hermes-agent/tests/test_windows_subprocess_no_window_flags.py

from __future__ import annotations

import subprocess
from pathlib import Path
from types import SimpleNamespace


_CREATE_NO_WINDOW = 0x08000000


class _Completed:
    def __init__(self, stdout: str | bytes = "ok\n", returncode: int = 0):
        self.stdout = stdout
        self.stderr = ""
        self.returncode = returncode


def _spawns(captured, *needles):
    """Captured ``subprocess.run`` calls whose argv contains every needle.

    These tests patch ``<module>.subprocess.run``, which is the shared
    ``subprocess`` module singleton — so the patch is process-wide. Importing
    ``tui_gateway.server`` kicks off ``prefetch_update_check`` (a daemon thread
    that shells out to ``git ... origin`` with ``text=True, timeout=5``), and
    that call can land in ``captured`` mid-test. Matching the distinctive argv
    tokens of the call under test (e.g. ``--show-toplevel``, ``ls-files``) keeps
    each assertion scoped to its own contract and immune to that cross-talk —
    otherwise a stray ``git`` spawn trips a bare ``KeyError: 'creationflags'``
    or a call-count / full-list mismatch.
    """
    return [
        (cmd, kwargs)
        for cmd, kwargs in captured
        if cmd and all(n in cmd for n in needles)
    ]


def _is_git_spawn(cmd) -> bool:
    """True only for a ``git -C <cwd> ...`` spawn.

    ``bounded_git_probe`` lives in ``hermes_cli._subprocess_compat`` and both
    probe call sites delegate to it, so these tests patch
    ``_subprocess_compat.subprocess.Popen`` — which is the shared ``subprocess``
    module singleton, i.e. a process-wide patch. Any unrelated daemon spawn
    (e.g. an import-time update-check thread) must stay benign and out of the
    recorded spawns, mirroring the ``_spawns`` scoping the other tests use.
    """
    return bool(cmd) and cmd[:2] == ["git", "-C"]


def _make_fake_popen(spawns, *, stdout="ok\n", returncode=0):
    """Fast-path Popen stand-in: git returns within the budget."""

    class _FakePopen:
        def __init__(self, cmd, **kwargs):
            if _is_git_spawn(cmd):
                spawns.append((cmd, kwargs))
            self.returncode = returncode

        def communicate(self, timeout=None):
            return (stdout, "")

        def kill(self):  # pragma: no cover - never reached on the fast path
            raise AssertionError("kill() must not run when git returns in time")

    return _FakePopen


def test_bounded_git_probe_fast_path_spawn_contract_windows(monkeypatch):
    """The normal-path spawn contract survives the run()->Popen rewrite:
    PIPE/PIPE/DEVNULL, text + utf-8/replace, hidden-window flags on Windows."""
    from hermes_cli import _subprocess_compat

    spawns = []
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _make_fake_popen(spawns, stdout="main\n"))

    out = _subprocess_compat.bounded_git_probe(
        ["git", "-C", "C:/repo", "branch", "--show-current"], timeout=1.5
    )
    assert out == "main"
    assert len(spawns) == 1, spawns
    cmd, kwargs = spawns[0]
    assert cmd == ["git", "-C", "C:/repo", "branch", "--show-current"]
    assert kwargs["stdout"] == subprocess.PIPE
    assert kwargs["stderr"] == subprocess.PIPE
    assert kwargs["stdin"] == subprocess.DEVNULL
    assert kwargs["text"] is True
    assert kwargs["encoding"] == "utf-8"
    assert kwargs["errors"] == "replace"
    assert kwargs["creationflags"] == _CREATE_NO_WINDOW


def test_bounded_git_probe_no_hide_flags_off_windows(monkeypatch):
    from hermes_cli import _subprocess_compat

    spawns = []
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", False)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _make_fake_popen(spawns, stdout="main\n"))

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "/repo", "status"], timeout=1.5) == "main"
    assert len(spawns) == 1, spawns
    assert "creationflags" not in spawns[0][1]


def test_bounded_git_probe_nonzero_returncode_returns_empty(monkeypatch):
    from hermes_cli import _subprocess_compat

    spawns = []
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", False)
    monkeypatch.setattr(
        _subprocess_compat.subprocess,
        "Popen",
        _make_fake_popen(spawns, stdout="garbage-should-not-leak\n", returncode=1),
    )

