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import os
import pytest

from buildstream.plugintestutils import cli_integration as cli


pytestmark = pytest.mark.integration


DATA_DIR = os.path.join(
    os.path.dirname(os.path.realpath(__file__)),
    "project"
)


# Test that staging a file inside a directory symlink fails.
#
# Regression test for https://gitlab.com/BuildStream/buildstream/issues/270
# noinspection PyUnusedLocal
@pytest.mark.datafiles(DATA_DIR)
def test_compose_symlinks(cli, tmpdir, datafiles):
    project = os.path.join(datafiles.dirname, datafiles.basename)

    # Symlinks do not survive being placed in a source distribution
    # ('setup.py sdist'), so we have to create the one we need here.
    project_files = os.path.join(project, 'files', 'compose-symlinks', 'base')
    symlink_file = os.path.join(project_files, 'sbin')
    os.symlink(os.path.join('usr', 'sbin'), symlink_file, target_is_directory=True)

    result = cli.run(project=project, args=['build', 'compose-symlinks/compose.bst'])

    assert result.exit_code == -1
    assert 'Destination is a symlink, not a directory: /sbin' in result.stderr