зеркало из https://github.com/mozilla/gecko-dev.git
91 строка
2.4 KiB
JavaScript
91 строка
2.4 KiB
JavaScript
/*
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Tests the Cache-control: stale-while-revalidate response directive.
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Purpose is to check we DON'T perform the background revalidation when we make the
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request past the reval window.
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* Make request #1.
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- response is from the server and version=1
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- max-age=1, stale-while-revalidate=1
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* Switch version of the data on the server.
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* Make request #2 in 3 seconds (entry should be expired by that time and no longer
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fall into the reval window.)
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- response is from the server, version=2
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* Done.
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*/
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"use strict";
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const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
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let max_age;
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let version;
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let generate_response = ver => `response version=${ver}`;
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function test_handler(metadata, response) {
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const originalBody = generate_response(version);
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response.setHeader("Content-Type", "text/html", false);
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response.setHeader(
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"Cache-control",
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`max-age=${max_age}, stale-while-revalidate=1`,
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false
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);
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response.setStatusLine(metadata.httpVersion, 200, "OK");
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response.bodyOutputStream.write(originalBody, originalBody.length);
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}
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function make_channel(url) {
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return NetUtil.newChannel({
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uri: url,
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loadUsingSystemPrincipal: true,
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}).QueryInterface(Ci.nsIHttpChannel);
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}
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async function get_response(channel, fromCache) {
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return new Promise(resolve => {
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channel.asyncOpen(
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new ChannelListener((request, buffer, ctx, isFromCache) => {
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ok(fromCache == isFromCache, `got response from cache = ${fromCache}`);
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resolve(buffer);
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})
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);
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});
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}
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async function sleep(time) {
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return new Promise(resolve => {
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do_timeout(time * 1000, resolve);
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});
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}
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async function stop_server(httpserver) {
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return new Promise(resolve => {
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httpserver.stop(resolve);
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});
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}
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add_task(async function() {
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let httpserver = new HttpServer();
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httpserver.registerPathHandler("/testdir", test_handler);
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httpserver.start(-1);
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const PORT = httpserver.identity.primaryPort;
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const URI = `http://localhost:${PORT}/testdir`;
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let response;
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version = 1;
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max_age = 1;
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response = await get_response(make_channel(URI), false);
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ok(response == generate_response(1), "got response ver 1");
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await sleep(max_age + 1 /* stale window */ + 1 /* to expire the window */);
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version = 2;
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response = await get_response(make_channel(URI), false);
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ok(response == generate_response(2), "got response ver 2");
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await stop_server(httpserver);
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});
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