public int element_13()
{
bool isAttr = (bool)CurVariation.Params[0];
string exp = (string)CurVariation.Params[1];
double a = 1;
double b = 0;
double c = 1;
double d = -a * b / c;
using (XmlWriter w = CreateWriter())
{
w.WriteStartElement("Root");
if (isAttr) w.WriteStartAttribute("b");
w.WriteValue(d);
w.WriteEndElement();
}
return (CompareString(exp)) ? TEST_PASS : TEST_FAIL;
}