File: test_branch_empty.py

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# Copyright 2010-2025 The pygit2 contributors
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
#
# In addition to the permissions in the GNU General Public License,
# the authors give you unlimited permission to link the compiled
# version of this file into combinations with other programs,
# and to distribute those combinations without any restriction
# coming from the use of this file.  (The General Public License
# restrictions do apply in other respects; for example, they cover
# modification of the file, and distribution when not linked into
# a combined executable.)
#
# This file is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING.  If not, write to
# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.

from collections.abc import Generator

import pytest

from pygit2 import Commit, Repository
from pygit2.enums import BranchType

ORIGIN_MASTER_COMMIT = '784855caf26449a1914d2cf62d12b9374d76ae78'


@pytest.fixture
def repo(emptyrepo: Repository) -> Generator[Repository, None, None]:
    remote = emptyrepo.remotes[0]
    remote.fetch()
    yield emptyrepo


def test_branches_remote_get(repo: Repository) -> None:
    branch = repo.branches.remote.get('origin/master')
    assert branch.target == ORIGIN_MASTER_COMMIT
    assert repo.branches.remote.get('origin/not-exists') is None


def test_branches_remote(repo: Repository) -> None:
    branches = sorted(repo.branches.remote)
    assert branches == ['origin/master']


def test_branches_remote_getitem(repo: Repository) -> None:
    branch = repo.branches.remote['origin/master']
    assert branch.remote_name == 'origin'


def test_branches_upstream(repo: Repository) -> None:
    remote_master = repo.branches.remote['origin/master']
    commit = repo[remote_master.target]
    assert isinstance(commit, Commit)
    master = repo.branches.create('master', commit)

    assert master.upstream is None
    master.upstream = remote_master
    assert master.upstream.branch_name == 'origin/master'

    def set_bad_upstream():
        master.upstream = 2.5

    with pytest.raises(TypeError):
        set_bad_upstream()

    master.upstream = None
    assert master.upstream is None


def test_branches_upstream_name(repo: Repository) -> None:
    remote_master = repo.branches.remote['origin/master']
    commit = repo[remote_master.target]
    assert isinstance(commit, Commit)
    master = repo.branches.create('master', commit)

    master.upstream = remote_master
    assert master.upstream_name == 'refs/remotes/origin/master'


#
# Low level API written in C, repo.remotes call these.
#


def test_lookup_branch_remote(repo: Repository) -> None:
    branch = repo.lookup_branch('origin/master', BranchType.REMOTE)
    assert branch.target == ORIGIN_MASTER_COMMIT
    assert repo.lookup_branch('origin/not-exists', BranchType.REMOTE) is None


def test_listall_branches(repo: Repository) -> None:
    branches = sorted(repo.listall_branches(BranchType.REMOTE))
    assert branches == ['origin/master']

    branches_raw = sorted(repo.raw_listall_branches(BranchType.REMOTE))
    assert branches_raw == [b'origin/master']


def test_branch_remote_name(repo: Repository) -> None:
    branch = repo.lookup_branch('origin/master', BranchType.REMOTE)
    assert branch.remote_name == 'origin'


def test_branch_upstream(repo: Repository) -> None:
    remote_master = repo.lookup_branch('origin/master', BranchType.REMOTE)
    commit = repo[remote_master.target]
    assert isinstance(commit, Commit)
    master = repo.create_branch('master', commit)

    assert master.upstream is None
    master.upstream = remote_master
    assert master.upstream.branch_name == 'origin/master'

    def set_bad_upstream():
        master.upstream = 2.5

    with pytest.raises(TypeError):
        set_bad_upstream()

    master.upstream = None
    assert master.upstream is None


def test_branch_upstream_name(repo: Repository) -> None:
    remote_master = repo.lookup_branch('origin/master', BranchType.REMOTE)
    commit = repo[remote_master.target]
    assert isinstance(commit, Commit)
    master = repo.create_branch('master', commit)

    master.upstream = remote_master
    assert master.upstream_name == 'refs/remotes/origin/master'