from werkzeug.test import create_environ
from werkzeug.wrappers import Request
from werkzeug.wrappers import Response


def test_wrapper_internals():
    req = Request.from_values(data={"foo": "bar"}, method="POST")
    req._load_form_data()
    assert req.form.to_dict() == {"foo": "bar"}

    # second call does not break
    req._load_form_data()
    assert req.form.to_dict() == {"foo": "bar"}

    # check reprs
    assert repr(req) == "<Request 'http://localhost/' [POST]>"
    resp = Response()
    assert repr(resp) == "<Response 0 bytes [200 OK]>"
    resp.set_data("Hello World!")
    assert repr(resp) == "<Response 12 bytes [200 OK]>"
    resp.response = iter(["Test"])
    assert repr(resp) == "<Response streamed [200 OK]>"

    response = Response(["Hällo Wörld"])
    headers = response.get_wsgi_headers(create_environ())
    assert "Content-Length" in headers

    response = Response(["Hällo Wörld".encode()])
    headers = response.get_wsgi_headers(create_environ())
    assert "Content-Length" in headers