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from __future__ import annotations
from io import BytesIO
from typing import TYPE_CHECKING
from unittest.mock import Mock, call
import pytest
from streamlink.stream.file import FileStream
if TYPE_CHECKING:
from streamlink import Streamlink
class TestFileStream:
@pytest.fixture()
def mock_open(self, monkeypatch: pytest.MonkeyPatch) -> Mock:
mock_open = Mock(return_value=BytesIO(b"foo"))
monkeypatch.setattr("pathlib.Path.open", mock_open)
return mock_open
def test_no_path_no_fileobj(self, session: Streamlink):
with pytest.raises(ValueError, match=r"^path or fileobj must be set$"):
FileStream(session)
def test_open_path(self, session: Streamlink, mock_open: Mock):
stream = FileStream(session, path="/test/path")
streamio = stream.open()
assert mock_open.call_args_list == [call("rb")]
assert streamio.read() == b"foo"
streamio.close()
def test_open_fileobj(self, session: Streamlink, mock_open: Mock):
fileobj = BytesIO(b"bar")
stream = FileStream(session, fileobj=fileobj)
streamio = stream.open()
assert streamio is fileobj
assert mock_open.call_args_list == []
assert streamio.read() == b"bar"
streamio.close()
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