File: test_client_session.py

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python-aiohttp 0.17.2-1~bpo8%2B1
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# -*- coding: utf-8 -*-
"""Tests for aiohttp/client.py"""

import asyncio
import gc
import unittest
from unittest import mock
import sys

import aiohttp
from aiohttp.client import ClientSession
from aiohttp.multidict import MultiDict, CIMultiDict, CIMultiDictProxy
from aiohttp.connector import BaseConnector, TCPConnector
from aiohttp.client_reqrep import ClientRequest, ClientResponse
from http.cookies import SimpleCookie


PY_341 = sys.version_info >= (3, 4, 1)


class TestClientSession(unittest.TestCase):

    maxDiff = None

    def setUp(self):
        self.loop = asyncio.new_event_loop()
        asyncio.set_event_loop(None)
        self.run = self.loop.run_until_complete

    def tearDown(self):
        self.loop.close()

    def make_open_connector(self):
        conn = BaseConnector(loop=self.loop)
        transp = unittest.mock.Mock()
        conn._conns['a'] = [(transp, 'proto', 123)]
        return conn

    def test_init_headers_simple_dict(self):
        session = ClientSession(
            headers={
                "h1": "header1",
                "h2": "header2"
            }, loop=self.loop)
        self.assertEqual(
            set(session._default_headers),
            set([("h1", "header1"),
                 ("h2", "header2")]))
        session.close()

    def test_init_headers_list_of_tuples(self):
        session = ClientSession(
            headers=[("h1", "header1"),
                     ("h2", "header2"),
                     ("h3", "header3")],
            loop=self.loop)
        self.assertEqual(
            set(session._default_headers),
            set([("h1", "header1"),
                 ("h2", "header2"),
                 ("h3", "header3")]))
        session.close()

    def test_init_headers_MultiDict(self):
        session = ClientSession(
            headers=MultiDict(
                [("h1", "header1"),
                 ("h2", "header2"),
                 ("h3", "header3")]),
            loop=self.loop)
        self.assertEqual(
            set(session._default_headers),
            set([("h1", "header1"),
                 ("h2", "header2"),
                 ("h3", "header3")]))
        session.close()

    def test_init_cookies_with_simple_dict(self):
        session = ClientSession(
            cookies={
                "c1": "cookie1",
                "c2": "cookie2"
            }, loop=self.loop)
        self.assertEqual(set(session.cookies), {'c1', 'c2'})
        self.assertEqual(session.cookies['c1'].value, 'cookie1')
        self.assertEqual(session.cookies['c2'].value, 'cookie2')
        session.close()

    def test_init_cookies_with_list_of_tuples(self):
        session = ClientSession(
            cookies=[("c1", "cookie1"),
                     ("c2", "cookie2")],
            loop=self.loop)
        self.assertEqual(set(session.cookies), {'c1', 'c2'})
        self.assertEqual(session.cookies['c1'].value, 'cookie1')
        self.assertEqual(session.cookies['c2'].value, 'cookie2')
        session.close()

    def test_merge_headers(self):
        # Check incoming simple dict
        session = ClientSession(
            headers={
                "h1": "header1",
                "h2": "header2"
            }, loop=self.loop)
        headers = session._prepare_headers({
            "h1": "h1"
        })
        self.assertIsInstance(headers, CIMultiDict)
        self.assertEqual(headers, CIMultiDict([
            ("h1", "h1"),
            ("h2", "header2")
        ]))
        session.close()

    def test_merge_headers_with_multi_dict(self):
        session = ClientSession(
            headers={
                "h1": "header1",
                "h2": "header2"
            }, loop=self.loop)
        headers = session._prepare_headers(MultiDict([("h1", "h1")]))
        self.assertIsInstance(headers, CIMultiDict)
        self.assertEqual(headers, CIMultiDict([
            ("h1", "h1"),
            ("h2", "header2")
        ]))
        session.close()

    def test_merge_headers_with_list_of_tuples(self):
        session = ClientSession(
            headers={
                "h1": "header1",
                "h2": "header2"
            }, loop=self.loop)
        headers = session._prepare_headers([("h1", "h1")])
        self.assertIsInstance(headers, CIMultiDict)
        self.assertEqual(headers, CIMultiDict([
            ("h1", "h1"),
            ("h2", "header2")
        ]))
        session.close()

    def _make_one(self):
        session = ClientSession(loop=self.loop)
        params = dict(
            headers={"Authorization": "Basic ..."},
            max_redirects=2,
            encoding="latin1",
            version=aiohttp.HttpVersion10,
            compress="deflate",
            chunked=True,
            expect100=True,
            read_until_eof=False)
        return session, params

