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<!doctype html>
<meta charset="utf-8" />
<meta name="author" title="Keith Cirkel" href="mailto:wpt@keithcirkel.co.uk" />
<link rel="help" href="https://open-ui.org/components/invokers.explainer/" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/invoker-utils.js"></script>
<div id="div"></div>
<button id="button"></button>
<script>
test(function () {
const event = new CommandEvent("test");
assert_equals(event.command, "");
assert_readonly(event, "command", "readonly attribute value");
}, "command is a readonly defaulting to ''");
test(function () {
const event = new CommandEvent("test");
assert_equals(event.source, null);
assert_readonly(event, "source", "readonly attribute value");
}, "source is readonly defaulting to null");
test(function () {
const event = new CommandEvent("test", { command: "sAmPle" });
assert_equals(event.command, "sAmPle");
}, "command reflects initialized attribute");
test(function () {
const event = new CommandEvent("test", { command: undefined });
assert_equals(event.command, "");
}, "command set to undefined");
test(function () {
const event = new CommandEvent("test", { command: null });
assert_equals(event.command, "null");
}, "command set to null");
test(function () {
const event = new CommandEvent("test", { command: false });
assert_equals(event.command, "false");
}, "command set to false");
test(function () {
const event = new CommandEvent("test", { command: "" });
assert_equals(event.command, "");
}, "command explicitly set to empty string");
test(function () {
const event = new CommandEvent("test", { command: true });
assert_equals(event.command, "true");
}, "command set to true");
test(function () {
const event = new CommandEvent("test", { command: 0.5 });
assert_equals(event.command, "0.5");
}, "command set to a number");
test(function () {
const event = new CommandEvent("test", { command: [] });
assert_equals(event.command, "");
}, "command set to []");
test(function () {
const event = new CommandEvent("test", { command: [1, 2, 3] });
assert_equals(event.command, "1,2,3");
}, "command set to [1, 2, 3]");
test(function () {
const event = new CommandEvent("test", { command: { sample: 0.5 } });
assert_equals(event.command, "[object Object]");
}, "command set to an object");
test(function () {
const event = new CommandEvent("test", {
command: {
toString() {
return "sample";
},
},
});
assert_equals(event.command, "sample");
}, "command set to an object with a toString function");
test(function () {
const eventInit = { command: "sample", source: document.body };
const event = new CommandEvent("test", eventInit);
assert_equals(event.command, "sample");
assert_equals(event.source, document.body);
}, "CommandEventInit properties set value");
test(function () {
const eventInit = {
command: "open",
source: document.getElementById("div"),
};
const event = new CommandEvent("beforetoggle", eventInit);
assert_equals(event.command, "open");
assert_equals(event.source, document.getElementById("div"));
}, "CommandEventInit properties set value 2");
test(function () {
const eventInit = {
command: "closed",
source: document.getElementById("button"),
};
const event = new CommandEvent("toggle", eventInit);
assert_equals(event.command, "closed");
assert_equals(event.source, document.getElementById("button"));
}, "CommandEventInit properties set value 3");
test(function () {
const event = new CommandEvent("test", { source: undefined });
assert_equals(event.source, null);
}, "source set to undefined");
test(function () {
const event = new CommandEvent("test", { source: null });
assert_equals(event.source, null);
}, "source set to null");
test(function () {
assert_throws_js(
TypeError,
function () {
new CommandEvent("test", { source: false });
},
"source is not an object",
);
}, "source set to false");
test(function () {
assert_throws_js(
TypeError,
function () {
const event = new CommandEvent("test", { source: true });
},
"source is not an object",
);
}, "source set to true");
test(function () {
assert_throws_js(
TypeError,
function () {
const event = new CommandEvent("test", { source: {} });
},
"source is not an object",
);
}, "source set to {}");
test(function () {
assert_throws_js(
TypeError,
function () {
const eventInit = { command: "closed", source: new XMLHttpRequest() };
const event = new CommandEvent("toggle", eventInit);
},
"source is not an Element",
);
}, "source set to non-Element EventTarget");
</script>
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