third_party/WebKit/LayoutTests/fast/dom/script-tests/event-handlers.js

   1 function getObject(interface) {
   2     switch(interface) {
   3         case "Element":
   4             var e = document.createElementNS("http://example.com/", "example");
   5             assert_true(e instanceof Element);
   6             assert_false(e instanceof HTMLElement);
   7             assert_false(e instanceof SVGElement);
   8             return e;
   9         case "HTMLElement":
  10             var e = document.createElement("html");
  11             assert_true(e instanceof HTMLElement);
  12             return e;
  13         case "HTMLBodyElement":
  14             var e = document.createElement("body");
  15             assert_true(e instanceof HTMLBodyElement);
  16             return e;
  17         case "HTMLFormElement":
  18             var e = document.createElement("form");
  19             assert_true(e instanceof HTMLFormElement);
  20             return e;
  21         case "HTMLFrameSetElement":
  22             var e = document.createElement("frameset");
  23             assert_true(e instanceof HTMLFrameSetElement);
  24             return e;
  25         case "SVGElement":
  26             var e = document.createElementNS("http://www.w3.org/2000/svg", "rect");
  27             assert_true(e instanceof SVGElement);
  28             return e;
  29         case "Document":
  30             assert_true(document instanceof Document);
  31             return document;
  32         case "Window":
  33             assert_true(window instanceof Window);
  34             return window;
  35     }
  36     assert_unreached();
  37 }
  38 function testSet(interface, attribute) {
  39     test(function() {
  40         var object = getObject(interface);
  41         function nop() {}
  42         assert_equals(object[attribute], null, "Initially null");
  43         object[attribute] = nop;
  44         assert_equals(object[attribute], nop, "Return same function");
  45         object[attribute] = "";
  46         assert_equals(object[attribute], null, "Return null after setting string");
  47         object[attribute] = null;
  48         assert_equals(object[attribute], null, "Finally null");
  49     }, "Set " + interface + "." + attribute);
  50 }
  51 function testReflect(interface, attribute) {
  52     test(function() {
  53         var element = getObject(interface);
  54         assert_false(element.hasAttribute(attribute), "Initially missing");
  55         element.setAttribute(attribute, "return");
  56         assert_equals(element.getAttribute(attribute), "return", "Return same string");
  57         assert_equals(typeof element[attribute], "function", "Convert to function");
  58         element.removeAttribute(attribute);
  59     }, "Reflect " + interface + "." + attribute);
  60 }
  61 function testForwardToWindow(interface, attribute) {
  62     test(function() {
  63         var element = getObject(interface);
  64         window[attribute] = null;
  65         element.setAttribute(attribute, "return");
  66         assert_equals(typeof window[attribute], "function", "Convert to function");
  67         assert_equals(window[attribute], element[attribute], "Forward content attribute");
  68         function nop() {}
  69         element[attribute] = nop;
  70         assert_equals(window[attribute], nop, "Forward IDL attribute");
  71         window[attribute] = null;
  72     }, "Forward " + interface + "." + attribute + " to Window");
  73 }
  74 // Object.propertyIsEnumerable cannot be used because it doesn't
  75 // work with properties inherited through the prototype chain.
  76 function getEnumerable(interface) {
  77     var enumerable = {};
  78     for (var attribute in getObject(interface)) {
  79         enumerable[attribute] = true;
  80     }
  81     return enumerable;
  82 }
  83 var enumerableCache = {};
  84 function testEnumerate(interface, attribute) {
  85     if (!(interface in enumerableCache)) {
  86         enumerableCache[interface] = getEnumerable(interface);
  87     }
  88     test(function() {
  89         assert_true(enumerableCache[interface][attribute]);
  90     }, "Enumerate " + interface + "." + attribute);
  91 }