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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 07:54:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 07:54:10 +0000
commit51b156e61c2761f69bb4ca39e115077705083406 (patch)
tree25bcc4265216ca429a2275c577fc631098a181c0 /test/test_networking.py
parentReleasing progress-linux version 2024.03.10-1~progress7.99u1. (diff)
downloadyt-dlp-51b156e61c2761f69bb4ca39e115077705083406.tar.xz
yt-dlp-51b156e61c2761f69bb4ca39e115077705083406.zip
Merging upstream version 2024.04.09.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--test/test_networking.py632
1 files changed, 505 insertions, 127 deletions
diff --git a/test/test_networking.py b/test/test_networking.py
index 628f1f1..b50f70d 100644
--- a/test/test_networking.py
+++ b/test/test_networking.py
@@ -27,9 +27,10 @@ import zlib
from email.message import Message
from http.cookiejar import CookieJar
+from test.conftest import validate_and_send
from test.helper import FakeYDL, http_server_port, verify_address_availability
from yt_dlp.cookies import YoutubeDLCookieJar
-from yt_dlp.dependencies import brotli, requests, urllib3
+from yt_dlp.dependencies import brotli, curl_cffi, requests, urllib3
from yt_dlp.networking import (
HEADRequest,
PUTRequest,
@@ -50,10 +51,13 @@ from yt_dlp.networking.exceptions import (
TransportError,
UnsupportedRequest,
)
+from yt_dlp.networking.impersonate import (
+ ImpersonateRequestHandler,
+ ImpersonateTarget,
+)
+from yt_dlp.utils import YoutubeDLError
from yt_dlp.utils._utils import _YDLLogger as FakeLogger
-from yt_dlp.utils.networking import HTTPHeaderDict
-
-from test.conftest import validate_and_send
+from yt_dlp.utils.networking import HTTPHeaderDict, std_headers
TEST_DIR = os.path.dirname(os.path.abspath(__file__))
@@ -75,6 +79,7 @@ def _build_proxy_handler(name):
class HTTPTestRequestHandler(http.server.BaseHTTPRequestHandler):
protocol_version = 'HTTP/1.1'
+ default_request_version = 'HTTP/1.1'
def log_message(self, format, *args):
pass
@@ -112,6 +117,8 @@ class HTTPTestRequestHandler(http.server.BaseHTTPRequestHandler):
def _read_data(self):
if 'Content-Length' in self.headers:
return self.rfile.read(int(self.headers['Content-Length']))
+ else:
+ return b''
def do_POST(self):
data = self._read_data() + str(self.headers).encode()
@@ -195,7 +202,8 @@ class HTTPTestRequestHandler(http.server.BaseHTTPRequestHandler):
self._headers()
elif self.path.startswith('/308-to-headers'):
self.send_response(308)
- self.send_header('Location', '/headers')
+ # redirect to "localhost" for testing cookie redirection handling
+ self.send_header('Location', f'http://localhost:{self.connection.getsockname()[1]}/headers')
self.send_header('Content-Length', '0')
self.end_headers()
elif self.path == '/trailing_garbage':
@@ -310,7 +318,7 @@ class TestRequestHandlerBase:
class TestHTTPRequestHandler(TestRequestHandlerBase):
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_verify_cert(self, handler):
with handler() as rh:
with pytest.raises(CertificateVerifyError):
@@ -321,7 +329,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert r.status == 200
r.close()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_ssl_error(self, handler):
# HTTPS server with too old TLS version
# XXX: is there a better way to test this than to create a new server?
@@ -335,11 +343,11 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
https_server_thread.start()
with handler(verify=False) as rh:
- with pytest.raises(SSLError, match=r'ssl(?:v3|/tls) alert handshake failure') as exc_info:
+ with pytest.raises(SSLError, match=r'(?i)ssl(?:v3|/tls).alert.handshake.failure') as exc_info:
validate_and_send(rh, Request(f'https://127.0.0.1:{https_port}/headers'))
assert not issubclass(exc_info.type, CertificateVerifyError)
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_percent_encode(self, handler):
with handler() as rh:
# Unicode characters should be encoded with uppercase percent-encoding
@@ -351,7 +359,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res.status == 200
res.close()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
@pytest.mark.parametrize('path', [
'/a/b/./../../headers',
'/redirect_dotsegments',
@@ -367,6 +375,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res.url == f'http://127.0.0.1:{self.http_port}/headers'
