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!DOCTYPE html>
<html>
<head>
<link rel="help" href="http://www.w3.org/TR/2012/WD-dom-20121206/#text">
<script src="../../resources/js-test.js"></script>
</head>
<body>
<script>
description("Tests that the Text API arguments are correctly validated.");
var text = document.createTextNode("abcdefg");
shouldBeEqualToString("text.data", "abcdefg");
shouldBe("text.__proto__", "Text.prototype");
// Text splitText(unsigned long offset)
shouldBeEqualToString("text.splitText(4).data", "efg");
shouldBeEqualToString("text.data", "abcd");
shouldThrow("text.splitText()", '"TypeError: Failed to execute \'splitText\' on \'Text\': 1 argument required, but only 0 present."');
shouldBeEqualToString("text.data", "abcd");
shouldThrow("text.splitText(999)", '"IndexSizeError: Failed to execute \'splitText\' on \'Text\': The offset 999 is larger than the Text node\'s length."'); // offset greater than length
shouldBeEqualToString("text.data", "abcd");
shouldThrow("text.splitText(-1)", '"IndexSizeError: Failed to execute \'splitText\' on \'Text\': The offset 4294967295 is larger than the Text node\'s length."'); // offset greater than length (after wrapping)
shouldBeEqualToString("text.data", "abcd");
shouldBeEqualToString("text.splitText(-4294967294).data", "cd"); // Wraps to 2, which is a valid offset.
shouldBeEqualToString("text.data", "ab");
</script>
</body>
</html>
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