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Test Info: Errors
- This test gets skipped with pattern: http3 OR http2
- This test failed 7 times in the preceding 30 days. quicksearch this test
- Manifest: devtools/client/netmonitor/test/browser.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
/**
*/
add_task(async function () {
requestLongerTimeout(4);
const { tab, monitor } = await initNetMonitor(INFINITE_GET_URL, {
enableCache: true,
requestCount: 1,
});
const { document, windowRequire, store } = monitor.panelWin;
const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
store.dispatch(Actions.batchEnable(false));
// Wait until the first request makes the empty notice disappear
await waitForRequestListToAppear();
const requestsContainer = document.querySelector(".requests-list-scroll");
ok(requestsContainer, "Container element exists as expected.");
// (1) Check that the scroll position is maintained at the bottom
// when the requests overflow the vertical size of the container.
await waitForRequestsToOverflowContainer();
await waitForScroll();
ok(true, "Scrolled to bottom on overflow.");
// (2) Now scroll to the top and check that additional requests
// do not change the scroll position.
requestsContainer.scrollTop = 0;
await waitSomeTime();
ok(!scrolledToBottom(requestsContainer), "Not scrolled to bottom.");
// save for comparison later
let { scrollTop } = requestsContainer;
// As we are scrolled top, new request appended won't be fetching their event timings,
// so do not wait for them
await waitForNetworkEvents(monitor, 8, { expectedEventTimings: 0 });
await waitSomeTime();
is(requestsContainer.scrollTop, scrollTop, "Did not scroll.");
// (3) Now set the scroll position back at the bottom and check that
// additional requests *do* cause the container to scroll down.
requestsContainer.scrollTop = requestsContainer.scrollHeight;
ok(scrolledToBottom(requestsContainer), "Set scroll position to bottom.");
await waitForNetworkEvents(monitor, 8);
await waitForScroll();
ok(true, "Still scrolled to bottom.");
// (4) Now select the first item in the list
// and check that additional requests do not change the scroll position
// from just below the headers.
store.dispatch(Actions.selectRequestByIndex(0));
scrollTop = requestsContainer.scrollTop;
await waitForNetworkEvents(monitor, 8);
await waitSomeTime();
is(requestsContainer.scrollTop, scrollTop, "Did not scroll.");
// Stop doing requests.
await SpecialPowers.spawn(tab.linkedBrowser, [], function () {
content.wrappedJSObject.stopRequests();
});
// Done: clean up.
return teardown(monitor);
function waitForRequestListToAppear() {
info(
"Waiting until the empty notice disappears and is replaced with the list"
);
return waitUntil(
() => !!document.querySelector(".requests-list-row-group")
);
}
async function waitForRequestsToOverflowContainer() {
info("Waiting for enough requests to overflow the container");
while (true) {
info("Waiting for one network request");
await waitForNetworkEvents(monitor, 1);
if (
requestsContainer.scrollHeight >
requestsContainer.clientHeight + 50
) {
info("The list is long enough, returning");
return;
}
}
}
function scrolledToBottom(element) {
return element.scrollTop + element.clientHeight >= element.scrollHeight;
}
function waitSomeTime() {
// Wait to make sure no scrolls happen
return wait(50);
}
function waitForScroll() {
info("Waiting for the list to scroll to bottom");
return waitUntil(() => scrolledToBottom(requestsContainer));
}
});