<!DOCTYPE html>
<html>
<body>
<script src="../../resources/js-test.js"></script>
<script>
description("Tests for the HTMLFormElement.relList attribute.");

let form = document.createElement("form");
shouldBeTrue("form.relList.supports('noopener')");
shouldBeTrue("form.relList.supports('noreferrer')");
shouldBeFalse("form.relList.supports('foo')");
shouldBeEqualToString("form.rel", "");
shouldBe("form.relList.length", "0");
evalAndLog("form.rel = 'noopener noreferrer';");
shouldBeEqualToString("form.rel", "noopener noreferrer");
shouldBeEqualToString("form.getAttribute('rel')", "noopener noreferrer");
shouldBe("form.relList.length", "2");
shouldBeTrue("form.relList.contains('noopener')");
shouldBeTrue("form.relList.contains('noreferrer')");
shouldBeFalse("form.relList.contains('foo')");
evalAndLog("form.setAttribute('rel', '');");
shouldBeEqualToString("form.rel", "");
shouldBeEqualToString("form.getAttribute('rel')", "");
shouldBe("form.relList.length", "0");
shouldBeFalse("form.relList.contains('noopener')");
shouldBeFalse("form.relList.contains('noreferrer')");
shouldBeFalse("form.relList.contains('foo')");
evalAndLog("form.setAttribute('rel', 'noreferrer');");
shouldBeEqualToString("form.rel", "noreferrer");
shouldBeEqualToString("form.getAttribute('rel')", "noreferrer");
shouldBe("form.relList.length", "1");
shouldBeFalse("form.relList.contains('noopener')");
shouldBeTrue("form.relList.contains('noreferrer')");
shouldBeFalse("form.relList.contains('foo')");
evalAndLog("form.relList = 'noopener';");
shouldBeEqualToString("form.rel", "noopener");
shouldBeEqualToString("form.getAttribute('rel')", "noopener");
shouldBe("form.relList.length", "1");
shouldBeTrue("form.relList.contains('noopener')");
shouldBeFalse("form.relList.contains('noreferrer')");
shouldBeFalse("form.relList.contains('foo')");
</script>
</body>
</html>