From 2477d85e1b09558cea15a13a4b3b4f5326d77d05 Mon Sep 17 00:00:00 2001
From: Ms2ger <Ms2ger@gmail.com>
Date: Wed, 6 Mar 2019 16:52:21 +0000
Subject: [PATCH] Bug 1529462 [wpt PR 15482] - Add some tests for the realms
 involved in creating new platform objects., a=testonly

Automatic update from web-platform-tests
Add some tests for the realms involved in creating new platform objects. (#15482)

--

wpt-commits: 1b2fbac6ae44eb3b88c1b01da2d2358eb2f7ef45
wpt-pr: 15482
---
 .../constructors-support.html                 |  8 ++
 .../ecmascript-binding/constructors.html      | 96 +++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 testing/web-platform/tests/WebIDL/ecmascript-binding/constructors-support.html
 create mode 100644 testing/web-platform/tests/WebIDL/ecmascript-binding/constructors.html
diff --git a/testing/web-platform/tests/WebIDL/ecmascript-binding/constructors-support.html b/testing/web-platform/tests/WebIDL/ecmascript-binding/constructors-support.html
new file mode 100644
index 000000000000..3b2616170b1d
--- /dev/null
+++ b/testing/web-platform/tests/WebIDL/ecmascript-binding/constructors-support.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<script>
+window.badNewTarget = function() {};
+badNewTarget.prototype = 8;
+
+window.DOMParserSubclass = class extends DOMParser {}
+window.ForeignDOMParserSubclass = class extends parent.DOMParser {}
+</script>
diff --git a/testing/web-platform/tests/WebIDL/ecmascript-binding/constructors.html b/testing/web-platform/tests/WebIDL/ecmascript-binding/constructors.html
new file mode 100644
index 000000000000..423e1bed2282
--- /dev/null
+++ b/testing/web-platform/tests/WebIDL/ecmascript-binding/constructors.html
@@ -0,0 +1,96 @@
+<!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");
+  });
+  iframe.src = "constructors-support.html";
+  document.body.appendChild(iframe);
+});
+</script>
