from unittest import TestCase

from scrapy.http import Request, Response
from scrapy.http.cookies import WrappedRequest, WrappedResponse
from scrapy.utils.httpobj import urlparse_cached


class WrappedRequestTest(TestCase):
    def setUp(self):
        self.request = Request(
            "http://www.example.com/page.html", headers={"Content-Type": "text/html"}
        )
        self.wrapped = WrappedRequest(self.request)

    def test_get_full_url(self):
        self.assertEqual(self.wrapped.get_full_url(), self.request.url)
        self.assertEqual(self.wrapped.full_url, self.request.url)

    def test_get_host(self):
        self.assertEqual(self.wrapped.get_host(), urlparse_cached(self.request).netloc)
        self.assertEqual(self.wrapped.host, urlparse_cached(self.request).netloc)

    def test_get_type(self):
        self.assertEqual(self.wrapped.get_type(), urlparse_cached(self.request).scheme)
        self.assertEqual(self.wrapped.type, urlparse_cached(self.request).scheme)

    def test_is_unverifiable(self):
        self.assertFalse(self.wrapped.is_unverifiable())
        self.assertFalse(self.wrapped.unverifiable)

    def test_is_unverifiable2(self):
        self.request.meta["is_unverifiable"] = True
        self.assertTrue(self.wrapped.is_unverifiable())
        self.assertTrue(self.wrapped.unverifiable)

    def test_get_origin_req_host(self):
        self.assertEqual(self.wrapped.origin_req_host, "www.example.com")

    def test_has_header(self):
        self.assertTrue(self.wrapped.has_header("content-type"))
        self.assertFalse(self.wrapped.has_header("xxxxx"))

    def test_get_header(self):
        self.assertEqual(self.wrapped.get_header("content-type"), "text/html")
        self.assertEqual(self.wrapped.get_header("xxxxx", "def"), "def")
        self.assertEqual(self.wrapped.get_header("xxxxx"), None)
        wrapped = WrappedRequest(
            Request(
                "http://www.example.com/page.html", headers={"empty-binary-header": b""}
            )
        )
        self.assertEqual(wrapped.get_header("empty-binary-header"), "")

    def test_header_items(self):
        self.assertEqual(self.wrapped.header_items(), [("Content-Type", ["text/html"])])

    def test_add_unredirected_header(self):
        self.wrapped.add_unredirected_header("hello", "world")
        self.assertEqual(self.request.headers["hello"], b"world")


class WrappedResponseTest(TestCase):
    def setUp(self):
        self.response = Response(
            "http://www.example.com/page.html", headers={"Content-TYpe": "text/html"}
        )
        self.wrapped = WrappedResponse(self.response)

    def test_info(self):
        self.assertIs(self.wrapped.info(), self.wrapped)

    def test_get_all(self):
        # get_all result must be native string
        self.assertEqual(self.wrapped.get_all("content-type"), ["text/html"])