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Test Info: Warnings
- This test gets skipped with pattern: os == 'linux' && os_version == '18.04' && processor == 'x86_64' && debug && http3 OR os == 'linux' && os_version == '24.04' && processor == 'x86_64' && display == 'x11' && debug && http3
- Manifest: devtools/client/netmonitor/test/browser.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test the cache details panel.
add_task(async function () {
let isCacheReady = false;
const httpServer = createTestHTTPServer();
httpServer.registerContentType("html", "text/html");
httpServer.registerPathHandler(`/`, function (request, response) {
response.setStatusLine(request.httpVersion, 200, "OK");
response.write(`
<html>Test page for regular 304 requests</html>`);
});
httpServer.registerPathHandler(`/cached`, function (request, response) {
if (isCacheReady) {
response.setStatusLine(request.httpVersion, 304, "Not Modified");
} else {
response.setStatusLine(request.httpVersion, 200, "OK");
response.setHeader("Content-Type", "text/plain");
response.setHeader("Cache-Control", "no-cache");
response.write(`cached`);
// Flip the isCachedReady flag so that the next call will hit the 304
// branch and the browser can reuse the cached response.
isCacheReady = true;
}
});
const port = httpServer.identity.primaryPort;
const { monitor } = await initNetMonitor(CACHE_TEST_URL, {
enableCache: true,
requestCount: 1,
});
const { document, store, windowRequire } = monitor.panelWin;
const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
info("Create a 200 request");
let waitForRequest = waitForNetworkEvents(monitor, 1);
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], () => {
content.fetch("/cached");
});
await waitForRequest;
info("Select the request and wait until the headers panel is displayed");
store.dispatch(Actions.selectRequestByIndex(0));
await waitFor(() => document.querySelector(".headers-overview"));
ok(
!document.querySelector("#cache-tab"),
"No cache panel is available for the 200 request"
);
info("Create a 304 request");
waitForRequest = waitForNetworkEvents(monitor, 1);
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], () => {
content.fetch("/cached");
});
await waitForRequest;
info("Select the request and wait until the headers panel is displayed");
store.dispatch(Actions.selectRequestByIndex(1));
await waitFor(() => document.querySelector(".headers-overview"));
ok(
document.querySelector("#cache-tab"),
"A cache panel is available for the 304 request"
);
document.querySelector("#cache-tab").click();
info("Wait until the Cache panel content is displayed");
await waitFor(() => !!document.getElementById("/Cache"));
const device = getCacheDetailsValue(document, "Device");
is(device, "Not Available", "device information is `Not Available`");
// We cannot precisely assert the dates rendered by the cache panel because
// they are formatted using toLocaleDateString/toLocaleTimeString, and
// For "last modified" should be the same day as the test, and we could assert
// that. However the cache panel is intermittently fully "Not available",
// except for the "Expires" field, which seems to always have a value.
const lastModified = getCacheDetailsValue(document, "Last Modified");
info("Retrieved lastModified value: " + lastModified);
ok(!!lastModified, "Last Modified was found in the cache panel");
// For "expires" we will only check that this is not set to `Not Available`.
const expires = getCacheDetailsValue(document, "Expires");
info("Retrieved expires value: " + expires);
ok(
!expires.includes("Not Available"),
"Expires is set to a value other than unavailable"
);
});
/**
* Helper to retrieve individual values from the Cache details panel.
* Eg, for `Expires: "11/9/2022 6:54:33 PM"`, this should return
* "11/9/2022 6:54:33 PM".
*
* @param {Document} doc
* The netmonitor document.
* @param {string} cacheItemId
* The id of the cache element to retrieve. See netmonitor.cache.* localized
* strings.
*
* @returns {string}
* The value corresponding to the provided id.
*/
function getCacheDetailsValue(doc, cacheItemId) {
const container = doc.getElementById("/Cache/" + cacheItemId);
ok(!!container, `Found the cache panel container for id ${cacheItemId}`);
const valueContainer = container.querySelector(".treeValueCell span");
ok(
!!valueContainer,
`Found the cache panel value container for id ${cacheItemId}`
);
// The values have opening and closing quotes, remove them using substring.
// `"some value"` -> `some value`
const quotedValue = valueContainer.textContent;
return quotedValue.substring(1, quotedValue.length - 1);
}