# -*- coding: utf-8 -*-
import copy
import datetime

import dateutil

import arrow

try:
    # python 2.x
    from mock import patch, call
except ImportError:
    # python 3.x
    from unittest.mock import patch, call  # pylint: disable=no-name-in-module, import-error

from gitlint.tests.base import BaseTestCase
from gitlint.git import GitContext, GitCommit, GitContextError, LocalGitCommit, StagedLocalGitCommit, GitCommitMessage
from gitlint.shell import ErrorReturnCode
from gitlint.utils import ustr


class GitCommitTests(BaseTestCase):

    # Expected special_args passed to 'sh'
    expected_sh_special_args = {
        '_tty_out': False,
        '_cwd': u"fåke/path"
    }

    @patch('gitlint.git.sh')
    def test_get_latest_commit(self, sh):
        sample_sha = "d8ac47e9f2923c7f22d8668e3a1ed04eb4cdbca9"

        sh.git.side_effect = [
            sample_sha,
            u"test åuthor\x00test-emåil@foo.com\x002016-12-03 15:28:15 +0100\x00åbc\n"
            u"cömmit-title\n\ncömmit-body",
            u"#",  # git config --get core.commentchar
            u"file1.txt\npåth/to/file2.txt\n",
            u"foöbar\n* hürdur\n"
        ]

        context = GitContext.from_local_repository(u"fåke/path")
        # assert that commit info was read using git command
        expected_calls = [
            call("log", "-1", "--pretty=%H", **self.expected_sh_special_args),
            call("log", sample_sha, "-1", "--pretty=%aN%x00%aE%x00%ai%x00%P%n%B", **self.expected_sh_special_args),
            call('config', '--get', 'core.commentchar', _ok_code=[0, 1], **self.expected_sh_special_args),
            call('diff-tree', '--no-commit-id', '--name-only', '-r', '--root', sample_sha,
                 **self.expected_sh_special_args),
            call('branch', '--contains', sample_sha, **self.expected_sh_special_args)
        ]

        # Only first 'git log' call should've happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[:1])

        last_commit = context.commits[-1]
        self.assertIsInstance(last_commit, LocalGitCommit)
        self.assertEqual(last_commit.sha, sample_sha)
        self.assertEqual(last_commit.message.title, u"cömmit-title")
        self.assertEqual(last_commit.message.body, ["", u"cömmit-body"])
        self.assertEqual(last_commit.author_name, u"test åuthor")
        self.assertEqual(last_commit.author_email, u"test-emåil@foo.com")
        self.assertEqual(last_commit.date, datetime.datetime(2016, 12, 3, 15, 28, 15,
                                                             tzinfo=dateutil.tz.tzoffset("+0100", 3600)))
        self.assertListEqual(last_commit.parents, [u"åbc"])
        self.assertFalse(last_commit.is_merge_commit)
        self.assertFalse(last_commit.is_fixup_commit)
        self.assertFalse(last_commit.is_squash_commit)
        self.assertFalse(last_commit.is_revert_commit)

        # First 2 'git log' calls should've happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[:3])

        self.assertListEqual(last_commit.changed_files, ["file1.txt", u"påth/to/file2.txt"])
        # 'git diff-tree' should have happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[:4])

        self.assertListEqual(last_commit.branches, [u"foöbar", u"hürdur"])
        # All expected calls should've happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls)

    @patch('gitlint.git.sh')
    def test_from_local_repository_specific_ref(self, sh):
        sample_sha = "myspecialref"

        sh.git.side_effect = [
            sample_sha,
            u"test åuthor\x00test-emåil@foo.com\x002016-12-03 15:28:15 +0100\x00åbc\n"
            u"cömmit-title\n\ncömmit-body",
            u"#",  # git config --get core.commentchar
            u"file1.txt\npåth/to/file2.txt\n",
            u"foöbar\n* hürdur\n"
        ]

        context = GitContext.from_local_repository(u"fåke/path", sample_sha)
        # assert that commit info was read using git command
        expected_calls = [
            call("rev-list", sample_sha, **self.expected_sh_special_args),
            call("log", sample_sha, "-1", "--pretty=%aN%x00%aE%x00%ai%x00%P%n%B", **self.expected_sh_special_args),
            call('config', '--get', 'core.commentchar', _ok_code=[0, 1], **self.expected_sh_special_args),
            call('diff-tree', '--no-commit-id', '--name-only', '-r', '--root', sample_sha,
                 **self.expected_sh_special_args),
            call('branch', '--contains', sample_sha, **self.expected_sh_special_args)
        ]

