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bot-bottle/tests/unit/test_backend_skip_guards.py
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didericis-claude d4d45f835e
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ci: reuse backend.has_backend / backend status for readiness
Review feedback: the hand-rolled `/dev/kvm` + docker-daemon capability
probes duplicated logic the CLI already owns. Delegate instead.

- tests/_backend.py skip guards now gate on `bot_bottle.backend.has_backend`
  (each backend's `is_available()` classmethod — the same probe behind
  `./cli.py backend status`), dropping the bespoke `Capability` probes.
- Remove tests/backend_preflight.py; the docker integration job runs
  `./cli.py backend status --backend=docker` as its preflight (clear
  per-check summary, non-zero exit when unready), matching the firecracker
  job. The firecracker preflight reverts to its original binary/KVM checks
  (backend status doesn't cover those).
- Unit test + docs updated to match.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-24 01:42:04 +00:00

79 lines
3.0 KiB
Python

"""Tests for the backend-aware skip guards in ``tests/_backend.py``.
The guards delegate their readiness check to
``bot_bottle.backend.has_backend`` (the probe behind ``./cli.py backend
status``); here that probe is mocked so the unit job asserts the
selection/skip logic without either backend present on the runner.
"""
from __future__ import annotations
import os
import unittest
from unittest.mock import patch
from tests._backend import (
selected_backend,
skip_unless_backend,
skip_unless_selected_backend_available,
)
def _skipped(decorated: type) -> bool:
return getattr(decorated, "__unittest_skip__", False)
def _new_case() -> type:
return type("Case", (unittest.TestCase,), {})
class TestSelectedBackend(unittest.TestCase):
def test_defaults_to_docker_when_unset(self):
with patch.dict(os.environ, {}, clear=True):
self.assertEqual("docker", selected_backend())
def test_reads_env(self):
with patch.dict(os.environ, {"BOT_BOTTLE_BACKEND": "firecracker"}, clear=True):
self.assertEqual("firecracker", selected_backend())
class TestSkipUnlessBackend(unittest.TestCase):
def test_skips_when_other_backend_selected(self):
# A different backend is selected — no host probe needed, skip.
with patch.dict(os.environ, {"BOT_BOTTLE_BACKEND": "firecracker"}, clear=True), \
patch("tests._backend.has_backend") as has:
decorated = skip_unless_backend("docker")(_new_case())
self.assertTrue(_skipped(decorated))
has.assert_not_called()
def test_runs_when_selected_and_available(self):
with patch.dict(os.environ, {"BOT_BOTTLE_BACKEND": "docker"}, clear=True), \
patch("tests._backend.has_backend", return_value=True):
decorated = skip_unless_backend("docker")(_new_case())
self.assertFalse(_skipped(decorated))
def test_skips_when_selected_but_unavailable(self):
with patch.dict(os.environ, {"BOT_BOTTLE_BACKEND": "docker"}, clear=True), \
patch("tests._backend.has_backend", return_value=False):
decorated = skip_unless_backend("docker")(_new_case())
self.assertTrue(_skipped(decorated))
class TestSkipUnlessSelectedBackendAvailable(unittest.TestCase):
def test_runs_when_selected_backend_available(self):
with patch.dict(os.environ, {"BOT_BOTTLE_BACKEND": "firecracker"}, clear=True), \
patch("tests._backend.has_backend", return_value=True) as has:
decorated = skip_unless_selected_backend_available()(_new_case())
self.assertFalse(_skipped(decorated))
has.assert_called_once_with("firecracker")
def test_skips_when_selected_backend_unavailable(self):
with patch.dict(os.environ, {"BOT_BOTTLE_BACKEND": "firecracker"}, clear=True), \
patch("tests._backend.has_backend", return_value=False):
decorated = skip_unless_selected_backend_available()(_new_case())
self.assertTrue(_skipped(decorated))
if __name__ == "__main__":
unittest.main()