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"""Tests for Flake8's legacy API."""
import mock
import pytest
from flake8.api import legacy as api
from flake8.formatting import base as formatter
def test_get_style_guide():
"""Verify the methods called on our internal Application."""
mockedapp = mock.Mock()
with mock.patch('flake8.main.application.Application') as Application:
Application.return_value = mockedapp
style_guide = api.get_style_guide()
Application.assert_called_once_with()
mockedapp.find_plugins.assert_called_once_with()
mockedapp.register_plugin_options.assert_called_once_with()
mockedapp.parse_configuration_and_cli.assert_called_once_with([])
mockedapp.make_formatter.assert_called_once_with()
mockedapp.make_notifier.assert_called_once_with()
mockedapp.make_guide.assert_called_once_with()
mockedapp.make_file_checker_manager.assert_called_once_with()
assert isinstance(style_guide, api.StyleGuide)
def test_styleguide_options():
"""Show tha we proxy the StyleGuide.options attribute."""
app = mock.Mock()
app.options = 'options'
style_guide = api.StyleGuide(app)
assert style_guide.options == 'options'
def test_styleguide_paths():
"""Show tha we proxy the StyleGuide.paths attribute."""
app = mock.Mock()
app.paths = 'paths'
style_guide = api.StyleGuide(app)
assert style_guide.paths == 'paths'
def test_styleguide_check_files():
"""Verify we call the right application methods."""
paths = ['foo', 'bar']
app = mock.Mock()
style_guide = api.StyleGuide(app)
report = style_guide.check_files(paths)
app.run_checks.assert_called_once_with(paths)
app.report_errors.assert_called_once_with()
assert isinstance(report, api.Report)
def test_styleguide_excluded():
"""Verify we delegate to our file checker manager.
We also want to ensure that if we don't specify a parent, is_path_excluded
is called exactly once.
"""
app = mock.Mock()
file_checker_manager = app.file_checker_manager = mock.Mock()
style_guide = api.StyleGuide(app)
style_guide.excluded('file.py')
file_checker_manager.is_path_excluded.assert_called_once_with('file.py')
def test_styleguide_excluded_with_parent():
"""Verify we delegate to our file checker manager.
When we add the parent argument, we don't check that is_path_excluded was
called only once.
"""
app = mock.Mock()
file_checker_manager = app.file_checker_manager = mock.Mock()
style_guide = api.StyleGuide(app)
style_guide.excluded('file.py', 'parent')
file_checker_manager.is_path_excluded.call_args == [
('file.py',),
('parent/file.py',),
]
def test_styleguide_init_report_does_nothing():
"""Verify if we use None that we don't call anything."""
app = mock.Mock()
style_guide = api.StyleGuide(app)
style_guide.init_report()
assert app.make_formatter.called is False
assert app.make_guide.called is False
def test_styleguide_init_report_with_non_subclass():
"""Verify we raise a ValueError with non BaseFormatter subclasses."""
app = mock.Mock()
style_guide = api.StyleGuide(app)
with pytest.raises(ValueError):
style_guide.init_report(object)
assert app.make_formatter.called is False
assert app.make_guide.called is False
def test_styleguide_init_report():
"""Verify we do the right incantation for the Application."""
app = mock.Mock(guide='fake')
style_guide = api.StyleGuide(app)
class FakeFormatter(formatter.BaseFormatter):
def format(self, *args):
pass
style_guide.init_report(FakeFormatter)
app.make_formatter.assert_called_once_with(FakeFormatter)
assert app.guide is None
app.make_guide.assert_called_once_with()
def test_styleguide_input_file():
"""Verify we call StyleGuide.check_files with the filename."""
app = mock.Mock()
style_guide = api.StyleGuide(app)
with mock.patch.object(style_guide, 'check_files') as check_files:
style_guide.input_file('file.py')
check_files.assert_called_once_with(['file.py'])
def test_report_total_errors():
"""Verify total errors is just a proxy attribute."""
app = mock.Mock(result_count='Fake count')
report = api.Report(app)
assert report.total_errors == 'Fake count'
def test_report_get_statistics():
"""Verify that we use the statistics object."""
stats = mock.Mock()
stats.statistics_for.return_value = []
style_guide = mock.Mock(stats=stats)
app = mock.Mock(guide=style_guide)
report = api.Report(app)
assert report.get_statistics('E') == []
stats.statistics_for.assert_called_once_with('E')
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