        # Only first 'git log' call should've happened at this point
        self.assertEqual(sh.git.mock_calls, expected_calls[:1])

        last_commit = context.commits[-1]
        self.assertIsInstance(last_commit, LocalGitCommit)
        self.assertEqual(last_commit.sha, sample_sha)
        self.assertEqual(last_commit.message.title, u"cömmit-title")
        self.assertEqual(last_commit.message.body, ["", u"cömmit-body"])
        self.assertEqual(last_commit.author_name, u"test åuthor")
        self.assertEqual(last_commit.author_email, u"test-emåil@foo.com")
        self.assertEqual(last_commit.date, datetime.datetime(2016, 12, 3, 15, 28, 15,
                                                             tzinfo=dateutil.tz.tzoffset("+0100", 3600)))
        self.assertListEqual(last_commit.parents, [u"åbc"])
        self.assertFalse(last_commit.is_merge_commit)
        self.assertFalse(last_commit.is_fixup_commit)
        self.assertFalse(last_commit.is_squash_commit)
        self.assertFalse(last_commit.is_revert_commit)

        # First 2 'git log' calls should've happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[:3])

        self.assertListEqual(last_commit.changed_files, ["file1.txt", u"påth/to/file2.txt"])
        # 'git diff-tree' should have happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[:4])

        self.assertListEqual(last_commit.branches, [u"foöbar", u"hürdur"])
        # All expected calls should've happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls)

    @patch('gitlint.git.sh')
    def test_get_latest_commit_merge_commit(self, sh):
        sample_sha = "d8ac47e9f2923c7f22d8668e3a1ed04eb4cdbca9"

        sh.git.side_effect = [
            sample_sha,
            u"test åuthor\x00test-emåil@foo.com\x002016-12-03 15:28:15 +0100\x00åbc def\n"
            u"Merge \"foo bår commit\"",
            u"#",  # git config --get core.commentchar
            u"file1.txt\npåth/to/file2.txt\n",
            u"foöbar\n* hürdur\n"
        ]

        context = GitContext.from_local_repository(u"fåke/path")
        # assert that commit info was read using git command
        expected_calls = [
            call("log", "-1", "--pretty=%H", **self.expected_sh_special_args),
            call("log", sample_sha, "-1", "--pretty=%aN%x00%aE%x00%ai%x00%P%n%B", **self.expected_sh_special_args),
            call('config', '--get', 'core.commentchar', _ok_code=[0, 1], **self.expected_sh_special_args),
            call('diff-tree', '--no-commit-id', '--name-only', '-r', '--root', sample_sha,
                 **self.expected_sh_special_args),
            call('branch', '--contains', sample_sha, **self.expected_sh_special_args)
        ]

        # Only first 'git log' call should've happened at this point
        self.assertEqual(sh.git.mock_calls, expected_calls[:1])

        last_commit = context.commits[-1]
        self.assertIsInstance(last_commit, LocalGitCommit)
        self.assertEqual(last_commit.sha, sample_sha)
        self.assertEqual(last_commit.message.title, u"Merge \"foo bår commit\"")
        self.assertEqual(last_commit.message.body, [])
        self.assertEqual(last_commit.author_name, u"test åuthor")
        self.assertEqual(last_commit.author_email, u"test-emåil@foo.com")
        self.assertEqual(last_commit.date, datetime.datetime(2016, 12, 3, 15, 28, 15,
                                                             tzinfo=dateutil.tz.tzoffset("+0100", 3600)))
        self.assertListEqual(last_commit.parents, [u"åbc", "def"])
        self.assertTrue(last_commit.is_merge_commit)
        self.assertFalse(last_commit.is_fixup_commit)
        self.assertFalse(last_commit.is_squash_commit)
        self.assertFalse(last_commit.is_revert_commit)

