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Test Info:

/**
* Test for the "CacheEntryId" under several cases.
*/
"use strict";
const { HttpServer } = ChromeUtils.importESModule(
);
ChromeUtils.defineLazyGetter(this, "URL", function () {
return "http://localhost:" + httpServer.identity.primaryPort + "/content";
});
var httpServer = null;
const responseContent = "response body";
const responseContent2 = "response body 2";
const altContent = "!@#$%^&*()";
const altContentType = "text/binary";
function isParentProcess() {
let appInfo = Cc["@mozilla.org/xre/app-info;1"];
return (
!appInfo ||
Services.appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT
);
}
var handlers = [
(m, r) => {
r.bodyOutputStream.write(responseContent, responseContent.length);
},
(m, r) => {
r.setStatusLine(m.httpVersion, 304, "Not Modified");
},
(m, r) => {
r.setStatusLine(m.httpVersion, 304, "Not Modified");
},
(m, r) => {
r.setStatusLine(m.httpVersion, 304, "Not Modified");
},
(m, r) => {
r.setStatusLine(m.httpVersion, 304, "Not Modified");
},
(m, r) => {
r.bodyOutputStream.write(responseContent2, responseContent2.length);
},
(m, r) => {
r.setStatusLine(m.httpVersion, 304, "Not Modified");
},
];
function contentHandler(metadata, response) {
response.setHeader("Content-Type", "text/plain");
response.setHeader("Cache-Control", "no-cache");
var handler = handlers.shift();
if (handler) {
handler(metadata, response);
return;
}
Assert.ok(false, "Should not reach here.");
}
function fetch(preferredDataType = null) {
return new Promise(resolve => {
var chan = NetUtil.newChannel({ uri: URL, loadUsingSystemPrincipal: true });
if (preferredDataType) {
var cc = chan.QueryInterface(Ci.nsICacheInfoChannel);
cc.preferAlternativeDataType(
altContentType,
"",
Ci.nsICacheInfoChannel.ASYNC
);
}
chan.asyncOpen(
new ChannelListener((request, buffer, ctx, isFromCache, cacheEntryId) => {
resolve({ request, buffer, isFromCache, cacheEntryId });
}, null)
);
});
}
function check(
response,
content,
preferredDataType,
isFromCache,
cacheEntryIdChecker
) {
var cc = response.request.QueryInterface(Ci.nsICacheInfoChannel);
Assert.equal(response.buffer, content);
Assert.equal(cc.alternativeDataType, preferredDataType);
Assert.equal(response.isFromCache, isFromCache);
Assert.ok(!cacheEntryIdChecker || cacheEntryIdChecker(response.cacheEntryId));
return response;
}
function writeAltData(request) {
var cc = request.QueryInterface(Ci.nsICacheInfoChannel);
var os = cc.openAlternativeOutputStream(altContentType, altContent.length);
os.write(altContent, altContent.length);
os.close();
gc(); // We need to do a GC pass to ensure the cache entry has been freed.
return new Promise(resolve => {
if (isParentProcess()) {
Services.cache2.QueryInterface(Ci.nsICacheTesting).flush(resolve);
} else {
do_send_remote_message("flush");
do_await_remote_message("flushed").then(resolve);
}
});
}
function run_test() {
do_get_profile();
httpServer = new HttpServer();
httpServer.registerPathHandler("/content", contentHandler);
httpServer.start(-1);
do_test_pending();
var targetCacheEntryId = null;
return (
Promise.resolve()
// Setup testing environment: Placing alternative data into HTTP cache.
.then(_ => fetch(altContentType))
.then(r =>
check(
r,
responseContent,
"",
false,
cacheEntryId => cacheEntryId === undefined
)
)
.then(r => writeAltData(r.request))
// Start testing.
.then(_ => fetch(altContentType))
.then(r =>
check(
r,
altContent,
altContentType,
true,
cacheEntryId => cacheEntryId !== undefined
)
)
.then(r => (targetCacheEntryId = r.cacheEntryId))
.then(_ => fetch())
.then(r =>
check(
r,
responseContent,
"",
true,
cacheEntryId => cacheEntryId === targetCacheEntryId
)
)
.then(_ => fetch(altContentType))
.then(r =>
check(
r,
altContent,
altContentType,
true,
cacheEntryId => cacheEntryId === targetCacheEntryId
)
)
.then(_ => fetch())
.then(r =>
check(
r,
responseContent,
"",
true,
cacheEntryId => cacheEntryId === targetCacheEntryId
)
)
.then(_ => fetch()) // The response is changed here.
.then(r =>
check(
r,
responseContent2,
"",
false,
cacheEntryId => cacheEntryId === undefined
)
)
.then(_ => fetch())
.then(r =>
check(
r,
responseContent2,
"",
true,
cacheEntryId =>
cacheEntryId !== undefined && cacheEntryId !== targetCacheEntryId
)
)
// Tear down.
.catch(e => Assert.ok(false, "Unexpected exception: " + e))
.then(_ => Assert.equal(handlers.length, 0))
.then(_ => httpServer.stop(do_test_finished))
);
}