# -*- coding: utf-8 -*-
# Copyright 2018 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Unit tests for the chrome_committer library."""

from __future__ import print_function

import os
import sys

from chromite.lib import cros_test_lib
from chromite.lib import osutils
from chromite.lib import chrome_committer


assert sys.version_info >= (3, 6), 'This module requires Python 3.6+'


class ChromeCommitterTester(cros_test_lib.RunCommandTestCase,
                            cros_test_lib.MockTempDirTestCase):
  """Test cros_chromeos_lkgm.Committer."""

  def setUp(self):
    """Common set up method for all tests."""
    osutils.SafeMakedirs(os.path.join(self.tempdir, '.git', 'info'))
    osutils.WriteFile(os.path.join(self.tempdir, 'OWNERS'), 'foo@chromium.org')
    osutils.SafeMakedirs(os.path.join(self.tempdir, 'chromeos'))
    osutils.WriteFile(os.path.join(self.tempdir, 'chromeos', 'BUILD.gn'),
                      'assert(is_chromeos)')
    self.committer = chrome_committer.ChromeCommitter(
        'user@test.org', self.tempdir)

  def _assertCommand(self, git_cmd):
    self.assertCommandContains(git_cmd.split(' '))

  def testCheckout(self):
    """Tests checkout with mocked out git."""
    self.committer.Checkout(['OWNERS'])

    self._assertCommand('git init')
    self._assertCommand('git remote add origin '
                        'https://chromium.googlesource.com/chromium/src.git')
    self._assertCommand('git config core.sparsecheckout true')
    self._assertCommand('git fetch --depth=1')
    self._assertCommand('git pull origin master')
    self._assertCommand('git checkout -B auto-commit-branch origin/master')
    self.assertEqual(
        osutils.ReadFile(os.path.join(self.tempdir, '.git', 'info',
                                      'sparse-checkout')),
        'OWNERS\ncodereview.settings\nWATCHLISTS')

  def testCommit(self):
    """Tests that we can commit a file."""
    self.committer.Checkout(['OWNERS'])
    self.committer.Commit(['OWNERS', 'chromeos/BUILD.gn'],
                          'Modify OWNERS and BUILD.gn')

    self._assertCommand('git add -- OWNERS')
    self._assertCommand('git add -- BUILD.gn')
    self.assertCommandContains(['git',
                                '-c', 'user.email=user@test.org',
                                '-c', 'user.name=user@test.org',
                                'commit', '-m',
                                'Automated Commit: Modify OWNERS and BUILD.gn'])

    # Non-existent file should raise.
    self.assertRaisesRegex(chrome_committer.CommitError,
                           'Invalid path: /tmp/chromite.*/nonexistent$',
                           self.committer.Commit,
                           ['nonexistent'], 'Commit non-existent file')

  def testUpload(self):
    """Tests that we can upload a commit."""
    self.committer.Checkout(['OWNERS'])
    self.committer.Commit(['OWNERS', 'chromeos/BUILD.gn'],
                          'Modify OWNERS and BUILD.gn')

    self.committer.Upload()

    self.assertCommandContains(['git',
                                '-c', 'user.email=user@test.org',
                                '-c', 'user.name=user@test.org',
                                'cl', 'upload', '-v', '-m',
                                'Automated Commit: Modify OWNERS and BUILD.gn',
                                '--bypass-hooks', '-f',
                                '--tbrs', 'chrome-os-gardeners@google.com',
                                '--send-mail', '--use-commit-queue'])

  def testUploadDryRun(self):
    """Tests that we can upload a commit with dryrun."""
    self.committer.Checkout(['OWNERS'])
    self.committer.Commit(['OWNERS', 'chromeos/BUILD.gn'],
                          'Modify OWNERS and BUILD.gn')

    self.committer._dryrun = True  # pylint: disable=protected-access
    self.committer.Upload()

    self.assertCommandContains(['git',
                                '-c', 'user.email=user@test.org',
                                '-c', 'user.name=user@test.org',
                                'cl', 'upload', '-v', '-m',
                                'Automated Commit: Modify OWNERS and BUILD.gn',
                                '--bypass-hooks', '-f', '--dry-run'])