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<!DOCTYPE HTML>
<html>
<head>
  <title>WebExtension test</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="/tests/SimpleTest/SpawnTask.js"></script>
  <script type="text/javascript" src="/tests/SimpleTest/ExtensionTestUtils.js"></script>
  <script type="text/javascript" src="head.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>

<script type="text/javascript">
"use strict";

function background() {
  browser.runtime.onConnect.addListener(port => {
    browser.test.assertEq(port.name, "ernie", "port name correct");
    port.onDisconnect.addListener(() => {
      browser.test.assertEq(null, port.error, "The port is implicitly closed without errors when the other context unloads");
      // Closing an already-disconnected port is a no-op.
      port.disconnect();
      port.disconnect();
      browser.test.sendMessage("disconnected");
    });
    browser.test.sendMessage("connected");
  });
}

function contentScript() {
  browser.runtime.connect({name: "ernie"});
}

let extensionData = {
  background,
  manifest: {
    "permissions": ["tabs"],
    "content_scripts": [{
      "matches": ["http://mochi.test/*/file_sample.html"],
      "js": ["content_script.js"],
      "run_at": "document_idle",
    }],
  },

  files: {
    "content_script.js": contentScript,
  },
};

add_task(function* test_contentscript() {
  let extension = ExtensionTestUtils.loadExtension(extensionData);
  yield extension.startup();

  let win = window.open("file_sample.html");
  yield Promise.all([waitForLoad(win), extension.awaitMessage("connected")]);
  win.close();
  yield extension.awaitMessage("disconnected");

  info("win.close() succeeded");

  win = window.open("file_sample.html");
  yield Promise.all([waitForLoad(win), extension.awaitMessage("connected")]);

  // Add an "unload" listener so that we don't put the window in the
  // bfcache. This way it gets destroyed immediately upon navigation.
  win.addEventListener("unload", function() {});  // eslint-disable-line mozilla/balanced-listeners

  win.location = "http://example.com";
  yield extension.awaitMessage("disconnected");
  win.close();

  yield extension.unload();
  info("extension unloaded");
});
</script>

</body>
</html>