        # First 2 'git log' calls should've happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[:3])

        self.assertListEqual(last_commit.changed_files, ["file1.txt", u"påth/to/file2.txt"])
        # 'git diff-tree' should have happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[:4])

        self.assertListEqual(last_commit.branches, [u"foöbar", u"hürdur"])
        # All expected calls should've happened at this point
        self.assertListEqual(sh.git.mock_calls, expected_calls)

    @patch('gitlint.git.sh')
    def test_get_latest_commit_fixup_squash_commit(self, sh):
        commit_types = ["fixup", "squash"]
        for commit_type in commit_types:
            sample_sha = "d8ac47e9f2923c7f22d8668e3a1ed04eb4cdbca9"

            sh.git.side_effect = [
                sample_sha,
                u"test åuthor\x00test-emåil@foo.com\x002016-12-03 15:28:15 +0100\x00åbc\n"
                u"{0}! \"foo bår commit\"".format(commit_type),
                u"#",  # git config --get core.commentchar
                u"file1.txt\npåth/to/file2.txt\n",
                u"foöbar\n* hürdur\n"
            ]

            context = GitContext.from_local_repository(u"fåke/path")
            # assert that commit info was read using git command
            expected_calls = [
                call("log", "-1", "--pretty=%H", **self.expected_sh_special_args),
                call("log", sample_sha, "-1", "--pretty=%aN%x00%aE%x00%ai%x00%P%n%B", **self.expected_sh_special_args),
                call('config', '--get', 'core.commentchar', _ok_code=[0, 1], **self.expected_sh_special_args),
                call('diff-tree', '--no-commit-id', '--name-only', '-r', '--root', sample_sha,
                     **self.expected_sh_special_args),
                call('branch', '--contains', sample_sha, **self.expected_sh_special_args)
            ]

            # Only first 'git log' call should've happened at this point
            self.assertEqual(sh.git.mock_calls, expected_calls[:-4])

            last_commit = context.commits[-1]
            self.assertIsInstance(last_commit, LocalGitCommit)
            self.assertEqual(last_commit.sha, sample_sha)
            self.assertEqual(last_commit.message.title, u"{0}! \"foo bår commit\"".format(commit_type))
            self.assertEqual(last_commit.message.body, [])
            self.assertEqual(last_commit.author_name, u"test åuthor")
            self.assertEqual(last_commit.author_email, u"test-emåil@foo.com")
            self.assertEqual(last_commit.date, datetime.datetime(2016, 12, 3, 15, 28, 15,
                                                                 tzinfo=dateutil.tz.tzoffset("+0100", 3600)))
            self.assertListEqual(last_commit.parents, [u"åbc"])

            # First 2 'git log' calls should've happened at this point
            self.assertEqual(sh.git.mock_calls, expected_calls[:3])

            # Asserting that squash and fixup are correct
            for type in commit_types:
                attr = "is_" + type + "_commit"
                self.assertEqual(getattr(last_commit, attr), commit_type == type)

            self.assertFalse(last_commit.is_merge_commit)
            self.assertFalse(last_commit.is_revert_commit)
            self.assertListEqual(last_commit.changed_files, ["file1.txt", u"påth/to/file2.txt"])

            self.assertListEqual(last_commit.changed_files, ["file1.txt", u"påth/to/file2.txt"])
            # 'git diff-tree' should have happened at this point
            self.assertListEqual(sh.git.mock_calls, expected_calls[:4])

            self.assertListEqual(last_commit.branches, [u"foöbar", u"hürdur"])
            # All expected calls should've happened at this point
            self.assertListEqual(sh.git.mock_calls, expected_calls)

            sh.git.reset_mock()

