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# Copyright (c) 2023-2024 Arista Networks, Inc.
# Use of this source code is governed by the Apache License 2.0
# that can be found in the LICENSE file.
"""Tests for anta.cli._main."""
from __future__ import annotations
import sys
from importlib import reload
from typing import TYPE_CHECKING, Any
from unittest.mock import patch
import pytest
import anta.cli
if TYPE_CHECKING:
from types import ModuleType
builtins_import = __import__
# Tried to achieve this with mock
# http://materials-scientist.com/blog/2021/02/11/mocking-failing-module-import-python/
def import_mock(name: str, *args: Any) -> ModuleType: # noqa: ANN401
"""Mock."""
if name == "click":
msg = "No module named 'click'"
raise ModuleNotFoundError(msg)
return builtins_import(name, *args)
def test_cli_error_missing(capsys: pytest.CaptureFixture[Any]) -> None:
"""Test ANTA errors out when anta[cli] was not installed."""
with patch.dict(sys.modules) as sys_modules, patch("builtins.__import__", import_mock):
del sys_modules["anta.cli._main"]
reload(anta.cli)
with pytest.raises(SystemExit) as e_info:
anta.cli.cli()
captured = capsys.readouterr()
assert "The ANTA command line client could not run because the required dependencies were not installed." in captured.out
assert "Make sure you've installed everything with: pip install 'anta[cli]'" in captured.out
assert e_info.value.code == 1
# setting ANTA_DEBUG
with pytest.raises(SystemExit) as e_info, patch("anta.cli.__DEBUG__", new=True):
anta.cli.cli()
captured = capsys.readouterr()
assert "The ANTA command line client could not run because the required dependencies were not installed." in captured.out
assert "Make sure you've installed everything with: pip install 'anta[cli]'" in captured.out
assert "The caught exception was:" in captured.out
assert e_info.value.code == 1
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