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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 asyncio
from pathlib import Path
import pytest
from twisted.web import http
from playwright.async_api import BrowserContext, Page, Route
from tests.server import Server
async def test_should_fulfill_intercepted_response(
page: Page, context: BrowserContext, server: Server
) -> None:
async def handle(route: Route) -> None:
response = await page.request.fetch(route.request)
await route.fulfill(
response=response,
status=201,
headers={"foo": "bar"},
content_type="text/plain",
body="Yo, page!",
)
await context.route("**/*", handle)
response = await page.goto(server.PREFIX + "/empty.html")
assert response
assert response.status == 201
assert response.headers["foo"] == "bar"
assert response.headers["content-type"] == "text/plain"
assert await page.evaluate("() => document.body.textContent") == "Yo, page!"
async def test_should_fulfill_response_with_empty_body(
page: Page, context: BrowserContext, server: Server
) -> None:
async def handle(route: Route) -> None:
response = await page.request.fetch(route.request)
await route.fulfill(
response=response, status=201, body="", headers={"content-length": "0"}
)
await context.route("**/*", handle)
response = await page.goto(server.PREFIX + "/title.html")
assert response
assert response.status == 201
assert await response.text() == ""
async def test_should_override_with_defaults_when_intercepted_response_not_provided(
page: Page, context: BrowserContext, server: Server, browser_name: str
) -> None:
def server_handler(request: http.Request) -> None:
request.setHeader("foo", "bar")
request.write("my content".encode())
request.finish()
server.set_route("/empty.html", server_handler)
async def handle(route: Route) -> None:
await page.request.fetch(route.request)
await route.fulfill(status=201)
await context.route("**/*", handle)
response = await page.goto(server.EMPTY_PAGE)
assert response
assert response.status == 201
assert await response.text() == ""
if browser_name == "webkit":
assert response.headers == {"content-type": "text/plain"}
else:
assert response.headers == {}
async def test_should_fulfill_with_any_response(
page: Page, context: BrowserContext, server: Server
) -> None:
def server_handler(request: http.Request) -> None:
request.setHeader("foo", "bar")
request.write("Woo-hoo".encode())
request.finish()
server.set_route("/sample", server_handler)
sample_response = await page.request.get(server.PREFIX + "/sample")
await context.route(
"**/*",
lambda route: route.fulfill(
response=sample_response, status=201, content_type="text/plain"
),
)
response = await page.goto(server.EMPTY_PAGE)
assert response
assert response.status == 201
assert await response.text() == "Woo-hoo"
assert response.headers["foo"] == "bar"
async def test_should_support_fulfill_after_intercept(
page: Page, context: BrowserContext, server: Server, assetdir: Path
) -> None:
request_future = asyncio.create_task(server.wait_for_request("/title.html"))
async def handle_route(route: Route) -> None:
response = await page.request.fetch(route.request)
await route.fulfill(response=response)
await context.route("**", handle_route)
response = await page.goto(server.PREFIX + "/title.html")
assert response
request = await request_future
assert request.uri.decode() == "/title.html"
original = (assetdir / "title.html").read_text()
assert await response.text() == original
async def test_should_give_access_to_the_intercepted_response(
page: Page, context: BrowserContext, server: Server
) -> None:
await page.goto(server.EMPTY_PAGE)
route_task: "asyncio.Future[Route]" = asyncio.Future()
await context.route("**/title.html", lambda route: route_task.set_result(route))
eval_task = asyncio.create_task(
page.evaluate("url => fetch(url)", server.PREFIX + "/title.html")
)
route = await route_task
response = await page.request.fetch(route.request)
assert response.status == 200
assert response.status_text == "OK"
assert response.ok is True
assert response.url.endswith("/title.html") is True
assert response.headers["content-type"] == "text/html; charset=utf-8"
assert list(
filter(
lambda header: header["name"].lower() == "content-type",
response.headers_array,
)
) == [{"name": "Content-Type", "value": "text/html; charset=utf-8"}]
await asyncio.gather(
route.fulfill(response=response),
eval_task,
)
async def test_should_give_access_to_the_intercepted_response_body(
page: Page, context: BrowserContext, server: Server
) -> None:
await page.goto(server.EMPTY_PAGE)
route_task: "asyncio.Future[Route]" = asyncio.Future()
await context.route("**/simple.json", lambda route: route_task.set_result(route))
eval_task = asyncio.create_task(
page.evaluate("url => fetch(url)", server.PREFIX + "/simple.json")
)
route = await route_task
response = await page.request.fetch(route.request)
assert await response.text() == '{"foo": "bar"}\n'
await asyncio.gather(
route.fulfill(response=response),
eval_task,
)
async def test_should_show_exception_after_fulfill(page: Page, server: Server) -> None:
async def _handle(route: Route) -> None:
await route.continue_()
raise Exception("Exception text!?")
await page.route("*/**", _handle)
await page.goto(server.EMPTY_PAGE)
# Any next API call should throw because handler did throw during previous goto()
with pytest.raises(Exception, match="Exception text!?"):
await page.goto(server.EMPTY_PAGE)
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