constructors.html - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /webidl/ecmascript-binding/constructors.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset=utf-8>

<title>Realm for constructed objects</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id=log></div>

<script>

function object_realm(dp) {

  // Note that browsers use the URL of the relevant global object's associated

  // Document.

  // https://github.com/w3c/DOM-Parsing/issues/46

  var url = DOMParser.prototype.parseFromString.call(dp, "x", "text/html").documentURI;

  var file = url.slice(url.lastIndexOf("/") + 1);

  switch (file) {

  case "constructors.html":

    return "parent window";

  case "constructors-support.html":

    return "child window";

  default:

    return "???";

async_test(function() {

  var iframe = document.createElement("iframe");

  iframe.onload = this.step_func_done(function() {

    var child = iframe.contentWindow;

    test(function() {

      var dp = new DOMParser();

      assert_equals(Object.getPrototypeOf(dp), DOMParser.prototype);

      assert_equals(object_realm(dp), "parent window");

    }, "Normal constructor in parent window");

    test(function() {

      var dp = new child.DOMParser();

      assert_equals(Object.getPrototypeOf(dp), child.DOMParser.prototype);

      assert_equals(object_realm(dp), "child window");

    }, "Normal constructor in child window");

    test(function() {

      var dp = Reflect.construct(child.DOMParser, [], DOMParser);

      assert_equals(Object.getPrototypeOf(dp), DOMParser.prototype);

      assert_equals(object_realm(dp), "child window");

    }, "Constructor in child window with normal NewTarget from parent window");

    test(function() {

      var dp = Reflect.construct(DOMParser, [], child.DOMParser);

      assert_equals(Object.getPrototypeOf(dp), child.DOMParser.prototype);

      assert_equals(object_realm(dp), "parent window");

    }, "Constructor in parent window with normal NewTarget from child window");

    test(function() {

      class DOMParserSubclass extends DOMParser {}

      var dp = new DOMParserSubclass();

      assert_equals(Object.getPrototypeOf(dp), DOMParserSubclass.prototype);

      assert_equals(object_realm(dp), "parent window");

    }, "Subclass constructor in parent window");

    test(function() {

      var dp = new child.DOMParserSubclass();

      assert_equals(Object.getPrototypeOf(dp), child.DOMParserSubclass.prototype);

      assert_equals(object_realm(dp), "child window");

    }, "Subclass constructor in child window");

    test(function() {

      class ForeignDOMParserSubclass extends child.DOMParser {}

      var dp = new ForeignDOMParserSubclass();

      assert_equals(Object.getPrototypeOf(dp), ForeignDOMParserSubclass.prototype);

      assert_equals(object_realm(dp), "child window");

    }, "Subclass constructor in parent window with parent class in child window");

    test(function() {

      var dp = new child.ForeignDOMParserSubclass();

      assert_equals(Object.getPrototypeOf(dp), child.ForeignDOMParserSubclass.prototype);

      assert_equals(object_realm(dp), "parent window");

    }, "Subclass constructor in child window with parent class in parent window");

    test(function() {

      var badNewTarget = function() {};

      badNewTarget.prototype = 7;

      var dp = Reflect.construct(child.DOMParser, [], badNewTarget);

      assert_equals(Object.getPrototypeOf(dp), DOMParser.prototype);

      assert_equals(object_realm(dp), "child window");

    }, "Constructor in child window with bad NewTarget from parent window");

    test(function() {

      var dp = Reflect.construct(DOMParser, [], child.badNewTarget);

      assert_equals(Object.getPrototypeOf(dp), child.DOMParser.prototype);

      assert_equals(object_realm(dp), "parent window");

    }, "Constructor in parent window with bad NewTarget from child window");

    test(function() {

      var badNewTarget = Function.prototype.bind.call(new child.Function());

      badNewTarget.prototype = 7;

      var dp = Reflect.construct(DOMParser, [], badNewTarget);

      assert_equals(Object.getPrototypeOf(dp), child.DOMParser.prototype);

      assert_equals(object_realm(dp), "parent window");

    }, "Constructor in parent window with bad NewTarget from parent window that's a bound child window function");

    test(function() {

      var badNewTarget = child.Function.prototype.bind.call(new Function());

      badNewTarget.prototype = 7;

      var dp = Reflect.construct(child.DOMParser, [], badNewTarget);

      assert_equals(Object.getPrototypeOf(dp), DOMParser.prototype);

      assert_equals(object_realm(dp), "child window");

    }, "Constructor in child window with bad NewTarget from child window that's a bound parent window function");

    test(function() {

      var badNewTarget = new Proxy(new child.Function(), {});

      badNewTarget.prototype = 7;

      var dp = Reflect.construct(DOMParser, [], badNewTarget);

      assert_equals(Object.getPrototypeOf(dp), child.DOMParser.prototype);

      assert_equals(object_realm(dp), "parent window");

    }, "Constructor in parent window with bad NewTarget from parent window that's a proxy for a child window function");

    test(function() {

      var badNewTarget = new child.Proxy(new Function(), {});

      badNewTarget.prototype = 7;

      var dp = Reflect.construct(child.DOMParser, [], badNewTarget);

      assert_equals(Object.getPrototypeOf(dp), DOMParser.prototype);

      assert_equals(object_realm(dp), "child window");

    }, "Constructor in child window with bad NewTarget from child window that's a proxy for a parent window function");

});

  iframe.src = "support/constructors-support.html";

  document.body.appendChild(iframe);

});

</script>