res.close()
+ # Not supported by CurlCFFI (non-standard)
@pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
def test_unicode_path_redirection(self, handler):
with handler() as rh:
@@ -374,7 +383,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert r.url == f'http://127.0.0.1:{self.http_port}/%E4%B8%AD%E6%96%87.html'
r.close()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_raise_http_error(self, handler):
with handler() as rh:
for bad_status in (400, 500, 599, 302):
@@ -384,7 +393,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
# Should not raise an error
validate_and_send(rh, Request('http://127.0.0.1:%d/gen_200' % self.http_port)).close()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_response_url(self, handler):
with handler() as rh:
# Response url should be that of the last url in redirect chain
@@ -395,62 +404,50 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res2.url == f'http://127.0.0.1:{self.http_port}/gen_200'
res2.close()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
- def test_redirect(self, handler):
+ # Covers some basic cases we expect some level of consistency between request handlers for
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
+ @pytest.mark.parametrize('redirect_status,method,expected', [
+ # A 303 must either use GET or HEAD for subsequent request
+ (303, 'POST', ('', 'GET', False)),
+ (303, 'HEAD', ('', 'HEAD', False)),
+
+ # 301 and 302 turn POST only into a GET
+ (301, 'POST', ('', 'GET', False)),
+ (301, 'HEAD', ('', 'HEAD', False)),
+ (302, 'POST', ('', 'GET', False)),
+ (302, 'HEAD', ('', 'HEAD', False)),
+
+ # 307 and 308 should not change method
+ (307, 'POST', ('testdata', 'POST', True)),
+ (308, 'POST', ('testdata', 'POST', True)),
+ (307, 'HEAD', ('', 'HEAD', False)),
+ (308, 'HEAD', ('', 'HEAD', False)),
+ ])
+ def test_redirect(self, handler, redirect_status, method, expected):
with handler() as rh:
- def do_req(redirect_status, method, assert_no_content=False):
- data = b'testdata' if method in ('POST', 'PUT') else None
- res = validate_and_send(
- rh, Request(f'http://127.0.0.1:{self.http_port}/redirect_{redirect_status}', method=method, data=data))
-
- headers = b''
- data_sent = b''
- if data is not None:
- data_sent += res.read(len(data))
- if data_sent != data:
- headers += data_sent
- data_sent = b''
-
- headers += res.read()
-
- if assert_no_content or data is None:
- assert b'Content-Type' not in headers
- assert b'Content-Length' not in headers
- else:
- assert b'Content-Type' in headers
- assert b'Content-Length' in headers
-
- return data_sent.decode(), res.headers.get('method', '')
-
- # A 303 must either use GET or HEAD for subsequent request
- assert do_req(303, 'POST', True) == ('', 'GET')
- assert do_req(303, 'HEAD') == ('', 'HEAD')
-
- assert do_req(303, 'PUT', True) == ('', 'GET')
-
- # 301 and 302 turn POST only into a GET
- assert do_req(301, 'POST', True) == ('', 'GET')
- assert do_req(301, 'HEAD') == ('', 'HEAD')
- assert do_req(302, 'POST', True) == ('', 'GET')
- assert do_req(302, 'HEAD') == ('', 'HEAD')
-
- assert do_req(301, 'PUT') == ('testdata', 'PUT')
- assert do_req(302, 'PUT') == ('testdata', 'PUT')
+ data = b'testdata' if method == 'POST' else None
+ headers = {}
+ if data is not None:
+ headers['Content-Type'] = 'application/test'
+ res = validate_and_send(
+ rh, Request(f'http://127.0.0.1:{self.http_port}/redirect_{redirect_status}', method=method, data=data,
+ headers=headers))
- # 307 and 308 should not change method
- for m in ('POST', 'PUT'):
- assert do_req(307, m) == ('testdata', m)
- assert do_req(308, m) == ('testdata', m)
+ headers = b''
+ data_recv = b''
+ if data is not None:
+ data_recv += res.read(len(data))
+ if data_recv != data:
+ headers += data_recv
+ data_recv = b''
- assert do_req(307, 'HEAD') == ('', 'HEAD')
- assert do_req(308, 'HEAD') == ('', 'HEAD')
+ headers += res.read()
- # These should not redirect and instead raise an HTTPError
- for code in (300, 304, 305, 306):
- with pytest.raises(HTTPError):
- do_req(code, 'GET')
+ assert expected[0] == data_recv.decode()
+ assert expected[1] == res.headers.get('method')
+ assert expected[2] == ('content-length' in headers.decode().lower())
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_request_cookie_header(self, handler):
