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105 lines
2.9 KiB
Python
105 lines
2.9 KiB
Python
"""Tests for the Application class."""
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import argparse
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import sys
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from unittest import mock
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import pytest
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from flake8.main import application as app
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def options(**kwargs):
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"""Generate argparse.Namespace for our Application."""
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kwargs.setdefault("verbose", 0)
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kwargs.setdefault("output_file", None)
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kwargs.setdefault("count", False)
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kwargs.setdefault("exit_zero", False)
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return argparse.Namespace(**kwargs)
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@pytest.fixture
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def application():
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"""Create an application."""
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return app.Application()
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@pytest.mark.parametrize(
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"result_count, catastrophic, exit_zero, value",
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[
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(0, False, False, 0),
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(0, True, False, 1),
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(2, False, False, 1),
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(2, True, False, 1),
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(0, True, True, 1),
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(2, False, True, 0),
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(2, True, True, 1),
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],
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)
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def test_application_exit_code(
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result_count, catastrophic, exit_zero, value, application
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):
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"""Verify Application.exit_code returns the correct value."""
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application.result_count = result_count
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application.catastrophic_failure = catastrophic
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application.options = options(exit_zero=exit_zero)
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assert application.exit_code() == value
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def test_warns_on_unknown_formatter_plugin_name(application):
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"""Verify we log a warning with an unfound plugin."""
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default = mock.Mock()
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execute = default.execute
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application.formatting_plugins = {
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"default": default,
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}
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with mock.patch.object(app.LOG, "warning") as warning:
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assert execute is application.formatter_for("fake-plugin-name")
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assert warning.called is True
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assert warning.call_count == 1
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def test_returns_specified_plugin(application):
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"""Verify we get the plugin we want."""
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desired = mock.Mock()
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execute = desired.execute
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application.formatting_plugins = {
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"default": mock.Mock(),
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"desired": desired,
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}
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with mock.patch.object(app.LOG, "warning") as warning:
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assert execute is application.formatter_for("desired")
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assert warning.called is False
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def test_prelim_opts_args(application):
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"""Verify we get sensible prelim opts and args."""
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opts, args = application.parse_preliminary_options(
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["--foo", "--verbose", "src", "setup.py", "--statistics", "--version"]
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)
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assert opts.verbose
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assert args == ["--foo", "src", "setup.py", "--statistics", "--version"]
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def test_prelim_opts_ignore_help(application):
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"""Verify -h/--help is not handled."""
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# GIVEN
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# WHEN
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_, args = application.parse_preliminary_options(["--help", "-h"])
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# THEN
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assert args == ["--help", "-h"]
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def test_prelim_opts_handles_empty(application):
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"""Verify empty argv lists are handled correctly."""
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irrelevant_args = ["myexe", "/path/to/foo"]
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with mock.patch.object(sys, "argv", irrelevant_args):
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opts, args = application.parse_preliminary_options([])
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assert args == []
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