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# test_commit.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php

from test.testlib import *
from git import *

class TestCommit(TestBase):

    def test_bake(self):

        commit = Commit(self.rorepo, **{'sha': '2454ae89983a4496a445ce347d7a41c0bb0ea7ae'})
        commit.author # bake

        assert_equal("Sebastian Thiel", commit.author.name)
        assert_equal("byronimo@gmail.com", commit.author.email)
        assert commit.author == commit.committer
        assert isinstance(commit.authored_date, int) and isinstance(commit.committed_date, int)
        assert isinstance(commit.author_tz_offset, int) and isinstance(commit.committer_tz_offset, int)
        assert commit.message == "Added missing information to docstrings of commit and stats module"


    def test_stats(self):
        commit = Commit(self.rorepo, '33ebe7acec14b25c5f84f35a664803fcab2f7781')
        stats = commit.stats
        
        def check_entries(d):
            assert isinstance(d, dict)
            for key in ("insertions", "deletions", "lines"):
                assert key in d
        # END assertion helper 
        assert stats.files 
        assert stats.total
        
        check_entries(stats.total) 
        assert "files" in stats.total
        
        for filepath, d in stats.files.items():
            check_entries(d)
        # END for each stated file
        
        # assure data is parsed properly
        michael = Actor._from_string("Michael Trier <mtrier@gmail.com>")
        assert commit.author == michael
        assert commit.committer == michael
        assert commit.authored_date == 1210193388
        assert commit.committed_date == 1210193388
        assert commit.author_tz_offset == 14400, commit.author_tz_offset
        assert commit.committer_tz_offset == 14400, commit.committer_tz_offset
        assert commit.message == "initial project"
        
    def test_traversal(self):
        start = self.rorepo.commit("a4d06724202afccd2b5c54f81bcf2bf26dea7fff")
        first = self.rorepo.commit("33ebe7acec14b25c5f84f35a664803fcab2f7781")
        p0 = start.parents[0]
        p1 = start.parents[1]
        p00 = p0.parents[0]
        p10 = p1.parents[0]
        
        # basic branch first, depth first
        dfirst = start.traverse(branch_first=False)
        bfirst = start.traverse(branch_first=True)
        assert dfirst.next() == p0
        assert dfirst.next() == p00
        
        assert bfirst.next() == p0
        assert bfirst.next() == p1
        assert bfirst.next() == p00
        assert bfirst.next() == p10
        
        # at some point, both iterations should stop
        assert list(bfirst)[-1] == first
        stoptraverse = self.rorepo.commit("254d04aa3180eb8b8daf7b7ff25f010cd69b4e7d").traverse(as_edge=True)
        l = list(stoptraverse)
        assert len(l[0]) == 2
        
        # ignore self
        assert start.traverse(ignore_self=False).next() == start
        
        # depth 
        assert len(list(start.traverse(ignore_self=False, depth=0))) == 1
        
        # prune
        assert start.traverse(branch_first=1, prune=lambda i,d: i==p0).next() == p1
        
        # predicate
        assert start.traverse(branch_first=1, predicate=lambda i,d: i==p1).next() == p1
        
        # traversal should stop when the beginning is reached
        self.failUnlessRaises(StopIteration, first.traverse().next)
        
        # parents of the first commit should be empty ( as the only parent has a null 
        # sha )
        assert len(first.parents) == 0
        
    def test_iteration(self):
        # we can iterate commits
        all_commits = Commit.list_items(self.rorepo, self.rorepo.head)
        assert all_commits
        assert all_commits == list(self.rorepo.iter_commits())
        
        # this includes merge commits
        mcomit = Commit(self.rorepo, 'd884adc80c80300b4cc05321494713904ef1df2d')
        assert mcomit in all_commits
        
        # we can limit the result to paths
        ltd_commits = list(self.rorepo.iter_commits(paths='CHANGES'))
        assert ltd_commits and len(ltd_commits) < len(all_commits)
        
        # show commits of multiple paths, resulting in a union of commits
        less_ltd_commits = list(Commit.iter_items(self.rorepo, 'master', paths=('CHANGES', 'AUTHORS')))
        assert len(ltd_commits) < len(less_ltd_commits)
        
        
    @patch_object(Git, '_call_process')
    def test_rev_list_bisect_all(self, git):
        """
        'git rev-list --bisect-all' returns additional information
        in the commit header.  This test ensures that we properly parse it.
        """

        git.return_value = fixture('rev_list_bisect_all')

        revs = self.rorepo.git.rev_list('HEAD',
                                      pretty='raw',
                                      first_parent=True,
                                      bisect_all=True)
        assert_true(git.called)

        commits = Commit._iter_from_process_or_stream(self.rorepo, ListProcessAdapter(revs), True)
        expected_ids = (
            'cf37099ea8d1d8c7fbf9b6d12d7ec0249d3acb8b',
            '33ebe7acec14b25c5f84f35a664803fcab2f7781',
            'a6604a00a652e754cb8b6b0b9f194f839fc38d7c',
            '8df638c22c75ddc9a43ecdde90c0c9939f5009e7',
            'c231551328faa864848bde6ff8127f59c9566e90',
        )
        for sha1, commit in zip(expected_ids, commits):
            assert_equal(sha1, commit.sha)

    def test_count(self):
        assert self.rorepo.tag('refs/tags/0.1.5').commit.count( ) == 143
        
    def test_list(self):
        assert isinstance(Commit.list_items(self.rorepo, '0.1.5', max_count=5)['5117c9c8a4d3af19a9958677e45cda9269de1541'], Commit)

    def test_str(self):
        commit = Commit(self.rorepo, 'abc')
        assert_equal ("abc", str(commit))

    def test_repr(self):
        commit = Commit(self.rorepo, 'abc')
        assert_equal('<git.Commit "abc">', repr(commit))

    def test_equality(self):
        commit1 = Commit(self.rorepo, 'abc')
        commit2 = Commit(self.rorepo, 'abc')
        commit3 = Commit(self.rorepo, 'zyx')
        assert_equal(commit1, commit2)
        assert_not_equal(commit2, commit3)
        
    def test_iter_parents(self):
        # should return all but ourselves, even if skip is defined
        c = self.rorepo.commit('0.1.5')
        for skip in (0, 1):
            piter = c.iter_parents(skip=skip)
            first_parent = piter.next()
            assert first_parent != c
            assert first_parent == c.parents[0]
        # END for each 
        
    def test_base(self):
        name_rev = self.rorepo.head.commit.name_rev
        assert isinstance(name_rev, basestring)