Sync Navigator.getGamepads() with the spec

LayoutTests/gamepad/gamepad-polling-access.html

Index: LayoutTests/gamepad/gamepad-polling-access.html
diff --git a/LayoutTests/gamepad/gamepad-polling-access.html b/LayoutTests/gamepad/gamepad-polling-access.html
index 9bc59a50000bf0ea0e608d7e1eaaa4d61e4238d7..a156b9a545d1c888c93a5d28c6422cfa7ccf4782 100644
--- a/LayoutTests/gamepad/gamepad-polling-access.html
+++ b/LayoutTests/gamepad/gamepad-polling-access.html
@@ -9,22 +9,38 @@
         gamepadController.disconnect(1);
         gamepadController.disconnect(2);
         gamepadController.disconnect(3);
-        shouldBe("navigator.getGamepads().length", "4");
-        shouldBeNull("navigator.getGamepads().item(0)");
-        shouldBeNull("navigator.getGamepads().item(1)");
-        shouldBeNull("navigator.getGamepads().item(2)");
-        shouldBeNull("navigator.getGamepads().item(3)");
-        shouldBeUndefined("navigator.getGamepads()[0]");
-        shouldBeUndefined("navigator.getGamepads()[1]");
-        shouldBeUndefined("navigator.getGamepads()[2]");
-        shouldBeUndefined("navigator.getGamepads()[3]");
+
+        shouldBeType("navigator.getGamepads()", "Array");
+        shouldBe("navigator.getGamepads().length", "0");
+        shouldBeFalse("navigator.getGamepads().hasOwnProperty(0)");
+        shouldBeFalse("navigator.getGamepads().hasOwnProperty(1)");
 
         // connect and disconnect
         gamepadController.connect(0);
-        shouldBeNonNull("navigator.getGamepads()[0]");
+        shouldBe("navigator.getGamepads().length", "1");
+        shouldBeTrue("navigator.getGamepads().hasOwnProperty(0)");
+        shouldBeType("navigator.getGamepads()[0]", "Gamepad");
+        shouldBe("navigator.getGamepads()[0].index", "0");
+        shouldBeFalse("navigator.getGamepads().hasOwnProperty(1)");
+        gamepadController.connect(1);
+        shouldBe("navigator.getGamepads().length", "2");
+        shouldBeTrue("navigator.getGamepads().hasOwnProperty(0)");
+        shouldBeType("navigator.getGamepads()[0]", "Gamepad");
+        shouldBe("navigator.getGamepads()[0].index", "0");
+        shouldBeTrue("navigator.getGamepads().hasOwnProperty(1)");
+        shouldBeType("navigator.getGamepads()[1]", "Gamepad");
+        shouldBe("navigator.getGamepads()[1].index", "1");
         gamepadController.disconnect(0);
-        shouldBeNull("navigator.getGamepads().item(0)");
-        shouldBeUndefined("navigator.getGamepads()[0]");
+        shouldBe("navigator.getGamepads().length", "2");
+        shouldBeTrue("navigator.getGamepads().hasOwnProperty(0)"); // FIXME
+        shouldBeNull("navigator.getGamepads()[0]"); // FIXME
+        shouldBeTrue("navigator.getGamepads().hasOwnProperty(1)");
+        shouldBeType("navigator.getGamepads()[1]", "Gamepad");
+        shouldBe("navigator.getGamepads()[1].index", "1");
+        gamepadController.disconnect(1);
+        shouldBe("navigator.getGamepads().length", "0");
+        shouldBeFalse("navigator.getGamepads().hasOwnProperty(0)");
+        shouldBeFalse("navigator.getGamepads().hasOwnProperty(1)");
 
         // connect again, and check standard access
         gamepadController.connect(0);