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<!DOCTYPE html>
<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<dialog></dialog>
<script>
test(function() {
dialog = document.querySelector('dialog');
assert_equals(dialog.returnValue, '');
dialog.returnValue = 'Setting value directly';
assert_equals(dialog.returnValue, 'Setting value directly');
dialog.returnValue = null;
assert_equals(dialog.returnValue, 'null');
dialog.returnValue = '';
assert_equals(dialog.returnValue, '');
dialog.returnValue = 7;
assert_equals(dialog.returnValue, '7');
dialog.show();
dialog.close('Return value set from close()');
assert_equals(dialog.returnValue, 'Return value set from close()');
dialog.show();
dialog.close('');
assert_equals(dialog.returnValue, '');
dialog.show();
dialog.close(null);
assert_equals(dialog.returnValue, 'null');
dialog.returnValue = 'Should not change because no argument to close()';
dialog.show();
dialog.close();
assert_equals(dialog.returnValue, 'Should not change because no argument to close()');
dialog.returnValue = 'Should not change because of undefined argument to close()';
dialog.show();
dialog.close(undefined);
assert_equals(dialog.returnValue, 'Should not change because of undefined argument to close()');
dialog.returnValue = 'Should not change because of no-op close()';
dialog.close('blah');
assert_equals(dialog.returnValue, 'Should not change because of no-op close()');
}, "Tests dialog.returnValue is settable and returns the last value set.");
</script>
</body>
</html>
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