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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webidl/ecmascript-binding/legacy-platform-object/Set.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>Legacy platform objects [[Set]] method</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(function() {
var element = document.createElement("div");
element.appendChild(document.createElement("div"));
element.childNodes["5"] = "foo";
assert_equals(element.childNodes["5"], undefined);
}, "must not set the property value when assigning to a numeric property on an object which implements an indexed property getter but not a setter when not in strict mode");
test(function() {
"use strict";
var element = document.createElement("div");
element.appendChild(document.createElement("div"));
assert_throws_js(TypeError, function() { element.childNodes["5"] = "foo"; });
}, "must throw when assigning to a numeric property on an object which implements a indexed property getter but not a setter in strict mode");
test(function() {
var element = document.createElement("div");
element.attributes.foo = "foo";
assert_equals(element.attributes.foo, "foo");
}, "must allow assigning to a named property on an object which implements a named property getter but not a setter when not in strict mode");
test(function() {
"use strict";
var element = document.createElement("div");
element.attributes.foo = "foo";
assert_equals(element.attributes.foo, "foo");
}, "must allow assigning to a named property on an object which implements a named property getter but not a setter in strict mode");
test(function() {
"use strict";
var form = document.createElement("form");
assert_equals(form.method, "get");
var input = document.createElement("input");
input.name = "method";
input.id = "method";
form.appendChild(input);
assert_equals(form.method, input);
form.method = "post";
assert_equals(form.method, input);
input.remove();
assert_equals(form.method, "post");
}, "must allow setting built-in property on a [LegacyOverrideBuiltIns] object even if a named property shadows it");
var symbol = Symbol();
test(function() {
var element = document.createElement("div");
element.appendChild(document.createElement("div"));
element.childNodes[symbol] = "foo";
assert_equals(element.childNodes[symbol], "foo");
}, "must allow assigning to a symbol property on an object which implements an indexed property getter but not a setter when not in strict mode");
test(function() {
"use strict";
var element = document.createElement("div");
element.appendChild(document.createElement("div"));
element.childNodes[symbol] = "foo";
assert_equals(element.childNodes[symbol], "foo");
}, "must allow assigning to a symbol property on an object which implements an indexed property getter but not a setter in strict mode");
test(function() {
var element = document.createElement("div");
element.attributes[symbol] = "foo";
assert_equals(element.attributes[symbol], "foo");
}, "must allow assigning to a symbol property on an object which implements indexed and named property getters but no setters when not in strict mode");
test(function() {
"use strict";
var element = document.createElement("div");
element.attributes[symbol] = "foo";
assert_equals(element.attributes[symbol], "foo");
}, "must allow assigning to a symbol property on an object which implements indexed and named property getters but no setters in strict mode");
test(function() {
sessionStorage.clear();
this.add_cleanup(function() { sessionStorage.clear(); });
sessionStorage[symbol] = "foo";
assert_equals(sessionStorage[symbol], "foo");
}, "must allow assigning to a symbol property on an object which implements indexed and named property getters and setters when not in strict mode");
test(function() {
"use strict";
sessionStorage.clear();
this.add_cleanup(function() { sessionStorage.clear(); });
sessionStorage[symbol] = "foo";
assert_equals(sessionStorage[symbol], "foo");
}, "must allow assigning to a symbol property on an object which implements indexed and named property getters and setters in strict mode");
</script>