<!doctype html>
<meta charset=utf-8>
<title>Test behavior of rel="noopener" links</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<iframe name="oursubframe"></iframe>
<a href="support/noopener-target-2.html" rel="noopener" target="ourpopup"></a>
<a href="support/noopener-target-2.html" rel="noopener" target="oursubframe"></a>
<script>
var tests = [];
// First test the special targets
function target1Loaded(win) {
  // Find the relevant test
  var test = tests.find((t) => t.openedWindow == win);
  test.step(function() {
    assert_equals(win.opener, window);
    win.close();
    test.done();
  });
}
/**
 * Test that <a rel="noopener"> targeted at one of _self, _parent, _top does the
 * load in the appropriate existing browsing context instead of opening a new
 * one.  The test is run in a separate popup window we open and which we can
 * navigate without causing the test harness going into conniptions.
 */
for (var target of ["self", "parent", "top"]) {
  var t = async_test("Check that rel=noopener with target=_" + target + " does a normal load");
  tests.push(t);
  t.openedWindow = window.open("support/noopener-popup.html");
  t.targetName = target;
  t.openedWindow.onload = t.step_func(function() {
    this.openedWindow.findLink(this.targetName).click();
  });
}

/**
 * And now check that a noopener load targeted at something other than one of
 * the three special targets above is still able to reuse existing things with the
 * given name.  We do this in two ways.  First, by opening a window named
 * "ourpopup" and then doing a load via <a rel="noopener" target="ourpopup"> and
 * verifying that the load happens in a window with a null opener, etc, while
 * the opener of the thing we opened is not modified.  And second, by targeting
 * <a rel="noopener"> at a name that an existing subframe has, and ensuring that
 * this subframe is not navigated.
 */
var t1 = async_test("Check that targeting of rel=noopener with a given name reuses an existing window with that name");
var w;
t1.add_cleanup(function() { w.close(); });
var channel = new BroadcastChannel("ourpopup");
channel.onmessage = t1.step_func_done(function(e) {
  var data = e.data;
  assert_true(data.hasOpener);
  assert_false(data.hasParent);
  assert_equals(data.name, "ourpopup");
  assert_equals(w.opener, window);
  assert_not_equals(w.location.href, "about:blank");
});
t1.step(function() {
  w = window.open("", "ourpopup");
  assert_equals(w.opener, window);
  document.querySelectorAll("a")[0].click();
});

var t2 = async_test("Check that targeting of rel=noopener with a given name reuses an existing subframe with that name");
var channel = new BroadcastChannel("oursubframe");
channel.onmessage = t2.step_func_done(function(e) {
  var data = e.data;
  assert_false(data.hasOpener);
  assert_true(data.hasParent);
  assert_equals(data.name, "oursubframe");
  assert_not_equals(document.querySelector("iframe").contentWindow.location.href,
                    "about:blank");
});
t2.step(function() {
  document.querySelectorAll("a")[1].click();
});
</script>