    @patch("gitlint.git.git_commentchar")
    def test_from_commit_msg_full(self, commentchar):
        commentchar.return_value = u"#"
        gitcontext = GitContext.from_commit_msg(self.get_sample("commit_message/sample1"))

        expected_title = u"Commit title contåining 'WIP', as well as trailing punctuation."
        expected_body = ["This line should be empty",
                         "This is the first line of the commit message body and it is meant to test a " +
                         "line that exceeds the maximum line length of 80 characters.",
                         u"This line has a tråiling space. ",
                         "This line has a trailing tab.\t"]
        expected_full = expected_title + "\n" + "\n".join(expected_body)
        expected_original = expected_full + (
            u"\n# This is a cömmented  line\n"
            u"# ------------------------ >8 ------------------------\n"
            u"# Anything after this line should be cleaned up\n"
            u"# this line appears on `git commit -v` command\n"
            u"diff --git a/gitlint/tests/samples/commit_message/sample1 "
            u"b/gitlint/tests/samples/commit_message/sample1\n"
            u"index 82dbe7f..ae71a14 100644\n"
            u"--- a/gitlint/tests/samples/commit_message/sample1\n"
            u"+++ b/gitlint/tests/samples/commit_message/sample1\n"
            u"@@ -1 +1 @@\n"
        )

        commit = gitcontext.commits[-1]
        self.assertIsInstance(commit, GitCommit)
        self.assertFalse(isinstance(commit, LocalGitCommit))
        self.assertEqual(commit.message.title, expected_title)
        self.assertEqual(commit.message.body, expected_body)
        self.assertEqual(commit.message.full, expected_full)
        self.assertEqual(commit.message.original, expected_original)
        self.assertEqual(commit.author_name, None)
        self.assertEqual(commit.author_email, None)
        self.assertEqual(commit.date, None)
        self.assertListEqual(commit.parents, [])
        self.assertListEqual(commit.branches, [])
        self.assertFalse(commit.is_merge_commit)
        self.assertFalse(commit.is_fixup_commit)
        self.assertFalse(commit.is_squash_commit)
        self.assertFalse(commit.is_revert_commit)
        self.assertEqual(len(gitcontext.commits), 1)

    def test_from_commit_msg_just_title(self):
        gitcontext = GitContext.from_commit_msg(self.get_sample("commit_message/sample2"))
        commit = gitcontext.commits[-1]

        self.assertIsInstance(commit, GitCommit)
        self.assertFalse(isinstance(commit, LocalGitCommit))
        self.assertEqual(commit.message.title, u"Just a title contåining WIP")
        self.assertEqual(commit.message.body, [])
        self.assertEqual(commit.message.full, u"Just a title contåining WIP")
        self.assertEqual(commit.message.original, u"Just a title contåining WIP")
        self.assertEqual(commit.author_name, None)
        self.assertEqual(commit.author_email, None)
        self.assertListEqual(commit.parents, [])
        self.assertListEqual(commit.branches, [])
        self.assertFalse(commit.is_merge_commit)
        self.assertFalse(commit.is_fixup_commit)
        self.assertFalse(commit.is_squash_commit)
        self.assertFalse(commit.is_revert_commit)
        self.assertEqual(len(gitcontext.commits), 1)

    def test_from_commit_msg_empty(self):
        gitcontext = GitContext.from_commit_msg("")
        commit = gitcontext.commits[-1]

        self.assertIsInstance(commit, GitCommit)
        self.assertFalse(isinstance(commit, LocalGitCommit))
        self.assertEqual(commit.message.title, "")
        self.assertEqual(commit.message.body, [])
        self.assertEqual(commit.message.full, "")
        self.assertEqual(commit.message.original, "")
        self.assertEqual(commit.author_name, None)
        self.assertEqual(commit.author_email, None)
        self.assertEqual(commit.date, None)
        self.assertListEqual(commit.parents, [])
        self.assertListEqual(commit.branches, [])
        self.assertFalse(commit.is_merge_commit)
        self.assertFalse(commit.is_fixup_commit)
        self.assertFalse(commit.is_squash_commit)
        self.assertFalse(commit.is_revert_commit)
        self.assertEqual(len(gitcontext.commits), 1)