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "/repo", "status"], timeout=1.5) == ""


def test_bounded_git_probe_timeout_kills_and_returns_empty(monkeypatch):
    """A hung git is killed and cleaned up with a *bounded* second
    communicate(), and the probe returns "" — never subprocess.run()'s
    unbounded post-kill reader-thread join, which on Windows deadlocks when a
    suspended descendant git.exe retains the captured handles and blocks Desktop
    agent initialization behind it (issues #68609 / #66037)."""
    from hermes_cli import _subprocess_compat

    events = []

    class _HangingPopen:
        def __init__(self, cmd, **kwargs):
            self._probe = _is_git_spawn(cmd)
            self.returncode = None
            self.pid = 4242

        def communicate(self, timeout=None):
            if not self._probe:
                return ("", "")
            events.append(f"comm:{timeout}")
            if timeout != 1:
                raise subprocess.TimeoutExpired(cmd="git", timeout=timeout)
            return ("", "")  # bounded post-kill drain succeeds

        def kill(self):
            if self._probe:
                events.append("kill")

    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", False)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _HangingPopen)

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "/repo", "status"], timeout=1.5) == ""
    assert events == ["comm:1.5", "kill", "comm:1"]


def test_bounded_git_probe_timeout_tree_kills_on_windows(monkeypatch):
    """On Windows the timeout path must escalate past ``proc.kill()`` to
    ``taskkill /T /F`` so the suspended descendant git.exe holding the pipe
    writers dies too — otherwise the bounded drain can't reach EOF and the
    process + reader threads leak per fired timeout (the #68609 leak)."""
    from hermes_cli import _subprocess_compat

    taskkills = []

    class _HangingPopen:
        def __init__(self, cmd, **kwargs):
            self._probe = _is_git_spawn(cmd)
            self.returncode = None
            self.pid = 4242

        def communicate(self, timeout=None):
            if self._probe and timeout != 1:
                raise subprocess.TimeoutExpired(cmd="git", timeout=timeout)
            return ("", "")

        def kill(self):
            pass

    def fake_run(cmd, **kwargs):
        taskkills.append((cmd, kwargs))
        return _Completed()

    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _HangingPopen)
    monkeypatch.setattr(_subprocess_compat.subprocess, "run", fake_run)

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "C:/repo", "status"], timeout=1.5) == ""
    kills = [c for c, _ in taskkills if c and c[0] == "taskkill"]
    assert kills == [["taskkill", "/T", "/F", "/PID", "4242"]], taskkills
    assert taskkills[0][1].get("creationflags") == _CREATE_NO_WINDOW


def test_bounded_git_probe_kill_failure_still_fails_open(monkeypatch):
    """kill() raising (access denied, already-reaped) must not escape — the
    contract is "" on ANY failure. A raise inside the except handler would
    otherwise propagate."""
    from hermes_cli import _subprocess_compat

    class _UnkillablePopen:
        def __init__(self, cmd, **kwargs):
            self._probe = _is_git_spawn(cmd)
            self.returncode = None
            self.pid = 4242

        def communicate(self, timeout=None):
            if self._probe and timeout != 1:
                raise subprocess.TimeoutExpired(cmd="git", timeout=timeout)
            return ("", "")

        def kill(self):
            if self._probe:
                raise OSError("access denied")

    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", False)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _UnkillablePopen)

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "/repo", "status"], timeout=1.5) == ""


def test_bounded_git_probe_nontimeout_failure_kills_child(monkeypatch):
    """A non-timeout communicate() failure (torn-down pipe, decode error) must
    still terminate the child and fail open, not leave it running."""
    from hermes_cli import _subprocess_compat

    events = []

    class _BrokenPipePopen:
        def __init__(self, cmd, **kwargs):
            self._probe = _is_git_spawn(cmd)
            self.returncode = None
            self.pid = 4242

        def communicate(self, timeout=None):
            if not self._probe:
                return ("", "")
            if timeout != 1:
                raise ValueError("I/O operation on closed file")
            events.append("drain")
            return ("", "")

        def kill(self):
            if self._probe:
                events.append("kill")

    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", False)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _BrokenPipePopen)

