<!DOCTYPE html>
<html>
<head>
</head>
<body>
    <script src="../../resources/js-test.js"></script>
    <script>
        description("This tests that 'Selection' methods throw exceptions with reasonable messages.");

        shouldThrow('getSelection().collapse(document.documentElement, -1)', '"IndexSizeError: Failed to execute \'collapse\' on \'Selection\': The offset 4294967295 is invalid."');

        getSelection().empty();
        shouldThrow('getSelection().collapseToStart()', '"InvalidStateError: Failed to execute \'collapseToStart\' on \'Selection\': there is no selection."');
        shouldThrow('getSelection().collapseToEnd()', '"InvalidStateError: Failed to execute \'collapseToEnd\' on \'Selection\': there is no selection."');

        shouldThrow('getSelection().setBaseAndExtent(document.documentElement, -1, document.documentElement, 0)', '"IndexSizeError: Failed to execute \'setBaseAndExtent\' on \'Selection\': The offset 4294967295 is invalid."');
        shouldThrow('getSelection().setBaseAndExtent(document.documentElement, 0, document.documentElement, -1)', '"IndexSizeError: Failed to execute \'setBaseAndExtent\' on \'Selection\': The offset 4294967295 is invalid."');

        shouldThrow('getSelection().collapse(document.documentElement, -1)', '"IndexSizeError: Failed to execute \'collapse\' on \'Selection\': The offset 4294967295 is invalid."');

        shouldThrow('getSelection().getRangeAt(-1)', '"IndexSizeError: Failed to execute \'getRangeAt\' on \'Selection\': 4294967295 is not a valid index."');

        shouldThrow('getSelection().extend(0, -1)', '"TypeError: Failed to execute \'extend\' on \'Selection\': parameter 1 is not of type \'Node\'."');
        getSelection().addRange(document.createRange());
        shouldThrow('getSelection().extend(document.documentElement, -1)', '"IndexSizeError: Failed to execute \'extend\' on \'Selection\': The offset 4294967295 is invalid."');
        shouldThrow('getSelection().extend(document.documentElement, 1000)', '"IndexSizeError: Failed to execute \'extend\' on \'Selection\': There is no child at offset 1000."');
    </script>
</body>
</html>