mirror of
https://github.com/PyCQA/flake8.git
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87 lines
2.2 KiB
Python
87 lines
2.2 KiB
Python
"""Integration tests for the main entrypoint of flake8."""
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import mock
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from flake8 import utils
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from flake8.main import application
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def test_diff_option(tmpdir, capsys):
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"""Ensure that `flake8 --diff` works."""
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t_py_contents = '''\
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import os
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import sys # unused but not part of diff
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print('(to avoid trailing whitespace in test)')
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print('(to avoid trailing whitespace in test)')
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print(os.path.join('foo', 'bar'))
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y # part of the diff and an error
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'''
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diff = '''\
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diff --git a/t.py b/t.py
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index d64ac39..7d943de 100644
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--- a/t.py
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+++ b/t.py
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@@ -4,3 +4,5 @@ import sys # unused but not part of diff
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print('(to avoid trailing whitespace in test)')
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print('(to avoid trailing whitespace in test)')
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print(os.path.join('foo', 'bar'))
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+
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+y # part of the diff and an error
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'''
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with mock.patch.object(utils, 'stdin_get_value', return_value=diff):
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with tmpdir.as_cwd():
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tmpdir.join('t.py').write(t_py_contents)
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app = application.Application()
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app.run(['--diff'])
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out, err = capsys.readouterr()
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assert out == "t.py:8:1: F821 undefined name 'y'\n"
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assert err == ''
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def test_statistics_option(tmpdir, capsys):
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"""Ensure that `flake8 --statistics` works."""
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with tmpdir.as_cwd():
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tmpdir.join('t.py').write('import os\nimport sys\n')
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app = application.Application()
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app.run(['--statistics', 't.py'])
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out, err = capsys.readouterr()
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assert out == '''\
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t.py:1:1: F401 'os' imported but unused
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t.py:2:1: F401 'sys' imported but unused
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2 F401 'os' imported but unused
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'''
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assert err == ''
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def test_malformed_per_file_ignores_error(tmpdir, capsys):
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"""Test the error message for malformed `per-file-ignores`."""
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setup_cfg = '''\
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[flake8]
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per-file-ignores =
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incorrect/*
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values/*
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'''
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with tmpdir.as_cwd():
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tmpdir.join('setup.cfg').write(setup_cfg)
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app = application.Application()
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app.run(['.'])
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out, err = capsys.readouterr()
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assert out == '''\
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There was a critical error during execution of Flake8:
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Expected `per-file-ignores` to be a mapping from file exclude patterns to ignore codes.
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Configured `per-file-ignores` setting:
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incorrect/*
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values/*
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''' # noqa: E501
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