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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Downloads Events Test</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="/tests/SimpleTest/ExtensionTestUtils.js"></script>
<script type="text/javascript" src="head.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<script type="text/javascript">
"use strict";
add_task(async function test_downloads_event_page() {
const apiEvents = ["onChanged"];
const apiNs = "downloads";
const extension = ExtensionTestUtils.loadExtension({
useAddonManager: "permanent",
manifest: {
browser_specific_settings: { gecko: { id: "eventpage@downloads" } },
permissions: ["downloads"],
background: { persistent: false },
},
background() {
browser.downloads.onChanged.addListener(() => {
browser.test.sendMessage("onChanged");
browser.test.notifyPass("downloads-events");
});
browser.test.sendMessage("ready");
},
});
// on startup, onChanged event listener should not be primed
await extension.startup();
info("Wait for event page to be started");
await extension.awaitMessage("ready");
await assertPersistentListeners(extension, apiNs, apiEvents, { primed: false });
// when the extension is killed, onChanged event listener should be primed
info("Terminate event page");
await extension.terminateBackground();
await assertPersistentListeners(extension, apiNs, apiEvents, { primed: true });
// fire download-changed event and onChanged event listener should not be primed
info("Wait for download-changed to be emitted");
await SpecialPowers.spawnChrome([], async () => {
const { DownloadTracker } = ChromeUtils.importESModule(
);
const delta = {
filename: "test.gif",
id: 4,
mime: "image/gif",
totalBytes: 5,
};
// Mocks DownloadItem from mobile/android/components/extensions/ext-downloads.js
const downloadItem = {
byExtensionId: "download-onChanged@tests.mozilla.org",
byExtensionName: "Download",
bytesReceived: 0,
canResume: false,
danger: "safe",
exists: false,
fileSize: -1,
filename: "test.gif",
id: 4,
incognito: false,
mime: "image/gif",
paused: false,
referrer: "",
startTime: 1680818149350,
state: "in_progress",
totalBytes: 5,
};
// WebExtension.DownloadDelegate has not been overridden in
// TestRunnerActivity (used by mochitests), so the downloads API
// does not actually work. In this test, we are only interested in
// whether or not dispatching an event would wake up the event page,
// so we artificially trigger a fake onChanged event to test that.
DownloadTracker.emit("download-changed", { delta, downloadItem });
});
info("Triggered download change, expecting downloads.onChanged event");
await extension.awaitMessage("ready");
await extension.awaitMessage("onChanged");
await extension.awaitFinish("downloads-events");
await assertPersistentListeners(extension, apiNs, apiEvents, { primed: false });
await extension.unload();
});
</script>
</body>
</html>