playwright-python/tests/sync/test_fetch_browser_context.py

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# Copyright (c) Microsoft Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
from pathlib import Path
from typing import Any, Dict, List, cast
from urllib.parse import parse_qs
import pytest
from playwright.sync_api import (
BrowserContext,
Error,
FilePayload,
FormData,
Page,
)
from tests.server import Server
from tests.utils import must
def test_get_should_work(context: BrowserContext, server: Server) -> None:
response = context.request.get(server.PREFIX + "/simple.json")
assert response.url == server.PREFIX + "/simple.json"
assert response.status == 200
assert response.status_text == "OK"
assert response.ok is True
assert response.headers["content-type"] == "application/json"
assert {
"name": "Content-Type",
"value": "application/json",
} in response.headers_array
assert response.text() == '{"foo": "bar"}\n'
def test_fetch_should_work(context: BrowserContext, server: Server) -> None:
response = context.request.fetch(server.PREFIX + "/simple.json")
assert response.url == server.PREFIX + "/simple.json"
assert response.status == 200
assert response.status_text == "OK"
assert response.ok is True
assert response.headers["content-type"] == "application/json"
assert {
"name": "Content-Type",
"value": "application/json",
} in response.headers_array
assert response.text() == '{"foo": "bar"}\n'
def test_should_throw_on_network_error(context: BrowserContext, server: Server) -> None:
server.set_route("/test", lambda request: request.loseConnection())
with pytest.raises(Error, match="socket hang up"):
context.request.fetch(server.PREFIX + "/test")
def test_should_add_session_cookies_to_request(
context: BrowserContext, server: Server
) -> None:
context.add_cookies(
[
{
"name": "username",
"value": "John Doe",
"url": server.EMPTY_PAGE,
"expires": -1,
"httpOnly": False,
"secure": False,
"sameSite": "Lax",
}
]
)
with server.expect_request("/empty.html") as server_req:
context.request.get(server.EMPTY_PAGE)
assert server_req.value.getHeader("Cookie") == "username=John Doe"
@pytest.mark.parametrize(
"method", ["fetch", "delete", "get", "head", "patch", "post", "put"]
)
def test_should_support_query_params(
context: BrowserContext, server: Server, method: str
) -> None:
expected_params = {"p1": "v1", "парам2": "знач2"}
with server.expect_request("/empty.html") as server_req:
getattr(context.request, method)(
server.EMPTY_PAGE + "?p1=foo", params=expected_params
)
assert list(map(lambda x: x.decode(), server_req.value.args["p1".encode()])) == [
"foo",
"v1",
]
assert server_req.value.args["парам2".encode()][0].decode() == "знач2"
@pytest.mark.parametrize(
"method", ["fetch", "delete", "get", "head", "patch", "post", "put"]
)
def test_should_support_params_passed_as_object(
context: BrowserContext, server: Server, method: str
) -> None:
params = {
"param1": "value1",
"парам2": "знач2",
}
with server.expect_request("/empty.html") as server_req:
getattr(context.request, method)(server.EMPTY_PAGE, params=params)
assert server_req.value.args["param1".encode()][0].decode() == "value1"
assert len(server_req.value.args["param1".encode()]) == 1
assert server_req.value.args["парам2".encode()][0].decode() == "знач2"
@pytest.mark.parametrize(
"method", ["fetch", "delete", "get", "head", "patch", "post", "put"]
)
def test_should_support_params_passed_as_strings(
context: BrowserContext, server: Server, method: str
) -> None:
params = "?param1=value1&param1=value2&парам2=знач2"
with server.expect_request("/empty.html") as server_req:
getattr(context.request, method)(server.EMPTY_PAGE, params=params)
assert list(
map(lambda x: x.decode(), server_req.value.args["param1".encode()])
) == ["value1", "value2"]
assert len(server_req.value.args["param1".encode()]) == 2
assert server_req.value.args["парам2".encode()][0].decode() == "знач2"
@pytest.mark.parametrize(
"method", ["fetch", "delete", "get", "head", "patch", "post", "put"]
)
def test_should_support_fail_on_status_code(
context: BrowserContext, server: Server, method: str
) -> None:
with pytest.raises(Error, match="404 Not Found"):
getattr(context.request, method)(
server.PREFIX + "/this-does-clearly-not-exist.html",
fail_on_status_code=True,
)
@pytest.mark.parametrize(
"method", ["fetch", "delete", "get", "head", "patch", "post", "put"]
)
def test_should_support_ignore_https_errors_option(
context: BrowserContext, https_server: Server, method: str
) -> None:
response = getattr(context.request, method)(
https_server.EMPTY_PAGE, ignore_https_errors=True
)
assert response.ok
assert response.status == 200
def test_should_not_add_context_cookie_if_cookie_header_passed_as_parameter(
context: BrowserContext, server: Server
) -> None:
context.add_cookies(
[
{
"name": "username",
"value": "John Doe",
"url": server.EMPTY_PAGE,
"expires": -1,
"httpOnly": False,
"secure": False,
"sameSite": "Lax",
}
]
)
with server.expect_request("/empty.html") as server_req:
context.request.get(server.EMPTY_PAGE, headers={"Cookie": "foo=bar"})
assert server_req.value.getHeader("Cookie") == "foo=bar"