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "/repo", "status"], timeout=1.5) == ""
    assert events == ["kill", "drain"]


def test_bounded_git_probe_cleanup_failure_is_swallowed(monkeypatch):
    """If the bounded post-kill drain itself still times out (descendant keeps
    the handles), the probe abandons the pipes and honours the ""-on-failure
    contract instead of hanging."""
    from hermes_cli import _subprocess_compat

    class _StuckPopen:
        def __init__(self, cmd, **kwargs):
            self._probe = _is_git_spawn(cmd)
            self.returncode = None
            self.pid = 4242

        def communicate(self, timeout=None):
            if self._probe:
                raise subprocess.TimeoutExpired(cmd="git", timeout=timeout or 0)
            return ("", "")

        def kill(self):
            pass

    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", False)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _StuckPopen)

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "/repo", "status"], timeout=1.5) == ""


def test_bounded_git_probe_spawn_failure_returns_empty(monkeypatch):
    """A spawn failure (git not on PATH) fails open to ""."""
    from hermes_cli import _subprocess_compat

    def boom(cmd, **kwargs):
        raise FileNotFoundError("git not found")

    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", False)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", boom)

    assert _subprocess_compat.bounded_git_probe(["git", "-C", "/repo", "status"], timeout=1.5) == ""


def test_tui_gateway_git_probe_delegates_to_bounded_probe(monkeypatch):
    """run_git wires cwd/args through the shared bounded helper (hidden-window
    flags reach the spawn on Windows) and preserves its own timeout."""
    from tui_gateway import git_probe
    from hermes_cli import _subprocess_compat

    spawns = []
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _make_fake_popen(spawns, stdout="main\n"))

    assert git_probe.run_git("C:/repo", "branch", "--show-current") == "main"
    assert len(spawns) == 1, spawns
    cmd, kwargs = spawns[0]
    assert cmd == ["git", "-C", "C:/repo", "branch", "--show-current"]
    assert kwargs["creationflags"] == _CREATE_NO_WINDOW
    assert kwargs["stdin"] == subprocess.DEVNULL


def test_tui_gateway_git_probe_empty_cwd_short_circuits(monkeypatch):
    """run_git returns "" for a falsy cwd without spawning git."""
    from tui_gateway import git_probe
    from hermes_cli import _subprocess_compat

    def boom(*a, **k):  # pragma: no cover - must not be called
        raise AssertionError("git must not spawn for an empty cwd")

    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", boom)
    assert git_probe.run_git("", "branch", "--show-current") == ""


def test_tui_gateway_fuzzy_file_listing_hides_git_windows(monkeypatch):
    from hermes_cli import _subprocess_compat
    from tui_gateway import server

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        if cmd[-1] == "--show-toplevel":
            return _Completed(stdout=b"C:/repo\n")
        return _Completed(stdout=b"src/main.py\0README.md\0")

    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(server.subprocess, "run", fake_run)
    server._fuzzy_cache.clear()

    assert server._list_repo_files("C:/repo") == ["src/main.py", "README.md"]

    toplevel = _spawns(captured, "rev-parse", "--show-toplevel")
    ls_files = _spawns(captured, "ls-files")
    assert len(toplevel) == 1 and len(ls_files) == 1, captured
    assert toplevel[0][1].get("creationflags") == _CREATE_NO_WINDOW
    assert ls_files[0][1].get("creationflags") == _CREATE_NO_WINDOW


def test_coding_context_git_delegates_to_bounded_probe(monkeypatch):
    """_git wires cwd/args through the shared bounded helper (hidden-window flags
    reach the spawn on Windows), stringifying the Path cwd."""
    from agent import coding_context
    from hermes_cli import _subprocess_compat

    spawns = []
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(_subprocess_compat.subprocess, "Popen", _make_fake_popen(spawns, stdout="clean\n"))

    assert coding_context._git(Path("C:/repo"), "status", "--short") == "clean"
    assert len(spawns) == 1, spawns
    cmd, kwargs = spawns[0]
    assert cmd == ["git", "-C", str(Path("C:/repo")), "status", "--short"]
    assert kwargs["creationflags"] == _CREATE_NO_WINDOW
    assert kwargs["stdin"] == subprocess.DEVNULL


def test_context_reference_git_and_rg_hide_windows(monkeypatch):
    from agent import context_references

