from contextlib import contextmanager
from wsgiref.validate import validator

from paste import open_store

from ..common_wsgi import call_app


def test_open_store(monkeypatch):
    db_path = "test_db_path"
    store = object()

    @contextmanager
    def store_open(path):
        assert path == db_path
        yield store

    @validator
    @open_store
    @validator
    def app(environ, start_response):
        assert "paste.store" in environ
        assert environ["paste.store"] == store
        start_response("200 OK", [("Content-Type", "text/plain")])
        return [b"Hello, World!"]

    monkeypatch.setattr("paste.store.open", store_open)
    response = call_app(app, environ={"PASTE_DB": db_path})
    assert response.status == "200 OK"
    assert response.data == b"Hello, World!"
    assert ("Content-Type", "text/plain") in response.headers