# We should accept a Cookie header being passed as in normal headers and handle it appropriately.
with handler() as rh:
@@ -459,16 +456,17 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
rh, Request(
f'http://127.0.0.1:{self.http_port}/headers',
headers={'Cookie': 'test=test'})).read().decode()
- assert 'Cookie: test=test' in res
+ assert 'cookie: test=test' in res.lower()
# Specified Cookie header should be removed on any redirect
res = validate_and_send(
rh, Request(
f'http://127.0.0.1:{self.http_port}/308-to-headers',
- headers={'Cookie': 'test=test'})).read().decode()
- assert 'Cookie: test=test' not in res
+ headers={'Cookie': 'test=test2'})).read().decode()
+ assert 'cookie: test=test2' not in res.lower()
# Specified Cookie header should override global cookiejar for that request
+ # Whether cookies from the cookiejar is applied on the redirect is considered undefined for now
cookiejar = YoutubeDLCookieJar()
cookiejar.set_cookie(http.cookiejar.Cookie(
version=0, name='test', value='ytdlp', port=None, port_specified=False,
@@ -478,23 +476,23 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
with handler(cookiejar=cookiejar) as rh:
data = validate_and_send(
- rh, Request(f'http://127.0.0.1:{self.http_port}/headers', headers={'cookie': 'test=test'})).read()
- assert b'Cookie: test=ytdlp' not in data
- assert b'Cookie: test=test' in data
+ rh, Request(f'http://127.0.0.1:{self.http_port}/headers', headers={'cookie': 'test=test3'})).read()
+ assert b'cookie: test=ytdlp' not in data.lower()
+ assert b'cookie: test=test3' in data.lower()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_redirect_loop(self, handler):
with handler() as rh:
with pytest.raises(HTTPError, match='redirect loop'):
validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/redirect_loop'))
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_incompleteread(self, handler):
with handler(timeout=2) as rh:
- with pytest.raises(IncompleteRead):
+ with pytest.raises(IncompleteRead, match='13 bytes read, 234221 more expected'):
validate_and_send(rh, Request('http://127.0.0.1:%d/incompleteread' % self.http_port)).read()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_cookies(self, handler):
cookiejar = YoutubeDLCookieJar()
cookiejar.set_cookie(http.cookiejar.Cookie(
@@ -503,47 +501,66 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
with handler(cookiejar=cookiejar) as rh:
data = validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/headers')).read()
- assert b'Cookie: test=ytdlp' in data
+ assert b'cookie: test=ytdlp' in data.lower()
# Per request
with handler() as rh:
data = validate_and_send(
rh, Request(f'http://127.0.0.1:{self.http_port}/headers', extensions={'cookiejar': cookiejar})).read()
- assert b'Cookie: test=ytdlp' in data
+ assert b'cookie: test=ytdlp' in data.lower()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_headers(self, handler):
with handler(headers=HTTPHeaderDict({'test1': 'test', 'test2': 'test2'})) as rh:
# Global Headers
- data = validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/headers')).read()
- assert b'Test1: test' in data
+ data = validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/headers')).read().lower()
+ assert b'test1: test' in data
# Per request headers, merged with global
data = validate_and_send(rh, Request(
- f'http://127.0.0.1:{self.http_port}/headers', headers={'test2': 'changed', 'test3': 'test3'})).read()
- assert b'Test1: test' in data
- assert b'Test2: changed' in data
- assert b'Test2: test2' not in data
- assert b'Test3: test3' in data
-
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
- def test_timeout(self, handler):
+ f'http://127.0.0.1:{self.http_port}/headers', headers={'test2': 'changed', 'test3': 'test3'})).read().lower()
+ assert b'test1: test' in data
+ assert b'test2: changed' in data
+ assert b'test2: test2' not in data
+ assert b'test3: test3' in data
+
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
+ def test_read_timeout(self, handler):
with handler() as rh:
# Default timeout is 20 seconds, so this should go through
validate_and_send(
- rh, Request(f'http://127.0.0.1:{self.http_port}/timeout_3'))
+ rh, Request(f'http://127.0.0.1:{self.http_port}/timeout_1'))
- with handler(timeout=0.5) as rh:
+ with handler(timeout=0.1) as rh:
with pytest.raises(TransportError):
validate_and_send(
- rh, Request(f'http://127.0.0.1:{self.http_port}/timeout_1'))
+ rh, Request(f'http://127.0.0.1:{self.http_port}/timeout_5'))
# Per request timeout, should override handler timeout
validate_and_send(
rh, Request(f'http://127.0.0.1:{self.http_port}/timeout_1', extensions={'timeout': 4}))
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
+ def test_connect_timeout(self, handler):
+ # nothing should be listening on this port
+ connect_timeout_url = 'http://10.255.255.255'
+ with handler(timeout=0.01) as rh:
+ now = time.time()
+ with pytest.raises(TransportError):
+ validate_and_send(
+ rh, Request(connect_timeout_url))
+ assert 0.01 <= time.time() - now < 20
+
+ with handler() as rh:
+ with pytest.raises(TransportError):
+ # Per request timeout, should override handler timeout
+ now = time.time()
+ validate_and_send(
+ rh, Request(connect_timeout_url, extensions={'timeout': 0.01}))
+ assert 0.01 <= time.time() - now < 20
+
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_source_address(self, handler):
source_address = f'127.0.0.{random.randint(5, 255)}'
# on some systems these loopback addresses we need for testing may not be available
@@ -554,6 +571,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
rh, Request(f'http://127.0.0.1:{self.http_port}/source_address')).read().decode()
assert source_address == data
+ # Not supported by CurlCFFI
@pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
def test_gzip_trailing_garbage(self, handler):
with handler() as rh:
@@ -571,7 +589,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res.headers.get('Content-Encoding') == 'br'
assert res.read() == b'<html><video src="/vid.mp4" /></html>'
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_deflate(self, handler):
with handler() as rh:
res = validate_and_send(
@@ -581,7 +599,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res.headers.get('Content-Encoding') == 'deflate'
assert res.read() == b'<html><video src="/vid.mp4" /></html>'
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_gzip(self, handler):
with handler() as rh:
res = validate_and_send(
@@ -591,7 +609,7 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res.headers.get('Content-Encoding') == 'gzip'
assert res.read() == b'<html><video src="/vid.mp4" /></html>'
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_multiple_encodings(self, handler):
with handler() as rh:
for pair in ('gzip,deflate', 'deflate, gzip', 'gzip, gzip', 'deflate, deflate'):
@@ -602,17 +620,18 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res.headers.get('Content-Encoding') == pair
assert res.read() == b'<html><video src="/vid.mp4" /></html>'
+ # Not supported by curl_cffi
@pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
def test_unsupported_encoding(self, handler):
with handler() as rh:
res = validate_and_send(
rh, Request(
f'http://127.0.0.1:{self.http_port}/content-encoding',
- headers={'ytdl-encoding': 'unsupported'}))
+ headers={'ytdl-encoding': 'unsupported', 'Accept-Encoding': '*'}))
assert res.headers.get('Content-Encoding') == 'unsupported'
assert res.read() == b'raw'
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_read(self, handler):
with handler() as rh:
res = validate_and_send(
@@ -620,9 +639,12 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
assert res.readable()
assert res.read(1) == b'H'
assert res.read(3) == b'ost'
+ assert res.read().decode().endswith('\n\n')
+ assert res.read() == b''
class TestHTTPProxy(TestRequestHandlerBase):
+ # Note: this only tests http urls over non-CONNECT proxy
@classmethod
def setup_class(cls):
super().setup_class()
@@ -642,7 +664,7 @@ class TestHTTPProxy(TestRequestHandlerBase):
cls.geo_proxy_thread.daemon = True
cls.geo_proxy_thread.start()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_http_proxy(self, handler):
http_proxy = f'http://127.0.0.1:{self.proxy_port}'
geo_proxy = f'http://127.0.0.1:{self.geo_port}'
@@ -668,7 +690,7 @@ class TestHTTPProxy(TestRequestHandlerBase):
assert res != f'normal: {real_url}'
assert 'Accept' in res
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_noproxy(self, handler):
with handler(proxies={'proxy': f'http://127.0.0.1:{self.proxy_port}'}) as rh:
# NO_PROXY
@@ -678,7 +700,7 @@ class TestHTTPProxy(TestRequestHandlerBase):
'utf-8')
assert 'Accept' in nop_response
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_allproxy(self, handler):
url = 'http://foo.com/bar'
with handler() as rh:
@@ -686,7 +708,7 @@ class TestHTTPProxy(TestRequestHandlerBase):
'utf-8')
assert response == f'normal: {url}'
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_http_proxy_with_idn(self, handler):
with handler(proxies={
'http': f'http://127.0.0.1:{self.proxy_port}',
@@ -698,7 +720,6 @@ class TestHTTPProxy(TestRequestHandlerBase):
class TestClientCertificate:
-
@classmethod
def setup_class(cls):
certfn = os.path.join(TEST_DIR, 'testcert.pem')
@@ -724,27 +745,27 @@ class TestClientCertificate:
) as rh:
validate_and_send(rh, Request(f'https://127.0.0.1:{self.port}/video.html')).read().decode()
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_certificate_combined_nopass(self, handler):
self._run_test(handler, client_cert={
'client_certificate': os.path.join(self.certdir, 'clientwithkey.crt'),
})
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_certificate_nocombined_nopass(self, handler):
self._run_test(handler, client_cert={