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        if cmd[0] == "rg":
            return _Completed(stdout="src/main.py\n")
        return _Completed(stdout="diff --git a/src/main.py b/src/main.py\n")

    monkeypatch.setattr(context_references, "IS_WINDOWS", True)
    monkeypatch.setattr(context_references, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(context_references.subprocess, "run", fake_run)

    ref = context_references.ContextReference(
        raw="@diff",
        kind="diff",
        target="",
        start=0,
        end=5,
    )
    warning, block = context_references._expand_git_reference(
        ref,
        Path("C:/repo"),
        ["diff"],
        "git diff",
    )
    assert warning is None
    assert block is not None
    assert "git diff" in block
    assert context_references._rg_files(Path("C:/repo/src"), Path("C:/repo"), 10) == [
        Path("src/main.py")
    ]

    git_calls = _spawns(captured, "diff")
    rg_calls = _spawns(captured, "rg")
    assert len(git_calls) == 1 and len(rg_calls) == 1, captured
    assert git_calls[0][1].get("creationflags") == _CREATE_NO_WINDOW
    assert rg_calls[0][1].get("creationflags") == _CREATE_NO_WINDOW


def test_copilot_gh_cli_probe_hides_gh_windows(monkeypatch):
    from hermes_cli import copilot_auth

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Completed(stdout="gho_from_cli\n")

    monkeypatch.setattr(copilot_auth, "IS_WINDOWS", True)
    monkeypatch.setattr(copilot_auth, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(copilot_auth, "_gh_cli_candidates", lambda: ["gh"])
    monkeypatch.setattr(copilot_auth.subprocess, "run", fake_run)

    assert copilot_auth._try_gh_cli_token() == "gho_from_cli"
    assert captured[0][0] == ["gh", "auth", "token"]
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW


def test_gateway_pid_scan_hides_wmic_and_powershell_windows(monkeypatch):
    from hermes_cli import gateway
    from hermes_cli import _subprocess_compat

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        if cmd[0] == "wmic":
            return _Completed(stdout="", returncode=1)
        return _Completed(stdout="CommandLine=hermes gateway\nProcessId=123\n")

    monkeypatch.setattr(gateway, "is_windows", lambda: True)
    monkeypatch.setattr(gateway.shutil, "which", lambda name: name)
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(gateway.subprocess, "run", fake_run)

    assert gateway._scan_gateway_pids(set()) == [123]
    # The wmic probe and the PowerShell fallback are the two console spawns
    # this scan makes on Windows; both must hide the window via
    # ``creationflags``. Filter to those two commands (rather than indexing a
    # positional list) so the contract — "every Windows pid-scan spawn is
    # windowless" — is asserted directly and can't be tripped by an unrelated
    # captured call leaking in from prior module-state churn in the same
    # process. ``.get`` keeps a stray non-windowed call from masking the real
    # assertion behind a bare KeyError.
    scan_spawns = [
        kwargs
        for cmd, kwargs in captured
        if cmd and cmd[0] in {"wmic", "powershell", "pwsh"}
    ]
    assert len(scan_spawns) == 2, captured
    assert [kwargs.get("creationflags") for kwargs in scan_spawns] == [
        _CREATE_NO_WINDOW,
        _CREATE_NO_WINDOW,
    ]


def test_stale_dashboard_windows_scan_hides_wmic(monkeypatch):
    from hermes_cli import main
    from hermes_cli import _subprocess_compat

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Completed(stdout="CommandLine=hermes dashboard\nProcessId=123\n")

    monkeypatch.setattr(main.sys, "platform", "win32")
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(main.subprocess, "run", fake_run)

    assert main._find_stale_dashboard_pids() == [123]
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW


def test_gateway_force_kill_hides_taskkill_window(monkeypatch):
    from gateway import status
    from hermes_cli import _subprocess_compat

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Completed(stdout="")

    monkeypatch.setattr(status, "_IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "IS_WINDOWS", True)
    monkeypatch.setattr(_subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(status.subprocess, "run", fake_run)

    status.terminate_pid(123, force=True)

    kill_calls = _spawns(captured, "taskkill")
    assert kill_calls == [
        (
            ["taskkill", "/PID", "123", "/T", "/F"],
            {
                "capture_output": True,
                "text": True,
                "timeout": 10,
                "creationflags": _CREATE_NO_WINDOW,
            },
        )
    ]


def test_shell_hooks_hide_hook_command_windows(monkeypatch):
    from agent import shell_hooks

