LayoutTests/fast/html/HTMLCollection-set-property.html

<!DOCTYPE html>
<html>
<body>
<script src="../../resources/js-test.js"></script>
<input type="text" id="length" name="length">
<input type="text" id="action" name="action">
<input type="text" id="testInput" name="testInput">
<script>
description("Tests setting properties on HTMLCollection");

collection = document.getElementsByTagName("input");

shouldBe("collection.length", "3");
shouldBe("collection.action", "document.getElementById('action')");
shouldBe("collection[0]", "document.getElementById('length')");
shouldBe("collection.testInput", "document.getElementById('testInput')");
shouldBeUndefined("collection.foo");

evalAndLog("collection.length = 'about:blank'");
evalAndLog("collection[0] = 'bar'");
shouldBe("collection.length", "3");
evalAndLog("document.getElementById('length').remove()");
shouldBe("collection.length", "2");

evalAndLog("collection.action = 'about:blank'");
shouldBe("collection.action", "document.getElementById('action')");
evalAndLog("document.getElementById('action').remove()");
shouldBeUndefined("collection.action");

evalAndLog("collection.testInput = 'test'");
shouldBe("collection.testInput", "document.getElementById('testInput')");
evalAndLog("document.getElementById('testInput').remove()");
shouldBeUndefined("collection.testInput");

evalAndLog("collection.foo = 'test'");
shouldBeEqualToString("collection.foo", "test");

shouldBeUndefined("collection[0]", "bar");
</script>
</body>
</html>