'client_certificate': os.path.join(self.certdir, 'client.crt'),
'client_certificate_key': os.path.join(self.certdir, 'client.key'),
})
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_certificate_combined_pass(self, handler):
self._run_test(handler, client_cert={
'client_certificate': os.path.join(self.certdir, 'clientwithencryptedkey.crt'),
'client_certificate_password': 'foobar',
})
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_certificate_nocombined_pass(self, handler):
self._run_test(handler, client_cert={
'client_certificate': os.path.join(self.certdir, 'client.crt'),
@@ -753,6 +774,18 @@ class TestClientCertificate:
})
+@pytest.mark.parametrize('handler', ['CurlCFFI'], indirect=True)
+class TestHTTPImpersonateRequestHandler(TestRequestHandlerBase):
+ def test_supported_impersonate_targets(self, handler):
+ with handler(headers=std_headers) as rh:
+ # note: this assumes the impersonate request handler supports the impersonate extension
+ for target in rh.supported_targets:
+ res = validate_and_send(rh, Request(
+ f'http://127.0.0.1:{self.http_port}/headers', extensions={'impersonate': target}))
+ assert res.status == 200
+ assert std_headers['user-agent'].lower() not in res.read().decode().lower()
+
+
class TestRequestHandlerMisc:
"""Misc generic tests for request handlers, not related to request or validation testing"""
@pytest.mark.parametrize('handler,logger_name', [
@@ -931,6 +964,172 @@ class TestRequestsRequestHandler(TestRequestHandlerBase):
assert called
+@pytest.mark.parametrize('handler', ['CurlCFFI'], indirect=True)
+class TestCurlCFFIRequestHandler(TestRequestHandlerBase):
+
+ @pytest.mark.parametrize('params,extensions', [
+ ({}, {'impersonate': ImpersonateTarget('chrome')}),
+ ({'impersonate': ImpersonateTarget('chrome', '110')}, {}),
+ ({'impersonate': ImpersonateTarget('chrome', '99')}, {'impersonate': ImpersonateTarget('chrome', '110')}),
+ ])
+ def test_impersonate(self, handler, params, extensions):
+ with handler(headers=std_headers, **params) as rh:
+ res = validate_and_send(
+ rh, Request(f'http://127.0.0.1:{self.http_port}/headers', extensions=extensions)).read().decode()
+ assert 'sec-ch-ua: "Chromium";v="110"' in res
+ # Check that user agent is added over ours
+ assert 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36' in res
+
+ def test_headers(self, handler):
+ with handler(headers=std_headers) as rh:
+ # Ensure curl-impersonate overrides our standard headers (usually added
+ res = validate_and_send(
+ rh, Request(f'http://127.0.0.1:{self.http_port}/headers', extensions={
+ 'impersonate': ImpersonateTarget('safari')}, headers={'x-custom': 'test', 'sec-fetch-mode': 'custom'})).read().decode().lower()
+
+ assert std_headers['user-agent'].lower() not in res
+ assert std_headers['accept-language'].lower() not in res
+ assert std_headers['sec-fetch-mode'].lower() not in res
+ # other than UA, custom headers that differ from std_headers should be kept
+ assert 'sec-fetch-mode: custom' in res
+ assert 'x-custom: test' in res
+ # but when not impersonating don't remove std_headers
+ res = validate_and_send(
+ rh, Request(f'http://127.0.0.1:{self.http_port}/headers', headers={'x-custom': 'test'})).read().decode().lower()
+ # std_headers should be present
+ for k, v in std_headers.items():
+ assert f'{k}: {v}'.lower() in res
+
+ @pytest.mark.parametrize('raised,expected,match', [
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.PARTIAL_FILE), IncompleteRead, None),
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.OPERATION_TIMEDOUT), TransportError, None),
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.RECV_ERROR), TransportError, None),
+ ])
+ def test_response_error_mapping(self, handler, monkeypatch, raised, expected, match):
+ import curl_cffi.requests
+
+ from yt_dlp.networking._curlcffi import CurlCFFIResponseAdapter
+ curl_res = curl_cffi.requests.Response()
+ res = CurlCFFIResponseAdapter(curl_res)
+
+ def mock_read(*args, **kwargs):
+ try:
+ raise raised()
+ except Exception as e:
+ e.response = curl_res
+ raise
+ monkeypatch.setattr(res.fp, 'read', mock_read)
+
+ with pytest.raises(expected, match=match) as exc_info:
+ res.read()
+
+ assert exc_info.type is expected
+
+ @pytest.mark.parametrize('raised,expected,match', [
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.OPERATION_TIMEDOUT), TransportError, None),
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.PEER_FAILED_VERIFICATION), CertificateVerifyError, None),
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.SSL_CONNECT_ERROR), SSLError, None),
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.TOO_MANY_REDIRECTS), HTTPError, None),
+ (lambda: curl_cffi.requests.errors.RequestsError(
+ '', code=curl_cffi.const.CurlECode.PROXY), ProxyError, None),
+ ])
+ def test_request_error_mapping(self, handler, monkeypatch, raised, expected, match):