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return SimpleNamespace(returncode=0, stdout="{}", stderr="")

    monkeypatch.setattr(shell_hooks, "IS_WINDOWS", True)
    monkeypatch.setattr(shell_hooks, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(shell_hooks.subprocess, "run", fake_run)

    result = shell_hooks._spawn(
        shell_hooks.ShellHookSpec(event="post_tool_call", command="hook-bin --flag"),
        "{}",
    )

    assert result["returncode"] == 0
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW


def test_inline_skill_shell_hides_bash_window(monkeypatch):
    from agent import skill_preprocessing

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return SimpleNamespace(returncode=0, stdout="ok\n", stderr="")

    monkeypatch.setattr(skill_preprocessing, "IS_WINDOWS", True)
    monkeypatch.setattr(skill_preprocessing, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(skill_preprocessing.subprocess, "run", fake_run)

    assert skill_preprocessing.run_inline_shell("echo ok", cwd=None, timeout=5) == "ok"
    assert captured[0][0] == ["bash", "-c", "echo ok"]
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW


def test_tts_opus_conversion_hides_ffmpeg_window(monkeypatch, tmp_path):
    from tools import tts_tool

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Completed(returncode=0)

    monkeypatch.setattr(tts_tool, "_has_ffmpeg", lambda: True)
    monkeypatch.setattr(tts_tool, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(tts_tool.subprocess, "run", fake_run)

    tts_tool._convert_to_opus(str(tmp_path / "v.mp3"))

    assert captured[0][0][0] == "ffmpeg"
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW


def test_local_stt_audio_prep_hides_ffmpeg_window(monkeypatch, tmp_path):
    from tools import transcription_tools

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Completed(returncode=0)

    monkeypatch.setattr(transcription_tools, "_find_ffmpeg_binary", lambda: "ffmpeg")
    monkeypatch.setattr(transcription_tools, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(transcription_tools.subprocess, "run", fake_run)

    transcription_tools._prepare_local_audio(str(tmp_path / "in.m4a"), str(tmp_path))

    assert captured[0][0][0] == "ffmpeg"
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW

def test_checkpoint_manager_git_hides_windows(monkeypatch):
    from tools import checkpoint_manager

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Completed(stdout="clean\n")

    monkeypatch.setattr(checkpoint_manager, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(checkpoint_manager.subprocess, "run", fake_run)

    ok, _, _ = checkpoint_manager._run_git(["status", "--short"], Path("C:/store"), ".")
    assert ok
    assert captured[0][0][0] == "git"
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW


def test_skills_hub_gh_token_hides_windows(monkeypatch):
    from tools import skills_hub

    captured = []

    def fake_run(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Completed(stdout="gho_from_cli\n")

    monkeypatch.setattr(skills_hub, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)
    monkeypatch.setattr(skills_hub.subprocess, "run", fake_run)

    auth = skills_hub.GitHubAuth.__new__(skills_hub.GitHubAuth)
    assert auth._try_gh_cli() == "gho_from_cli"
    assert captured[0][0] == ["gh", "auth", "token"]
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW


def test_tui_slash_worker_hides_python_window(monkeypatch):
    from tui_gateway import server

    captured = []

    class _Proc:
        stdin = SimpleNamespace()
        stdout = []
        stderr = []

    def fake_popen(cmd, **kwargs):
        captured.append((cmd, kwargs))
        return _Proc()

    monkeypatch.setattr(server.subprocess, "Popen", fake_popen)
    monkeypatch.setattr(server.threading, "Thread", lambda *a, **k: SimpleNamespace(start=lambda: None))

    import hermes_cli._subprocess_compat as subprocess_compat

    monkeypatch.setattr(subprocess_compat, "windows_hide_flags", lambda: _CREATE_NO_WINDOW)

    server._SlashWorker("session-key", "model-x")

    assert captured[0][0][:3] == [server.sys.executable, "-m", "tui_gateway.slash_worker"]
    assert captured[0][1]["creationflags"] == _CREATE_NO_WINDOW