<!DOCTYPE HTML>
<html>
<head>
  <title>Test for permissions</title>
  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
  <script src="chrome://mochikit/content/tests/SimpleTest/ExtensionTestUtils.js"></script>
  <link rel="stylesheet" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
</head>
<body>

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

add_task(async function test_downloads_open_permission() {
  function backgroundScript() {
    browser.test.assertEq(browser.downloads.open, undefined,
                          "`downloads.open` permission is required.");
    browser.test.notifyPass("downloads tests");
  }

  let extensionData = {
    background: backgroundScript,
    manifest: {
      permissions: ["downloads"],
    },
  };

  let extension = ExtensionTestUtils.loadExtension(extensionData);
  await extension.startup();
  await extension.awaitFinish("downloads tests");
  await extension.unload();
});

add_task(async function test_downloads_open_requires_user_interaction() {
  async function backgroundScript() {
    await browser.test.assertRejects(
      browser.downloads.open(10),
      "downloads.open may only be called from a user input handler",
      "The error is informative.");

    browser.test.notifyPass("downloads tests");
  }

  let extensionData = {
    background: backgroundScript,
    manifest: {
      permissions: ["downloads", "downloads.open"],
    },
  };

  let extension = ExtensionTestUtils.loadExtension(extensionData);
  await extension.startup();
  await extension.awaitFinish("downloads tests");
  await extension.unload();
});

add_task(async function downloads_open_invalid_id() {
  async function pageScript() {
    window.addEventListener("keypress", async function handler() {
      try {
        await browser.downloads.open(10);
        browser.test.sendMessage("download-open.result", {success: true});
      } catch (e) {
        browser.test.sendMessage("download-open.result", {
          success: false,
          error: e.message,
        });
      }
      window.removeEventListener("keypress", handler);
    });

    browser.test.sendMessage("page-ready");
  }

  let extensionData = {
    background() {
      browser.test.sendMessage("ready", browser.runtime.getURL("page.html"));
    },
    files: {
      "foo.txt": "It's the file called foo.txt.",
      "page.html": `<html><head>
        <script src="page.js"><\/script>
      </head></html>`,
      "page.js": pageScript,
    },
    manifest: {
      permissions: ["downloads", "downloads.open"],
    },
  };

  let extension = ExtensionTestUtils.loadExtension(extensionData);
  await extension.startup();

  let url = await extension.awaitMessage("ready");
  let win = window.open();
  let browserFrame = win.browsingContext.embedderElement;
  win.location.href = url;
  await extension.awaitMessage("page-ready");

  synthesizeKey("a", {}, browserFrame.contentWindow);
  let result = await extension.awaitMessage("download-open.result");

  is(result.success, false, "Opening download fails.");
  is(result.error, "Invalid download id 10", "The error is informative.");


  await extension.unload();
});

</script>

</body>
</html>
