Files
esphome/tests/script/test_setup.py
T

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19 KiB
Python

"""Tests for script/setup.py."""
import importlib.util
import os
from pathlib import Path, PurePosixPath, PureWindowsPath
import runpy
import sys
from types import ModuleType
from unittest.mock import Mock, call, patch
import pytest
_SCRIPT = Path(__file__).parents[2] / "script" / "setup.py"
def _load_module() -> ModuleType:
spec = importlib.util.spec_from_file_location("script_setup", _SCRIPT)
module = importlib.util.module_from_spec(spec)
spec.loader.exec_module(module)
return module
@pytest.fixture
def script_setup() -> ModuleType:
"""Fresh import of script/setup.py, isolated from other tests."""
return _load_module()
# --- bin_dir / venv_python / activate_hint -----------------------------------
def test_bin_dir_matches_host_layout(script_setup: ModuleType, tmp_path: Path) -> None:
"""The venv scheme resolves to Scripts on Windows and bin everywhere else."""
expected = "Scripts" if os.name == "nt" else "bin"
assert script_setup.bin_dir(tmp_path) == tmp_path / expected
# Both flavours are exercised on every host. Pure paths are used because a real
# Path refuses to change flavour: PosixPath cannot be built on Windows, and
# WindowsPath cannot be built on Unix.
def test_venv_python_posix(script_setup: ModuleType, tmp_path: Path) -> None:
with (
patch.object(
script_setup, "bin_dir", return_value=PurePosixPath("/x/venv/bin")
),
patch.object(script_setup.os, "name", "posix"),
):
result = script_setup.venv_python(tmp_path)
assert result == PurePosixPath("/x/venv/bin/python")
def test_venv_python_nt(script_setup: ModuleType, tmp_path: Path) -> None:
with (
patch.object(
script_setup, "bin_dir", return_value=PureWindowsPath(r"C:\x\venv\Scripts")
),
patch.object(script_setup.os, "name", "nt"),
):
result = script_setup.venv_python(tmp_path)
assert result == PureWindowsPath(r"C:\x\venv\Scripts\python.exe")
def test_activate_hint_posix(script_setup: ModuleType) -> None:
with (
patch.object(script_setup, "ROOT", PurePosixPath("/x")),
patch.object(
script_setup, "bin_dir", return_value=PurePosixPath("/x/venv/bin")
),
patch.object(script_setup.os, "name", "posix"),
):
hint = script_setup.activate_hint()
assert hint == "source venv/bin/activate"
def test_activate_hint_nt(script_setup: ModuleType) -> None:
with (
patch.object(script_setup, "ROOT", PureWindowsPath(r"C:\x")),
patch.object(
script_setup, "bin_dir", return_value=PureWindowsPath(r"C:\x\venv\Scripts")
),
patch.object(script_setup.os, "name", "nt"),
):
hint = script_setup.activate_hint()
# The nt branch returns str(activate) as-is, skipping the "source " prefix.
assert hint == r"venv\Scripts\activate"
# --- run -----------------------------------------------------------------
def test_run_success(script_setup: ModuleType) -> None:
with patch.object(
script_setup.subprocess, "run", return_value=Mock(returncode=0)
) as mock_run:
script_setup.run(["echo", "hi"])
mock_run.assert_called_once_with(
["echo", "hi"], cwd=script_setup.ROOT, env=None, check=False
)
def test_run_failure_raises_system_exit_with_code(
script_setup: ModuleType, capsys: pytest.CaptureFixture[str]
) -> None:
with (
patch.object(script_setup.subprocess, "run", return_value=Mock(returncode=7)),
pytest.raises(SystemExit) as excinfo,
):
script_setup.run(["false"])
assert excinfo.value.code == 7
assert "Failed with exit code 7: false" in capsys.readouterr().err
# --- git_output ------------------------------------------------------------
def test_git_output_success_strips_stdout(script_setup: ModuleType) -> None:
with patch.object(
script_setup.subprocess,
"run",
return_value=Mock(returncode=0, stdout=" /repo/.git \n"),
) as mock_run:
result = script_setup.git_output("rev-parse", "--absolute-git-dir")
assert result == "/repo/.git"
mock_run.assert_called_once_with(
["git", "rev-parse", "--absolute-git-dir"],
