mirror of
https://github.com/PyCQA/flake8.git
synced 2026-03-29 02:26:54 +00:00
65 lines
1.9 KiB
Python
65 lines
1.9 KiB
Python
"""Unit tests for the FileChecker class."""
|
|
from __future__ import annotations
|
|
|
|
import argparse
|
|
from unittest import mock
|
|
|
|
import pytest
|
|
|
|
import flake8
|
|
from flake8 import checker
|
|
from flake8._compat import importlib_metadata
|
|
from flake8.plugins import finder
|
|
|
|
|
|
@mock.patch("flake8.checker.FileChecker._make_processor", return_value=None)
|
|
def test_repr(*args):
|
|
"""Verify we generate a correct repr."""
|
|
file_checker = checker.FileChecker(
|
|
filename="example.py",
|
|
plugins=finder.Checkers([], [], []),
|
|
options=argparse.Namespace(),
|
|
)
|
|
assert repr(file_checker) == "FileChecker for example.py"
|
|
|
|
|
|
def test_nonexistent_file():
|
|
"""Verify that checking non-existent file results in an error."""
|
|
c = checker.FileChecker(
|
|
filename="example.py",
|
|
plugins=finder.Checkers([], [], []),
|
|
options=argparse.Namespace(),
|
|
)
|
|
|
|
assert c.processor is None
|
|
assert not c.should_process
|
|
assert len(c.results) == 1
|
|
error = c.results[0]
|
|
assert error[0] == "E902"
|
|
|
|
|
|
def test_raises_exception_on_failed_plugin(tmp_path, default_options):
|
|
"""Checks that a failing plugin results in PluginExecutionFailed."""
|
|
fname = tmp_path.joinpath("t.py")
|
|
fname.touch()
|
|
plugin = finder.LoadedPlugin(
|
|
finder.Plugin(
|
|
"plugin-name",
|
|
"1.2.3",
|
|
importlib_metadata.EntryPoint("X", "dne:dne", "flake8.extension"),
|
|
),
|
|
mock.Mock(side_effect=ValueError),
|
|
{},
|
|
)
|
|
fchecker = checker.FileChecker(
|
|
filename=str(fname),
|
|
plugins=finder.Checkers([], [], []),
|
|
options=default_options,
|
|
)
|
|
with pytest.raises(flake8.exceptions.PluginExecutionFailed) as excinfo:
|
|
fchecker.run_check(plugin)
|
|
expected = (
|
|
f'{fname}: "plugin-name[X]" failed during execution '
|
|
f"due to ValueError()"
|
|
)
|
|
assert str(excinfo.value) == expected
|