def test_missing_rtk_skips_registering_pre_tool_call(self):
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module = load_plugin_module()
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module._rtk_available = None
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module._rtk_missing_warned = False
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ctx = FakeContext()
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with mock.patch.object(module.shutil, "which", return_value=None):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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module.register(ctx)
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self.assertNotIn("pre_tool_call", ctx.hooks)
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self.assertEqual(
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"rtk: hermes plugin warning: rtk binary not found in PATH; Hermes hook not registered\n",
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stderr.getvalue(),
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)
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def test_missing_rtk_warns_only_once(self):
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module = load_plugin_module()
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module._rtk_available = None
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module._rtk_missing_warned = False
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with mock.patch.object(module.shutil, "which", return_value=None):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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self.assertFalse(module._check_rtk())
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self.assertFalse(module._check_rtk())
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self.assertEqual(
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"rtk: hermes plugin warning: rtk binary not found in PATH; Hermes hook not registered\n",
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stderr.getvalue(),
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)
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def test_check_rtk_found_is_quiet(self):
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module = load_plugin_module()
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module._rtk_available = None
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module._rtk_missing_warned = False
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with mock.patch.object(module.shutil, "which", return_value="/usr/bin/rtk"):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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self.assertTrue(module._check_rtk())
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self.assertEqual("", stderr.getvalue())
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def test_check_rtk_caches_result_across_calls(self):
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module = load_plugin_module()
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module._rtk_available = None
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module._rtk_missing_warned = False
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with mock.patch.object(module.shutil, "which", return_value="/usr/bin/rtk") as which:
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self.assertTrue(module._check_rtk())
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self.assertTrue(module._check_rtk())
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which.assert_called_once_with("rtk")
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def test_rewrite_success_mutates_same_terminal_args_dict(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(
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module.subprocess,
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"run",
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return_value=FakeCompletedProcess(stdout="rtk git status\n"),
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):
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "rtk git status"}, args)
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def test_rewrite_returncode_three_mutates_same_terminal_args_dict(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(
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module.subprocess,
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"run",
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return_value=FakeCompletedProcess(returncode=3, stdout="rtk git status\n"),
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):
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "rtk git status"}, args)
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def test_rewrite_returncode_zero_mutates_when_rewrite_changes_command(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(
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module.subprocess,
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"run",
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return_value=FakeCompletedProcess(stdout="rtk git status\n"),
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):
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "rtk git status"}, args)
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def test_expected_passthrough_returncodes_do_not_warn_or_mutate(self):
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for returncode in (1, 2):
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with self.subTest(returncode=returncode):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(
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module.subprocess,
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"run",
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return_value=FakeCompletedProcess(
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returncode=returncode,
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stdout="rtk git status\n",
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stderr="unexpected stderr",
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),
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):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "git status"}, args)
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self.assertEqual("", stderr.getvalue())
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def test_unexpected_returncode_warns_with_stderr_details(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(
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module.subprocess,
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"run",
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return_value=FakeCompletedProcess(returncode=4, stdout="rtk git status\n", stderr="bad news"),
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):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "git status"}, args)
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self.assertEqual("rtk: hermes plugin warning: rtk rewrite failed with exit 4: bad news\n", stderr.getvalue())
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def test_rewrite_timeout_warns_and_preserves_original_command(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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timeout = subprocess.TimeoutExpired(cmd=["rtk", "rewrite", "git status"], timeout=2)
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with mock.patch.object(module.subprocess, "run", side_effect=timeout):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "git status"}, args)
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self.assertEqual("rtk: hermes plugin warning: rtk rewrite timed out\n", stderr.getvalue())
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def test_file_not_found_preserves_original_command(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(module.subprocess, "run", side_effect=FileNotFoundError):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "git status"}, args)
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self.assertIn("rtk: hermes plugin warning:", stderr.getvalue())
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def test_unexpected_exception_prints_warning_and_keeps_command(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(module.subprocess, "run", side_effect=RuntimeError("boom")):
