#!/usr/bin/env python

# -*- coding: utf-8 -*-

"""

 (c) 2017 - Copyright Red Hat Inc

 Authors:

   Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>

Tests for flake8 compliance of the code

"""

from __future__ import unicode_literals, absolute_import

import os

import subprocess

import sys

import unittest

import six

REPO_PATH = os.path.abspath(

    os.path.join(os.path.dirname(__file__), "..", "pagure")

)

TESTS_PATH = os.path.abspath(os.path.join(os.path.dirname(__file__)))

class TestStyle(unittest.TestCase):

    """This test class contains tests pertaining to code style."""

    def test_code_with_flake8(self):

        """Enforce PEP-8 compliance on the codebase.

        This test runs flake8 on the code, and will fail if it returns a

        non-zero exit code.

        """

        # We ignore E712, which disallows non-identity comparisons with True and False

        # We ignore W503, which disallows line break before binary operator

        flake8_command = [

            sys.executable,

            "-m",

            "flake8",

            "--ignore=E712,W503,E203",

            REPO_PATH,

        ]

        # check if we have an old flake8 or not

        import flake8

        flake8_v = flake8.__version__.split(".")

        for idx, val in enumerate(flake8_v):

            try:

                val = int(val)

            except ValueError:

                pass

            flake8_v[idx] = val

        old_flake = tuple(flake8_v) < (3, 0)

        if old_flake:

            raise unittest.SkipTest("Flake8 version too old to be useful")

        proc = subprocess.Popen(

            flake8_command, stdout=subprocess.PIPE, cwd=REPO_PATH

        )

        print(proc.communicate())

        self.assertEqual(proc.returncode, 0)

    @unittest.skipIf(

        not (six.PY3 and sys.version_info.minor >= 6),

        "Black is only available in python 3.6+",

    )

    def test_code_with_black(self):

        """Enforce black compliance on the codebase.

        This test runs black on the code, and will fail if it returns a

        non-zero exit code.

        """

        black_command = [

            sys.executable,

            "-m",

            "black",

            "-l",

            "79",

            "--check",

            REPO_PATH,

            TESTS_PATH,

        ]

        proc = subprocess.Popen(

            black_command,

            stdout=subprocess.PIPE,

            stderr=subprocess.PIPE,

            cwd=REPO_PATH,

        )

        stdout, stderr = proc.communicate()

        print("stdout: ")

        print(stdout.decode("utf-8"))

        print("stderr: ")

        print(stderr.decode("utf-8"))

        self.assertEqual(proc.returncode, 0)

if __name__ == "__main__":

    unittest.main(verbosity=2)