cwd=script_setup.ROOT,
capture_output=True,
text=True,
check=False,
)
def test_git_output_nonzero_returncode_is_empty(script_setup: ModuleType) -> None:
with patch.object(
script_setup.subprocess,
"run",
return_value=Mock(returncode=1, stdout="whatever"),
):
assert script_setup.git_output("status") == ""
def test_git_output_oserror_is_empty(script_setup: ModuleType) -> None:
with patch.object(script_setup.subprocess, "run", side_effect=OSError("no git")):
assert script_setup.git_output("status") == ""
# --- create_venv -----------------------------------------------------------
def test_create_venv_uses_uv_when_present(
script_setup: ModuleType, tmp_path: Path
) -> None:
venv = tmp_path / "venv"
with (
patch.object(script_setup.shutil, "which", return_value="/usr/bin/uv"),
patch.object(
script_setup.subprocess, "run", return_value=Mock(returncode=0)
) as mock_run,
):
script_setup.create_venv(venv)
mock_run.assert_called_once_with(
["/usr/bin/uv", "venv", "--clear", "--seed", str(venv)],
cwd=script_setup.ROOT,
env=None,
check=False,
)
def test_create_venv_falls_back_to_venv_module(
script_setup: ModuleType, tmp_path: Path
) -> None:
venv = tmp_path / "venv"
with (
patch.object(script_setup.shutil, "which", return_value=None),
patch.object(
script_setup.subprocess, "run", return_value=Mock(returncode=0)
) as mock_run,
):
script_setup.create_venv(venv)
mock_run.assert_called_once_with(
[sys.executable, "-m", "venv", "--clear", str(venv)],
cwd=script_setup.ROOT,
env=None,
check=False,
)
# --- venv_environment --------------------------------------------------------
def test_venv_environment_sets_virtual_env_and_prepends_path(
script_setup: ModuleType, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
) -> None:
venv = tmp_path / "venv"
monkeypatch.setenv("PYTHONHOME", "/somewhere")
monkeypatch.setenv("PATH", "/usr/bin:/bin")
env = script_setup.venv_environment(venv)
assert env["VIRTUAL_ENV"] == str(venv)
assert "PYTHONHOME" not in env
expected_prefix = str(script_setup.bin_dir(venv)) + os.pathsep
assert env["PATH"] == expected_prefix + "/usr/bin:/bin"
def test_venv_environment_path_fallback_when_unset(
script_setup: ModuleType, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
) -> None:
venv = tmp_path / "venv"
monkeypatch.delenv("PATH", raising=False)
env = script_setup.venv_environment(venv)
# No trailing separator: an empty PATH entry means "search the cwd".
assert env["PATH"] == str(script_setup.bin_dir(venv))
# --- find_uv -----------------------------------------------------------------
def test_find_uv_found_immediately(script_setup: ModuleType, tmp_path: Path) -> None:
venv = tmp_path / "venv"
env = {"PATH": "/usr/bin"}
with (
patch.object(script_setup.shutil, "which", return_value="/usr/bin/uv"),
patch.object(script_setup.subprocess, "run") as mock_run,
):
result = script_setup.find_uv(venv, env)
assert result == "/usr/bin/uv"
mock_run.assert_not_called()
def test_find_uv_installed_then_found(script_setup: ModuleType, tmp_path: Path) -> None:
venv = tmp_path / "venv"
env = {"PATH": "/usr/bin"}
with (
patch.object(script_setup.shutil, "which", side_effect=[None, "/usr/bin/uv"]),
patch.object(
script_setup.subprocess, "run", return_value=Mock(returncode=0)
) as mock_run,
):
result = script_setup.find_uv(venv, env)
assert result == "/usr/bin/uv"
mock_run.assert_called_once_with(
[str(script_setup.venv_python(venv)), "-m", "pip", "install", "uv"],
cwd=script_setup.ROOT,
env=env,
check=False,
)
def test_find_uv_still_missing_raises_system_exit(
script_setup: ModuleType, tmp_path: Path
) -> None:
venv = tmp_path / "venv"
env = {"PATH": "/usr/bin"}
with (
patch.object(script_setup.shutil, "which", side_effect=[None, None]),
patch.object(script_setup.subprocess, "run", return_value=Mock(returncode=0)),
pytest.raises(SystemExit, match="uv could not be installed"),
):
script_setup.find_uv(venv, env)