@pytest.mark.parametrize("method", ["delete", "patch", "post", "put"])
def test_should_support_post_data(
context: BrowserContext, method: str, server: Server
) -> None:
def support_post_data(fetch_data: Any, request_post_data: Any) -> None:
with server.expect_request("/simple.json") as request:
response = getattr(context.request, method)(
server.PREFIX + "/simple.json", data=fetch_data
)
assert request.value.method.decode() == method.upper()
assert request.value.post_body == request_post_data
assert response.status == 200
assert response.url == server.PREFIX + "/simple.json"
assert request.value.getHeader("Content-Length") == str(
len(must(request.value.post_body))
)
support_post_data("My request", "My request".encode())
support_post_data(b"My request", "My request".encode())
support_post_data(["my", "request"], json.dumps(["my", "request"]).encode())
support_post_data({"my": "request"}, json.dumps({"my": "request"}).encode())
with pytest.raises(Error, match="Unsupported 'data' type: <class 'function'>"):
support_post_data(lambda: None, None)
def test_should_support_application_x_www_form_urlencoded(
context: BrowserContext, server: Server
) -> None:
with server.expect_request("/empty.html") as server_req:
context.request.post(
server.PREFIX + "/empty.html",
form={
"firstName": "John",
"lastName": "Doe",
"file": "f.js",
},
)
assert server_req.value.method == b"POST"
assert (
server_req.value.getHeader("Content-Type")
== "application/x-www-form-urlencoded"
)
body = must(server_req.value.post_body).decode()
assert server_req.value.getHeader("Content-Length") == str(len(body))
params: Dict[bytes, List[bytes]] = parse_qs(server_req.value.post_body)
assert params[b"firstName"] == [b"John"]
assert params[b"lastName"] == [b"Doe"]
assert params[b"file"] == [b"f.js"]
def test_should_support_multipart_form_data(
context: BrowserContext, server: Server
) -> None:
file: FilePayload = {
"name": "f.js",
"mimeType": "text/javascript",
"buffer": b"var x = 10;\r\n;console.log(x);",
}
with server.expect_request("/empty.html") as server_req:
context.request.post(
server.PREFIX + "/empty.html",
multipart={
"firstName": "John",
"lastName": "Doe",
"file": file,
},
)
assert server_req.value.method == b"POST"
content_type = server_req.value.getHeader("Content-Type")
assert content_type
assert content_type.startswith("multipart/form-data; ")
assert server_req.value.getHeader("Content-Length") == str(
len(must(server_req.value.post_body))
)
assert server_req.value.args[b"firstName"] == [b"John"]
assert server_req.value.args[b"lastName"] == [b"Doe"]
assert server_req.value.args[b"file"][0] == file["buffer"]
def test_should_support_form_data_with_repeated_keys(
context: BrowserContext, server: Server
) -> None:
form = FormData()
form.append("name", "John")
form.append("name", "Doe")
form.set("email", "john@example.com")
with server.expect_request("/empty.html") as server_req:
context.request.post(server.EMPTY_PAGE, form=form)
params = parse_qs(must(server_req.value.post_body))
assert params[b"name"] == [b"John", b"Doe"]
assert params[b"email"] == [b"john@example.com"]
def test_should_reject_file_value_in_form(
context: BrowserContext, server: Server, tmp_path: Path
) -> None:
file = tmp_path / "f.txt"
file.write_bytes(b"hello")
form = FormData()
form.set("attachment", file)
with pytest.raises(Error, match="Use 'multipart' for file uploads"):
context.request.post(server.EMPTY_PAGE, form=form)
def test_should_support_multipart_form_data_with_multiple_files_in_one_field(
context: BrowserContext, server: Server
) -> None:
file1: FilePayload = {
"name": "f1.txt",
"mimeType": "text/plain",
"buffer": b"file 1 content",
}
file2: FilePayload = {
"name": "f2.txt",
"mimeType": "text/plain",
"buffer": b"file 2 content",
}
form = FormData()
form.append("files", file1)
form.append("files", file2)
form.set("user", "alice")
with server.expect_request("/empty.html") as server_req:
context.request.post(server.EMPTY_PAGE, multipart=form)
assert cast(str, server_req.value.getHeader("Content-Type")).startswith(
"multipart/form-data; "
)
assert server_req.value.args[b"user"] == [b"alice"]
assert server_req.value.args[b"files"] == [file1["buffer"], file2["buffer"]]
def test_should_support_multipart_form_data_with_path_value(
context: BrowserContext, server: Server, tmp_path: Path
) -> None:
file = tmp_path / "data.csv"
file.write_bytes(b"a,b,c\n1,2,3\n")
form = FormData()
form.set("attachment", file)
with server.expect_request("/empty.html") as server_req:
context.request.post(server.EMPTY_PAGE, multipart=form)
assert cast(str, server_req.value.getHeader("Content-Type")).startswith(
"multipart/form-data; "
)
assert server_req.value.args[b"attachment"] == [b"a,b,c\n1,2,3\n"]
def test_should_add_default_headers(
context: BrowserContext, page: Page, server: Server
) -> None:
with server.expect_request("/empty.html") as server_req:
context.request.get(server.EMPTY_PAGE)
assert server_req.value.getHeader("Accept") == "*/*"
assert server_req.value.getHeader("Accept-Encoding") == "gzip,deflate,br"
assert server_req.value.getHeader("User-Agent") == page.evaluate(
"() => navigator.userAgent"
)