    @patch("gitlint.git.git_commentchar")
    def test_from_commit_msg_comment(self, commentchar):
        commentchar.return_value = u"#"
        gitcontext = GitContext.from_commit_msg(u"Tïtle\n\nBödy 1\n#Cömment\nBody 2")
        commit = gitcontext.commits[-1]

        self.assertIsInstance(commit, GitCommit)
        self.assertFalse(isinstance(commit, LocalGitCommit))
        self.assertEqual(commit.message.title, u"Tïtle")
        self.assertEqual(commit.message.body, ["", u"Bödy 1", "Body 2"])
        self.assertEqual(commit.message.full, u"Tïtle\n\nBödy 1\nBody 2")
        self.assertEqual(commit.message.original, u"Tïtle\n\nBödy 1\n#Cömment\nBody 2")
        self.assertEqual(commit.author_name, None)
        self.assertEqual(commit.author_email, None)
        self.assertEqual(commit.date, None)
        self.assertListEqual(commit.parents, [])
        self.assertListEqual(commit.branches, [])
        self.assertFalse(commit.is_merge_commit)
        self.assertFalse(commit.is_fixup_commit)
        self.assertFalse(commit.is_squash_commit)
        self.assertFalse(commit.is_revert_commit)
        self.assertEqual(len(gitcontext.commits), 1)

    def test_from_commit_msg_merge_commit(self):
        commit_msg = "Merge f919b8f34898d9b48048bcd703bc47139f4ff621 into 8b0409a26da6ba8a47c1fd2e746872a8dab15401"
        gitcontext = GitContext.from_commit_msg(commit_msg)
        commit = gitcontext.commits[-1]

        self.assertIsInstance(commit, GitCommit)
        self.assertFalse(isinstance(commit, LocalGitCommit))
        self.assertEqual(commit.message.title, commit_msg)
        self.assertEqual(commit.message.body, [])
        self.assertEqual(commit.message.full, commit_msg)
        self.assertEqual(commit.message.original, commit_msg)
        self.assertEqual(commit.author_name, None)
        self.assertEqual(commit.author_email, None)
        self.assertEqual(commit.date, None)
        self.assertListEqual(commit.parents, [])
        self.assertListEqual(commit.branches, [])
        self.assertTrue(commit.is_merge_commit)
        self.assertFalse(commit.is_fixup_commit)
        self.assertFalse(commit.is_squash_commit)
        self.assertFalse(commit.is_revert_commit)
        self.assertEqual(len(gitcontext.commits), 1)

    def test_from_commit_msg_revert_commit(self):
        commit_msg = "Revert \"Prev commit message\"\n\nThis reverts commit a8ad67e04164a537198dea94a4fde81c5592ae9c."
        gitcontext = GitContext.from_commit_msg(commit_msg)
        commit = gitcontext.commits[-1]

        self.assertIsInstance(commit, GitCommit)
        self.assertFalse(isinstance(commit, LocalGitCommit))
        self.assertEqual(commit.message.title, "Revert \"Prev commit message\"")
        self.assertEqual(commit.message.body, ["", "This reverts commit a8ad67e04164a537198dea94a4fde81c5592ae9c."])
        self.assertEqual(commit.message.full, commit_msg)
        self.assertEqual(commit.message.original, commit_msg)
        self.assertEqual(commit.author_name, None)
        self.assertEqual(commit.author_email, None)
        self.assertEqual(commit.date, None)
        self.assertListEqual(commit.parents, [])
        self.assertListEqual(commit.branches, [])
        self.assertFalse(commit.is_merge_commit)
        self.assertFalse(commit.is_fixup_commit)
        self.assertFalse(commit.is_squash_commit)
        self.assertTrue(commit.is_revert_commit)
        self.assertEqual(len(gitcontext.commits), 1)

    def test_from_commit_msg_fixup_squash_commit(self):
        commit_types = ["fixup", "squash"]
        for commit_type in commit_types:
            commit_msg = "{0}! Test message".format(commit_type)
            gitcontext = GitContext.from_commit_msg(commit_msg)
            commit = gitcontext.commits[-1]

            self.assertIsInstance(commit, GitCommit)
            self.assertFalse(isinstance(commit, LocalGitCommit))
            self.assertEqual(commit.message.title, commit_msg)
            self.assertEqual(commit.message.body, [])
            self.assertEqual(commit.message.full, commit_msg)
            self.assertEqual(commit.message.original, commit_msg)
            self.assertEqual(commit.author_name, None)
            self.assertEqual(commit.author_email, None)
            self.assertEqual(commit.date, None)
            self.assertListEqual(commit.parents, [])
            self.assertListEqual(commit.branches, [])
            self.assertEqual(len(gitcontext.commits), 1)
            self.assertFalse(commit.is_merge_commit)
            self.assertFalse(commit.is_revert_commit)
            # Asserting that squash and fixup are correct
            for type in commit_types:
                attr = "is_" + type + "_commit"
                self.assertEqual(getattr(commit, attr), commit_type == type)