    @mock.patch("aiohttp.client.ClientSession.request")
    def test_http_GET(self, patched):
        session, params = self._make_one()
        self.run(session.get(
            "http://test.example.com",
            params={"x": 1},
            **params))
        self.assertTrue(patched.called, "`ClientSession.request` not called")
        self.assertEqual(
            list(patched.call_args),
            [("GET", "http://test.example.com",),
             dict(
                 params={"x": 1},
                 allow_redirects=True,
                 **params)])
        session.close()

    @mock.patch("aiohttp.client.ClientSession.request")
    def test_http_OPTIONS(self, patched):
        session, params = self._make_one()
        self.run(session.options(
            "http://opt.example.com",
            params={"x": 2},
            **params))
        self.assertTrue(patched.called, "`ClientSession.request` not called")
        self.assertEqual(
            list(patched.call_args),
            [("OPTIONS", "http://opt.example.com",),
             dict(
                params={"x": 2},
                allow_redirects=True,
                **params)])
        session.close()

    @mock.patch("aiohttp.client.ClientSession.request")
    def test_http_HEAD(self, patched):
        session, params = self._make_one()
        self.run(session.head(
            "http://head.example.com",
            params={"x": 2},
            **params))
        self.assertTrue(patched.called, "`ClientSession.request` not called")
        self.assertEqual(
            list(patched.call_args),
            [("HEAD", "http://head.example.com",),
             dict(
                params={"x": 2},
                allow_redirects=False,
                **params)])
        session.close()

    @mock.patch("aiohttp.client.ClientSession.request")
    def test_http_POST(self, patched):
        session, params = self._make_one()
        self.run(session.post(
            "http://post.example.com",
            params={"x": 2},
            data="Some_data",
            files={"x": '1'},
            **params))
        self.assertTrue(patched.called, "`ClientSession.request` not called")
        self.assertEqual(
            list(patched.call_args),
            [("POST", "http://post.example.com",),
             dict(
                params={"x": 2},
                data="Some_data",
                files={"x": '1'},
                **params)])
        session.close()

    @mock.patch("aiohttp.client.ClientSession.request")
    def test_http_PUT(self, patched):
        session, params = self._make_one()
        self.run(session.put(
            "http://put.example.com",
            params={"x": 2},
            data="Some_data",
            files={"x": '1'},
            **params))
        self.assertTrue(patched.called, "`ClientSession.request` not called")
        self.assertEqual(
            list(patched.call_args),
            [("PUT", "http://put.example.com",),
             dict(
                 params={"x": 2},
                 data="Some_data",
                 files={"x": '1'},
                 **params)])
        session.close()

    @mock.patch("aiohttp.client.ClientSession.request")
    def test_http_PATCH(self, patched):
        session, params = self._make_one()
        self.run(session.patch(
            "http://patch.example.com",
            params={"x": 2},
            data="Some_data",
            files={"x": '1'},
            **params))
        self.assertTrue(patched.called, "`ClientSession.request` not called")
        self.assertEqual(
            list(patched.call_args),
            [("PATCH", "http://patch.example.com",),
             dict(
                params={"x": 2},
                data="Some_data",
                files={"x": '1'},
                **params)])
        session.close()