+ import curl_cffi.requests
+ curl_res = curl_cffi.requests.Response()
+ curl_res.status_code = 301
+
+ with handler() as rh:
+ original_get_instance = rh._get_instance
+
+ def mock_get_instance(*args, **kwargs):
+ instance = original_get_instance(*args, **kwargs)
+
+ def request(*_, **__):
+ try:
+ raise raised()
+ except Exception as e:
+ e.response = curl_res
+ raise
+ monkeypatch.setattr(instance, 'request', request)
+ return instance
+
+ monkeypatch.setattr(rh, '_get_instance', mock_get_instance)
+
+ with pytest.raises(expected) as exc_info:
+ rh.send(Request('http://fake'))
+
+ assert exc_info.type is expected
+
+ def test_response_reader(self, handler):
+ class FakeResponse:
+ def __init__(self, raise_error=False):
+ self.raise_error = raise_error
+ self.closed = False
+
+ def iter_content(self):
+ yield b'foo'
+ yield b'bar'
+ yield b'z'
+ if self.raise_error:
+ raise Exception('test')
+
+ def close(self):
+ self.closed = True
+
+ from yt_dlp.networking._curlcffi import CurlCFFIResponseReader
+
+ res = CurlCFFIResponseReader(FakeResponse())
+ assert res.readable
+ assert res.bytes_read == 0
+ assert res.read(1) == b'f'
+ assert res.bytes_read == 3
+ assert res._buffer == b'oo'
+
+ assert res.read(2) == b'oo'
+ assert res.bytes_read == 3
+ assert res._buffer == b''
+
+ assert res.read(2) == b'ba'
+ assert res.bytes_read == 6
+ assert res._buffer == b'r'
+
+ assert res.read(3) == b'rz'
+ assert res.bytes_read == 7
+ assert res._buffer == b''
+ assert res.closed
+ assert res._response.closed
+
+ # should handle no size param
+ res2 = CurlCFFIResponseReader(FakeResponse())
+ assert res2.read() == b'foobarz'
+ assert res2.bytes_read == 7
+ assert res2._buffer == b''
+ assert res2.closed
+
+ # should close on an exception
+ res3 = CurlCFFIResponseReader(FakeResponse(raise_error=True))
+ with pytest.raises(Exception, match='test'):
+ res3.read()
+ assert res3._buffer == b''
+ assert res3.bytes_read == 7
+ assert res3.closed
+
+ # buffer should be cleared on close
+ res4 = CurlCFFIResponseReader(FakeResponse())
+ res4.read(2)
+ assert res4._buffer == b'o'
+ res4.close()
+ assert res4.closed
+ assert res4._buffer == b''
+
+
def run_validation(handler, error, req, **handler_kwargs):
with handler(**handler_kwargs) as rh:
if error:
@@ -975,6 +1174,10 @@ class TestRequestHandlerValidation:
('ws', False, {}),
('wss', False, {}),
]),
+ ('CurlCFFI', [
+ ('http', False, {}),
+ ('https', False, {}),
+ ]),
(NoCheckRH, [('http', False, {})]),
(ValidationRH, [('http', UnsupportedRequest, {})])
]
@@ -998,6 +1201,14 @@ class TestRequestHandlerValidation:
('socks5', False),
('socks5h', False),
]),
+ ('CurlCFFI', 'http', [
+ ('http', False),
+ ('https', False),
+ ('socks4', False),
+ ('socks4a', False),
+ ('socks5', False),
+ ('socks5h', False),
+ ]),
(NoCheckRH, 'http', [('http', False)]),
(HTTPSupportedRH, 'http', [('http', UnsupportedRequest)]),
('Websockets', 'ws', [('http', UnsupportedRequest)]),
@@ -1015,6 +1226,10 @@ class TestRequestHandlerValidation:
('all', False),
('unrelated', False),
]),
+ ('CurlCFFI', [
+ ('all', False),
+ ('unrelated', False),
+ ]),
(NoCheckRH, [('all', False)]),
(HTTPSupportedRH, [('all', UnsupportedRequest)]),
(HTTPSupportedRH, [('no', UnsupportedRequest)]),
@@ -1036,6 +1251,19 @@ class TestRequestHandlerValidation:
({'timeout': 'notatimeout'}, AssertionError),
({'unsupported': 'value'}, UnsupportedRequest),
]),
+ ('CurlCFFI', 'http', [
+ ({'cookiejar': 'notacookiejar'}, AssertionError),
+ ({'cookiejar': YoutubeDLCookieJar()}, False),
+ ({'timeout': 1}, False),
+ ({'timeout': 'notatimeout'}, AssertionError),
+ ({'unsupported': 'value'}, UnsupportedRequest),
+ ({'impersonate': ImpersonateTarget('badtarget', None, None, None)}, UnsupportedRequest),
+ ({'impersonate': 123}, AssertionError),
+ ({'impersonate': ImpersonateTarget('chrome', None, None, None)}, False),
+ ({'impersonate': ImpersonateTarget(None, None, None, None)}, False),
+ ({'impersonate': ImpersonateTarget()}, False),
+ ({'impersonate': 'chrome'}, AssertionError)
+ ]),
(NoCheckRH, 'http', [
({'cookiejar': 'notacookiejar'}, False),
({'somerandom': 'test'}, False), # but any extension is allowed through
@@ -1055,7 +1283,7 @@ class TestRequestHandlerValidation:
def test_url_scheme(self, handler, scheme, fail, handler_kwargs):
run_validation(handler, fail, Request(f'{scheme}://'), **(handler_kwargs or {}))
- @pytest.mark.parametrize('handler,fail', [('Urllib', False), ('Requests', False)], indirect=['handler'])
+ @pytest.mark.parametrize('handler,fail', [('Urllib', False), ('Requests', False), ('CurlCFFI', False)], indirect=['handler'])
def test_no_proxy(self, handler, fail):
run_validation(handler, fail, Request('http://', proxies={'no': '127.0.0.1,github.com'}))
run_validation(handler, fail, Request('http://'), proxies={'no': '127.0.0.1,github.com'})
@@ -1078,13 +1306,13 @@ class TestRequestHandlerValidation:
run_validation(handler, fail, Request(f'{req_scheme}://', proxies={req_scheme: f'{scheme}://example.com'}))
run_validation(handler, fail, Request(f'{req_scheme}://'), proxies={req_scheme: f'{scheme}://example.com'})
- @pytest.mark.parametrize('handler', ['Urllib', HTTPSupportedRH, 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', HTTPSupportedRH, 'Requests', 'CurlCFFI'], indirect=True)
def test_empty_proxy(self, handler):
run_validation(handler, False, Request('http://', proxies={'http': None}))
run_validation(handler, False, Request('http://'), proxies={'http': None})
@pytest.mark.parametrize('proxy_url', ['//example.com', 'example.com', '127.0.0.1', '/a/b/c'])
- @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+ @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
def test_invalid_proxy_url(self, handler, proxy_url):
run_validation(handler, UnsupportedRequest, Request('http://', proxies={'http': proxy_url}))
@@ -1113,6 +1341,10 @@ class FakeResponse(Response):
class FakeRH(RequestHandler):
+ def __init__(self, *args, **params):
+ self.params = params
+ super().__init__(*args, **params)
+
def _validate(self, request):
return
@@ -1271,15 +1503,10 @@ class TestYoutubeDLNetworking:
('', {'all': '__noproxy__'}),
(None, {'http': 'http://127.0.0.1:8081', 'https': 'http://127.0.0.1:8081'}) # env, set https
])
- def test_proxy(self, proxy, expected):
- old_http_proxy = os.environ.get('HTTP_PROXY')
- try:
- os.environ['HTTP_PROXY'] = 'http://127.0.0.1:8081' # ensure that provided proxies override env
- with FakeYDL({'proxy': proxy}) as ydl:
- assert ydl.proxies == expected
- finally:
- if old_http_proxy:
- os.environ['HTTP_PROXY'] = old_http_proxy
+ def test_proxy(self, proxy, expected, monkeypatch):
+ monkeypatch.setenv('HTTP_PROXY', 'http://127.0.0.1:8081')
+ with FakeYDL({'proxy': proxy}) as ydl:
+ assert ydl.proxies == expected
def test_compat_request(self):
with FakeRHYDL() as ydl:
@@ -1331,6 +1558,95 @@ class TestYoutubeDLNetworking:
with pytest.raises(SSLError, match='testerror'):
ydl.urlopen('ssl://testerror')
+ def test_unsupported_impersonate_target(self):
+ class FakeImpersonationRHYDL(FakeYDL):
+ def __init__(self, *args, **kwargs):
+ class HTTPRH(RequestHandler):
+ def _send(self, request: Request):
+ pass
+ _SUPPORTED_URL_SCHEMES = ('http',)
+ _SUPPORTED_PROXY_SCHEMES = None
+
+ super().__init__(*args, **kwargs)
+ self._request_director = self.build_request_director([HTTPRH])
+
+ with FakeImpersonationRHYDL() as ydl:
+ with pytest.raises(
+ RequestError,
+ match=r'Impersonate target "test" is not available'
+ ):
+ ydl.urlopen(Request('http://', extensions={'impersonate': ImpersonateTarget('test', None, None, None)}))
+
+ def test_unsupported_impersonate_extension(self):
+ class FakeHTTPRHYDL(FakeYDL):
+ def __init__(self, *args, **kwargs):
+ class IRH(ImpersonateRequestHandler):
+ def _send(self, request: Request):
+ pass
+
+ _SUPPORTED_URL_SCHEMES = ('http',)
+ _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget('abc',): 'test'}
+ _SUPPORTED_PROXY_SCHEMES = None
+
+ super().__init__(*args, **kwargs)
+ self._request_director = self.build_request_director([IRH])
+
+ with FakeHTTPRHYDL() as ydl:
+ with pytest.raises(
+ RequestError,
+ match=r'Impersonate target "test" is not available'
+ ):
+ ydl.urlopen(Request('http://', extensions={'impersonate': ImpersonateTarget('test', None, None, None)}))
+
+ def test_raise_impersonate_error(self):
+ with pytest.raises(
+ YoutubeDLError,
+ match=r'Impersonate target "test" is not available'
+ ):
+ FakeYDL({'impersonate': ImpersonateTarget('test', None, None, None)})
+
+ def test_pass_impersonate_param(self, monkeypatch):
+
+ class IRH(ImpersonateRequestHandler):
+ def _send(self, request: Request):
+ pass
+
+ _SUPPORTED_URL_SCHEMES = ('http',)
+ _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget('abc'): 'test'}
+
+ # Bypass the check on initialize
+ brh = FakeYDL.build_request_director
+ monkeypatch.setattr(FakeYDL, 'build_request_director', lambda cls, handlers, preferences=None: brh(cls, handlers=[IRH]))
+
+ with FakeYDL({
+ 'impersonate': ImpersonateTarget('abc', None, None, None)
+ }) as ydl:
+ rh = self.build_handler(ydl, IRH)
+ assert rh.impersonate == ImpersonateTarget('abc', None, None, None)
+
+ def test_get_impersonate_targets(self):
+ handlers = []
+ for target_client in ('abc', 'xyz', 'asd'):
+ class TestRH(ImpersonateRequestHandler):
+ def _send(self, request: Request):
+ pass
+ _SUPPORTED_URL_SCHEMES = ('http',)
+ _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget(target_client,): 'test'}
+ RH_KEY = target_client
+ RH_NAME = target_client
+ handlers.append(TestRH)
+
+ with FakeYDL() as ydl:
+ ydl._request_director = ydl.build_request_director(handlers)
+ assert set(ydl._get_available_impersonate_targets()) == {
+ (ImpersonateTarget('xyz'), 'xyz'),
+ (ImpersonateTarget('abc'), 'abc'),
