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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() {
  // Add two listeners that both send replies. We're supposed to ignore all but one
  // of them. Which one is chosen is non-deterministic.

  browser.runtime.onMessage.addListener((msg, sender, sendReply) => {
    browser.test.assertTrue(sender.tab.url.endsWith("file_sample.html"), "sender url correct");

    if (msg == "getreply") {
      sendReply("reply1");
    }
  });

  browser.runtime.onMessage.addListener((msg, sender, sendReply) => {
    browser.test.assertTrue(sender.tab.url.endsWith("file_sample.html"), "sender url correct");

    if (msg == "getreply") {
      sendReply("reply2");
    }
  });

  function sleep(callback, n = 10) {
    if (n == 0) {
      callback();
    } else {
      setTimeout(function() { sleep(callback, n - 1); }, 0);
    }
  }

  let done_count = 0;
  browser.runtime.onMessage.addListener((msg, sender, sendReply) => {
    browser.test.assertTrue(sender.tab.url.endsWith("file_sample.html"), "sender url correct");

    if (msg == "done") {
      done_count++;
      browser.test.assertEq(done_count, 1, "got exactly one reply");

      // Go through the event loop a few times to make sure we don't get multiple replies.
      sleep(function() {
        browser.test.notifyPass("sendmessage_doublereply");
      });
    }
  });
}

function contentScript() {
  browser.runtime.sendMessage("getreply", function(resp) {
    if (resp != "reply1" && resp != "reply2") {
      return; // test failed
    }
    browser.runtime.sendMessage("done");
  });
}

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

  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.awaitFinish("sendmessage_doublereply")]);

  win.close();

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

</body>
</html>