    @mock.patch("aiohttp.client.ClientSession.request")
    def test_http_DELETE(self, patched):
        session, params = self._make_one()
        self.run(session.delete(
            "http://delete.example.com",
            params={"x": 2},
            **params))
        self.assertTrue(patched.called, "`ClientSession.request` not called")
        self.assertEqual(
            list(patched.call_args),
            [("DELETE", "http://delete.example.com",),
             dict(
                params={"x": 2},
                **params)])
        session.close()

    def test_close(self):
        conn = self.make_open_connector()
        session = ClientSession(loop=self.loop, connector=conn)

        session.close()
        self.assertIsNone(session.connector)
        self.assertTrue(conn.closed)

    def test_closed(self):
        session = ClientSession(loop=self.loop)
        self.assertFalse(session.closed)
        session.close()
        self.assertTrue(session.closed)

    def test_connector(self):
        connector = TCPConnector(loop=self.loop)
        session = ClientSession(connector=connector, loop=self.loop)
        self.assertIs(session.connector, connector)
        session.close()

    def test_connector_loop(self):
        loop = asyncio.new_event_loop()
        connector = TCPConnector(loop=loop)
        with self.assertRaisesRegex(
                ValueError,
                "loop argument must agree with connector"):
            ClientSession(connector=connector, loop=self.loop)
        connector.close()
        loop.close()

    def test_cookies_are_readonly(self):
        session = ClientSession(loop=self.loop)
        with self.assertRaises(AttributeError):
            session.cookies = 123
        session.close()

    def test_detach(self):
        session = ClientSession(loop=self.loop)
        conn = session.connector
        self.assertFalse(conn.closed)
        session.detach()
        self.assertIsNone(session.connector)
        self.assertTrue(session.closed)
        self.assertFalse(conn.closed)
        conn.close()

    def test_request_closed_session(self):
        @asyncio.coroutine
        def go():
            session = ClientSession(loop=self.loop)
            session.close()
            with self.assertRaises(RuntimeError):
                yield from session.request('get', '/')

        self.loop.run_until_complete(go())

    def test_close_flag_for_closed_connector(self):
        session = ClientSession(loop=self.loop)
        conn = session.connector
        self.assertFalse(session.closed)
        conn.close()
        self.assertTrue(session.closed)

    def test_double_close(self):
        conn = self.make_open_connector()
        session = ClientSession(loop=self.loop, connector=conn)

        session.close()
        self.assertIsNone(session.connector)
        session.close()
        self.assertTrue(session.closed)
        self.assertTrue(conn.closed)

    @unittest.skipUnless(PY_341, "Requires Python 3.4.1+")
    def test_del(self):
        conn = self.make_open_connector()
        session = ClientSession(loop=self.loop, connector=conn)

        with self.assertWarns(ResourceWarning):
            del session
            gc.collect()

    def test_context_manager(self):
        conn = self.make_open_connector()
        with ClientSession(loop=self.loop, connector=conn) as session:
            pass

        self.assertTrue(session.closed)

    def test_borrow_connector_loop(self):
        conn = self.make_open_connector()
        session = ClientSession(connector=conn)
        self.assertIs(session._loop, self.loop)


class TestCLientRequest(unittest.TestCase):

    def setUp(self):
        self.loop = asyncio.new_event_loop()
        asyncio.set_event_loop(None)
        self.connector = BaseConnector(loop=self.loop)
        self.transport = mock.Mock()
        self.protocol = mock.Mock()

    def tearDown(self):
        self.loop.close()

    def test_custom_req_rep(self):
        @asyncio.coroutine
        def go():
            class CustomResponse(ClientResponse):
                @asyncio.coroutine
                def start(self, connection, read_until_eof=False):
                    self.status = 123
                    self.reason = 'Test OK'
                    self.headers = CIMultiDictProxy(CIMultiDict())
                    self.cookies = SimpleCookie()
                    return

            called = False

            class CustomRequest(ClientRequest):

                def send(self, writer, reader):
                    resp = self.response_class(self.method,
                                               self.url,
                                               self.host,
                                               writer=self._writer,
                                               continue100=self._continue)
                    resp._post_init(self.loop)
                    self.response = resp
                    nonlocal called
                    called = True
                    return resp

            @asyncio.coroutine
            def create_connection(req):
                self.assertIsInstance(req, CustomRequest)
                return self.transport, self.protocol
            self.connector._create_connection = create_connection

            resp = yield from aiohttp.request('get',
                                              'http://example.com/path/to',
                                              request_class=CustomRequest,
                                              response_class=CustomResponse,
                                              connector=self.connector,
                                              loop=self.loop)
            self.assertIsInstance(resp, CustomResponse)
            self.assertTrue(called)
        self.loop.run_until_complete(go())