    @patch('gitlint.git.sh')
    @patch('arrow.now')
    def test_staged_commit(self, now, sh):
        # StagedLocalGitCommit()

        sh.git.side_effect = [
            u"#",                               # git config --get core.commentchar
            u"test åuthor\n",                   # git config --get user.name
            u"test-emåil@foo.com\n",            # git config --get user.email
            u"my-brånch\n",                     # git rev-parse --abbrev-ref HEAD
            u"file1.txt\npåth/to/file2.txt\n",
        ]
        now.side_effect = [arrow.get("2020-02-19T12:18:46.675182+01:00")]

        # We use a fixup commit, just to test a non-default path
        context = GitContext.from_staged_commit(u"fixup! Foōbar 123\n\ncömmit-body\n", u"fåke/path")

        # git calls we're expexting
        expected_calls = [
            call('config', '--get', 'core.commentchar', _ok_code=[0, 1], **self.expected_sh_special_args),
            call('config', '--get', 'user.name', **self.expected_sh_special_args),
            call('config', '--get', 'user.email', **self.expected_sh_special_args),
            call("rev-parse", "--abbrev-ref", "HEAD", **self.expected_sh_special_args),
            call("diff", "--staged", "--name-only", "-r", **self.expected_sh_special_args)
        ]

        last_commit = context.commits[-1]
        self.assertIsInstance(last_commit, StagedLocalGitCommit)
        self.assertIsNone(last_commit.sha, None)
        self.assertEqual(last_commit.message.title, u"fixup! Foōbar 123")
        self.assertEqual(last_commit.message.body, ["", u"cömmit-body"])
        # Only `git config --get core.commentchar` should've happened up until this point
        self.assertListEqual(sh.git.mock_calls, expected_calls[0:1])

        self.assertEqual(last_commit.author_name, u"test åuthor")
        self.assertListEqual(sh.git.mock_calls, expected_calls[0:2])

        self.assertEqual(last_commit.author_email, u"test-emåil@foo.com")
        self.assertListEqual(sh.git.mock_calls, expected_calls[0:3])

        self.assertEqual(last_commit.date, datetime.datetime(2020, 2, 19, 12, 18, 46,
                                                             tzinfo=dateutil.tz.tzoffset("+0100", 3600)))
        now.assert_called_once()

        self.assertListEqual(last_commit.parents, [])
        self.assertFalse(last_commit.is_merge_commit)
        self.assertTrue(last_commit.is_fixup_commit)
        self.assertFalse(last_commit.is_squash_commit)
        self.assertFalse(last_commit.is_revert_commit)

        self.assertListEqual(last_commit.branches, [u"my-brånch"])
        self.assertListEqual(sh.git.mock_calls, expected_calls[0:4])

        self.assertListEqual(last_commit.changed_files, ["file1.txt", u"påth/to/file2.txt"])
        self.assertListEqual(sh.git.mock_calls, expected_calls[0:5])

    @patch('gitlint.git.sh')
    def test_staged_commit_with_missing_username(self, sh):
        # StagedLocalGitCommit()

        sh.git.side_effect = [
            u"#",                               # git config --get core.commentchar
            ErrorReturnCode('git config --get user.name', b"", b""),
        ]

        expected_msg = "Missing git configuration: please set user.name"
        with self.assertRaisesMessage(GitContextError, expected_msg):
            ctx = GitContext.from_staged_commit(u"Foōbar 123\n\ncömmit-body\n", u"fåke/path")
            [ustr(commit) for commit in ctx.commits]

