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from __future__ import annotations
import os
from textwrap import dedent
import flake8
from pytest_flake8_path import Flake8Result
# Prevent Flake8 from running in dev mode because it returns some problems
os.environ.pop("PYTHONDEVMODE", None)
def test_windows_path_normalization():
result = Flake8Result(
out=(
".\\example.py:1:2: E221 multiple spaces before operator\n"
+ "Flake8 is here!\n"
),
err="",
exit_code=0,
)
assert result.out_lines == [
"./example.py:1:2: E221 multiple spaces before operator",
"Flake8 is here!",
]
def test_simple_run(flake8_path):
(flake8_path / "example.py").write_text("x = 1\n")
result = flake8_path.run_flake8()
assert result.out_lines == [
"./example.py:1:2: E221 multiple spaces before operator"
]
assert result.err_lines == []
assert result.exit_code == 1
def test_multi_line(flake8_path):
(flake8_path / "example.py").write_text(
dedent(
"""\
x = 1
y = 2
"""
)
)
result = flake8_path.run_flake8()
assert result.out_lines == [
"./example.py:1:2: E221 multiple spaces before operator",
"./example.py:2:2: E221 multiple spaces before operator",
]
assert result.err_lines == []
assert result.exit_code == 1
def test_with_setup_cfg(flake8_path):
(flake8_path / "setup.cfg").write_text(
dedent(
"""\
[flake8]
ignore = E221
"""
)
)
(flake8_path / "example.py").write_text("x = 1\n")
result = flake8_path.run_flake8()
assert result.out_lines == []
assert result.err_lines == []
assert result.exit_code == 0
def test_error_output(flake8_path):
(flake8_path / "setup.cfg").write_text(
dedent(
"""
[flake8]
extend-select = MC1
[flake8:local-plugins]
extension =
MC1 = example:MyChecker1
paths = .
"""
)
)
(flake8_path / "example.py").write_text(
dedent(
"""
import warnings
warnings.warn("This is a warning!", UserWarning)
class MyChecker1:
name = "MyChecker1"
version = "1"
def __init__(self, tree):
self.tree = tree
def run(self):
if False:
yield
"""
)
)
result = flake8_path.run_flake8()
assert "This is a warning!" in result.err
assert result.err_lines[0].endswith("UserWarning: This is a warning!")
assert result.err_lines[1] == ' warnings.warn("This is a warning!", UserWarning)'
def test_extra_args(flake8_path):
(flake8_path / "example.py").write_text("x = 1\n")
result = flake8_path.run_flake8(["--ignore", "E221"])
assert result.out_lines == []
assert result.err_lines == []
assert result.exit_code == 0
def test_extra_args_version(flake8_path):
result = flake8_path.run_flake8(extra_args=["--version"])
assert result.out.startswith(flake8.__version__ + " ")
def test_separate_tmp_path(flake8_path, tmp_path):
(flake8_path / "example.py").write_text("x = 1\n")
assert not (tmp_path / "example.py").exists()
|