# --- install_dependencies -----------------------------------------------------
def test_install_dependencies_installs_setuptools_then_project(
script_setup: ModuleType, tmp_path: Path
) -> None:
venv = tmp_path / "venv"
env = {"PATH": "/usr/bin"}
with (
patch.object(script_setup.shutil, "which", return_value="/usr/bin/uv"),
patch.object(
script_setup.subprocess, "run", return_value=Mock(returncode=0)
) as mock_run,
):
script_setup.install_dependencies(venv, env)
assert mock_run.call_args_list == [
call(
["/usr/bin/uv", "pip", "install", "setuptools", "wheel"],
cwd=script_setup.ROOT,
env=env,
check=False,
),
call(
[
"/usr/bin/uv",
"pip",
"install",
"-e",
".[dev,test]",
"--config-settings",
"editable_mode=compat",
],
cwd=script_setup.ROOT,
env=env,
check=False,
),
]
# --- install_git_hooks ---------------------------------------------------------
def _fake_git_output(git_dir: str, common_dir: str):
def _run(*args: str) -> str:
if "--absolute-git-dir" in args:
return git_dir
return common_dir
return _run
def test_install_git_hooks_returns_early_when_git_dir_empty(
script_setup: ModuleType,
) -> None:
env = {"PATH": "/usr/bin"}
with (
patch.object(
script_setup, "git_output", side_effect=_fake_git_output("", "/repo/.git")
),
patch.object(script_setup.subprocess, "run") as mock_run,
):
script_setup.install_git_hooks(env)
mock_run.assert_not_called()
def test_install_git_hooks_returns_early_when_common_dir_empty(
script_setup: ModuleType,
) -> None:
env = {"PATH": "/usr/bin"}
with (
patch.object(
script_setup, "git_output", side_effect=_fake_git_output("/repo/.git", "")
),
patch.object(script_setup.subprocess, "run") as mock_run,
):
script_setup.install_git_hooks(env)
mock_run.assert_not_called()
def test_install_git_hooks_returns_early_for_worktree(
script_setup: ModuleType,
) -> None:
"""A worktree's git-dir differs from the shared common-dir."""
env = {"PATH": "/usr/bin"}
with (
patch.object(
script_setup,
"git_output",
side_effect=_fake_git_output("/repo/.git/worktrees/wt", "/repo/.git"),
),
patch.object(script_setup.subprocess, "run") as mock_run,
):
script_setup.install_git_hooks(env)
mock_run.assert_not_called()
def test_install_git_hooks_missing_prek_raises_system_exit(
script_setup: ModuleType,
) -> None:
env = {"PATH": "/usr/bin"}
with (
patch.object(
script_setup,
"git_output",
side_effect=_fake_git_output("/repo/.git", "/repo/.git"),
),
patch.object(script_setup.shutil, "which", return_value=None),
patch.object(script_setup.subprocess, "run") as mock_run,
pytest.raises(SystemExit, match="prek was not installed"),
):
script_setup.install_git_hooks(env)
mock_run.assert_not_called()
def test_install_git_hooks_happy_path_installs_hook(
script_setup: ModuleType, tmp_path: Path
) -> None:
env = {"PATH": "/usr/bin"}
common_dir = tmp_path / "repo" / ".git"
hooks_dir = common_dir / "hooks"
hooks_dir.mkdir(parents=True)
source_hook = tmp_path / "post-checkout"
source_hook.write_text("#!/bin/sh\necho post-checkout\n")
with (
patch.object(script_setup, "POST_CHECKOUT_HOOK", source_hook),
patch.object(
script_setup,
"git_output",
side_effect=_fake_git_output(str(common_dir), str(common_dir)),
),
patch.object(script_setup.shutil, "which", return_value="/usr/bin/prek"),
patch.object(
script_setup.subprocess, "run", return_value=Mock(returncode=0)
) as mock_run,
):
script_setup.install_git_hooks(env)
mock_run.assert_called_once_with(
["/usr/bin/prek", "install", "--overwrite"],
cwd=script_setup.ROOT,
env=env,
check=False,
)
installed = hooks_dir / "post-checkout"
assert installed.read_text() == source_hook.read_text()
if os.name != "nt":
# Windows has no POSIX permission bits for chmod to set.
assert (installed.stat().st_mode & 0o777) == 0o755
def test_install_git_hooks_skips_copy_when_hooks_dir_missing(
script_setup: ModuleType, tmp_path: Path
) -> None:
"""The prek install still runs when the hooks directory does not exist."""
