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[9, "x"].forEach(function(key) {
test(function() {
var element = document.createElement("div");
var dataset = element.dataset;
var value = "value for " + this.name;
assert_equals(dataset[key], undefined);
element.setAttribute("data-" + key, value);
assert_equals(element.getAttribute("data-" + key), value);
assert_equals(dataset[key], value);
var propdesc = Object.getOwnPropertyDescriptor(dataset, key);
assert_not_equals(propdesc, undefined);
assert_equals(propdesc.value, value);
assert_true(propdesc.writable);
assert_true(propdesc.enumerable);
assert_true(propdesc.configurable);
}, "Getting property descriptor for key " + key);
test(function() {
var element = document.createElement("div");
var dataset = element.dataset;
var proto = "proto getter for " + this.name;
var calledSetter = [];
Object.defineProperty(DOMStringMap.prototype, key, {
"get": function() { return proto; },
"set": this.unreached_func("Should not call [[Set]] on prototype"),
"configurable": true,
});
this.add_cleanup(function() {
delete DOMStringMap.prototype[key];
});
var value = "value for " + this.name;
assert_equals(dataset[key], proto);
assert_equals(element.getAttribute("data-" + key), null);
assert_equals(dataset[key] = value, value);
assert_equals(dataset[key], value);
assert_equals(element.getAttribute("data-" + key), value);
}, "Setting property for key " + key + " with accessor property on prototype");
});
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