def test_telegraf_migrate_dst_exists_not_empty(tmp_path):
"""
Migration fails if the target directory contains files.
"""
src = tmp_path / 'src'
dst = tmp_path / 'dst'
src.mkdir()
src_file = src / 'src_file'
src_file.touch()
dst.mkdir()
dst_file = dst / 'dst_file'
dst_file.touch()
with pytest.raises(RuntimeError):
cli.migrate_containers(src, dst)
assert src.exists()
assert src_file.exists()
assert dst.exists()
assert dst_file.exists()
def test_telegraf_no_legacy(tmp_path):
"""
When there is no legacy directory `migrate_containers` does not
create a new directory and returns False.
"""
src = tmp_path / 'src'
dst = tmp_path / 'dst'
assert cli.migrate_containers(src, dst) is False
assert not src.exists()
assert not dst.exists()
def test_telegraf_migrate_empty(tmp_path):
"""
When the legacy directory exists, `migrate_containers` moves the
directory and returns True.
"""
src = tmp_path / 'src'
dst = tmp_path / 'dst'
src.mkdir()
assert cli.migrate_containers(src, dst) is True
assert not src.exists()
assert dst.exists()
assert not any(dst.iterdir())
def test_telegraf_migrate_not_empty(tmp_path):
"""
Migration moves legacy files.
"""
file_contents = b'1234'
src = tmp_path / 'src'
dst = tmp_path / 'dst'
src.mkdir()
file = src / 'file'
file.write_bytes(file_contents)
assert cli.migrate_containers(src, dst) is True
assert not src.exists()
assert dst.exists()
file = dst / 'file'
assert list(dst.iterdir()) == [file]
assert file.read_bytes() == file_contents
def test_telegraf_migrate_dst_exists_empty(tmp_path):
"""
Migration works if the target directory exists but is empty.
"""
file_contents = b'1234'
src = tmp_path / 'src'
dst = tmp_path / 'dst'
src.mkdir()
file = src / 'file'
file.write_bytes(file_contents)
dst.mkdir()
assert cli.migrate_containers(src, dst) is True
assert not src.exists()
assert dst.exists()
file = dst / 'file'
assert list(dst.iterdir()) == [file]
assert file.read_bytes() == file_contents