public void SubtractTest()
{
LinqToSparqlExpTranslator<Track> target = new LinqToSparqlExpTranslator<Track>();
target.TypeTranslator = new XsdtTypeConverter();
Expression e = Expression.Subtract(EH.Member(GetType().GetProperty("IntTestProperty")), Expression.Constant(1));
StringBuilder sb = new StringBuilder();
target.StringBuilder = sb;
target.Subtract(e);
string actualResult = sb.ToString();
string expectedResult = "(?IntTestProperty)-(1)";
Assert.AreEqual(expectedResult, actualResult);
}