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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(function* test_async_loading() {
  const adder = `(function add(a = 1) { this.count += a; })();\n`;
  const extension = ExtensionTestUtils.loadExtension({
    manifest: {
      content_scripts: [{
        matches: ["https://example.org/"],
        js: ["first.js", "second.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);
      `,
    },
  });

  yield extension.startup();
  const win = window.open("https://example.org/");

  const [first, second] = yield Promise.all([
    extension.awaitMessage("first"),
    extension.awaitMessage("second"),
  ]);

  is(first, 1, "first.js finished execution first.");
  is(second, 2, "second.js finished execution second.");

  yield extension.unload();
  win.close();
});

</script>