gecko/browser/components/feeds/test/unit/test_355473.js

const NS_ERROR_MALFORMED_URI = 0x804B000A;

function run_test() {
  var feedFeedURI = ios.newURI("feed://example.com/feed.xml", null, null);
  var httpFeedURI = ios.newURI("feed:http://example.com/feed.xml", null, null);
  var httpURI = ios.newURI("http://example.com/feed.xml", null, null);

  var httpsFeedURI =
    ios.newURI("feed:https://example.com/feed.xml", null, null);
  var httpsURI = ios.newURI("https://example.com/feed.xml", null, null);

  var feedChannel = ios.newChannelFromURI(feedFeedURI, null);
  var httpChannel = ios.newChannelFromURI(httpFeedURI, null);
  var httpsChannel = ios.newChannelFromURI(httpsFeedURI, null);

  // not setting .originalURI to the original URI is naughty
  do_check_true(feedFeedURI.equals(feedChannel.originalURI));
  do_check_true(httpFeedURI.equals(httpChannel.originalURI));
  do_check_true(httpsFeedURI.equals(httpsChannel.originalURI));

  // actually using the horrible mess that's a feed: URI is suicidal
  do_check_true(httpURI.equals(feedChannel.URI));
  do_check_true(httpURI.equals(httpChannel.URI));
  do_check_true(httpsURI.equals(httpsChannel.URI));

  // trying to create a feed URI with something non-http(s) as the inner URL
  // should fail, until someone fixes bug 408599
  try {
    var dataFeedURI = ios.newURI("feed:data:text/xml,<rss/>", null, null);
    do_throw("Not reached");
  } catch (e if (e instanceof Ci.nsIException &&
                 e.result == NS_ERROR_MALFORMED_URI)) {
    // do nothing
  }
  try {
    var ftpFeedURI = ios.newURI("feed:ftp://example.com/feed.xml", null, null);
    do_throw("Not reached");
  } catch (e if (e instanceof Ci.nsIException &&
                 e.result == NS_ERROR_MALFORMED_URI)) {
    // do nothing
  }
  try {
    var fileFeedURI = ios.newURI("feed:file:///var/feed.xml", null, null);
    do_throw("Not reached");
  } catch (e if (e instanceof Ci.nsIException &&
                 e.result == NS_ERROR_MALFORMED_URI)) {
    // do nothing
  }
}