env = {"PATH": "/usr/bin"}
common_dir = tmp_path / "repo" / ".git"
common_dir.mkdir(parents=True) # no "hooks" subdirectory created
with (
patch.object(
script_setup,
"git_output",
side_effect=_fake_git_output(str(common_dir), str(common_dir)),
),
patch.object(script_setup.shutil, "which", return_value="/usr/bin/prek"),
patch.object(
script_setup.subprocess, "run", return_value=Mock(returncode=0)
) as mock_run,
):
script_setup.install_git_hooks(env)
mock_run.assert_called_once()
assert not (common_dir / "hooks").exists()
# --- report ------------------------------------------------------------------
def test_report_active_state(
script_setup: ModuleType, capsys: pytest.CaptureFixture
) -> None:
venv = Path("/opt/esphome-venv")
script_setup.report(script_setup.VENV_ACTIVE, venv)
out = capsys.readouterr().out
assert "Dependencies installed into the active virtual environment:" in out
assert str(venv) in out
assert "is already active in this shell" in out
def test_report_reused_state(
script_setup: ModuleType, capsys: pytest.CaptureFixture
) -> None:
script_setup.report(script_setup.VENV_REUSED, script_setup.DEFAULT_VENV)
out = capsys.readouterr().out
assert "Dependencies updated in the existing ./venv" in out
def test_report_created_state(
script_setup: ModuleType, capsys: pytest.CaptureFixture
) -> None:
script_setup.report(script_setup.VENV_CREATED, script_setup.DEFAULT_VENV)
out = capsys.readouterr().out
assert "Virtual environment created at ./venv" in out
# --- main --------------------------------------------------------------------
def test_main_raises_system_exit_when_python_too_old(
script_setup: ModuleType,
) -> None:
with (
patch.object(script_setup.sys, "version_info", (3, 11, 5)),
pytest.raises(SystemExit, match="ESPHome needs Python 3.12"),
):
script_setup.main()
def test_main_uses_active_virtual_env(
script_setup: ModuleType, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
) -> None:
active_venv = tmp_path / "active-venv"
monkeypatch.setenv("VIRTUAL_ENV", str(active_venv))
with (
patch.object(script_setup, "ROOT", tmp_path),
patch.object(script_setup, "create_venv") as mock_create_venv,
patch.object(script_setup, "install_dependencies") as mock_install_deps,
patch.object(script_setup, "install_git_hooks") as mock_install_hooks,
patch.object(script_setup, "report") as mock_report,
):
script_setup.main()
mock_create_venv.assert_not_called()
mock_install_deps.assert_called_once()
mock_install_hooks.assert_called_once()
mock_report.assert_called_once_with(script_setup.VENV_ACTIVE, active_venv)
assert (tmp_path / ".temp").is_dir()
def test_main_reuses_existing_venv(
script_setup: ModuleType, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
) -> None:
monkeypatch.delenv("VIRTUAL_ENV", raising=False)
default_venv = tmp_path / "venv"
python_path = script_setup.venv_python(default_venv)
python_path.parent.mkdir(parents=True)
python_path.touch()
with (
patch.object(script_setup, "ROOT", tmp_path),
patch.object(script_setup, "DEFAULT_VENV", default_venv),
patch.object(script_setup, "create_venv") as mock_create_venv,
patch.object(script_setup, "install_dependencies") as mock_install_deps,
patch.object(script_setup, "install_git_hooks") as mock_install_hooks,
patch.object(script_setup, "report") as mock_report,
):
script_setup.main()
mock_create_venv.assert_not_called()
mock_install_deps.assert_called_once()
mock_install_hooks.assert_called_once()
mock_report.assert_called_once_with(script_setup.VENV_REUSED, default_venv)
assert (tmp_path / ".temp").is_dir()
def test_main_creates_new_venv(
script_setup: ModuleType, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
) -> None:
monkeypatch.delenv("VIRTUAL_ENV", raising=False)
default_venv = tmp_path / "venv" # does not exist yet
with (
patch.object(script_setup, "ROOT", tmp_path),
patch.object(script_setup, "DEFAULT_VENV", default_venv),
patch.object(script_setup, "create_venv") as mock_create_venv,
patch.object(script_setup, "install_dependencies") as mock_install_deps,
patch.object(script_setup, "install_git_hooks") as mock_install_hooks,
patch.object(script_setup, "report") as mock_report,
):
script_setup.main()
mock_create_venv.assert_called_once_with(default_venv)
mock_install_deps.assert_called_once()
mock_install_hooks.assert_called_once()
mock_report.assert_called_once_with(script_setup.VENV_CREATED, default_venv)
assert (tmp_path / ".temp").is_dir()
def test_run_as_script_calls_main(tmp_path: Path) -> None:
"""The __main__ guard runs the whole flow, with every side effect stubbed."""
completed = Mock(returncode=0, stdout="")
with (
patch("subprocess.run", return_value=completed) as mock_run,
patch("shutil.which", return_value="/usr/bin/uv"),
patch("pathlib.Path.mkdir") as mock_mkdir,
patch.dict(os.environ, {"VIRTUAL_ENV": str(tmp_path / "env")}),
):
runpy.run_path(str(_SCRIPT), run_name="__main__")
# The dependency install ran, and git reported no hooks directory to touch.
assert mock_run.called
mock_mkdir.assert_called_once_with(exist_ok=True)