public void BuildEqualExpression()
{
//Arrange
List <Person> people = FakeData.People();
Expression <Func <Person, bool> > express = PredicateBuilder.BuildEqual <Person>("Age", 70);
Func <Person, bool> func = express.Compile();
var result = people.Where(func);
var expectedResult = people.Where(p => p.Age == 70);
Assert.That(result.Count(), Is.EqualTo(expectedResult.Count()));
}