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with mock.patch.object(module.sys, "stderr", new_callable=io.StringIO) as stderr:
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "git status"}, args)
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self.assertEqual("rtk: hermes plugin warning: boom\n", stderr.getvalue())
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def test_non_terminal_tool_is_noop(self):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(module.subprocess, "run") as run:
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callback(tool_name="read_file", args=args)
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run.assert_not_called()
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self.assertEqual({"command": "git status"}, args)
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def test_missing_command_is_noop(self):
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module, callback = self.load_callback()
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args = {}
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with mock.patch.object(module.subprocess, "run") as run:
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callback(tool_name="terminal", args=args)
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run.assert_not_called()
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self.assertEqual({}, args)
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def test_non_string_command_is_noop(self):
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module, callback = self.load_callback()
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args = {"command": ["git", "status"]}
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with mock.patch.object(module.subprocess, "run") as run:
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callback(tool_name="terminal", args=args)
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run.assert_not_called()
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self.assertEqual({"command": ["git", "status"]}, args)
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def test_empty_command_strings_are_noop(self):
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for command in ("", " ", "\t\n"):
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with self.subTest(command=command):
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module, callback = self.load_callback()
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args = {"command": command}
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with mock.patch.object(module.subprocess, "run") as run:
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callback(tool_name="terminal", args=args)
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run.assert_not_called()
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self.assertEqual({"command": command}, args)
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def test_empty_or_unchanged_rewrite_output_preserves_original_command(self):
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for stdout in ("", "\n", "git status\n"):
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with self.subTest(stdout=stdout):
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module, callback = self.load_callback()
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args = {"command": "git status"}
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with mock.patch.object(
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module.subprocess,
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"run",
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return_value=FakeCompletedProcess(stdout=stdout),
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):
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "git status"}, args)
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class InstalledRtkRewritePluginTest(unittest.TestCase):
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@unittest.skipUnless(shutil.which("cargo"), "cargo is required for installed flow")
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def test_cargo_init_installs_importable_plugin_that_rewrites_with_fake_rtk(self):
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repo_root = Path(__file__).resolve().parents[3]
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self.assertTrue((repo_root / "Cargo.toml").exists(), "repo_root must point at the repository root")
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real_home = Path(os.path.expanduser("~"))
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with tempfile.TemporaryDirectory() as home, tempfile.TemporaryDirectory() as bin_dir:
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home_path = Path(home)
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fake_bin = Path(bin_dir)
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write_fake_rtk(fake_bin)
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env = os.environ.copy()
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env["HOME"] = str(home_path)
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env["PATH"] = str(fake_bin) + os.pathsep + env.get("PATH", "")
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env["RTK_TELEMETRY_DISABLED"] = "1"
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env["CARGO_TERM_COLOR"] = "never"
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env.setdefault("RUSTUP_TOOLCHAIN", "stable")
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if "RUSTUP_HOME" not in env and (real_home / ".rustup").exists():
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env["RUSTUP_HOME"] = str(real_home / ".rustup")
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if "CARGO_HOME" not in env and (real_home / ".cargo").exists():
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env["CARGO_HOME"] = str(real_home / ".cargo")
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env.pop("CLAUDE_CONFIG_DIR", None)
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result = subprocess.run(
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["cargo", "run", "--quiet", "--", "init", "--agent", "hermes"],
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cwd=repo_root,
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env=env,
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capture_output=True,
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text=True,
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timeout=300,
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)
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self.assertEqual(
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0,
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result.returncode,
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msg=f"stdout:\n{result.stdout}\nstderr:\n{result.stderr}",
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)
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plugin_dir = home_path / ".hermes" / "plugins" / "rtk-rewrite"
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init_path = plugin_dir / "__init__.py"
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manifest_path = plugin_dir / "plugin.yaml"
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self.assertTrue(init_path.exists(), "installed plugin __init__.py must exist")
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self.assertTrue(manifest_path.exists(), "installed plugin.yaml must exist")
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module = load_plugin_module(init_path, "installed_rtk_rewrite_plugin")
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ctx = FakeContext()
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with mock.patch.dict(os.environ, {"PATH": env["PATH"]}):
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module.register(ctx)
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callback = ctx.hooks["pre_tool_call"]
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args = {"command": "git status"}
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callback(tool_name="terminal", args=args)
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self.assertEqual({"command": "rtk git status"}, args)
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if __name__ == "__main__":
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unittest.main()
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