    @patch('gitlint.git.sh')
    def test_staged_commit_with_missing_email(self, sh):
        # StagedLocalGitCommit()

        sh.git.side_effect = [
            u"#",                               # git config --get core.commentchar
            u"test åuthor\n",                   # git config --get user.name
            ErrorReturnCode('git config --get user.name', b"", b""),
        ]

        expected_msg = "Missing git configuration: please set user.email"
        with self.assertRaisesMessage(GitContextError, expected_msg):
            ctx = GitContext.from_staged_commit(u"Foōbar 123\n\ncömmit-body\n", u"fåke/path")
            [ustr(commit) for commit in ctx.commits]

    def test_gitcommitmessage_equality(self):
        commit_message1 = GitCommitMessage(GitContext(), u"tëst\n\nfoo", u"tëst\n\nfoo", u"tēst", ["", u"föo"])
        attrs = ['original', 'full', 'title', 'body']
        self.object_equality_test(commit_message1, attrs, {"context": commit_message1.context})

    @patch("gitlint.git._git")
    def test_gitcommit_equality(self, git):
        # git will be called to setup the context (commentchar and current_branch), just return the same value
        # This only matters to test gitcontext equality, not gitcommit equality
        git.return_value = u"foöbar"

        # Test simple equality case
        now = datetime.datetime.utcnow()
        context1 = GitContext()
        commit_message1 = GitCommitMessage(context1, u"tëst\n\nfoo", u"tëst\n\nfoo", u"tēst", ["", u"föo"])
        commit1 = GitCommit(context1, commit_message1, u"shä", now, u"Jöhn Smith", u"jöhn.smith@test.com", None,
                            [u"föo/bar"], [u"brånch1", u"brånch2"])
        context1.commits = [commit1]

        context2 = GitContext()
        commit_message2 = GitCommitMessage(context2, u"tëst\n\nfoo", u"tëst\n\nfoo", u"tēst", ["", u"föo"])
        commit2 = GitCommit(context2, commit_message1, u"shä", now, u"Jöhn Smith", u"jöhn.smith@test.com", None,
                            [u"föo/bar"], [u"brånch1", u"brånch2"])
        context2.commits = [commit2]

        self.assertEqual(context1, context2)
        self.assertEqual(commit_message1, commit_message2)
        self.assertEqual(commit1, commit2)

        # Check that objects are unequal when changing a single attribute
        kwargs = {'message': commit1.message, 'sha': commit1.sha, 'date': commit1.date,
                  'author_name': commit1.author_name, 'author_email': commit1.author_email, 'parents': commit1.parents,
                  'changed_files': commit1.changed_files, 'branches': commit1.branches}

        self.object_equality_test(commit1, kwargs.keys(), {"context": commit1.context})

        # Check that the is_* attributes that are affected by the commit message affect equality
        special_messages = {'is_merge_commit': u"Merge: foöbar", 'is_fixup_commit': u"fixup! foöbar",
                            'is_squash_commit': u"squash! foöbar", 'is_revert_commit': u"Revert: foöbar"}
        for key in special_messages:
            kwargs_copy = copy.deepcopy(kwargs)
            clone1 = GitCommit(context=commit1.context, **kwargs_copy)
            clone1.message = GitCommitMessage.from_full_message(context1, special_messages[key])
            self.assertTrue(getattr(clone1, key))

            clone2 = GitCommit(context=commit1.context, **kwargs_copy)
            clone2.message = GitCommitMessage.from_full_message(context1, u"foöbar")
            self.assertNotEqual(clone1, clone2)

    @patch("gitlint.git.git_commentchar")
    def test_commit_msg_custom_commentchar(self, patched):
        patched.return_value = u"ä"
        context = GitContext()
        message = GitCommitMessage.from_full_message(context, u"Tïtle\n\nBödy 1\näCömment\nBody 2")

        self.assertEqual(message.title, u"Tïtle")
        self.assertEqual(message.body, ["", u"Bödy 1", "Body 2"])
        self.assertEqual(message.full, u"Tïtle\n\nBödy 1\nBody 2")
        self.assertEqual(message.original, u"Tïtle\n\nBödy 1\näCömment\nBody 2")
