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<!DOCTYPE html>
<html>
<head>
<title>Test content script async loading</title>
<script src="/tests/SimpleTest/SpawnTask.js"></script>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/ExtensionTestUtils.js"></script>
<script src="head.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<script>
"use strict";
add_task(async function test_async_loading() {
const adder = `(function add(a = 1) { this.count += a; })();\n`;
const extension = {
manifest: {
content_scripts: [
{
run_at: "document_start",
matches: ["https://example.org/"],
js: ["first.js", "second.js"],
},
{
run_at: "document_end",
matches: ["https://example.org/"],
js: ["third.js"],
},
],
},
files: {
"first.js": `
this.count = 0;
${adder.repeat(50000)}; // 2Mb
browser.test.assertEq(this.count, 50000, "A 50k line script");
this.order = (this.order || 0) + 1;
browser.test.sendMessage("first", this.order);
`,
"second.js": `
this.order = (this.order || 0) + 1;
browser.test.sendMessage("second", this.order);
`,
"third.js": `
this.order = (this.order || 0) + 1;
browser.test.sendMessage("third", this.order);
`,
},
};
async function checkOrder(extension) {
const [first, second, third] = await Promise.all([
extension.awaitMessage("first"),
extension.awaitMessage("second"),
extension.awaitMessage("third"),
]);
is(first, 1, "first.js finished execution first.");
is(second, 2, "second.js finished execution second.");
is(third, 3, "third.js finished execution third.");
}
info("Test pages observed while extension is running");
const observed = ExtensionTestUtils.loadExtension(extension);
await observed.startup();
const win = window.open("https://example.org/");
await checkOrder(observed);
await observed.unload();
info("Test pages already existing on extension startup");
const existing = ExtensionTestUtils.loadExtension(extension);
await existing.startup();
await checkOrder(existing);
await existing.unload();
win.close();
});
</script>
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