mozilla-central/toolkit/components/mediasniffer/test/unit/test_mediasniffer.js (file symbol)

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Test Info: Warnings

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const { HttpServer } = ChromeUtils.importESModule(
);
const { NetUtil } = ChromeUtils.importESModule(
"resource://gre/modules/NetUtil.sys.mjs"
);
const PATH = "/file.meh";
var httpserver = new HttpServer();
// Each time, the data consist in a string that should be sniffed as Ogg.
const data = "OggS\0meeeh.";
var testRan = 0;
// If the content-type is not present, or if it's application/octet-stream, it
// should be sniffed to application/ogg by the media sniffer. Otherwise, it
// should not be changed.
const tests = [
// Those three first case are the case of a media loaded in a media element.
// All three should be sniffed.
{
contentType: "",
expectedContentType: "application/ogg",
flags:
Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS |
Ci.nsIChannel.LOAD_MEDIA_SNIFFER_OVERRIDES_CONTENT_TYPE,
},
{
contentType: "application/octet-stream",
expectedContentType: "application/ogg",
flags:
Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS |
Ci.nsIChannel.LOAD_MEDIA_SNIFFER_OVERRIDES_CONTENT_TYPE,
},
{
contentType: "application/something",
expectedContentType: "application/ogg",
flags:
Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS |
Ci.nsIChannel.LOAD_MEDIA_SNIFFER_OVERRIDES_CONTENT_TYPE,
},
// This last cases test the case of a channel opened while allowing content
// sniffers to override the content-type, like in the docshell.
{
contentType: "application/octet-stream",
expectedContentType: "application/ogg",
flags: Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS,
},
{
contentType: "",
expectedContentType: "application/ogg",
flags: Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS,
},
{
contentType: "application/something",
expectedContentType: "application/ogg",
flags: Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS,
},
];
// A basic listener that reads checks the if we sniffed properly.
var listener = {
onStartRequest(request) {
Assert.equal(
request.QueryInterface(Ci.nsIChannel).contentType,
tests[testRan].expectedContentType
);
},
onDataAvailable(request, stream) {
try {
var bis = Cc["@mozilla.org/binaryinputstream;1"].createInstance(
Ci.nsIBinaryInputStream
);
bis.setInputStream(stream);
bis.readByteArray(bis.available());
} catch (ex) {
do_throw("Error in onDataAvailable: " + ex);
}
},
onStopRequest() {
testRan++;
runNext();
},
};
function setupChannel(url, flags) {
let uri = "http://localhost:" + httpserver.identity.primaryPort + url;
var chan = NetUtil.newChannel({
uri,
loadUsingSystemPrincipal: true,
contentPolicyType: Ci.nsIContentPolicy.TYPE_MEDIA,
});
chan.loadFlags |= flags;
var httpChan = chan.QueryInterface(Ci.nsIHttpChannel);
return httpChan;
}
function runNext() {
if (testRan == tests.length) {
do_test_finished();
return;
}
var channel = setupChannel(PATH, tests[testRan].flags);
httpserver.registerPathHandler(PATH, function (request, response) {
response.setHeader("Content-Type", tests[testRan].contentType, false);
response.bodyOutputStream.write(data, data.length);
});
channel.asyncOpen(listener);
}
function run_test() {
httpserver.start(-1);
do_test_pending();
try {
runNext();
} catch (e) {
print("ERROR - " + e + "\n");
}
}