+ (ImpersonateTarget('asd'), 'asd')
+ }
+ assert ydl._impersonate_target_available(ImpersonateTarget('abc'))
+ assert ydl._impersonate_target_available(ImpersonateTarget())
+ assert not ydl._impersonate_target_available(ImpersonateTarget('zxy'))
+
@pytest.mark.parametrize('proxy_key,proxy_url,expected', [
('http', '__noproxy__', None),
('no', '127.0.0.1,foo.bar', '127.0.0.1,foo.bar'),
@@ -1341,23 +1657,17 @@ class TestYoutubeDLNetworking:
('http', 'socks4://example.com', 'socks4://example.com'),
('unrelated', '/bad/proxy', '/bad/proxy'), # clean_proxies should ignore bad proxies
])
- def test_clean_proxy(self, proxy_key, proxy_url, expected):
+ def test_clean_proxy(self, proxy_key, proxy_url, expected, monkeypatch):
# proxies should be cleaned in urlopen()
with FakeRHYDL() as ydl:
req = ydl.urlopen(Request('test://', proxies={proxy_key: proxy_url})).request
assert req.proxies[proxy_key] == expected
# and should also be cleaned when building the handler
- env_key = f'{proxy_key.upper()}_PROXY'
- old_env_proxy = os.environ.get(env_key)
- try:
- os.environ[env_key] = proxy_url # ensure that provided proxies override env
- with FakeYDL() as ydl:
- rh = self.build_handler(ydl)
- assert rh.proxies[proxy_key] == expected
- finally:
- if old_env_proxy:
- os.environ[env_key] = old_env_proxy
+ monkeypatch.setenv(f'{proxy_key.upper()}_PROXY', proxy_url)
+ with FakeYDL() as ydl:
+ rh = self.build_handler(ydl)
+ assert rh.proxies[proxy_key] == expected
def test_clean_proxy_header(self):
with FakeRHYDL() as ydl:
@@ -1629,3 +1939,71 @@ class TestResponse:
assert res.geturl() == res.url
assert res.info() is res.headers
assert res.getheader('test') == res.get_header('test')
+
+
+class TestImpersonateTarget:
+ @pytest.mark.parametrize('target_str,expected', [
+ ('abc', ImpersonateTarget('abc', None, None, None)),
+ ('abc-120_esr', ImpersonateTarget('abc', '120_esr', None, None)),
+ ('abc-120:xyz', ImpersonateTarget('abc', '120', 'xyz', None)),
+ ('abc-120:xyz-5.6', ImpersonateTarget('abc', '120', 'xyz', '5.6')),
+ ('abc:xyz', ImpersonateTarget('abc', None, 'xyz', None)),
+ ('abc:', ImpersonateTarget('abc', None, None, None)),
+ ('abc-120:', ImpersonateTarget('abc', '120', None, None)),
+ (':xyz', ImpersonateTarget(None, None, 'xyz', None)),
+ (':xyz-6.5', ImpersonateTarget(None, None, 'xyz', '6.5')),
+ (':', ImpersonateTarget(None, None, None, None)),
+ ('', ImpersonateTarget(None, None, None, None)),
+ ])
+ def test_target_from_str(self, target_str, expected):
+ assert ImpersonateTarget.from_str(target_str) == expected
+
+ @pytest.mark.parametrize('target_str', [
+ '-120', ':-12.0', '-12:-12', '-:-',
+ '::', 'a-c-d:', 'a-c-d:e-f-g', 'a:b:'
+ ])
+ def test_target_from_invalid_str(self, target_str):
+ with pytest.raises(ValueError):
+ ImpersonateTarget.from_str(target_str)
+
+ @pytest.mark.parametrize('target,expected', [
+ (ImpersonateTarget('abc', None, None, None), 'abc'),
+ (ImpersonateTarget('abc', '120', None, None), 'abc-120'),
+ (ImpersonateTarget('abc', '120', 'xyz', None), 'abc-120:xyz'),
+ (ImpersonateTarget('abc', '120', 'xyz', '5'), 'abc-120:xyz-5'),
+ (ImpersonateTarget('abc', None, 'xyz', None), 'abc:xyz'),
+ (ImpersonateTarget('abc', '120', None, None), 'abc-120'),
+ (ImpersonateTarget('abc', '120', 'xyz', None), 'abc-120:xyz'),
+ (ImpersonateTarget('abc', None, 'xyz'), 'abc:xyz'),
+ (ImpersonateTarget(None, None, 'xyz', '6.5'), ':xyz-6.5'),
+ (ImpersonateTarget('abc', ), 'abc'),
+ (ImpersonateTarget(None, None, None, None), ''),
+ ])
+ def test_str(self, target, expected):
+ assert str(target) == expected
+
+ @pytest.mark.parametrize('args', [
+ ('abc', None, None, '5'),
+ ('abc', '120', None, '5'),
+ (None, '120', None, None),
+ (None, '120', None, '5'),
+ (None, None, None, '5'),
+ (None, '120', 'xyz', '5'),
+ ])
+ def test_invalid_impersonate_target(self, args):
+ with pytest.raises(ValueError):
+ ImpersonateTarget(*args)
+
+ @pytest.mark.parametrize('target1,target2,is_in,is_eq', [
+ (ImpersonateTarget('abc', None, None, None), ImpersonateTarget('abc', None, None, None), True, True),
+ (ImpersonateTarget('abc', None, None, None), ImpersonateTarget('abc', '120', None, None), True, False),
+ (ImpersonateTarget('abc', None, 'xyz', 'test'), ImpersonateTarget('abc', '120', 'xyz', None), True, False),
+ (ImpersonateTarget('abc', '121', 'xyz', 'test'), ImpersonateTarget('abc', '120', 'xyz', 'test'), False, False),
+ (ImpersonateTarget('abc'), ImpersonateTarget('abc', '120', 'xyz', 'test'), True, False),
+ (ImpersonateTarget('abc', '120', 'xyz', 'test'), ImpersonateTarget('abc'), True, False),
+ (ImpersonateTarget(), ImpersonateTarget('abc', '120', 'xyz'), True, False),
+ (ImpersonateTarget(), ImpersonateTarget(), True, True),
+ ])
+ def test_impersonate_target_in(self, target1, target2, is_in, is_eq):
+ assert (target1 in target2) is is_in
+ assert (target1 == target2) is is_eq